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HP Sprinkler 54505B User's Manual

1. L T B 21 Horizontal Magnification and Center Frequency Control B 21 Selectable Windows 0 0 ccc cc cece cc eese B 22 FFT Operating Characteristics 00 00 020 c iius B 22 Spectrum Displays 0 cece ccc nce ccc ccceececees B 24 OA AN B 24 Programmability 2 00 00 cece ccc cece eee B 24 HP 54505B 54506B 54510B 54512B Front Panel Reference introduction The HP 54505B HP 54506B HP 54510B and HP 54512B Digitizing Oscilloscopes are general purpose repetitive and real time oscilloscopes fully programmabie and transportable The HP 54505B and HP 54510B have two input channels and an external trigger input while the HP 54506B and HP 54512B have four input channels Full HP IB programmability is incorporated for use in a broad range of HP IB applications from high speed ATE to device characterization in research and development environments Both models also feature powerful triggering easy waveform storage automatic measurements and instant hardcopy output Both the oscilloscopes feature an easy to use human interface yet each has many sophisticated capabilities and multiple triggering functions Waveforms are easily stored for future reference waveform mcasurements are automatic and instant hardcopy is available when the oscilloscope is used with an HP IB compatible printer or plotter Some of the key features of the HP 54505B HP 54506B HP 54510B and HP 54512B are listed here
2. In the case of saving to nonvolatile memory one memory may be selected Selection of the memory pair containing the comparison waveform is not allowed If multiple failures occur only the last failure data is saved because the most current data will overwrite the memory contents More than one source can specify the same nonvolatile memory An attempted write to protected nonvolatile memory will result in a message e When saving to multiple memory up to 665 records can be saved data includes time date If multiple failures occur and stop after fail mode ts selected then the test will terminate after all available memory space is filled If the continue after fail mode is selected the data records will wrap around If more than one source is specified with a multiple destination then the data records will be partitioned between the specified sources e ifthe data is saved to pixel memory an accumulated save occurs No measurements may be made on the pixel data e Asaveto hardcopy immediately sends the data to the peripheral device If any source is designated as multiple then the hard copy is performed after all 665 multiple memories are filled Hardcopy will be aborted if a device is not properly connected Asaveto off turns off the save function and no save is affected HP 84505B 54506B 54510B 54512B Define Measure Menu Fromi Panel Reference 11 13 Note If the compare test is on with save to hardcopy and after f
3. 9 8 HEWLETT Copyright Hewlett Packard Company 1992 Publication 54512 90904 Printed in the U S A May 1992 according to ISO IEC Guide 22 and EN 45014 Manufacturer s Name Hewlett Packard Company Manufacturer s Address 1900 Garden of the Gods Road Colorado Springs CO 80901 U S A declares that the product Product Name Digitizing Oscilloscope Model Number s HP 54505B 945068 54510B 54512B Product Options All conforms to the following product specifications Safety IEC 348 HD 401 UL 1244 CSA C22 2 No 231 Series M 89 CISPR 11 1990 EN 55011 1991 Group 1 Class A IEC 801 2 1991 EN 50082 1 1992 8 kV AD IEC 801 3 1984 EN 50082 1 1992 3 V m IEC 801 4 1988 EN 50082 1 1992 1 kV eje CN supplementary Information Colorado Springs May 1 1992 7 John Strathman Quality Manager European Contact Your local Hewlett Packard Sales and Service Office or Hewlett Packard GmbH Department ZQ Standards Europe Herrenberger Stra e 130 D 7030 B blingen FAX 49 7031 144195 Lopyngnt newietu Packard Company 1982 All Rights Reserved Reproduction adaptation or transiation without prior written permission is prohibited except as allowed under the copyright laws Document Warranty The information contained in this document is subject to change without notice Hewlett Packard makes ne warranty of any kind with regard to this material includ
4. persistence of screens of screens 2 4 7 5 Realtime Acq Mode Seq off Display Menu persistence Key This key is used to select persistence during realtime acquisition e Single persistence is very fast overwrite As each new acquisition is displayed it overwrites the previous data The current display is always the most recent acquisition e Infinite persistence can be used for worst case characterizations of signal noise jitter drift etc In this mode the oscilloscope is used as a storage oscilloscope X of screens Key This key selects the number of screens to be displayed Refer to Repetitive Display Menu for more information Display Menu HP 54505B 54506B 54510B 54512B 7 8 Front Panel Reference off frame axes grid This unlabeled field selects one of four display backgrounds Refer to Key Repetitive Display Menu for more information connect dots Key This key is used to display waveforms with all data points connected Refer to Repetitive Display Menu for more information HP 545058 545068 54510B 54512B Display Menu Front Panel Reference 7 9 Healtime Acquisition Display Menu seq on DISPLAY sou rce of screens nect dots con exclude LN UN Display Menu 7 10 The display menu selections available when the TIMEBASE acquisition mode is set to realtime and sequential is set to on as shown in figure 7 6 Items in this menu are used to display pre
5. Envelope Displays the minimum and maximum voltages of all previously captured segments Dual voltage and time markers are available Each set of markers can be independently assigned to channels memories or functions Four independent functions are provided for waveform math The operators are X vs inverts magnify integrate differentiate and FFT The vertical channels or any of the waveform memories can be used as operands for waveform math Sensitivity and offset for these functions HP 54505B 54506B 54510B 54512B Front Panel Heference can be adjusted independently FFT characteristics are provided at the end of this Appendix Waveform Save The oscilloscope contains four non volatile waveform memories two volatile pixel memories 665 multiple failure memories Waveform memories store single valued waveforms such as an averaged waveform if an envelope waveform is stored to a waveform memory it will automatically be stored with the upper waveform in one waveform memory and the lower waveform in another Waveform memory pairs m1 m2 and m3 m4 also store the upper and lower limit masks used during compare testing These masks can be created and edited using sample signals or created manually Pixel memories store an entire screen of waveform data Thcy are useful for storing multiple overlapping waveforms and infinite persistence waveforms Automatic measurements may be performed on the four non voiatile waveform mem
6. e Humidity Up to 90 at 65 C 149 F e Altitude Up to 15 300 meters 50 000 feet If the oscilloscope is being shipped to a Hewlett Packard Service Center for service or repair attach a tag to the instrument identifying owner address of owner complete instrument model number and serial number and a description of required service HP 54505B 545068B 54510B 54512B Front Panel Reference If the original packaging material is no longer available identical packing material is available through local Hewlett Packard offices Mark the container FRAGILE to ensure careful handling In any correspondence refer to the instrument by the model and serial number Rear Panel The rear panel of the oscilloscope contains the power input voltage selector module external connectors intensity adjustment and calibrator protection switches as shown in figure 2 1 Power Requirements The oscilloscope requires a power source of either 115 or 230 Volts ac 25 to 15 single phase 48 to 66 Hz 200 Watts maximum power Voltage Selector and Power Input Fuse Module intensity A Cla ea Wg ee ES DC Calibrator Output HP iB Connector Probe Compensation Calibration Protect Switch AG Calibrator Output Figure 2 1 Oscilloscope Rear Panel HP 54505B 54506B 54510B 54512B instrument Setup Front Panel Reference 2 3 Selecting Line Voltage The fuse module is set at Hewlett Packard to the line voltage used in the country of destination
7. e Press AUTOSCALE e Set the mode to repetitive in the TIMEBASE MENU Press DISPLAY to set the best viewing conditions Set display mode to avg of avg to 8 of screens to 2 e Press WFORM MATH to define the function Select f7 and turn the display on Select chan 1 minus chan 2 HP 54505B 54510B or chan 3 HP 54506B 54512B and set the function sensitivity to 2 00 V div The function subtracts channel 2 or 3 from channel 1 The propagation between channels has allowed a 6 to 7 ns spike To better view the results e Press TIME BASE and set the horizontal display to 50 0 ns div see Figure 9 6 This display is best viewed when the oscilloscope is in repetitive acquisition mode Ao running resote tatk at A Hi x vs nagrify int diff fft chan 2 Fd 4 linea 1 2 3 4 geneitivity ae mos init hint a cavo PS 50 0 ns div eee Figure 9 6 Channel 1 Minus Channel 2 or 3 Waveform Math Menu HP 54505B 54506B 54510B 54512B 9 16 Front Panel Reference Waveform Math In this exercise the WAVEFORM MATH fft function is used to FFT Exercise demonstrate the effect of the three different windows and to measure peaks instrument Setup Set up an HP 8116A or signal generator capable of a 25 MHz 1 volt square wave as follows e MODE NORM e FRO 25 MHz DTY 50 eo AMP 1 00 Y e OFS 0 0 Y e Select a square wave signal Connect the signal to channel 1 of the oscilloscope with a one
8. values These entries will not be implemented until the execute all changes key is pressed Once the enter changes key is pressed a Status message is displayed at the top of the screen To abort the process without executing the changes press the more key Pressing this key immediately processes all changes that have been entered and displays the new included segments list at the lower left portion of the screen If average or envelope modes are selected the new composite waveform is generated using the updated segment list Press to toggle the other display menu choices Note The preferred method of making changes is to enter all desired changes then press the execute all changes key HP 545058 545068 54510B 54512B Front Panel Reference Sequential Single Shot Display Exercise This exercise 15 a continuation of the Sequential Single Shot Mode Exercise provided in Chapter 4 Timebase During the previous exercise an acquisition of 10 segments of 501 points each was performed and each segment was displayed During this exercise a waveform that is the average of segments 5 through 10 will be constructed are displayed Toggle the DISPLAY mode key until avg is selected Press the more exclude include key Toggle the exclude include key until exclude is highlighted Press the from seg key and use the knob to select 1 Press the to seg key and use the knob to select 4 Press the enter changes key then the execute a
9. 11 8 set date 12 14 set time 12 15 SHOW 3 6 single 3 3 slope 6 3 source 6 3 6 28 7 12 source memory 10 8 source state 6 33 source waveform save 10 3 source x1 y1 8 2 source x2 y2 8 3 Standard Select tv 6 28 standard user defined 11 4 start cal 12 8 12 11 start test 12 6 statistics 11 3 store waveform 10 3 store failure 10 5 test 11 7 11 10 thresholds measurements 11 4 Time Div 4 1 timebase delay 10 3 to 11 12 to seg 7 14 tolerance units 10 8 trigger on 6 23 TTL 5 5 Vertical Sensitivity 5 2 view failures 10 5 volatile 10 3 waveform pixel 10 1 when 6 9 6 15 vertical sensitivity 5 2 x1 position 8 2 x2 position 8 3 yi position 8 2 y2 position 8 3 when present 6 34 width 6 34 index 5 key continued window 9 9 year 12 14 key features 1 1 Key down power up 3 11 keyboard test 12 6 knob 3 8 3 9 L level adjust Key 6 3 6 33 level polarity Key 6 28 limit mask Key 10 11 line Key 6 28 Line Switch 3 10 lime voltage selecting 2 4 LOCAL Key 3 3 loop Test 12 6 Itrig acquisition test 12 6 main mask menu Key 10 9 10 11 Making Measurements A 1 mark point Key 10 10 markers 8 1 markers after autoscale 3 5 Marker operating characteristics B 12 markers x y 8 1 mask editor Key 10 7 mask editor menu 10 10 mask exercise 10 13 mask menu 10 2 10 6 Math function offset SHOW 3 6 Math function op
10. 8000 by pressing the key and entering the desired value using the keypad or knob Note that 501 points are acquired for a normal screen display of segments Key The of segments are specified by pressing the key and entering the desired value using the keypad or knob Note that the maximum number of available segments are displayed at the bottom of the key This number is dependent on the of points and active channels currently selected Entry is not allowed if all channels are off Memory Bar This exercise demonstrates the real time acquisition mode memory bar Exercise and the ability to display signals that occur before and after the trigger event of the displayed signal The memory bar shows the portion of the waveform record that is being displayed e Connect the oscilloscope rear panel AC CALIBRATOR signal to channel 1 with a coaxial cable e Disconnect any other signals that may be connected to other inputs e Press AUTOSCALE and then stop the acquisition with the RUN STOP key e Select delay in the TIMEBASE menu e Use the entry devices to vary the delay The memory bar at the top of the display moves with the delay reference changes The memory bar is shown in figures 4 3 4 4 and 4 5 Three different portions of the waveform can be viewed while the acquisition is running as shown in figures 4 3 4 4 and 4 5 Either left center or right can be selected with the delay reference key in the TIMEBASE menu HP 545
11. 9 Do not operate the instrument in the presence of flammable gasses or fumes Operation of any electrical instrument in such an environment constitutes a definite safety hazard 9 Do not iastall substitute parts or perform any unauthorized modification to the instrument Adjustments described in the manual are performed with power supplied to the instrument while protective covers are removed Energy available at many points may if contacted result in personal injury Any adjustment maintenance and repair of the opened instrument under voltage Should be avoided as much as possible and when inevitable should be carried out only by a skilled person who is aware of the hazard involved 9 Capacitors inside the instrument may still be charged even if the instrument has beca disconnected from its source of supply Warning Caution safety Symbols Instruction manual symbol The product will be marked with this symbol when it is necessary for the user to refer to the instruction manual in order to protect against damage to the product Indicates Hazardous Voltages Earth terminal sometimes used in manual to indicate circuit common connected to grounded chassis The WARNING sign denotes a hazard It calls attention to a procedure practice or the like which if not correctly performed or adhered to could result in personal injury Do hot proceed beyond a WARNING sign until the indicated conditions are fully un
12. Presetting FFT Parameters 0 0 0 cecececcceeus 9 13 Displaying Functions oooocoooomooccrccronc rro 9 14 Waveform Math Exercise 2 0 0 0 00 cece ccc nec ararauna 9 15 Ist F me AAA na bse tas send tee cede 9 15 Oscilloscope Setup es tiara 9 16 Waveform Math FFT Exercise 00 000 00 ccc eee ee acces 9 17 Instr rient Setup A 9 17 Oscilloscope Setup 0 0 c ccc cece ccc c ee eser 9 17 SE O es en ene Len es e DE 9 19 Making Peak Measurements 0 0 0 0 00 0c e eee ees 9 20 A bito eda dE EA aM AN oen dpa 9 22 Chapter 10 Waveform Save Menu Introduction to the Memories ls esses 10 1 waveform pixel multiple mask Key pd 10 2 Wavetorm MOni att EOE Md 10 2 nonvolatile Key 0 cece cence cece aes cceecceeecves 10 2 display Reyes oh O edd UD 10 2 Contents 6 HP 545058 54506B 54510B 54512B Front Panel Reference SOULCE BET a AA ae mame ance a wae as 10 3 A A rna i deoA Ce Edu cy peepee de ee eee pain 10 3 Prole Rey trat aie fabs ean dese aes 10 3 timebase delay Key oos odia 10 3 pixel MEDU al 10 3 VONIG Mc EET 10 3 ISDA C A eee detec ok Pas tg teste ain ok ae gcetes 10 4 Clear memory Key aiii 10 4 add to memory Key ads 10 4 MUlbple MENU inscripta prd uc pad ada 10 4 nonvolable Key dada dara 10 5 saved soure Key cid aaa t Ux P Ud era dA e d oi sers 10 5 failure Key ii Eos cete qeu ius id 10 5 vuewfadures Kev dua eo x Sapere eiui au b
13. automask Key Pressing this key causes an upper and lower limit mask to be generated for the selected source waveform at the tolerance specified Each mask is stored in the nonvolatile memory pair specified CAUTION Once a successful automask has been performed the current contents of the selected memory pair are overwritten Any data previously stored will be lost HP 54505B 54506B 54510B 54512B Waveform Save Menu Front Panel Reference 10 7 copy scaling Key source memory Key tolerance units Key noriz vert Key Waveform Save Menu 10 8 NOTE Prior to performing an automask verify that the data for the selected source is valid that the source selected is set to ON that the the destination memories are not protected and that the horizontal and vertical tolerance has been specified Information for selecting parameters is provided in the following paragraphs Failure to set these parameters can result in unsuccessful or incorrect mask generation Pressing this key copies the scaling information from the selected source to the specified nonvolatile memory pair Both the source and the memory pair are selected using the source memory key This key is used to select both the source of the waveform used during an automask function and the destination memory pair for the resulting upper and lower limit masks All channels functions and reference waveforms are available as source selections Memory pairs are either m1
14. features apply to all models unless otherwise specified See Appendix B for a complete listing of specifications and characteristics e Bandwidth dc to 125 MHz realtime HP 54505B 54506B dc to 250 MHz realtime HP 54510B 54512B de to 300 MHz repetitive all models e Maximum Sample Rate 500 MSa s HP 54505B 54506B 1 GSa s HP 54510B 54512B e Memory Depth per Channel 8 K e 8bits Vertical Resolution e Two channel HP 54505B 54510B or four channel HP 54506B 54512B Input and Display e External Trigger Input HP 54505B 54510B HP 54505B 54506B 54510B 54512B Introduction Front Panel Reference 1 1 Advanced Logic Triggering TV Trigger including user defined Glitch Trigger Pre and Posttrigger Viewing e 9 6 e Autoscale for Automatic Setup e Automatic Measurements User defined and Statistical Hardcopy Output Measurement Limit Test Waveform Comparison Test Waveform Math x vs invert magnify Waveform Calculus integrate differentiate and fast Fourier transform Automatic Mask Generation e Mask Editor 9 9 9 e Postacquisition Pan and Zoom e Nine Nonvolatile Setup Memories e Four Nonvolatile Waveform Memories e 665 Volatile Multiple Test Failure Memories e Two Volatile Pixel Memories e Full HP IB Programmability e Segmentable Memory over Front Panel and HP IB e Upto 670 500 point waveforms per second e Time date Stamp on Hard Copy e Time date Stamp on
15. impaired you must make the instrument inoperative and secure it against any unintended operation Do not operate the instrument in the presence of flammable gasses or fumes Operation of any electrical instrument in such CHERVULy y HARRUMES A Instruction manual symbol the product is marked with this symbol when it is necessary for you to refer to the instruction manual in order to protect against damage to the product Hazardous voltage symbol ie Earth terminal symbol Used to indicate a circuit common connected to grounded chassis WARNING The Warning sign denotes a hazard It calls attention to a procedure practice or the like which if not correctly Vect provided with a protective E furnishing performance or earth contact You must not 2 environment constitutes a ee or adhered to definite safety hazard could result in personal use of this material negate the protective action iniu Do not proceed Complete product warranty by using an extension cord e Do not install substitute beyond a Warning sign until information is given at the power cable without a parts or perform any vim e 4 h JT the indicated conditions are end of this manual protective conductor unauthorized modification to f fully understood and met grounding Grounding one the instrument conductor of a Capacitors inside the pos two conductor outlet is not instrument may retain a CAUTION sufficient protectio
16. o BUR 10 eo FRO 5 0 MHz e DTY 50 AMP 1 00 V e OFS 200 mV e Set generator for a pulse signal Connect the signal to channel 1 of the oscilloscope HP 54505B 54506B 54510B 54512B Trigger Menu Front Panel Reference 6 23 Oscilloscope Setup The oscilloscope autoscales and displays this signal however for this Trigger Menu 6 24 example make the listed triggering changes after autoscaling e Press AUTOSCALE fp running remote talk T S00 nV div offset 500 0 BY 1 000 1 1H9 dc 10 0000 us 0 00000 s 10 0000 us 2 90 us div repetitive Trigger Mode Egga 1 180 0 aV Figure 6 14 Ten Burst Pulse after AUTOSCALE Set up the oscilloscope as follows Press TIME BASE and select repetitive Press TRIG and sclect trig d display Select delay trigger mode Qualify en edge and the rising edge of channel 1 as the source Select a delay time of 2 5 ws to gain a stable trigger set trigger on to trigger on rising edge 1 of channel 1 56 6 6 O6 9 This trigger setup qualifies on the first rising edge of the burst delays through the remaining portion of the burst then triggers on the first edge of the next burst HP 54505B 54506B8 54510B 545128 Front Panel Reference e Press TIME BASE and set time division to 500 ns Ap running TINEDASE remote taik a 100 HSa s delay Aad UR E EM en reference quee ES RULES CST TE ne ge E EL EE HER d GE scr Mec T T T e
17. provide a 90 confidence the instrument is operating properly External test procedures in the service manual provide a 100 confidence Self calibration routines also selected through the front panel utility menu ensure that the instrument is operating with its greatest accuracy and require no external test equipment Low Cost of Ownership The oscilloscope includes a standard three year return to HP warranty To minimize the mean time to repair and calibration time the oscilloscope was designed with only one main assembly adjustment per channel In addition Hewlett Packard s board exchange program assures economical and timely repair of units reducing the cost of ownership Reliability Estimated mean time between failures MTBF for the HP oscilloscope ts 30 000 hours MTBF is computed using an instrument usage of 2 000 hours per year Solutions Hewlett Packard s System Engineering Organization can help you configure an HP IB system and provide software support for your application developing solutions to meet your measurement needs Contact your HP Sales and Service office for more information HP 54505B 54506B 54510B 54512B General information Front Panel Reference B 17 General Characteristics Environmental Temperature Conditions Operating 0 C to 55 C 32 F to 131 F Non operating 40 C to 70 C 40 F to 158 F Humidity Operating up to 95 relative humidity non condensing at 40 C
18. 1 RECALL CLEAR is the same as a key down power up except the previous menu selections are retained HP 54505B8 54506B 54510B 54512B Front Panel Overview Front Panel Reference 3 11 Front Panel Overview 3 12 Table 3 1 Reset Default Conditions Timebase Menu Time Div 100 us div delay 0 00000 s reference cntr repetitive realtime realtime sequential off Channel Menu Channel 1 on Channel 2 off Channel 3 HP 54506B and off Channel 4 HP 54512B only off Volts Div 500mV offset 0 00000 V coupling dc impedance 1 M ohm probe attenuation 1 000 1 Trigger Menu Trigger auto Mode edge source Channel 1 slope positive noise reject off holdoff 40 ns Display Menu Mode realtime persistence minimum of screens off frame axes grid connect dots HP 54505B 54506B 54510B 54512B Front Panel Heference HP 54505B 54506B 54510B 54512B Front Panel Reference Table 3 1 Reset Default Conditions continued AYAV yix Marker Menu markers off Waveform Math Menu fi off f2 off f3 off f4 off chan mem chan 1 operator chan mem chan 1 function sensitivity 1 00 V div function offset 0 0 V Waveform Save Menu waveform pixel multiple mas k waveform nonvolatile ml display off source chan 1 protect off Define Meas Menu measure def limit compare m
19. 104 F Non operating up to 90 relative humidity at 65 C 149 F Altitude Operating up to 4 600 meters 15 000 ft Non operating up to 15 300 meters 50 000 ft Vibration Operating Random vibration 5 500 Hz 10 minutes per axis 0 3 grms Non operating Random vibration 5 500 Hz 10 minutes per axis 2 41 rms Resonant search 5 to 500 Hz swept sine 1 Octave minute sweep rate 0 75g 5 minute resonant dwell at 4 resonances per axis General information HP 54505B 54506B 545108 54512B B 18 Front Panel Reference Product Regulations Safety TEC 348 UL 1244 CSA C22 2 No 231 Series M 89 EMC This product meets the requirements of the European Communities EC EMC Directive 89 336 EEC Emissions EN55011 CISPR 11 ISM Group 1 Class A equipment SABS RAA Act No 24 1990 Immunity EN50082 1 Code 1 Notes IEC 801 2 ESD 8kV AD 1 TEC 801 3 Rad 3 V m 1 IEC 801 4 EFT 1 kV 1 1 Performance Codes 1 PASS Normal operation no effect 2 PASS Temporary degradation self recoverable 3 PASS Temporary degradation operator intervention reqd 4 FAIL Not recoverable component damage Sound Pressure Level Less than 60 dBA HP 54505BH 54506B 54510B 54512B General information Front Panel Reference B 19 Power Requirements Weight Dimensions 439 4 17 39 s 362 5 C14 3 7 a e 355 6 14 905 S4501 amp 13 General Information B 20 Volt
20. 54512B Front Panel Reference HP 54505B 54500B 54510B 54512B Programming Reference HP 54505B 54506B 54510B 54512B Service Manual Feeling Comfortable with Digitizing Oscilloscopes Oscilloscope Probes and Accessories e o 6 6 9 9 Y HP 54505B 54506B 54510B 54512B instrument Setup Front Panel Heference 2 1 Aveilable Accessories Operating Environment Storage and Shipping instrument Setup 2 2 The following optional accesories are available for use with the Digitizing Oscilloscopes Carrying Case HP Part Number 1540 1066 Rack Mount Kit HP Part Number 5061 6175 HP 1180A Testmobile HP 1133A TV Video Sync Pod HP 1141A Differential Probe HP 1137A High Voltage Probe HP 10024A Integrated Circuit 16 pin Test Clip HP 10211A Integrated Circuit 24 pin Test Clip PC Board Horizontal Mini Probe Socket HP Part Number 1250 1737 PC Board Vertical Mini Probe Socket HP Part Number 1250 1918 e 9 006 9 o6 9o 6 Oo 6 The oscilloscope is operated in a normal lab or bench environment without any additional considerations Note the non condensing humidity limitation in the list of characteristics supplied in this manual Condensation in the instrument cabinet can cause poor operation or malfunction Protection should be provided against temperature extremes which cause condensation The oscilloscope may be stored or shipped in environments with the following limitations e Temperature 40 C to 75 C 40 F to 158 F
21. Bandwidth Limits ac coupled lower 3 dB frequency 10 Hz LF reject lower 3 dB frequency 400 Hz Bandwidth Limit upper 3 dB frequency 30 MHz Number of Channels 2 HP 54505B 54510B or 4 HP 54506B 54512B simultaneous acquisition Vertical Sensitivity Range 1 mV div to 5 V div Vertical Gain Accuracy dc 1 25 of full scale Vertical Resolution 8 bits over 8 divisions 0 4 10 bits via HP IB with averaging 0 1 HP 54505B8 54506B 54510B8 54512B Front Panel Reference Maximum Sample Rate 500 MSa s HP 54505B 54506B 1 GSa s HP 54510B 54512B Waveform Record Length 8001 points real time 501 points repetitive Input C 7 pF nominal Input Coupling ac dc 1 mV 50 mV div 2V gt 50 mV 250 mV div 10 V gt 250 mV 1 25 V div 50 V gt 1 25 V 5 V div 250 Y Dynamic Range 1 5 x full scale from center of screen Channel to channel Isolation with channels at equal sensitivity dc to 50 MHz 40 dB 50 to 250 MHz 30 dB Notes t Gain accuracy decreases 0 08 of full scale per C from firmware calibration temperature This characteristic is valid for a temperature range 10 C from firmware calibration temperature Characteristic applies to both modes repetitive and real time single acquisition 2 Expansion is used below 7 mV div range so vertical resolution and accuracies are correspondingly reduced Below 7 mV div fuli scale is defined as 56 mV 3 Available over HP IB wa
22. Check the setting of the fuse module to verify it is in the correct position for the voltage to be used If the setting needs to be changed use the following procedure CAUTION BEFORE APPLYING POWER TO THE INSTRUMENT BE SURE THE FUSE MODULE IS SET TO THE CORRECT LINE VOLTAGE POSITION Severe damage will occur if the line voltage is not properly set Change the fuse module position by pulling the fuse module out and reinserting it with the appropriate arrows aligned e Carefully pry at the top center of the module as shown in figure 2 2 until it can be grasped and pulled out Figure 2 2 Selecting Line Voltage instrument Setup HP 54505B 54506B 54510B 54512B 2 4 Front Panel Reference Verifying the Fuse If it is necessary to check or change fuses remove the fuse module and look at each fuse for its amperage and voltage ratings V 230V 3 0 A FUSE 3 0 A FUSE Figure 2 3 Checking for the Correct Fuse WARNING SHOCK HAZARD BEFORE CONNECTING THIS INSTRUMENT TO MAINS POWER OR LIVE MEASURING CIRCUITS the protective earth terminal of the instrument must be connected to the protective conductor of the Mains power cord The Mains plug must be inserted in a socket outlet provided with a protective earth contact The protective action must not be negated by the use of an extension cord power cable without a protective conductor grounding Grounding one conductor of a two conductor outlet does not provide an instrume
23. Front Panel Reference of points Key 4 7 9 8 of screens Key 7 4 7 8 7 12 of segments Key 4 7 width A 4 width A 5 A A D acquisition test 12 6 abort Key 12 8 12 11 accessories 2 2 Accessories Available B 2 Accessories Supplied B 1 acquisition relationship to timebase and sample rate 4 2 acquisition status 3 2 acquisition Test 12 6 acquisition realtime 4 4 7 8 7 10 acquisition repetitive 4 4 7 2 acquisitions 4 2 add to memory Key 10 4 addressed 12 2 addressed menu 12 2 after fail Key 11 9 11 14 Aur Flow Requirements 2 7 Algorithms A 1 Aliasing 9 12 allowance Key 11 12 HP 54505B 54506B 54510B 54512B Front Panel Reference alternate function key 3 9 Altitude 2 2 Amplitude Measurements 9 10 atrig acquisition test 12 6 attenuation submenu 12 8 auto trigger 3 2 6 1 automask Key 10 7 Automask Menu 10 7 Automatic measurements 1 2 A 1 Automatic Top Base A 2 AUTOSCALE Key 3 5 Available Accessories 2 2 B 2 available options B 2 awaiting trigger 3 2 6 1 axes 7 6 blue key 3 9 C cable HP IB connection 2 7 cal select Key 12 10 Calibration Procedure 12 16 calibrator protection 2 3 center freq Key 9 7 chan mem Key 9 4 Channel coupling SHOW 3 6 CHANNEL Key 5 1 12 9 12 11 channel impedance Key 12 8 index 1 Channel Menu 5 1 channel offset 5 2 Channel offset SHOW 3 6 Channel scaling SHOW 3 6 channel select 5 2 chan
24. HP 54505B 54506B 54510B 54512B 6 20 Front Panel Reference qualify on edge Select the edge qualifier and the next two function keys defines the parameters The next key is an unlabelled field that selects the channel to be the source The second key below the edge selection is the slope selection qualify on pattern When the pattern trigger option is selected the next function key defines the qualifier pattern Defining a pattern is the same as in the pattern trigger mode e Highlight the bit to be changed by pressing the function key e Change the bit by rotating the knob After all bits have been selected the active field is changed to the condition field This field sets conditions as in the Pattern Trigger mode when entered when exited when present gt time when present lt time range gt time2 and lt timel 9 8 0008 These settings activate the next field as appropriate so the specific time parameters can be set qualify on state If the state trigger option is selected the next two function keys define the state conditions As in the state trigger mode select the channel to define the state clock This selection is reflected in the pattern with an arrow and the slope is depicted with the arrowhead pointing up or down Use the function key to move the highlighted bit to change the pattern When the pattern is set the is not present setting can be changed by moving the highlight to the is not pres
25. Key 0 ccc cece eee ees 12 16 interpolation Key oir rio aaa 12 16 cur menu K6y A 12 16 Calibration Procedure 0 0 ccc cece ce ccc cece eee eese 12 16 Algorithms Measurement Setup esses ccna cee ceveccercccnseesavevses A 1 Making Measurements 00000 0 0 eve cece san A 1 Standard Measurements ooo oooooccccoccononooronoroos A 2 User defined Measurements 00 0 000 ccc ccc eae roo A 2 Automati TOP Base oca ti ps edie A 2 A A 3 Algorithm Definitions 00 00000 0c cece ccc e cece ececeees A 3 ij MEL A 3 Rojo Moe A 4 SCIO iaceat esa bo eara actu LED e etie eL A 5 xri TCR A 5 o A tridion a N E a A 5 DU EE taa keke etek A 5 Roe A tues onan See eee ewaa eae A nir PLE A 5 VIE Lost idi LN NR Spp eu de d aneiun ae uir ERE IE A 5 Y DP PPP A 5 MD sss uestes meu O FE CENE A 5 A A ETA AA hh eae E ede anise A 6 MOOSE opi osa eae DER eet ROSS ae A 6 j Mr A 6 bi ales ceca ts aay O aan a doe ac oe anes A 6 pilo rr CEPR A 6 e out cided A cane beeen eben T E A 6 Dillerenbate iii rr aw hed A 6 Appendix B Contents 10 General Information Histrument Descriptions uoo ree EINE REY dd s B 1 ACCESSOHES SUPDIICE iia B 1 Accessories Available 2 2 2 0 00000 cece cece e cent eee eevenes B 2 OPHANS AVADE ra ar B 2 HP 54505B 545068 545108 545128 Front Panel Reference Performa ce Specifications Lilian par a caus B 3 WERICAL aa E B 3 HOT
26. Menu Front Panel Heference 6 13 To satisfy this bit condition both channels must be high The oscilloscope does not trigger until channel 2 or 3 goes high while channel 1 is high e running PATTERN TRIGGER Feasts Lokk t trig d BAS edge BEP stote delay tv giltcn 50 000 ng 0 00000 g 50 000 ns 10 0 nefdiv repetitiva notdort Figure 6 8 HXHX when entered Pattern e Change the trigger condition to when exited While channel 2 or 3 is still high and when channel 1 goes low the bit pattern is no longer true and the oscilloscope triggers Ap running PATTERN TRIGGER reacts taik c 50 000 ns 6 00000 s 50 000 ns 10 0 ns div repetiilive holdoftf line SEEDEN Figure 6 9 HXHX when exited Pattern Trigger Menu HP 54505B 54506B 54510B 54512B 6 14 Front Panel Reference State Trigger The state trigger mode is similar to the pattern trigger mode except that Node one channel is selected as a clock edge and the other trigger sources define a pattern When the pattern becomes true the oscilloscope triggers on the next clock edge if the pattern meets setup and hold criteria edge patt BEU STATE TRIGGER delay tv g f i when is s not present present hol doff RRE ERRORES DENIS Due an tet te NS B d un Figure 6 10 State Trigger Menu clock Key Select any channel to be used as the state clock Select the channel by pressing the function key until
27. Trigger Mode 0 00 ccc cece cece ecenceceucens 6 20 gually O8 Key cisco terete eles e pa VADE EE aA oae Case e b 6 20 qualify on edge diosa y he ds bean how RA MATE EE EY 6 21 quabfy Of A ad tienes au eet E Ten d Eg 6 21 quality Gn stale asso eoo eR UERUPREPewtbRRXGUEE IM dares 6 21 HP 54505B 54506B 54510B 54512B Contents 3 Front Panel Reference delay Key A Urine OPE 6 22 trigger on Key E E E 6 23 Delay Trigger Exercise 000 0 cece ccc cc eese 6 23 Instrument Setup 0 cece cece lle eect eceeeucs 6 23 Oscilloscope Setup 000 ccc cece elles 6 24 TV Trigger MOTE oa O FA Standard Select Key 2 2 0 000 0c cece ccc cece cecceucee 6 28 Source Select Key sici n 6 28 level polarity Key 2 00 ccc cence cece rro ooo 6 28 Dc rr 6 28 n E O O RUP en CORRER 6 28 boot PT 6 29 CM CEBRECE EXERCISE opas debatdev a A ad M e ESO a ee tegis a 6 29 Instrument Setup 0 0 0 0 cc eee cece eee ET m 6 29 Oscilloscope SeDip ii vus et acu eek e eer bud ved T ETE 6 29 Glitch Trigger ni er iaa oblea 6 33 SOUFCO alato OV aa dais 6 33 SAA A I Ba s LEE 6 33 when present Key 00 0 cece e esses 6 34 WIG A hain Vedi quedes peret 6 34 A Mo MT 6 34 Glitch Trigger Exercise nbl DRE Epp 6 34 Instrument Setup 2 20 2 kee cece cece ace esse 6 34 Oscilloscope Setup 00 0 ccc ccc cece naana naL 6 34 Chapter 7 Display Menu Introduction to the Display 0000
28. V1 30775 iota Gray For interconmnecting 8120 1625 System Cobinel Use 86 244 tystom components and 250v per spherats United Slates and Caneda only 8127 2104 Strotght SEVIO 1 73 200 Mint Groy Swi trer tond 8120 2298 1958 24507 797200 Wini Gray Type 12 90 OPT 912 8120 2956 Siro qht eDHCK 107 79 200 Mint Groy Denmat k Nds 8120 2957 90 79 200 Mini Gray i 220v OPT 917 Bi12D 421 Streight SABGTEA 79 200 Joge Gray Republic of South Africa Me 8120 4600 ag 79 200 ladio 250v X OPT 318 8120 4783 Stroight Miti 90 230 inpan 8120 4754 so 90 230 100v Nav MOMS An TOOG TS Part number ehown for plug is industry identifier fer D ug only Number amp ghawn Tos cable is HP part number fot complete cobie including plug These corde ara included in the CSA cerl ficotion approval of the equimement Egrtn Ground Lal ine Heat sutral Figure 2 4 Available Power Cords instrument Setup 2 6 HP 54505B 54506B 54510B8 54512B Front Panel Reference intensity Control Once the oscilloscope has been turned on the display intensity can be adjusted if necessary The intensity is adjusted with the Display Intensity control on the rear panel Figure 2 5 Intensity Control Air Fiow The oscilloscope must have unrestricted air flow for the fan and Requirements ventilation openings in the rear panel The oscilloscope may be stacked under over or between other instruments provided the the other instruments are adequately cooled HP 5
29. as in figure 4 14 Ay stopped TIMEBASE renote listen e i rere reference sequent nt ERES on 900 060 us 1 00000 As 1 10000 es 20 6 us div resltibe 4 14 Panning to the Left When the delay is decreased the waveform pans to the right as in figure 4 15 The data before the trigger point is being displayed Ags stopped TLINEBASE renote listen repetitive TENEN sequeniisi HA M 3 E EH E on 152 000 us 2 0006 us AR 0000 us 20 0 us div realt ne 4 15 Panning to the Right Timebase HP 54505B 54506B 54510B 54512B 4 18 Front Panel Reference The memory bar moves to the left or right as the acquisition is panned Panning and zooming can be used concurrently to examine the acquisition e Zoom out of the acquisition by increasing the time base e Select delay and use the knob to center the acquisition area of interest e Zoom back in on the waveform of interest HP 54505B 545068 54510B 545128 Timebase Front Panel Reference 4 19 introduction to The channel menu is a two level menu that controls the vertical operation Channeis of the oscilloscope This chapter describes the use of the input channels including vertical sensitivity offset coupling impedance attenuation and preset levels CHANNEL CHANNEL offset BW iim LF rej preset probe Bore Figure 5 1 Channel Menu HP 545058 54506B 54510B154512B Channel Menu Front Panel Ref
30. be calibrated the CALIBRATION switch on the rear panel must be set to UNPROTECTED The procedure for calibration is e Set the rear panel CALIBRATION switch to UNPROTECTED e Select 0 in the cal select field and calibrate the vertical factors for all the channels separately or all at once This routine calibrates the A D vertical gain offset hysteresis and trigger with the rear panel de calibator signal e Select 1 in the cal select field and calibrate the delay and the repetitive factors for each channel This procedure uses the rear panel ac calibrator signal e Select 2 in the cal select field and calibrate the time null from channel 1to2 and 1 to3 1 to 4 for the HP 54506B 54512B This procedure uses the rear panel ac calibrator signal e Select 3 in the cal select field and calibrate the logic trigger for channel 1 This procedure uses the rear panel ac calibrator signal When the software calibrations are complete reset the CALIBRATION switch on the rear panel to PROTECTED HP 54505B 54506B 54510B 54512B Utility Menu Front Panel Reference 12 17 One of the primary features of the oscilloscope is the ability to make automatic measurements on displayed waveforms This chapter provides details on how automatic measurements are calculated and some tips on how to improve results Setup Measurements typically should be made at the fastest possible sweep speed for the most accurate measurement results The entire po
31. e OFS 0V e Set generator for a pulse train Connect the signal to channel 1 of the oscilloscope Connect the signal to channel 1 of the oscilloscope e Press RECALL then CLEAR keys e Press TIME BASE and select 5 00 ns div and repetitive mode HP 54505B 54508B 54510B 54512B Front Panel Reference e Press CHAN and select 40 mv div and 50 Q DC e Press TRIG select trig d display then glitch mode e Set source state to chan 1 HIGH e Set when present to lt Select a width and set to 20 ms Because the trigger is set to capture positive pulses that are less than 20 ns wide the oscilloscope displays the 8 ns wide pulse with the falling edge at center screen fp running remote telk GLITCH TRIGGER auto edge pate state ts j a y t v m INK qas 0 00000 25 000 ns 5 00 ns div repetitive 25 000 ns holdoft timo ESI Figure 6 24 Glitch Trigger Exercise e Select width and set to 10 ns and verify the pulse remains displayed on the screen 8 ns still less than 10 ns e Select width and set to 5 ns and verify the pulse is no longer displayed on the screen 8 ns is not less than 5 ns and that running awaiting trigger is displayed HP 545058 545068 54510B 54512B Trigger Menu Front Panel Reference 6 35 e Set when present to gt and verify the pulse is again displayed on the screen 8 ns is greater than 5 ns e Select width and set to 10 ms and verify the pulse is
32. ime 40 00 Figure 6 22 Trigger on Field 2 Line I The trigger point is on the second sync pulse of the vertical interval This is the correct trigger point because fields 1 and 2 are interlaced Trigger Menu HP 54505B 54506B 54510B 54512B 6 32 Front Panel Reference Glitch Trigger 8 center a NR QUREMIBAEEI Se hotdoff time PUROS source state Key level Key HP 54505B 54506B 5451 08 54512B Front Panel Reference The glitch mode is used to configure the oscilloscope to recognize a glitch on a single channel down to 5 nsec distinguish that glitch from glitches of other widths and generate a trigger event When the input satisfies the set trigger conditions the oscilloscope triggers and displays the waveform present on all active channels GLITCH TRIGGER source state chan 1 tur LOW adjust center lovel when present width holdoff v Figure 6 23 Glitch Trigger Menu The source state key selects the source and pattern state used for triggering The source options are channels 1 or 2 or external trigger HP 54505B 54510B or channels 1 through 4 HP 54506B 54512B The state for thc source selected can be specified as either high or low where high is higher than the current trigger level and low is lower than the current trigger level Only one source state can be selected at one time The current selection is highlighted in inverse video The level key sets the
33. is incremented in 20 ns time frames IV Trigger Video signals are unique and as such have unique requirements for Exercise proper triggering This exercise demonstrates how to display and work with video signals on the oscilloscope instrument Setup Use a standard NTSC signal generator with clamped video output for this exercise Turn color bars on Oscilloscope Setup Connect the NTSC video signal to channel 1 of the oscilloscope e Press AUTOSCALE e Select the tv trigger mode e Set 60 Hz 525 lines and channel 1 as the source Determine the polarity of the sync pulse e Select the trigger level and rotate the knob until a stable display is attained When a sync pulse is visible determine the polarity select polarity press ihe function key and set the sync pulse in accordance with the actual pulse HP 54505B 54506B 545108 54512B Trigger Menu Front Panel Reference 6 29 e Set the trigger level at approximately the midpoint of the sync pulse This sets the trigger level just below the middle of the sync pulse and tells the oscilloscope to trigger on the leading edge e Set trig d aute to trig d This eliminates the possibility of a premature trigger event occurring e Select field 1 and line 1 e Press TIME BASE and set time division to 100 u s div e Press DISPLAY and set persistence to 600 0 ms to accommodate video signals The oscilloscope is triggering on the first equalizing pulse of field 1 the first pulse i
34. left data at the beginning of the record is used When center is selected data in the middle of the record is used When right 1s selected data at the end of the record is used The memory bar above the graticule indicates what portion of the acquisition record is used for the FFT time record The memory bar shows the FFT record whenever the FFT menu with the of points key 1s selected An FFT with an input record of N points is transformed into a frequency record of N points Because half of the points are above the Nyquist frequency and provide redundant information they are not used so the frequency points are half that of the input The FFTs are computed on records that are powers of two If the number of FFT points is 512 256 additional frequency points are created by interpolating between the actual points to give 512 frequency points The number of FFT points and the resultant HP 545058 54506B 545108 545128 Front Panel Reference frequency points is listed below The display time is with connect the dots off INPUT POINTS FREQUENCY POINTS 512 repetitive 512 512 real time 512 1024 512 2048 1024 4096 2048 8192 4096 sensitivity Key The vertical sensitivity of the function is set with this key The setting is for ease of viewing and making measurements on the function Offset Key The offset of the function is set with this key window Key Three windows can be selected with the window key rectangular hanning and fl
35. m2 or m3 m4 where the upper limit mask is stored in mi or m3 and the lower limit mask is stored in m2 or m4 Press key to highlight parameter and use the knob to select desired choice This key is used to select the vertical and horizontal tolerance units used during an automask function to generate the upper and lower limit masks Tolerance can be specified as divisions or in volts and time seconds Pressing key toggles between units and also changes the horiz vert key display accordingly Once desired units are selected use the horiz vert Key to enter the tolerance This key is used to select and enter the horizontal and vertical tolerance parameters The horizontal parameter defines the maximum signal excursion right and left of the selected source The vertical parameter defines the maximum signal excursion above and below the selected source HP 54505B 54506B 545108 54512B Front Panel Reference Maximum signal excursion is equal in both directions from the selected source except when the source is channel the sampling mode is repetitive and the display mode is envelope In this case upper and lower limit masks are generated as follows e If vertical and horizontal tolerances are set to zero then the lower limit mask will be the minimum envelope waveform and the upper limit mask will be the maximum envelope waveform e If vertical and horizontal tolerances are set to any value other than zero then the lower limit mask will be
36. no longer displayed on the screen 8 ns is not greater than 10 ns and that running awaiting trigger is displayed Trigger Menu HP 54505B 54506B 54510B 54512B 6 36 Front Panei Reference introduction to The DISPLAY menu controls most of the features that dictate how the the Di spl ay acquired data is displayed These features include ways to manipulate data for clarity to eliminate noise viewing selected memory segments viewing best case worst case situations or the displayed background This chapter describes the DISPLAY menu the submenus how to control all the features and how to display the most meaningful waveform for measurements There are three display menus depending on which acquisition mode the oscilloscope 1s set to in the TIMEBASE menu e Repetitive acquisition display menu e Realtime acquisition sequential memorv off display menu e Realtime acquisition sequential memory on display menu HP 545058 54506B 54510B 54512B Display Menu Front Panel Reference 7 1 Acquisition Display Menu DISPLAY Display Mode Key Display Menu 7 2 The display menu selections available when the TIMEBASE acquisition mode is set to repetitive as shown in figure 7 1 DISPLAY axes grid A ia Ld connect ita connect dots Figure 7 1 Repetitive Acquisition Mode Display Menu The DISPLAY mode key selects one of three display modes e normal e averaged e envelope HP 54505B 54506B 54510B 54512B Front P
37. of first falling edge on max waveform The standard delay measurement occurs when in the standard mode not user defined and is not a jitter measurement standard delay mid threshold of the first edge of second parameter minus mid threshold of the first edge of the first parameter Note Negative delay is possible User defined delay second channel edge minus first channel edge width The width algorithm has standard and user defined considerations if first edge is rising then width mid threshold crossing of first falling edge mid threshold crossing of first rising edge else width mid threshold crossing of second falling edge mid threshold crossing of first rising edge Algorithms HP 54505B 54506B8 54510B8 54512B A 4 Front Panel Reference User defined is the same as Standard definition except user defined threshold width The width algorithm has standard and user defined considerations if first edge is rising then Width second rising edge first falling edge else width first rising edge first falling edge Period if first edge is rising then period second rising edge first rising edge Frequency frequency 1 period Duty Cycle duty cycle width period 100 Note width ts always calculated using mid threshold Rise time rise time time at upper threshold time at lower threshold Falitime falitime time at lower threshold time at upper threshold Vma
38. of four math functions The operands for the functions can be any channel or one of four waveform memories A function is generated by mathematically manipulating one or two operands with one of the following nine operations 8 e e plus minus times X versus magnify e invert integrate differentiate fft WAVEFORM MATH HP 54505B 54506B 54510B 54512B Front Panel Reference Hh f2 Bt off jchan 1 2 34 mem 1 2 34 ETE Tes magni mw ine it m chan 1 2 34 mem 1 2 34 sensitivity SEE FIGURE 9 2 Eos offset Figure 9 1 Waveform Math Menu Waveform Math Menu 8 1 REFER TO FIGURE 9 1 peak seach seach teve fft horiz magnify controis o 3 freq span center freq of points of points e sensitivity sensitivity offset window window more more Figure 9 2 FFT Waveform Math Menu Waveform Math Menu HP 54505B 54506B 54510B 54512B 9 2 Front Panel Reference The vertical display and offset can be adjusted to place the function for best viewing When the function has been calculated it can be used in the following manners displayed evaluated with the measurement features stored in memory transferred over the HP IB e e e Functions are transferred over the HP IB by first storing the function to a memory and then transferring the memory over the HP IB Defining a The Waveform Math menu selects and presets any of various Function o
39. or another function generator capable of producing the same 1 MHz 1 volt square wave signal Set up the HP 8116A Pulse Function Generator e Mode NORM e FRO 1 00 MHz e DTY 50 AMP 100 V e OFS 200 mV e Set the generator for a square wave signal Connect the signal to a BNC tee on channel 1 using a 1 meter coaxial cable Connect another 1 meter cable from the other side of the BNC tee and terminate in 50 Q to channel 2 HP 54505B 54510B or channel 3 HP 54506B 54512B Oscilloscope Setup The extra cable length between channels provides a time delay between the signals displayed on the oscilloscope The propagation of a 1 meter coaxial cable is approximately 6 to 7 ns This time delay is used to demonstrate the oscilloscope s triggering capability e Press AUTOSCALE Set up the oscilloscope as follows e Time base 10 00 ns div delay 0 00 s reference cntr acquisition mode repetitive e Channel 1 Vertical sensitivity 400 mV div offset 200 00 mV de coupling input impedence 1M Q HP 54505B 54506B 54510B 54512B Trigger Menu Froni Panel Reference 6 11 e Channel 2 HP 54505B 54510B or Channel 3 HP 54506B 54512B Vertical sensitivity 400 mV div of set 200 00 mV de coupling input impedence 50 Q e Display minimum persistence 2 screens axes e Trigger Channel 1 level 200 mV Channel 2 HP 54505B 54510B or 3 HP 54506B 54512B level 200 mV Set the trigger mode to pattern S
40. oscilloscope to acquire data in the repetitive acquisition mode see Feeling Comfortable With Digitizing Oscilloscopes In this mode the oscilloscope samples and displays data continuously this mode is useful when viewing a continuous waveform In the repetitive mode e The oscilloscope displays data collected from multiple acquisitions from either or both channel inputs e Data from defineable multiple acquisitions can be averaged to generate a display when the avg key in the Display Menu is activated when in the repetitive avg mode e Data from each acquisition can be displayed for a definable period of time persistence in the Display Menu in the repetitive normal mode e Waveform records are established at 501 data points on all time division setings When in realtime mode the oscilloscope displays data collected during successive single shot acquisitions from any of the input channels The oscilloscope can make a single shot capture simultaneously on all channels This allows simultaneous nonrecurring or very low repetition rate events to be captured at the same time HP 54505B 54506B 545108 545128 Front Panel Reference Note When realtime is selected the sequential key is displayed in the off position See sequential single shot later in this chapter for more information in realtime mode when the oscilloscope is stopped some or all of the 8K waveform buffer memories each channel has its own 8K buffer can be dis
41. s 2 s div 320s 25 Sa s 5 s div 800 s 10 Sa s HP 54505B 54506B 54510B 54512B Front Panel Reference delay Key selecting delay assigns delay as the active function When delay is set to 0 the trigger event occurs at the delay reference point Positive delay indicates time after trigger and negative delay indicates time before trigger Therefore a delay setting of 50 ns indicates that the trigger event occurs 50 ns after the delay reference point In the real time mode and with the acquisiton stopped delay controls the pan feature see the pan and zoom exercise in this chapter reference trigger event delay reference Key The reference key changes the delay reference point to one of three reference points e left e cntr center e right If delay is set to O and reference to center the reference point consists of pretrigger data to the left and posttrigger data to the right NOTE The time from trigger changes with the delay setting and is displayed at the bottom of the waveform area at the left center and right of the display HP 54505B 54506B 54510B 54512B 2 Timebase Front Panel Reference 4 3 repetitive realtime Key repetitive mode realtime mode Timebase 4 4 The repetitive realtime key selects one of the two acquisition modes used by the oscilloscope e repetitive acquisition e realtime acquisition See Chapter 7 Display Menu for more on acquisition modes The repetitive mode sets the
42. s external markings which are described under Safety Symbols e BEFORE SWITCHING ON THE INSTRUMENT the protective earth terminal of the instrument must be connected to the protective conductor of the mains powercord The mains plug shall only be inserted in a socket outlet provided with a protective earth contact The protective action must not be negated by the use of an extension cord power cable without a protective conductor grounding Grounding one conductor of a two conductor outlet is not sufficient protection e Servicing instructions are for use by service trained personnel To avoid dangerous electric shock do not perform any servicing unless qualified to do so e If this instrument is to be energized via an auto transformer for voltage reduction make sure thc common terminal is connected to the earth terminal of the power source e Any interruption of the protective grounding conductor inside or outside the instrument or disconnecting the protective earth terminal will cause a potential shock hazard that couid result in personal injury Whenever it is likely that the protection has been impaired the instrument must be made inoperative and be secured against any uniatended operation Only fuses with the required rated current voltage and specified type normal blow time delay etc should be used Do not use repaired fuses or short circuited fuseholders To do so could cause a shock or fire hazard
43. signal are displayed as in figure 4 8 NOTE The HP 54505B 54506B will display 5 data points fe slopped raapt liston nl Pomar RAM AA A refe t EA a CE recititiaas 5 000 ns 5 00000 s 5 000 ns 1 00 n amp div rapetitiva 4 6 Ten point Waveform in Repetitive Mode In the realtime acquisition mode the data is interpolated at faster time base settings for a more useful display To observe the difference between non interpolated and interpolated data Select realtime in the TIMEBASE menu Press the CLEAR DISPLAY key Press the SINGLE key The waveform is displayed as in figure 4 9 HP 54505B 54506B 54510B 54512B Front Panel Reference ho siopped f amp mot Liatan repa titive PRES sequentia 3 000 as 6 00060 5 5 000 ns 1 00 ns diy resitias 4 9 Ten point Waveform in Realtime Mode NOTE The HP 54505B 54506B is five data points In the real time acquisition mode the oscilloscope uses a digital oversampling filter to provide a more continuous waveform display It automatically operates when there are less than 501 points on the display Seq uential This exercise shows the sequential single shot capabilities of the Single Shot oscilloscope This mode is used to capture and display ten segments at EP 501 acquisition points of a signal connected to channel 1 xercise e Connect the oscilloscope rear panel AC CALIBRATOR signal to channel 1 with a coaxial cable e Disconne
44. test runs on front panel measurements efter fal ROS continue test Key This key toggles the test routine on or off When the test is turned on the oscilloscope starts running in the test mode on the most current measurements that have been selected HP 545058 54506B 545108 545128B Define Measure Menu Front Panel Reference 11 7 set Key This key selects the measurement There are sixteen measurements available these are same ones as are available on the numeric keypad e Press the function key to highlight the field and rotate the knob to select the desired measurement Note This key does not select the measurements on which the limit test operates that selection is made from the keypad with the blue Shift key fail if gt Key This field sets the upper failure threshold The range on this field is dependent upon the units of the desired measurement or if Key This key sets the lower threshold of the failure parameters on fail save Key This key saves the data associated with the failure from selected channel function or screen to memories or to a hardcopy device The source and destination of the save are selected by pressing the key until the desired parameter is highlighted then turning the knob Source choices include any channel function or the screen Destination choices include off not saved waveform memories multiple memories pixel memories and hardcopy Destination choices available depend on
45. that are much higher than the frequency of the signal Presetting FFT The FFT vertical parameters magnify and center frequency are preset Parameters whenever the operand or operator is changed They are preset over the bus whenever the FFT command is sent HP 54505B 54506B 545108 54512B Waveform Math Menu Front Panel Reference 9 13 Displaying The HP 54505B HP 54506B HP 54510B and HP 54512B Functions oscilloscopes have three screen choices available to accommodate a 2 channel display HP 54505B 54506B or 4 channel display HP 54510B 54512B as well as four functions e In the single screen mode with a function on the mathematical results and the operands are displayed using the full display area Chan Func 1 2 3 or 4 Viewing Area DS EE TT rTYTrUTTUTTTT T TET TD 9 3 Single Screen with Function On e In the dual screen mode on the HP 54505B 54510B channel function 1 is displayed in the top half of the screen and channel function 2 1s displayed in the bottom half On the HP 54506B 54512B channels functions 1 and 2 are displayed in the top half of the screen and channels functions 3 and 4 are displayed in the bottom half i EOS SS icu c REIS dq ae OL Chan 1 Viewing Area 54505B 54510B Chan 1 amp 2 Viewing Area 54506B 54512B Func 1 amp 2 Viewing Area al 3 F Chan 2 Viewing Area 54505B 54510B Chan 3 amp 4 Viewing Area 54506B 545 128 Func 3 amp 4 Viewing Area all F
46. the 1 gigasample second rate HP 54510B 54512B Single shot in realtime mode is used to compare interpolated with non interpolated data The 500MSa s or 1 GSa s digitizing rate of the oscilloscope allows capture of very fast nonrecurring events such as a microprocessor start up sequence Error causing glitches that disrupt system performance can be captured for analysis Single shot in Single shot is used to build a waveform while displaying the 500MSa s or Repetitive Mode 1 GSa s sample and digitize rate HP 54505B 54506B 545108 54512B Timebase Front Panel Reference 4 9 NOTE The IGSa s HP 54510B 54512B rate is shown and described in the following example The SOOMSa s rate HP 54505B 54506B will look identical but requires more acquisitions to build the same waveform e Connect the oscilloscope rear panel AC CALIBRATOR signal to channel 1 with a coaxial cable e Disconnect any other signals that may be connected to other inputs e Press AUTOSCALE e Inthe TIMEBASE menu change time base to 10 ns e Set the acquisition mode to repetitive e Press the STOP RUN key to stop acquisition e Press CLEAR DISPLAY key e Press the SINGLE and CLEAR DISPLAY keys alternately to display and erase single shot data Ap sto pred regmois ligsten 56 000 ns 0009 s 50 000 ne 190 0 ns div repelitiva 4 6 Single shot Waveform Built up in Repetitive Mode Timebase HP 54505B 54506B 54510B 54512B 4 10 Front Panel R
47. the autoscale function press RECALL 0 RECALL Key The RECALL key has three primary functions e Pressing the RECALL key and then selecting 1 through 9 causes a recall of a previously saved setup configuration Pressing RECALL 0 will recall the configuration the oscilloscope was set at before an autoscale recall or setting up ECL TTL preset The current configuration is automatically saved in memory 0 before any of these actions HP 545058 54506B 54510B 545128 Front Panel Overview Front Pane Reference 3 5 e Pressing RECALL CLEAR resets the instrument and returns the oscilloscope to default power up settings shown in table 3 1 SAVE Key The SAVE key immediately stores the oscilloscope setup configuration in nonvolatile memory Press SAVE and then select a save register 1 through 9 An advisory is displayed above the waveform display area indicating the setup configuration has been saved Note that regester 0 is not available as the oscilloscope uses this register to store the current configuration before executing an autoscale recall or ECL TTL preset SHOW Key The SHOW key accesses the following information Channel scaling Channel offset Channel coupling Channel impedance Probe attenuation Trigger mode Trigger source Trigger level Math function operation Math function scaling Math function offset Memories 9 69 6 90 0 0 688 oO Pressing the SHOW key toggles between the currently selected menu and the SHOW s
48. the desired channel is highlighted The clock selection is reflected in the next field with an arrow pointing either up for a positive slope or down for a negative slope when Key The when key depicts the desired pattern The displayed pattern shows the arrow at the selected clock channel The other trigger sources define the logic pattern that must be satisfied to generate a trigger event using the H L X convention described in the pattern trigger mode section of this chapter HP 54505B 54506B 54510B 54512B Trigger Menu Front Panel Reference 6 15 present Key holdoff Key To change the pattern e Press the function key until the bit to be changed is highlighted e Rotate the knob until the desired setting is highlighted e Select the arrow to change the trigger slope if necessary and turn the knob until the desired settings appear A trigger event is generated on the selected edge when the pattern is true and is present is selected or a trigger occurs when the pattern is false and not present is selected The holdoff key assigns the entry devices to control holdoff Holdoff disables the trigger circuit for a selectable time period after the trigger event Holdoff is selected in 20 ns time increments from 40 ns to 320 ms or for events count of states 2 to 16 000 000 Time and event are toggled with the knob State Trigger exercise instrument Setup Trigger Menu 6 16 This exercise demonstrates how an input patter
49. the minimum envelope waveform with the specified tolerance applied and the upper limit mask will be the maximum envelope waveform with the specified tolerance applied Tolerance can be entered in either divisions or volts and seconds depending on the current selection of the tolerance units Key Pressing the key toggles between parameters and the highlighted parameter can be changed using the knob or keypad When units are divisions e Horizontal entries of from 0 000 to 1 000 are allowed e Vertical entries of from 0 000 to 8 000 are allowed When units are volts time e Horizontal entries are limited to the current time base setting Entries of from 0 00000 to 200 0000 seconds are allowed however if the entered value exceeds the current time base value time division it is automatically adjusted to the maximum value allowed e Vertical entries are limited to the currently selected source s vertical setting Entries of from 0 00000 to 40 0000 volts are allowed however if entered value exceeds eight times the vertical volts division value for the source selected it is automatically adjusted to the maximum value allowed main mask menu Key Press key to return to the Main Mask Menu HP 54505B 54506B 54510B 54512B Waveform Save Menu Front Panel Reference 10 9 Mask Editor The Mask Editor submenu contains the selections used to edit previously Men generated and stored masks using the Automask Menu Using the mask edit
50. trigger level used by the source state key The range on this function is 12 divisions The current level is also displayed as a dotted line The center can also be selected with centered Trigger Menu 6 33 when present width Holdoff Key The when present key sets the condition that must be satisfied to generate a trigger event If when present gt is selected a trigger is generated when the trigger pattern is true longer than a specified width If when present lt is selected a trigger is generated when the trigger pattern is true less than a specified width The current selection is highlighted in inverse video The width key sets the width of the pulse to generate the trigger on Width ranges from 5 ns to 160 ms the holdoff key assigns the entry devices to control holdoff Holdoff disables the trigger circuit for a selectable time period after the trigger event Holdoff is selected in 20 ns time increments from 40 ns to 320 ms Glitch Trigger Exercise instrument Setup Oscilloscope Setup Trigger Menu 6 34 This exercise demostrates how to use the glitch trigger to capture a glitch that is 8 ns wide and also how to distinguish it from glitches that are less than 5 ns wide or greater than 10 ns wide Set up an HP 8116A or comparable signal generator for a 1 MHz 200 mV 8 ns wide pulse train Set up the HP 8116A Pulse Function Generator e Mode NORM e FRQ 1 0 MHz e WID 8ns e AMP 200 mV
51. when measuring for excessive overshoot or ringing By defining the measurements pass fail criteria of any choice can be tested Test from the front panel or set the oscilloscope in the limit test over HP IB and allow the oscilloscope to report without supervision Note If time measurements are performed and the signal does not exceed 8 A to D levels or 8 vertical pixel levels the message not found will be displayed in the measurement factors area Measurements define more parameters the horizontal test conditions for three specific front panel keypad measurements e Delay DEFINE MEAS e width s im owidth When any of the three measurements are selected the measurement is made on the selected edge count slope and transition point The oscilloscope starts counting edges from the left edge of the screen not at the reference point The selected edge must be displayed If the edge is not displayed the message not found is displayed in the measurement results area below the screen 54502W58 HP 54505B8 54506B 54510B 54512B Define Measure Menu Front Panel Reference 11 5 Define Measure Menu 11 6 Measurement delay not to be confused with time base delay is useful when measuring source to source delays or measuring time separation on the same source or a different source see chapter 4 Timebase Menu The front panel delay measurement can be redefined by edge slope edge count from 1 to 4000 and the p
52. 0 0 00 cc ccc less cceccecces 7 1 Repetitive Acquisition Display Menu 00 cccceueeee 7 2 Display Mode Key 00 cccccecececcecceccccecurcs 7 2 BOOM EE 7 3 AE ON 7 4 Arr rre 7 4 PF Ol Screens rd ida 7 4 off frame axes grid Key 00000 00 c ccc ccc ccc aaun 7 6 connect dots Key 0 0 0 ccc cece cece ccc ccc ccccceccresas 7 6 Realtime Acquisition Display Menu sen DIT vessel dat baia a 7 8 persistence Key coco desexeeri ice 7 8 MOF screens Key es 7 8 Contents 4 HP 54505B 54506B 545108 54512B Front Pane Reference off frame axes grid Key llli 7 9 CONNCCE COIs Key iiec iio 7 9 Realtime Acquisition Display Menu seq on LL 7 10 Display Mode Key ia as 7 11 norm ee ee lore sc 7 11 We iut ce uU d se ds 7 12 ED oor eee eR RA AAA oc n xa t iR EAE 7 12 SDUICE NOV costes S ico ten buie iat S olet ede pp Ma iE 7 12 of screens Key PONE TO EE E EAE ETOT 7 12 off frame axes grid Key oooooooocroronarnararornanr so 7 12 connect COIS Key caia iaa 7 13 more exclude include Key ooooooooomocconromosmmn 7 13 CACAO KEY n 7 13 LOSE rm 7 14 O P 7 14 enter Chanpes Keys osos as 7 14 execute all changes Key os oso eb YA Wo dI uud std 7 14 s PCM p RC OI EAEAN E 7 14 Sequential Single Shot Display Exercise ooocoooomomooom 7 15 Chapter 8 Marker Menu Introduction to the Markers 0 0000 cece eee cece eee eee 8 1 Ol Of Key devo died AR
53. 0 1454 e One 23 meter 7 5 feet power cord See section 2 for available power cords e One Front Panel Reference and Programming Reference Set e One Service Manual HP 545058 54506B 54510B 54512B General information Front Panel Reference B 1 Accessories Available The following accessories are available for use with the oscilloscope HP 10430A 10 1 1MQ probe 1m HP 10437A 1 1 50 Q probe 2m HP 10438A 1 1 probe 1m HP 10439A 1 1 probe 2m HP 10441A 10 1 1 MQ probe 2m HP 10002A 50 1 1 MQ 1000 V peak probe HP 10020A Resistive Divider Probe Kit HP 1141A HP 1142A Differential Probe system HP 1143A Probe Power for Active Probe HP 54701 2 5 GHz 0 6 pF Active Probe HP 1137A 1000 1 High voltage divider probe HP 1133A TV Video Sync Pod HP 10211A 24 pin IC Clip HP 10224A 16 pin IC Clip HP 1250 1454 BNC to Miniature Probe Adapter HP 1250 1737 PC Board Mini Probe Socket horiz HP 1250 1918 PC Board Mini Probe Socket vert HP 10240B BNC Biocking Capacitor HP 11094B 75Q Feedthrough Termination HP 5061 6175 Rack Mount Kit HP 1494 0015 Rack Mount Slide Kit HP 1540 1066 Soft Carrying Case HP 9211 2645 Transit Case HP 5061 6183 Front Panel Cover HP 1180A Tilt tray Testmobile HP 92199B Power Strip 9 9 9 9 5 O9 O6 O O O OG O G6 O G6 O 6 O O 9 OG 6 OG GO GO o Options Available General information B 2 Tbe following options are available for the oscilloscope Option 908 Rack Mount Kit HP 5061 6
54. 05B 54506B 54510B 54512B Timebase Front Panel Reference 4 7 Timebase 4 8 Ap stopped TIMEBASE reaete listen po EBS Bball ie gee 5 00000 as 0 00000 3 4 00000 es t 00 ag div ree tine 4 3 Memory Bar at Center of Acquisition When the acquisition is stopped the display can be placed at any portion of the waveform record by changing the delay value in the TIMEBASE menu The delay value moves the 8K acquisition display relative to the trigger point Ae stopped TIMEBASE remoie listen ied repetitive inc AEN ies sequential er on 70 0000 ms 7 000 as B0 0000 as t OG n5 div Fesilige 4 4 Memory Bar at Right of Acquisition HP 545058 545068 545108 545128 rront Panel Reference As the delay value is changed the memory bar moves to the right or to the left depending on a positive or negative delay value Negative delay values show pretrigger events and positive delay values show posttrigger events in the acquisition display fp stopped dalsy 0 00000 53 reference ter m dela repetitivo LEONIS sequentini Pudet ld on 80 GOGO as S 0600 ms 70 0000 as 1 00 as diyv res tize 4 5 Memory Bar at Left of Acquisition Si ngle shot This exercise shows the single shot capabilities of the oscilloscope Exercise Single shot in repetitive display mode is used to build a waveform while displaying the 500 megasample second rate HP 54505B 54506B or
55. 06B 545108 54512B Front Panel Reference The horizontal magnify key allows expansion of the frequency record when on is selected The magnify off mode is useful for viewing the entire FFT spectrum The magnify on mode is useful for looking at two frequencies that are close together and for making maximum accuracy measurements When on is selected the center freq key is available in the menu for centering on the desired frequency The number of points displayed on the screen for FFT functions is always 500 When magnify is off a compression algorithm is used to compress all of the fft points into 500 points The algorithm accurately displays peaks and most noise However low points in the noise are occasionally missed When magnify is on the actual fft points are displayed 500 points at a time The frequency span controls the span of the FFT record Changing the span of the FFT record with a channel source causes the timebase to change The span is the sample frequency divided by two except for timebase rates lt 100 nsec div HP 54505B 54506B or 50 nsec div HP 54510B 54512B in the repetitive mode Since the sample frequency for memories is fixed once a record is stored the span is also fixed and cannot be changed The front panel keypad does not have keys for entering MHz or kHz The frequency span is entered from the keypad by entering the number in MHz or kHz followed by 6 or 3 zeroes and then pressing the enter key s V key T
56. 1 and 0 corresponding to on and off respectively j Q gg DG IDOE aji 9000 00000 31400000 i DOQU HOO 0000 i KR lool e gt le 4 pu Mi Figure 3 6 Line Switch Front Panel Overview 3 10 The display section contains the screen and function keys The vertical column on the right side of the screen is the function display The functions that are displayed at any one time correspond to a softkey Numeric key fields displayed in full bright video are changed by either numeric keys on the keypad or the knob When these functions are not active they are displayed in half bright when displayed in full bright they are active Non numeric fields displayed in half bright video toggle with the corresponding function key These fields are displayed in half bright but are active for the function keys HP 54505B 54506B 54510B 54512B Front Panel Reference FUNCTION KEYS DISPLAYED FUNCTIONS JULLODO Figure 3 7 Function Keys instrument The oscilloscope has two methods of instrument reset Reset e lt A key down power up is a hard reset of the oscilloscope It is done by pressing and holding any front panel key while cycling power If input signals are not present the oscilloscope will power up displaying a baseline in the SHOW screen and set to all default settings see table 3 1 e RECALL CLEAR performs a soft reset of the oscilloscope All default conditions are set see table 3
57. 1 points of waveform information no raw data in each memory Measurements cannot be performed uniess the data is first transferred into one of the nonvolatile memories HP 54505B8 54508B 54510B8 54512B Front Panel Reference nonvolatile Key This key selects which of the four nonvolatile memories to use when transferring multiple memory failure data The selections are nonvolatile memories m1 m2 m3 and m4 When a memory is turned on using the waveform submenu the small circle below the label is highlighted When the memory is protected see protect key the small circle has an x through it Refer to the Waveform Submenu earlier in this Chapter for more information saved source Key The saved source key selects the multiple memory source to be viewed or transferred Press key to highlight the field and use the knob to select the desired source Source alternatives are any channel or function that has failure data saved as selected when configuring the limit or compare test using the define measurement menu See define measurement in Chapter 11 for more information Displays None when no failure data is available max saved 0 The maximum number of data records saved is also displayed on the bottom portion of the key display failure Key This key selects a specific multiple memory to view or transfer Press the key to highlight the failure then use the knob to select the desired data record Also displays the time and date the sele
58. 175 Option 910 Additional Manual set Option 090 Deletion of probes Option 105 Scopelink Software HP 54653A e eo e HP 54505B 54506B 54510B 54512B Front Panel Reference Performance specifications Vertical Horizontal The following are performance specifications for the Digitizing Oscilloscope Bandwidth 3dB dc coupled dc to 300 MHz repetitive mode dc to 125 MHz realtime mode HP 54505B 54506B dc to 250 MHz realtime mode HP 54510B 54512B Rise Times 12 ns repetitive 2 8 ns realtime HP 54505B 54506B 1 4 ns realtime HP 54510B 54512B input R selectable 1 MQ 1 or 50 Q 1 Maximum Input Voltage 1 MQ 100 V de peak ac lt 10 kHz 1 mV to 50 mV div 1 MQ 250 V de peak ac lt 10 kHz gt 50 mV to 5 V div 50 C2 5 Vims Offset Accuracy x 146 of channel offset 2 of full scale Voltage Measurement Accuracy dc A Dual Cursor 1 25 of full scale 0 032 x V div Single Cursor 1 25 of full scale offset accuracy 0 016 x V div Delta t Accuracy Repetitive 28 averages 0 005 x delta t 2E 6 x delay setting 100 ps Real Time single acquisition 0 005 x delta t 2E 6 x delay setting 300 ps HP 54505B 54506B 0 005 x delta t 2E 6 x delay setting 150 ps HP 54510B 54512B Trigger Trigger Sensitivity internal dc to 100 MHz 0 5 division interna 100 MHz to 300 MHz 1 0 division External dc to 300 MHz 100 mVp p into 50 Q Gli
59. 2 15 time null submenu 12 9 timebase delay Key 10 3 Time Div Key 4 1 timebase acquisition test 12 6 Timebase Menu 4 1 timebase setting relationship to sample rate and acquisition 4 2 to Key 11 12 to seg Key 7 14 tolerance units Key 10 8 Trig d auto Key 6 1 trigger delay 6 1 6 20 edge 6 1 6 2 glitch 6 33 6 34 pattern 6 1 6 8 state 6 1 6 15 tv 6 1 6 27 trigger characteristics B 6 trigger edge mode after autoscale 3 5 trigger level 6 1 trigger level after autoscale 3 5 trigger level for ECL 5 5 trigger level for TTL 5 5 Trigger level SHOW 3 6 Trigger Menu 6 2 Trigger Modes operating charateristics B 8 trigger on Key 6 23 trigger point in memory bar 4 5 Trigger source SHOW 3 6 trigger specifications B 3 TTL Key 5 5 TV Trigger operating characteristics B 10 tv Trigger Exercise 6 29 tv Trigger Mode 6 27 HP 54505B 54506B 54510B 54512B Front Panel Reference U Unpacking the instrument 2 1 User definable Measurement Thresholds B 14 user defined width A 4 Utility Menu 12 1 V V div for ECL 5 5 V div for TTL 5 5 Vamp A 6 Vavg A 6 Vbase A 6 vertical characteristics B 4 vertical operating characteristics B 6 vertical position 5 2 Vertical Resolution 1 1 vertical sensitivity after autoscale 3 5 Vertical Sensitivity Key 5 2 vertical specifications B 3 vertical offset after autoscale 3 5 view failures Key 10 5 Vmarker 8 1 Vmax A 5 V
60. 3 dB point at approximately 30 MHz for both triggering and signal display Can be selected for each vertical input individually but is not available for the external trigger inputs on the HP 54505B 54510B LF Reject Provides high pass filter with a 3 dB point at approximately 400 Hz for triggering and vertical signal Can be selected for each vertical input individually but is not available for the external trigger inputs on the HP 54505B 54510B ac Coupling Provides high pass filter with a 3 dB point at approximately 7 Hz for both triggering and signal display Can be selected for each vertical input individually but is not available for the external trigger inputs on the HP 54505B 54510B ECL TTL Presets Vertical deflection factor coupling offset and trigger level can be preset independently on any vertical input channels for ECL and TTL levels but is not available for the external trigger inputs on the HP 54505B 54510B Effective Resolution The maximum sample rate and the number of bits in an oscilloscope s digitizer are too often used for comparing oscilloscopes These specifications however do not describe performance under dynamic signal conditions Effective Resolution is a figure of merit that describes the oscilloscope s performance under dynamic conditions and is measured using the sinewave curve fit test This method considers Quantization error Non linearities including preamp and A D System noise Frequen
61. 45058 545068 54510B 545128 instrument Setup Front Panel Reference 2 7 Connecting External Equipment instrument Setup 2 8 The oscilloscope is equipped with an HP IB connector on the rear panel This allows a direct connection to an HP IB compatible printer plotter or external controller Connect an HP IB cable to the oscilloscope and any HP IB compatible device Tighten the HP IB cable with the captive screws of the cable to avoid disconnecting the cable Q ed ue jc AA AAA Ela eg EE IE TU 3 Figure 2 6 Connecting External Equipment The oscilloscope must be properly addressed to communicate with the connected device The oscilloscope s HP IB address is set in the HP IB submenu See HP IB Menu in Chapter 12 for detailed information HP 54505B 54506B 54510B8 54512B Froni Panel Reference introduction to This chapter describes the functional sections of the oscilloscope front the Front Panel panel The explanation of each area also contains their interaction with each other and provide a basis for applications and usages The front panel is separated into nine functional areas Function Keys Line Switch System Control Setup i Display Menus Entry Devices inputs Probe Terminals Figure 3 1 Oscilloscope Front Panel HP 54505B 54506B 54510B 54512B Front Panel Overview Front Panei Reference 3 1 system Control The SYSTEM CONTROL keys are located along the top of the oscilloscope to th
62. 4510B or 4 bit HP 54506B 54512B pattern for the oscilloscope to recognize and generate a trigger event When the inputs satisfy the trigger pattern and conditions the oscilloscope triggers and displays the desired portion of the waveform The pattern mode is very useful for glitch detection when greater than 20 ns because the oscilloscope triggers on a glitch and displays the resulting waveform See Glitch Trigger Mode later in this section for more information on glitch detection when occurrence is less than 20 ns PATT TRIGGER H X X X when entered 20 000 ns hoidoff gt 20 000 ns Figure 6 5 Pattern Trigger Menu HP 54505B 54506B8 54510B 54512B Froni Panel Reference pattern Key This is an unlabelled field The display depicts the bit pattern The active field is displayed in full bright and is changed with the knob The function key changes the bit selection of three levels e H high e L low e X dont care The criteria for high is higher than the current trigger level and low is lower than the current trigger level The bit pattern represents all the oscilloscope inputs The left most bit corresponds to channel 1 and the right most bit corresponds to the external trigger channel on the HP 54505B 54510B or channel 4 on the HP 54506B 54512B For example on the HP 54505B 54510B if the pattern is LXH the voltage on channel 1 must be lower than the trigger level set for channel 1 channel 2 is
63. 5 ECL Key 5 5 ECL TTL presets 3 5 Edge Definition A 3 Edge Trigger Exercise 6 4 edge Trigger Mode 6 2 enter changes Key 7 14 ENTRY device section 3 8 Environmental Conditions B 18 exclude include Key 7 13 execute all changes Key 7 14 Exercise Delay Trigger 6 23 Edge Trigger 6 4 HP 545058 54506B 54510B 54512B Front Panel Reference Glitch Trigger 6 34 Holdoff 6 4 Mask 10 13 Pattern Trigger 6 10 Sequential Single shot 4 13 7 15 State Trigger 6 16 tv Trigger 6 29 Waveform Save 10 4 10 12 Exercise Waveform Math 9 15 9 17 exit menu Key 12 3 12 6 12 11 12 14 12 16 External Equipment Connecting 2 7 F fail if 11 8 failure Key 10 5 falltime A 5 falltime measurements A 2 features 1 1 FFT Keys 9 6 measurement 9 10 operating characteristics B 21 parameters 9 13 windows 9 19 held Key 6 28 FINE key 3 8 FINE key effect on timebase 4 1 firmware revision 12 1 form feed Key 12 3 frame 7 6 freq span Key 9 7 frequency A 5 Frequency Measurements 9 11 from seg Key 7 14 Front Panel Overview 3 1 front panel knob 3 9 function display 3 10 Function Key 9 3 HP 545058 545068 545108 54512B Front Panel Reference functional sections of front panei 3 1 fuse module 2 4 G Gain cal 12 11 General Characteristics B 17 General Information B 1 Glitch Trigger exercise 6 34 mode 6 33 operating characteristics B 11 grid 7 6 H hard reset 3 11 Hard
64. 505B 54506B 54510B 54512B Froni Panei Reference e 4 the display area is divided into two screens Channel 1 HP 54505B 54510B or channels 1 and 2 HP 54506B 54512B are displayed in the top screen and channel 2 HP 54505B 54510B or channels 3 and 4 HP 54506B 54512B are displayed in the bottom screen See figure 7 2 Channel 1 Viewing Area HP54505B 54510B Channel 1 amp 2 HP54506B 54512B Memory 1 amp 2 amp Function 1 amp 2 Viewing Area all Channel 2 Viewing Area HP54505B 54510B Channel 3 amp 4 HP54506B 54512B Memory 3 amp 4 amp Function 3 amp 3 Viewing Area all Figure 7 2 Dual Screen Display e 4 the display area is divided into four screens Each channel is displayed in the corresponding portion of the screen starting with channel 1 at the top See figure 7 3 Channel l Memory 1 amp Function 1 Viewing Area Channel 2 Memory 2 amp Function 2 Viewing Area Channel3 Viewing Area 54505B 54512B Memory 3 amp Function 3 all Channel 4 Viewing Area 54505B 54512B Memory 4 amp Function 4 all Figure 7 3 Four Screen Display HP 54505B 54506B 54510B 54512B Display Menu Front Panel Reference 7 5 off frame axes grid This unlabeled field selects one of four display backgrounds Key e off turns the background graticule off The displayed waveform and waveform information is not turned off e frame displays the outside border with a measurement s
65. Hewlett Packard service travel area Outside Hewlett Packard service travel areas warranty service will be performed at the Buyer s facility only upon Hewlett Packard s prior agreement and the Buyer shall pay Hewlett Packard s round trip travel expenses For products returned to Hewlett Packard for warranty service the Buyer shall prepay shipping charges to Hewlett Packard and Hewlett Packard shall pay shipping charges to return the product to the Buyer However the Buyer shall pay all shipping charges duties and taxes for products returned to Hewlett Packard from another country Hewlett Packard warrants that its software and firmware designated by Hewlett Packard for use with an instrument will execute its programming instructions when properly installed on that instrument Hewlett Packard does not warrant that the operation of the instrument software or firmware will be uninterrupted or error free The foregoing warranty shall not apply to defects resulting from improper or inadequate maintenance by the Buyer Buyer supplied software or interfacing unauthorized modification or misuse operation outside of the environmental specifications for the product or improper site preparation or maintenance NO OTHER WARRANTY IS EXPRESSED OR IMPLIED HEWLETT PACKARD SPECIFICALLY DISCLAIMS THE IMPLIED WARRANTIES OR MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE exclusive Remedies Assistance Certification Safety THE REMEDIES P
66. IZOD AL sita dt a ss B 3 A PT OE B 3 Performance Characteristics cse B 4 VeFBcdl s inin ERR Wa EU haad vai nr dca dod B 4 Horizontal iv proe CR RU ew Rs Rea eres AHORRO RAUS RA B 6 EE dp DEPT PP RERUM B 6 Operating Characteristics 2e des cree a eu Deoa Robots B 6 bug T Ru A B B 6 LHorizotigl A gp ain A REOR DA ew art Gd A OR E B 8 Trigger Modes P B 8 Delayed E teet iii a bela acd B 9 AAA M RETE B 10 O da ovest io Cos A B 11 Bor EM A B 11 Display Mod s AS B 11 NTEGER ure E ua ae eiae pe esu ue decidua dae sac B 12 Waveform Math PI ded NEED B 12 Wavolorm S38 sooo aida B 13 User definable Measurement Thresholds B 14 Setup Als ia ena B 15 PIAL OCODY DP B 15 Full HP IB Programmability ooooooooonomomommoo o B 15 Product Support veo rara B 17 Genera Characterist6S iia dai daa B 18 Environmental Conditions oooocooncrnonnnrnnono B 18 Product Regulations TROMPE REUS B 19 Power Requirements L MAL Ld c ore B 20 WIRD Cp B 20 Dimension osse ta dans ie but B 20 HP 54505B 54508B 54510B 54512B l Contents 11 Front Panel Reference Contents 12 Fast Fourier Transforms eee roo nan B 21 Fenk Seateli iia ta wus ERnDE B 21 Channels or Memories ooooooooonrocmccroncc roo B 21 Variable Sensitivity and Offset ooooooooooooooooooooo B 21 Selectable Time Record Length
67. MET 3 6 SO TREE 3 6 MEDUS ocho E cae eke ce 3 7 HP 545058 545068 545108 54512B Contents 1 Front Panel Reference Entry DEVICES dia 3 8 Numeric Keypad oooooccocccccccccnror corn ron roo 3 8 A A ee 3 9 PINE c PCT 3 9 Probe Terminals 35i br aei EAE P UMP ZELUS 3 9 pi ME TP 3 9 Bonis qe Tv 3 10 lg cr eno er 3 10 Instrument Reset aaa 3 11 Chapter 4 Timebase Menu Introduction to the Timebase ooooocconrocccccocroor ooo 4 1 AMONG DIV ROY EA 4 1 O A nia E Cr ru TEE 4 3 ICIPTence KEY ceang hie he E LED Ope d LUE Es 4 3 repetitive FOAMING O AAA do abe ww A 4 4 TED MOGE seo dis et acu rs esi 4 4 realtime mode ni and 4 4 Sequential Single Shot 2 2 0 0 0 cc ccc c eee ec eee 4 6 Sequential ROY ceteris toda 4 6 HOF DOUG MEET 4 7 Y OL segments Key ieee a vise ES oa RR Ra ted EAE THERE 4 7 Memory Bar Exercise idas 4 7 single Shot Exercis ds 4 9 Single Shot in Repetitive Mode Luuluueuess 4 9 Single Shot in Real Time Mode LL uusus 4 12 Sequential Single Shot Exercise oooooooococormccncrcnn 4 13 Fan and ZOOM is eda We kh ars 4 15 Pan and Zoom Exercise 20 00 ccc cuccccncaccevccuees 4 15 Vc nl MM TE P 4 15 cr n A IT 4 17 Chapter 5 Contents 2 Channe Menu Introduction to Channels LuLuuuuuuuus RE 5 1 CHANNEL KEV adria d c E EORR awn eons 5 2 Vertical Sensitivity Key ooooonooncoocnoromm
68. Noise Reject Trigger Provides improved triggering on noisy signals by increasing trigger hysteresis internal trigger only HP 545058 54506B 545108 545128 Front Panel Reference Glitch Trigger Used to capture qualified glitches as narrow as 5 ns and up to 160 ms Display Data Display Resolution 451 points horizontally by 256 points vertically Number of Screens 1 2 or 4 screens can be selected This can provide overlapping channels or memories for comparison or separate displays on a split viewing area Display Modes Graticules The user may choose full grid axes frame or no graticule Connect the Dots Provides a continuous display connecting the sample points with straight lines Connect the dots is operative for modes in which a single valued waveform can be connected including average envelope single and minimum persistence modes Connect the dots is not available in the variable or infinte persistence mode Time Base In Repetitive Mode Averaging The number of averages can be specified in powers of 2 up to 2 048 On each acquisition 1 n times the new data is added to n 1 n of the previous value at each time coordinate Averaging operates continuously except for the HP IB digitize command for which averaging terminates at the specified number of averages Envelope Provides a display of the running maximum and minimum voltage levels at each horizontal time position Minimum Persistence One waveform data valu
69. ROVIDED HEREIN ARE THE BUYER S SOLE AND EXCLUSIVE REMEDIES HEWLETT PACKARD SHALL NOT BE LIABLE FOR ANY DIRECT INDIRECT SPECIAL INCIDENTAL OR CONSEQUENTIAL DAMAGES WHETHER BASED ON CONTRACT TORT OR ANY OTHER LEGAL THEORY Product maintenance agreements and other customer assistance agreements are available for Hewlett Packard products For any assistance contact your nearest Hewlett Packard Sales and Service Office Hewlett Packard Company certifies that this product met its published specifications at the time of shipment from the factory Hewlett Packard further certifies that its calibration measurements are traceable to the National Institute of Standards and Technology to the extent allowed by the Bureau s calibration facility and to the calibration facilities of other International Standards Organization members This product has been designed and tested according to International Safety Requirements To ensure safe operation and to keep the product safe the information cautions and warnings in this manual must be heeded General Operation General Warnings and Cautlons Safety Considerations This is a Safety Class I instrument provided with terminal for protective earthing BEFORE APPLYING POWER verify that the power transformer primary is matched to the available line voltage the correct fuse is installed and Safety Precautions are taken see the following warnings in addition note the instrument
70. T T idi bU t H M j E i hn T ir 1 A PERA RETA RAN ee UR 0 00000 Hz 250 000 MHZ 500 000 MHz SERERE 12 10 0 dB div offset 20 00 dBs eapi tude ecc Figure 9 11 Flattop Window for Amplitude Measurements The oscilloscope makes automatic peak measurements from the WAVEFORM MATH fft menu Set both search fields to the first peak The markers are then set on the first peak as in figure 9 12 Ap running HAVEFORM MATH paak search Berker f marker a pke EE pko BE 0 00000 Hz 250 000 MH2 500 000 MHz f2 10 0 dB d ir offset 20 00 dz yzf 2 11 5625 dfe R21T2 24 0000nHz ft y1 12 11 5625 dOs x1tf2 24 0000Hz more controls delte y 0 00000 da Galis x 0 06000 Hz f deit amp x f ine 9 12 Automatic FFT Peak Measurement HP 545058 54506B 54510B 545128 Front Panel Reference Turn fft magnify on for maximum measurement accuracy Any two peaks from 1 to 99 and above the specified search level can be selected and measured as in figure 9 13 In this example peaks 3 and 5 are marked Ap running reaole talk ve o je il e e aaa ama aa mi x V magnily inv int ditt EE peak search ii perker sorker he i uA Pro QUE oro E i RH t n RI iF X i i search leva MESS AC i 0 00000 Hz 250 000 MHz 306 000 MHz 2 310 0 dB div offset 20 00 dBa y2if2 i 8750 dba R21 2 122 000nH2 ft ylli2 625 0008dBn x1112 73 00001842 Bora coni
71. Test Failure Multiple Memories introduction HP 54505B 54506B 54510B 54512B 1 2 Front Panel Reference introduction This chapter contains information for unpacking applying power and connecting optional accessories to the oscilloscope Inspection power requirements and instructions for running the oscilloscope s self test for performance verification are also included in this chapter For safe and troubie free operation follow the instructions and advisories in this chapter Read the Safety Summary included in this manual initial inspection Contents of Shipment Inspect the shipping container for damage If the shipping container or cushioning material is damaged keep it until the contents of the shipment have been checked Check the shipment for completeness and check the instrument electrically and mechanically If the contents are incomplete there is mechanical damage or defect or if the instrument does not pass the selftest performance verification notify the nearest Hewlett Packard Office Keep the shipping materials for carrier s inspection The Hewlett Packard Office will arrange for repair or replacement at HP s option without waiting for claim settlement The following items are shipped with the Digitizing Oscilloscopes e Two HP 54505B 54510B or four HP 54506B 54512B HP 10441A Probes Probe to BNC Adapter 1250 1454 HP 54500 Digitizing Oscilloscopes Getting Started Guide HP 54505B 53500B 54510B
72. The active field is highlighted in inverse video To select the trigger channel to be used as a source e Press the selection key and move the highlighted field rotate the knob until the desired channel is displayed The level option sets the trigger level in volts that is applicable only to the tv trigger source e Press the function key again and the highlighted window moves to the polarity option and selects the rising edge or falling sync pulses to trigger on The field key selects field 1 or 2 The line key selects which line the trigger will be generated on This selection is dependent upon which field has been selected previously If the previous selection is the 60 Hz 525 lines standard the options available depend upon which field 1 or 2 is selected e If field 1 is selected select from line 1 to 263 in field 1 e If field 2is selected choose from line 1 to 262 in field 2 This tv trigger mode is compatible with broadcast standard M HP 54505B 54506B 54510B 54512B Front Panei Reference If the 50 Hz 625 lines standard is selected the options are also dependent upon field settings e If field 1 is selected the range of lines is from 1 to 313 e If field 2 is selected the range of lines is from 314 to 625 This tv trigger mode is compatible with broadcast standards B C D G H I K K1 L and N holdoff Key The holdoff key enables the oscilloscope to hold off the trigger event from 40 ns to 320 ms and
73. UM 8 2 SOUICE Xy T ROY AA due f E d cnt a ds 8 2 Xl postion Key as aces Aa tattooed 8 2 VEDOSIUIOR KEV dao mlt te ide 8 3 SOURCE AZ V2 ACY aria 8 3 X2 POSILIOA KEY n 8 3 V2 POSIOR Key i costi didas 8 3 Chapter 9 Waveform Math Menu Introduction to the Functions llle ne 9 1 Defini a FONCION tira 9 3 Puncuon Bey t56 iu6isoese iia C aad Bobo o ar 9 3 display Key oos sace a RID PREIS IU Es E T 9 3 operand chan mem Key l llllle leere 9 4 Operator Key iu coc dd ene cuia do 9 4 chan mem a 9 5 SEDSUIVILY KEY At dar tadas 9 5 HP 54505B 54506B 54510B 54512B Contents 5 Front Panel Reference ONSE KOV PERPE 9 5 ggg t er ETT 9 6 DEAK SCORCH ROY MEE 9 6 search level Key iuosssuvsr Ead be bine evden alos 9 6 MOTO T tas nee 9 6 horiz magnify Key 2 0 0 0 0 00 cece ccc cc cc auacurecsevanee 9 7 regspan KOy PE 9 7 COMED Ed Key gd pian dea EAA 9 7 Br OT DOUG p 9 8 O rms 9 9 GIISEE BEV Sait hou iib eI abot bees atsunedsecdad 9 9 WINGOW 0 HE 9 9 MOEKE voe ay oo pidad eve Edad eid E pU Ed eek 9 10 Vertical Scaling Units cc rd 9 10 Making FFT Measurements 00 000000 cece ccc rro 9 10 Connect the Dots ici CR IX E FERE ranas 9 10 Amplitude Measurements 0 0 0 0 0 00 cece cece ee noo 9 10 Frequency Measurements 0 000002 0 Pos bios 9 11 Computation of dBm LLul elles essen 9 11 Computation of dBV 2 2 0 ccc roo 9 12 DC Va id ht me EE etr 9 12 UD op MTM EE 9 12
74. VEFORM MATH renote teik FETT X ve sagni y inv int airt E peak search vorkeri marker iA be 6 PX AA pro EE Hid searcn teve 250 000 HRZ 500 000 MHZ OPD LE 12 10 0 d8 91iv oft ssBi 20 00 g 0 00000 H2 fft fine Figure 9 8 FFT Plot of Channel 1 Signal Wavetorm Math Menu HP 545058 54506B 545108 545128 9 18 Front Panel Reference FFT Windows Set the of points to 1024 and the window to rectangular The same signal 1s shown in figures 9 9 through 9 11 filtered by the different windows by selecting rectangular hanning and then flattop p stopped rggoie iistan agnify i a a E on freq span t 5 5 i y r ed ETE E mi bheaga tE A t pter M Ue b DIRE eee E ie rte i D winden pii EB Bay Dene rn na rana araa A A ee re a A er er 0 00000 Hz 250 000 MHZ 500 000 MHz le i f2 10 0 udB div offset 20 00 dBs transients Figure 9 9 Rectangular Window for Transients da stopped remote listen mmm magnify Hindon E Masks god EE frequency res gore Figure 9 10 Hanning Window for Frequency Resolution 0 00000 Hz 250 000 MHz 500 000 mci f2 10 0 dB div offset 20 00 dBa HP 545058 545068 545 10B 54512B Waveform Math Menu Front Panel Reference 9 19 Waveform Math Menu 9 20 Fi stopped remote Jisten hertz magnify am i on pes emp querere ande ree o i es
75. acquisition mode repetitive e Channel 1 turned on Vertical sensitivity 400 mV div offset 200 V de coupling input impedence 1MQ e Channel 2 HP 54505B 54510B or 3 HP 54506B 54512B turned on Vertical sensitivity 400 mV div offset 200 mV de coupling input impedence 50 HP 545058 54506B 54510B 54512B Trigger Menu Front Panel Reference 6 17 e Display minimum persistence 2 screens e Trigger Channel 1 level 200 mV Channel 2 HP 54505B 54510B or 3 HP 54506B 54512B level 200 mV Set the trigger mode to state e Setthe patternto 1L X HP 54505B 54510B or 4XL X HP 54506B 54512B as follows 1 Press the function key until the first bit is highlighted 2 Turn the knob until the highlighted area is 4 3 Select the next bit in the pattern and select L or X 4 Continue until all bits are selected in the pattern e Press the when key until is present is selected see Figure 6 11 fp running remote tatk edge pott BERT detay tv glitch present 0 000 ns 0 00000 50 000 ns 19 Q ns di v repetitive hotdoff tine RENA Figure 6 11 Channel 1 Clock XLX State Trigger Menu HP 54505B 54506B 54510B 54512B 6 18 Front Panel Reference Channel 1 is displayed in the top screen To satisfy the conditions of the bit pattern channel 2 or 3 must be low lower than the channel s trigger level or less than 200 mV When the signal on channel 1 goes higher than 200 mV and c
76. ade 10 5 Store laure Rey uou poten ERR UE ene EUR RE acsdca os 10 5 DEO CCE A EY an rai 10 5 mask MOM ud sd dta nu bas barum dedos tan 10 6 mam mask MEHU ouai ge d eie erano dris erue cee e d mds 10 6 reference Witt Key dada dao pol 10 6 dutomask Key oo ccce reete Eve uisu pU ESPERA 10 7 MASK editor Bey dr aa 10 7 Automask Menu o oooocoroocommrmmm oo oo 10 7 automask KEY oia ibo ERREUR a di es 10 7 copy scaling Key pa ELON MUR Bei te LU en EE es 10 8 SOUFCE memory Key asi osi P3 aid 10 8 tolerance units ROY ra atar dens 10 8 Doro vert Key copas dece EN 10 8 main mask menu Key dara data 10 9 Mask Editor Menu sidad 10 10 Mark point Mey taa cease 10 10 connect points Key sceso arrr unnar tad donee ous 10 10 Cl at ponis ROY ais 10 11 A MT 10 11 pont li8 0 Mc CT 10 11 clear Mask Key ase Sd Oo Seded ues eins 10 11 main mask menu Key csesccccscccccervcvcvecees 10 11 Waveform Save Exercise looiiecsdAcu eese ttio sit ordada NEN 10 12 Mask EXCISE ada van oa SUPE du Sada TT 10 13 HP 54505B 54506B 545108 54512B Contents 7 Front Panel Reference oar E Contents 8 Define Measure Menu Introduction to Measurements 00000 0 0 0c ccc ecucenuees 11 1 Measurement Selection 0 0000 0000 cece cece cece nooo 11 2 measure define limit compare Key sicut 11 3 meas Submenu TERR 11 3 continuous Key 2 2 0 0 0 00000 e cece ee ceeeee 11 3 S
77. age 115 230 V ac 25 to 1596 48 66 Hz Power 350 VA maximum Net approximately 10 kg 22 Ib Shipping approximately 20 kg 44 Ib Refer to the outline drawings below NOTES P Dimensions gre for genero information oniy if dimensions are requirad for building specia enclosures contact your MP field anginger 2 Dimension are in miltimetres ond iachex a 425 4 16 78 Hes HP 8 4505B 54506B 54510B 54512B Front Panel Reference Fast Fourier Transforms Peak Search Channels or Memories Variable Sensitivity and Offset Selectable Time Record Length Horizontal Magnification and Center Frequency Control The following features pertain to the FFT function of the oscilloscope e 2 channel HP 54505B 54510B or 4 channel HP 54506B 54512B simultaneous acquisition at up to 500 MSa s HP 54505B 54506B or 1 GSa s HP 54510B 54512B e FFTs on both repetitive and single shot transient signals e Selectable 512 to 8192 point time record FFTs e Frequency resolution from 1 22 mHz milliHz to 975 kHz HP 54505B 54506B or 1 22 mHz to 1 95 MHz HP 54510B 54512B in the real time acquisition mode e Automatic peak search cursors read amplitude and frequency e Selectable FFT window functions including the flattop window for very accurate amplitude measurements Peak search automatically snaps cursors to any two selected peaks located anywhere in the displayed frequency span You can select pea
78. ail set to continue and a FAIL condition occurs the hardcopy continues as long as the FAIL condition persists after fail Key The test can be stopped when a failure occurs or it can be continued Refer to saving multiple and nonvolatile memory for additional information COMPARE CHANNEL AGAINST MEMORY IS CHANNEL LESS THAN MEMORY 1 OR 3 E IS CHANNEL LESS THAN MEMORY 1 OR AFTER SPECIFIED ALLOWANCE m NO ae is CHANNEL GREATER THAN MEMORY 2 OF 4 APTER SPECIFIED ALLOWANCE 1S CHANNEL GREATER THAN MEMORY 2 OR 4 a 5450283 t Figure 11 2 Waveform Companion Test HP 54505B 54506B 54510B 54512B Froni Panel Reference Define Measure Menu 11 14 The UTILITY menu accesses the calibration and service functions as well as sets up the HP IB interface The submenus include self test calibration service real time clock and a listing for the current firmware revision date This menu controls all of the service functions that maintain the reliable performance of the oscilloscope These submenus are part of the UTILITY menu e HP IB menu e Selftest menu e probe cal menu e self cal menu e service menu ARCU e System menu HP IB menu probe cal menu aa self cal menu M fee te service menu Figure 12 1 Utility Menu HP 54505B 54506B 54510B 54512B Utility Menu Front Panel Reference 12 1 HP 1B menu The HP IB submenu ma
79. an transfer the entire block of waveforms to the external computer HP IB bus users can specify the number of points to be stored and the number of waveforms to be captured Repetition rates vary depending on record length and time base setting slower sampling rates See figures below Sequential Single shot Maximum Sample Rate Data Transfer Rate Approximately 120 KBytes per second Probe Compensation ac Calibrator Output A 500 Hz approx square wave is provided for probe compensation A probe to BNC adapter is used to connect the probe to the rear panel Probe Compensation BNC output During instrument self calibration this output is used to provide other calibration signals as described in the Service Manual This same BNC connector is used for trigger output The utility menu allows the user to switch the BNC from probe compensation and calibration signals to a trigger output pulse The rising edge with amplitude from approximately 400 mV to 0 V when terminated into 50 HP 54505B 54506B 54510B 54512B Front Panel Reference 2 is synchronous with system trigger The falling edge of this pulse occurs approximately at the end of holdoff The rising edge should be used as the edge synchronous with trigger dc Calibrator Output This output is used for vertical calibration of the oscilloscope as described in the Service Manual Product Support Built in Self Test and Calibration Routines Internal self test capabilities
80. anel Reference norm The norm mode sets the time parameters for displaying data or selecting persistence The range in the variable persistence mode is from minimum very fast overwriting and updating the display to infinite with variable settings in between from 500 ms to 10 seconds This means that data display records can be preset to any of the persistence settings Settings less than infinite display data for the specified period of time and then overwrite old data When norm is selected the function key beneath the norm field is activated This field displays the current persistence setting that can be set using either of the entry devices NOTE Connect the dots is available for waveform memones but not for channels with persistence e Fast persistence settings are useful when the input signal is changing and immediate feedback is needed e More persistence is useful when observing long term changes in the signal or low signal repetition rates e Infinite persistence can be used for worst case characterizations of signal noise jitter drift etc In this mode the HP 54505B HP 54506B HP 54510B and HP 54512B is used as a storage oscilloscope e At minimum persistence a point is erased when a new point is acquired in the same time bucket on the display Therefore the waveform filis quickly and each point remains for a minimum amount of time Note When the keypad is used to change persistence settings any entry lo
81. annel Menu Front Panel Reference 9 3 more preset The more preset probe key toggles between the two levels of the channel probe Key EISE NNEL MORE probe key The probe key selects probe attenuation with a range of 1000 1 to 0 9000 1 Attenuation is adjusted by either knob or entry keypad When the knob is in coarse mode adjustments are incremented or decremented in the 1 2 5 sequence When in fine mode adjustments are in 0 1 increments Probe attenuation affects scaling factors for the display not sensitivity at the input Probe attenuation is calibrated in the Utility menu See Chapter 12 Utility Menu for information on probe calibration Attenuation factors are saved with the front panel setup Channel Menu HP 54505B 54506B 54510B 54512B 5 4 Front Panel Reference ECL Key The ECL key sets the oscilloscope to levels optimized for ECL circuits e V Div 200 mV div 400 mV div if of screens is 2 and 800 mV div if of screens is 4 offset 1 3 V coupling de impedance 1M ohm Trigger level 1 3 V Trigger slope no change e e RECALL 0 returns the menu to the previous settings TTL Key The TTL key sets the oscilloscope to levels optimized for TTL circuits e V Div 1 V div 2 V div if of screens is 2 and 4V div if screens is 4 o offset 2 5 V coupling de impedance IM ohm Trigger level 1 4 V Trigger slope no change e e o 6 To return to the previous setti
82. art of the transition edge upper lower mid used as a reference point e When setting edge count fields it is handy to press the fine key In the coarse mode the oscilloscope increments decrements by tens 1 11 21 4000 In the fine mode the increment decrement sequence is in Ds e When the delay measurement is selected from the front panel the source c D m and the source number must also be selected e width allows choice of only the point on the waveform transition upper lower mid to measure when making the positive width of a displayed waveform e width allows the choice of only the point on the waveform transition upper lower mid to measure when making the negative width of a displayed waveform HP 54505B8 54506B 54510B8 54512B Front Panel Reference Measure Limit The oscilloscope can run limit tests on up to three measurements The Submenu menu presets certain conditions and stores any failure data for evaluation at a later time Set the limit test while in this menu and select the measurement from the front panel DEFINE MEAS When a test is running statistical data is displayed describing the test current measurement minimum value maximum value average value e e 6 g Failure data as well as information regarding memory and save data is displayed Note seve on fail At least one measurement and up to three measurements must be selected from the keypad The limit
83. ation process Pressing this key terminates the calibration process leaving the previous calibration factors intact This key returns to the Utility menu SELF CAL MENU cal setect ae rapete tisten PROTECTED SYSTEH CAL 995 1 EB 1 dslay 2 time null 3 log c trigger channel 4 att start ca P passed F failed D defaulted E corrupted prefixed if nan ros revision without re ca function chant chan2 chen3 chand continue A D oP ep ap p Gein oP eP ap sp Offset oP af ap aP Hysteresis sP oP sp ep print cats Trigger oP oP ap ep Delay op oP oP op Tige Null aP sP p sport Logic Trigger P exit senu Figure 12 7 Self Cal Options HP 54505B 54506B 54510B 54512B Utility Menu Front Panel Reference 12 11 service menu Utility Menu 12 12 The service menu is used for firmware calibrations hardware adjustments and calibrations that need not be performed often These are explained in the service manual and are to be used only by qualified service personnel Note When certain calibrations have been performed other calibrations must be continued Only qualified service personnel with access to the service manual are to perform calibrations in the service menu See the HP 54505B 54506B and HP 54510B 54512B Service Manual for compiete information on the service menu and calibration cycles HP 54505B 545068 54510B 54512B Pront Panel Reference SYSTEM MENU The Sys
84. ative synchronizing pulses A trigger occurs on the selected line and field of a 2 1 interlaced composite video signal Line numbering is 1 to 263 for field 1 and 1 to 262 for field 2 This TV trigger mode is compatible with broadcast standard M 50 Hz 625 Lines Same as 60 Hz 525 lines except that line numbering is 1 to 313 for field 1 and 314 to 625 for field 2 This TV trigger mode is compatibile with broadcast standards B C D G H I K K1 L and N User Defined Mode Source is selected to be any one of the three inputs Trigger level is adjustable for the selected source The trigger is qualified with a high or low pulse that meets a selectable time range The trigger is an occurrence of a rising or falling edge of the source after the qualifying pulse The time settings for the qualifier are selectable from 20 ns to 160 ms The trigger occurrence value is selectable from 1 to 16 000 000 NOTE All TV trigger modes require a clamped video signal for stable triggering Use the HP 11334 TV Video Sync Pod to provide clamped video output that can be used in conjunction with the oscilloscope s TV triggering capabilities Trigger Holdoff Trigger can be held off either by time or events over the ranges e time 40ns 320 ms e events 2 16 000 000 An event is defined as the specified trigger condition A separate holdoff setting time or events is available for each trigger mode except delayed trigger which is set to 40 ns
85. attop The FFT operation assumes that the time record repeats Unless there is an integral number of cycles of the sampled waveform in the record a discontinuity is created at the end of the record This is referred to as leakage In order to minimize spectral leakage windows that approach zero smoothly at the beginning and end of the signal are employed as filters to the FFT Windows work by weighting points in the middle of the waveform record higher than those at the ends of the record For example a hanning window looks like the first half of a sine wave The hanning window multiplies the points in the center of the record by 1 and the points at the start and the end of the record by zero The rectangular window is essentially no window All points in the record are multiplied by 1 The rectangular window is useful for transients signals and signals where there are an integral number of cycles in the time record The hanning window is useful for frequency resolution and general purpose use It is good for resolving two frequencies that are close together or for making frequency measurements The flattop window is the best window for making accurate amplitude measurements of frequency peaks HP 54505B 54506B 54510B 54512B Waveform Math Menu Front Panel Reference 9 9 more Key The more Key returns the first WAVEFORM MATH menu to the display Vertical Scaling Units measurements Connect the Dots Amplitude Measurement
86. ault scaling is determined by the original operand The differentiation function by nature amplifies noise effects Therefore differentiation should be applied to signals with high signal to noise ratios e fft fast Fourier transform When fit is selected the fast Fourier transform function of the specified channel or memory is plotted Selecting this key adds the fft functions to the WAVEFORM MATH menu In the WAVEFORM MATH menu when the fft function is selected the readout for the horizontal axis changes from time to Hertz and the vertical readout changes from volts to dBm chan mem Key This key selects the second operand that is manipulated against the first operand The choices are any of the displayed channels or any of the memories This key is not available if the operator is magnify inv int diff or fft sensitivity Key The vertical sensitivity of the function is set with this key This setting is for ease of viewing and making measurements on the function Offset Key The offset of the function is set with this key HP 54505B 54506B 54510B 54512B Waveform Math Menu Front Panel Reference 9 5 peak search Key x vs magnify Inv int dif WE peek search marker mark er2 Search level more ft controls search level Key more Key Waveform Math Menu 9 6 FFT Keys The following keys are available when the fft operator is selected The peak search measures
87. aveform and is referred to as zooming in Increasing time div compresses the waveform and is referred to as zooming out Panning is moving the acquired waveform horizontally on the display It is controlled by the time base delay control Increasing the delay moves the waveform to the left and increasing the delay moves the waveform to the right Pan and Zoom This exercise shows how the time base is used to zoom in on and zoom out Exercise of a single shot waveform The delay time base is then used to pan the waveform horizontally on the display e Using a coaxial cable connect the rear panel AC CALIBRATOR signal of the oscilloscope to channel 1 e Press AUTOSCALE The rear panel signal is displayed on screen as in figure 4 11 zooming in TIMEBASE menu select realtime acquisition mode e Press RUN STOP key to stop the acquisition e Press CLEAR DISPLAY key to clear the screen HP 54505B 54506B 54510B 54512B Timebase Front Panel Reference 4 15 Timebase 4 16 Ap running remota taik 4 200 Rmyv div foyfset 437 5 nV 1 000 1 IHR de 5 00000 ns 0 00000 5 5 00000 ss 1 00 as div realtine Trigger Node Edge 1 305 5 ay 4 11 Rear Panel Signal Autoscaled e Press the SINGLE key to acquire one data acquisition e Select time division in the TIMEBASE menu e Rotate the front panel knob Increasing time div displays more of the acquired waveform on the screen Decreasing time div zooms in on the acquired wavefo
88. cale The measurement scale is incremented decremented with major divisions and minor divisions based on the vertical and horizontal measurement settings e axes displays a background with the measurement scale crossing at mid screen e grid background is a complete graticule with ten horizontal major divisions and eight vertical major divisions Only the axes portion of the graticule has a minor division scale connect dots Key Connect the dots is a technique used to display waveforms with all data points connected This makes viewing the waveforms easier because the signal is complete and has no breaks The waveform in figure 7 4 is the same as in figure 6 16 after the connect the dots key is on Note Connect the dots does not generate data points The oscilloscope connects data points linearly HP 54505B 54506B 54510B 54512B Display Menu Front Panel Reference 7 6 fe running DISPLAY remolie taik Cic persistence vo cr ae of screens E 2 4 frane connect gots BE 2 50000 us 0 00000 s 2 50600 us 00 ns div repetitive Figure 7 4 Connect the Dots HP 54505B 54506B 54510B 54512B Display Menu Front Panel Reference 7 7 Healtime The display menu selections available when the TIMEBASE acquisition Acquisition mode is set to realtime and sequential is set to off as shown in figure 7 5 Display Menu seq off DISPLAY realtime persistence ETS infinite
89. copy operating characteristics B 15 HARDCOPY Key 3 3 holdoff after autoscale 3 5 holdoff exercise 6 4 Key 6 3 6 10 6 16 6 29 6 34 horiz magnify Key 9 7 horiz vert Key 10 8 10 11 horizontal characteristics B 6 horizontal operating characteristics B 8 horizontal specifications B 3 hour Key 12 15 HP IB operating characteristics B 15 HP IB interface 3 3 HP IB menu 12 2 HP 1B test 12 6 HP IB connecting the interface 2 7 Humidity 2 2 index 3 include Key 7 13 Input 3 9 inspecting the instrument 2 1 Instrument Description B 1 Instrument Reset 3 11 Intensity Control 2 7 interpolation Key 12 16 K key of points 4 7 9 8 of segments 4 7 of screens 7 4 7 8 7 12 abort 12 8 12 11 add to memory 10 4 after fail 11 9 11 14 allowance 11 12 automask 10 7 AUTOSCALE 3 5 cal select 12 10 center freq 9 7 chan mem 9 4 channel 12 9 12 11 channel impedance 12 8 channel select 5 2 Clear Display 3 3 clear memory 10 4 clear mask 10 11 clear points 10 11 clock 6 15 CLR MEAS 11 2 compare 11 11 connect dots 7 6 7 9 7 13 connect points 10 10 index 4 key continued continue 12 8 12 11 continuous 11 3 copy scaling 10 8 coupling 5 3 day 12 14 Delay 4 3 6 22 delay timebase 4 3 delta t x markers 8 1 delta V y markers 8 1 display function 9 3 display pixel memory 10 4 display waveform memory 10 2 Display Mode 7 2 ECL 5 5 en
90. creen Front Panel Overview HP 545058 54506B 54510B 54512B 3 8 Front Panel Reference The MENUS section consists of nine keys TIME BASE CHAN TRIG DISPLAY AUAV y x WFORM MATH WFORM SAVE DEFINE MEAS UTIL 60 0 6 6 GO 9 09 0 Each of these menus is discussed in the following chapters J RAE a OR 1 A JUBODDOS i OU HT _ Figure 3 4 Menus Section HP 545058 54506B 54510B 545128 Front Panel Overview Front Panel Reference 3 7 Entry Devices The ENTRY device section contains a multifunction numeric keypad a selection knob and FINE key Figure 3 5 Entry Section Numeric Keypad The keypad is for direct numeric input To input known values directly press the associated softkey to activate the desired field on screen and then select the units with the numeric keys For example do the following steps to set the vertical sensitivity to 500 mV Select V div in the Channel menu to ensure it is the active field displayed in full bright e Press 5 0 0 mV in sequence Front Panel Overview HP 545058 545068 545108 54512B 3 8 Front Panel Heference The blue key on the numeric keypad selects the alternate function when pressed before a numeric key on the front panel keypad The alternate function of the keys on the top blue text are automatic measurement functions The CLEAR key clears any selections made for the active field Knob The knob changes values withi
91. ct any other signals that may be connected to other inputs e Press AUTOSCALE key e Press TIME BASE key and select realtime mode HP 54505B 54506B 545108 54512B Timebase Front Panel Reference 4 13 e Set time base to 10 ns div e Set sequential key to on set of points to 501 and ef segments to 10 e Press RUN STOP key to capture and process data e Press DISPLAY key and set display to NORM e Press segment key and turn knob to display all ten segments Turn knob past ten to view all segments simultaneously fp stopped DISPLAY repate listen MAR segment s connect dats Mae on 0 00000 s 50 000 ns 10 0 ns div reaktine PM a Currentiy Included gore exc luda include Figure 4 10 Sequential Single Shot 50 000 ns Timebase HP 54505B 545068 54510B8 54512B 4 14 Front Pane Reference Pan and Zoom Pan and zoom features are available in the realtime acquisition mode and operable only when the acquisition is stopped Applications that require precise evaluation of low repetition rate signals such as radar and transponder pulse trains are simplified by zooming and panning on single shot data Zooming either expands or compresses the acquired waveform on the horizontal axis of the display It is controlled by the time base time div control for expansion magnification or compression of a single shot waveform in the real time acquisition mode Decreasing time div expands the w
92. cted record was saved The source is specified using the saved source key Maximum records available are displayed at the bottom of the saved source key Displays NO FAILURES when failure data is not available view failures Key This key toggles the multiple memory display on or off If failure data has not been saved the key remains off and a message stating multiple memory is empty 1s displayed store failure Key By pressing this key the specified multiple memory using saved source and failure keys is stored in the currently selected nonvolatile memory location When the key is pressed an immediate erase of the selected memory occurs then a write to the memory is executed If the destination memory is protected a message indicating that the store was not successful If no failure data has been saved a status message is displayed protect Key This key toggles the selected waveform memory write protect to on or off When on is selected any attempt to store data is not allowed and a message indicating that the store was not successful is displayed HP 54505B 54506B 54510B 54512B Waveform Save Menu From Panel Reference 10 5 WAVEFORM SAVE usveform multiple reference ula HESS ref ref2 mask editor senuj The mask menu allows the user to create upper and lower limit masks or templates used during the compare test These templates can be created automatically using a sample signal and entering specific tolerance l
93. cy of input signal 6 All of these affect the effective resolution of the instrument Some manufacturers specify effective bits using half scale sinewaves While the effective bits performance using half scale testing is overstated when compared to full scale testing Hewlett Packard publishes both sets of numbers for the oscilloscope so that when comparing effective bits HP 545058 54506B 54510B 54512B General information Front Panei Reference 8 7 performance between digitizing oscilloscopes a fair comparison can be made The oscilloscopes s typical performance for a single acquisition is shown below HP 545108 and 545128 aid For more information about cffective resolution please contact your Hewlett Packard sales office and ask for Product Note 5180A 2 Dynamic Performance Testing of A to D Converters pub 02 5952 7629 Horizontal Pan and Zoom Changing the Time div and or Delay values once acquisition has been stopped allows access to all 8k points of data that are captured on each acquisition Real time mode only Delay Between Channels Difference in delay between channels can be nulled out to compensate for differences in input cables or probe length Use time null cal found in the Probe Cal menu see UTIL key Reference Location The reference point can be located at the left edge center or right edge of the display The reference point is defined as the trigger point plus the delay time Trigg
94. derstood and met The CAUTION sign denotes a hazard It calls attention to an Operating procedure practice or the like which if not correctly performed or adhered to could result in damage to or destruction of part or all of the product Do not proceed beyond a CAUTION sign until the indicated conditions are fully understood or met introduction is UP 1 1 Chapter 1 Chapter 2 instrument Setup O anae area eiae de d UN 2 1 ELO CHOR AAA E TUE META edid 2 1 Contents of Shipment ooooooocororomorrcrcrrrr e 2 1 Available Accessories 0 00 celeres an 2 2 Operating Environment 0 0 ccc cece ecccccccccecceees 2 2 Storage and Shipping 0 0 0 e cece cece ceecenee 2 2 ll r MEC 2 3 Power Requirements 0 00 ccc eese erre 2 3 Selecting Line Voltage l a 00 eee eee neeceees 2 4 Ml A O 2 5 FOWEF COIG css e deci 2 5 Intensity Control 2ccooseulidu eee ret er o EV RUD EE CE 2 7 Air Flow Requirements 0 0 00 ccc ceccceccccceeceaces 2 7 Connecting External Equipment 0000 00 ccc cece cece eee 2 8 Chapter 3 Front Panel Overview Introduction to Ihe Front Panel o2 esee rt cda Be 3 1 A COMPO A ia Ualeceaeaie noises ad Bud 3 2 KUNSTOP Key cuniarcia dictadas 3 2 SINOLE KOY EPA 3 3 CLEAR DISPLAY Key 00 00 ccc cccecceveceaeeees 3 3 BR NN OY tes cg tanta ici 3 3 HARDCOPY Key otra ae dla dd 3 3 O OO 3 4 AUTOSCALE Key iaa dA gee ane 3 5 KECALE C AA ARENE EAEE EA 3 5 VED
95. don t care so the input level is disregarded and the external trigger input must be higher than the trigger level set for external trigger if these conditions are satisfied by the inputs then the oscilloscope generates a trigger event Note When any channel is not being used in the qualifier pattern it should be set as don t care The trigger level is still compared to the no input channel and a high or low is determined The only true don t care is X If the pattern XXX HP 54505B 54510B or XX XX HP 54506B 54512B is selected a trigger event does not occur because a trigger event is not defined when Key This key controls five sets of conditions that must be satisfied to generate a trigger event These conditions are as follows e when entered a trigger is generated on the first transition that makes a pattern true The pattern must be false and go truc to generate the trigger HP 54505B 54506B 54510B 54512B Trigger Menu Front Panel Reference 6 9 holdoff Key e when exited a trigger is generated on the first transition that makes the pattern false The pattern must be true and go false to generate a trigger o when present gt a trigger is generated when a trigger pattern is true longer than a specified minimum time period This time period is specified in the next selection key that is activated when present gt is selected The present gt time ranges from 20 ns to 160 ms e when present lt a trigger is ge
96. e sequential single shot mode is exited Note Sequential data is retained unless another sequential single shot capture is performed failure data is saved to multiple memories power ts cycled Sequential single shot is only available when the oscilloscope is in realtime mode Once realtime is selected the sequential key is displayed Note that this key is initially displayed in the off position sequential single shot disabled allowing normal realtime mode operation When sequential mode is set to on the following additional keys are displayed e of points e of segments Press this key to select the sequential single shot mode This mode is only available when the oscilloscope is in realtime mode Once selected the screen is cleared and the oscilloscope is placed in the stopped state to allow selection of acquisition parameters points and segments Pressing the RUN key starts data acquisition While the oscilloscope is acquiring data the screen displays running If the oscilloscope is waiting HP 54505B 54506B 54510B 54512B Front Panel Reference for a trigger ACQUIRING XX is displayed Once the data has been acquired messages stating that the data has been captured and processed are displayed Press the STOP key to abort the acquisition process See Chapter 7 Display Menu for information on displaying acquired data of points Key The of points per acquisition or segment are specified from 4 to
97. e ee ee ea 1 ie r A o O E SA 2 50000 us 0 00000 2 950000 us 300 as div repetitive Figure 6 15 Ten Burst Pulse w Stable Trigger e Return to the trigger menu and set trigger on count to 5 This tells the oscilloscope to trigger on the 5th rising edge of the next burst see Figure 6 16 4p running DELAY TRIGGER remote taik See edge pail state fees tv glitch queiify on sapere pattern sieta 2 50000 us 0 00000 2 50000 us 00 ns div repetitive trigger on Figure 6 16 Ten Burst Pulse Triggered on Pulse 5 HP 545058 54506B 54510B 54512B T Trigger Menu Front Panel Reference 6 25 e Change the trigger on count key to 9 see Figure 6 17 fp running BELAY TRIGGER reaote talk ees cake GULO edge patt state Begs tv glitch qualify on state deley tine 900 ns div repetitive trigger on count MEET Figure 6 17 Ten Burst Pulse Triggered on Pulse 9 By setting the oscilloscope to the delay trigger mode a specific time or count to delay between qualification and trigger can be added In this exercise the trigger was delayed to get a stable display When the time delay had elapsed the oscilloscope began counting rising edges until it found the ninth edge Trigger Menu i HP 54505B 545068 54510B 54512B 6 26 Front Panel Reference TV Tr ig ger The TV TRIGGER menu enables the oscilloscope to trigger on clamped tv signals T
98. e is displayed in each horizontal time position of the display The waveform is updated as new data is acquired for a particular horizontal time position Variable Persistence The time that each data point is retained on the display can be varied from 500 ms to 10 seconds or the points can be displayed indefinitley HP 545058 54506B 54510B 54512B General information Front Panel Reference 8 11 Markers Waveform Math General information 8 12 Time Base in Realtime Mode Single Persistence One waveform data value is displayed in each horizontal time position The entire waveform is replaced with each new acquisition infinite Persistence Waveform data is allowed to continuously accumulate on the screen and remains until display is cleared Oversampling Filter On time division settings when less than 500 points are acquired across the screen lt 100 ns div for HP 54505B 54506B or lt 50 ns div for HP 54510B 54512B a built in digital filter automatically reconstructs the data This filter is a combination between a Sin X X and a Gaussian filter Time Base in Sequential Single Shot Used to view previously captured segments as defined in the TIMEBASE menu Individual segment numbers from any channel can be excluded selected and viewed Viewing options include Normal Selection and viewing of any or all previously captured segments Average Averages and displays previously captured segments into a composite waveform
99. e right of the display This section controls the following functions e Controlling display and acquisition e Selecting local control e Activating hardcopy Selection of any key in the SYSTEM CONTROL section causes the oscilloscope to execute that command immediately UE ut SYSTEM CONTROL Eocene serene y aan xd CLEAR HARD 535 e Ea i UUL Figure 3 2 System Control Section RUN STOP Key The RUN STOP key toggles the acquisition status of the oscilloscope If Front Panel Overview 3 2 the oscilloscope is currently running the current status is displayed in the the top left corner of the display in the message field the instrument is placed in the stopped mode In this mode normal acquisition is stopped and the last acquired data is displayed If the oscilloscope is stopped it is immediately changed to another mode for example running awaiting trigger or auto triggering HP 54505B 54506B 54510B8 54512B Front Panel Reference SINGLE Key The SINGLE key activates the acquistion system for one trigger event One acquisiton is made and displayed then the data acquisition and display cycle is stopped In repetitive mode this single acquistion is superimposed on the current displayed data If the display has been cleared before the SINGLE key is pressed only one acquisition is displayed CLEAR DISPLAY Key The CLEAR DISPLAY key clears the display and resets all associated measurements Ifthe oscillosc
100. e these values HP 54505B 545068 545108 54512B Define Measure Menu Front Panel Reference 11 3 Measure Define Sub menu standard user defined thresholds measurements Key DEFINE MEAS limit campore CRETA measurements upper threshoid 54502W57 Define Measure Menu 11 4 The Measure Define submenu selects measurement standards assigned by the user This gives the option of making measurements based on signal width or delay settings or threshold parameters If standard is selected no other choices are available and the oscilloscope makes measurements based on IEEE standards If however user defined is selected two sets of test conditions are available to define the measurements This key sets vertical test conditions voltage or percentage ratios independent of the horizontal test conditions edge slope and count Both sets of test conditions must be set to define the measurement The thresholds submenu sets the following vertical test conditions percentage ratio from 25 to 125 voltage levels from 250 kV to 250 kV Note e e The upper and lower thresholds must be set to levels that will fall on the displayed waveform The message not found is displayed if either threshold is not found on the waveform Threshold settings apply to all user defined front panel measurements HP 54505B 545068 545108 545128 Front Panel Reference This feature is useful
101. ea E ne Fo aT 50 0 nsan 6 0 ns div resitipo saved 08 194 250 000 ns 9 16 Displaying Memory 1 FFT HP 54505B 54506B 54510B 54512B Waveform Math Menu Front Panel Reference 8 22 introduction to This chapter describes how to select the waveform pixel multiple and the Memories mask memories on the oscilloscope The menu consists of four submenus e waveform memories mi m4 used to store one waveform at a time e pixel memories pl and p2 used as a screen store In this manner the memories are used as a storage oscilloscope e multiple memories 1 to 665 used to store failure data on limit and compare tests e mask memory pairs m1 m2 and m3 m4 used to generate and store upper and lower waveform masks for compare testing WAVEFORM SAVE muiuple mask r3 i SEE FIGURE 10 2 nonvoiatile i nonvolatile eeN saved source l display failure clear mernory i f view failures add to memory protect Store failure Figure 10 1 Waveform Save Menu HP 54505B 54506B 54510B8 54512B Waveform Save Menu Front Panel Reference 10 1 waveform pixel multiple mask Key This is the function key used to choose the desired type of memory The active menu is highlighted Each memory type waveform pixel multiple or mask has a separate menu When this key is pressed the appropriate menu is displayed waveform Menu WAVEFORM SAVE SERERE Pixel suliipies mask protect 1 i OF E n
102. easure continuous on off ac statistics rms Utility Menu System submenu clicker on AC BNC probe comp interpolation on Utility Menu HP IB submenu address talk address address 7 at key down power up not changed during Recall Clear Front Panel Overview 3 13 introduction to This chapter contains a description of the TIMEBASE menu and how the the Timebase entire horizontal display and parameters are controlled with this menu TIMEBASE TIMEBASE 500 kSe s delay reference reference left RAS right rapatitive realtime Let on Figure 4 1 Timebase Menu Time Div Key The time division function controls the time scale on the horizontal axis from 1 ns div 500MSa s HP 54505B 54506B or 1 GSa s HP 54510B 54512B to 5 sec div 10 Sa s The main time base is incremented and decremented in a 1 2 5 sequence The FINE Key does not affect the time base settings while the acquisition is running This key affects the sample rate at which the scope aquires data The sample rate for the selected time div setting is displayed below the time div field In the realtime mode and with the acquisition stopped this HP 545058 54506B 545 1 0B 54512B Timebase Front Panel Reference 4 1 Timebase 4 2 Acquisitions are not displayed until all data is available similar to normal acquisitons to display The advisory runni
103. ected is set to off This key specifies the source used during all display operations Press key to highlight field then use the knob to enter the desired value Any active channel can be selected as the source If no previously captured segments exist for the channel specified a status message is displayed and the of segments key displays no segments This key selects the number of screens to be displayed Refer to Repetitive Display Menu for more information This unlabeled field selects one of four display backgrounds Refer to Repetitive Display Menu for more information HP 545058 54506B 54510B 545128 Front Panel Reference connect dots Key more exclude include Key DISPLAY MORE LIGA include from seg Ever to seg e REX enter chenges execute ail changes more exclude include Key This key is used to display waveforms with all data points connected Refer to Repetitive Display Menu for more information Press to display the segment exclude include menu choices This key ts used to select which of the previously captured segments can be used for display operations Press key to highlight desired choice as follows e exclude segments specified using the from seg and to seg keys cannot be viewed in normal mode and are not used during average and envelope modes e include previously excluded segments specified using the from seg and to seg keys can now be viewed and are no
104. ed up or down with the knob or the keypad Offset moves the voltage level at mid screen Offset moves the displayed signal up or down similar to the vertical position adjustment on an analog oscilloscope However because this HP 54505B 54506B 54510B 54512B Front Panel Reference oscilloscope has a true dc offset at the front end it provides a much wider offset range The offset voltage referenced to the vertical midpoint of the waveform display is shown at the right of the waveform display when the SHOW key is pressed Cou pli ng Key The coupling key has several selection variables dc dc BW lim ac ac BW lim ac LF reject e o6 6 0 4 When dc is selected 1 MQ and 50 Q dc input impedances are available as choices for input impedance When ac is selected only 1 MQ is available for input impedance Bandwidth limit is switchable with the different combinations of the coupling function Bandwidth limit reduces the effective dc bandwidth to about 30 MHz Ac coupling provides a high pass filter that rejects frequencies below about 10 Hz The LF reject provides a high pass filter rejecting frequencies below about 400 Hz Bandwidth limits and LF reject filters reduce the noise in all vertical paths channels and also the HP 54505B 54510B trigger path input Input impedance is 1 MQ for ac coupling and selectable 1 MQ or 50 Q de Impe dance when dc coupling is selected in the coupling function HP 54505B 54506B 54510BV54512B Ch
105. eference e Press the SINGLE key repeatedly The waveform fills in with each single shot addition to the waveform as in figure 4 6 When averaging is off e Data points on the display are not changed by new data when the SINGLE key is pressed e Data stays on screen until the instrument setup is modified or CLEAR is pressed When averaging is on e Data on screen is averaged with new data each time SINGLE is pressed e Assume that enough data points have been acquired to satisfy the number of averages set in the DISPLAY menu To view the 500MSa s or 1 GSa s digitizing rate e Press CLEAR DISPLAY key e Press SINGLE key The display shows a series of points 1 ns apart as in figure 4 7 This 1 ns separation is defined by the 1 gigasample second digitizing rate Ap stopped TIHEBASE fesote listen MENA E P D E ae H t 65a delay references tort MN right vl ene SUE ues reeiilsg 50 000 ns 0 00000 g 50 000 ne 10 6 ns d v rapstitiva 4 7 Gigasample second Digitizing Rate HP 545058 545068 54510B8 545128 Timebase Front Panel Reference 4 11 Single shot in Realtime Mode Timebase 4 12 NOTE The HP 54505B 54506B will acquire at 5 00MSa s and will show points 2 ns apart To observe the limitations of single shot in the repetitive acquisition mode e Select the TIMEBASE menu and set time base to 1 ns Press CLEAR DISPLAY and then SINGLE Ten data points from the input
106. ent ficid label and pressing the function key again When the label is highlighted toggle the setting between is not present with the knob HP 54505B 54508B 54510B 54512B Trigger Menu Front Panel Reference 6 21 delay Key edge patt stata ERE tv glitch Ayer 00 c Trigger Menu 6 22 This field selects between two delay options To change between the time and count options rotate the knob until the desired option is displayed in the inverse video field delay time disables the trigger circuit for a selected period of time from 30 ns to 160 ms after the trigger has been qualified Note Time delay is not available in the time qualified pattern settings of when present gt when present lt or range e Press the function key until the highlight is on the first numeric field This field selects the amount of delay after qualification ranging from 30 ns to 160 ms delay count delay by edges disables the trigger circuit for a selected count from 1 to 16 000 000 after the trigger has been qualified After the selected count has been attained the oscilloscope looks for the user specified trigger edge e Press the function key until the highlight is on the first numeric field This field to selects the number of edges to delay after the trigger has been qualified from 1 to 16 000 000 o Press the function key once more to activate the rising edge falling edge option and select the desired edge with the k
107. ents upper threshold lower threshold after fail from 4 edge Figure 11 1 Define Measure Menu HP 54505B 54506B 54510B 54512B Define Measure Menu Front Panel Reference 11 1 The first menu sets the dynamic controls for measurements The second menu sets user defined parameters for the measurements The third menu sets up and initiates the limit test The fourth menu sets up and initiates the measurement comparison test Measurement Selection Define Measure Menu 11 2 Each key in the numeric keypad section has a secondary function Above each key is a measurement selection printed in blue To make an immediate measurement of the displayed waveform perform the following keystrokes e Pressthe blue Shift key on the numeric keypad to access the secondary keys e Press the key that corresponds to the measurement about to be made e Rotate the knob to select the measurement source channel number cf memory number m or function number f The choice made is displayed below the waveform display area e Press the appropriate number to select the source channels 1 or 2 HP 54505B 54510B or channels 1 through 4 HP 54506B 54512B memories 1 through 4 or functions 1 through 4 e Make sure the measurement source is on Upon selection of the measurement the time and voltage markers are placed on the waveform The markers show where the measurement was made if continuous measurements are off To c
108. enuation down to 0 9 attenuation e Below 0 9 the error message Attenuation less than 1 see manual for action is displayed The corrective action is to recalibrate the oscilloscope If the probe is not connected to the DC CALIBRATOR OUTPUT on the rear panel or the probe attenuation exceeds approximately 250 the error message Attenuation too high or bad connection 1s displayed The corrective action is to check the connections and recalibrate If recalibration is unsuccessful refer to the HP 54505B 54506B and HP 54510B 54512B Service Manual e ifthe probe attenuation calibration is successful the displayed message is Probe Attenuation n nnnnn This value has been entered into your channel probe setting Pressing this key selects a channel to calibrate When the channel to be calibrated has been selected press start cal The advisory appears at the bottom of the waveform display area Connect the rear panel DC CALIBRATOR OUTPUT to the probe of channel n then press continue Pressing this key prompts for setup requirements Press this key when all setup requirements have been satisfied The actual calibration process begins This key is used to select the impedance of the probe connected to the channel input This is the only active front panel key during the calibration process The calibration process is terminated with the previous calibration factors intact when this key is pressed HP 545058 54506B8 545108 545128 Front Pa
109. er Modes Edge Trigger Positive or negative edge can be selected for trigger on any channel or on the HP 54505B 54510B external trigger input Pattern Trigger A pattern can be specified using any channel external trigger input Each of the inputs can be specified as a high low or don t care with respect to the level setting in the edge trigger menu The trigger t HP 54505B 545068 54510B 545128 Front Panel Reference General informa can be selected to occur on the last edge to enter the specified pattern or the first edge to exit the specified pattern Time Qualified Pattern Trigger A trigger will occur on the first edge to exit a pattern only if it meets the specified time criteria The available time qualified modes are user specified time is in brackets pattern present lt time e pattern present gt time e range pattern present gt timel and time2 The time settings are adjustable from 20 ns to 160 ms 3 2 ns The time filter recovery time is lt 12 ns In the pattern present lt time mode the pattern must be present for more than 1 75 ns 2 8 ns for the external trigger before the trigger will respond Glitch Trigger Use pattern present lt time with time selected such that it is just less than the nominal pulse width of the signal you are analyzing The minimum glitch width is 1 75 ns 2 8 ns for the external trigger Use Glitch Trigger Mode for glitch widths from 5
110. eration SHOW 3 6 Math function scaling SHOW 3 6 max test voltage Key 12 9 meas Sub menu 11 3 index 6 measure define limit compare Key 11 3 Measure Define 11 4 Measure Limit 11 7 measurement limit test after autoscale 3 5 Measurement Selection 11 2 Measurement Setup A 1 measurements after autoscale 3 5 Memories SHOW 3 6 memory bar 4 5 menu channel 5 1 Menus 3 7 Menus section 3 7 minute Key 12 15 Miscellaneous Test 12 6 month Key 12 14 more Key 7 14 9 6 9 10 more exclude include Key 7 13 more preset probe Key 5 4 multiple menu 10 2 10 4 N ncgative delay 4 3 noise reject Key 6 3 nonvolatile Key 10 2 10 5 nonvolatile memory 10 2 numeric keypad 3 8 O off frame axes grid Key 7 6 7 9 7 12 off on Key 8 2 offset Key 5 2 9 5 9 9 offset level for ECL 5 5 offset level for TTL 5 5 Offset hysteresis trigger cal 12 10 on fail save 11 8 11 12 HP 54505B 54506B 54510B 54512B Front Pane Reference Operating Characteristics B 6 Operating Environment 2 2 B 18 Operator Key 9 4 Options Available B 2 or if Key 11 8 P pan and zoom 4 15 panning 4 17 panning example 4 18 paper length Key 12 3 pattern Key 6 8 Pattern Trigger Exercise 6 10 Peak Measurements 9 20 peak search Key 9 6 Performance Characteristics B 4 Performance Specifications B 3 period A 5 persistence 7 8 persistence after autoscale 3 5 pixel Menu 10 3 positive delay 4 3 p
111. erence 5 1 CHANNEL Key The top key in the channel menu is for channel selection This key toggles between channels 1 2 and external HP 54505B 54510B and channels 1 4 HP 54506B 54512B When a channel is selected highlighted in inverse video it can then be turned on When a channel is turned on the small circle immediately below the channel number is highlighted Note It is possible to have one channel tumed on displayed while being in the vertical control menu of a different active channel When making changes ensure you have the proper channel and function selected and that you are changing the channel you intend to change Vertical sensitivity Key The vertical sensitivity key is the third key from the top in the channel menu However the field itself is not labeled the current volts division is displayed with the units of the current selection When this function is selected either of the entry devices can be used for data entry The range of the vertical sensitivity for the oscilloscope is from 1 mV division to 5 V division Vertical sensitivity changes in a 1 2 5 sequence with the knob When the front panel FINE key is selected fully calibrated vernier adjustments can also be made using direct keypad entry or the knob The current vertical sensitivity is shown at the right of the waveform display when the SHOW key is pressed offset Key Channel Menu 5 2 When offset is selected the trace can be mov
112. es Office Certification Hewlett Packard Company certifies that this product met its published specifications at the time of shipment from the factory Hewlett Packard further certifies that ite calibration measurements are traceable to the United States National Institute of Standards and Technology to the extent allowed by the Institute s calibration facility and to the calibration facilities of other International Standards Organization members HP 54505B 545068 545108 and 545128 Digitizing Oscilloscope Front Panal Reference Manual Publication number 54512 90904 Printed in USA Edition dates are as foliows First edition May 1992 New editions are complete revisions of the manual Update packages which are issued between editions contain additional and replacement pages to be merged into the manual by you The dates on the title page change only when amp new edition is published A software or firmware code may be printed before the date This code indicates the version level of the software or firmware of this product at the time the manual or update was issued Many product updates do not require manual changes and conversely manual corrections may be done without accompanying product changes Therefore do not expect a one to one correspondence between product updates and manual updates edition and of any change pages to that edition Al pages original edition Your comments assis
113. et the pattern to HLX HP 54505B 54510B or HXLX HP 54506B 54512B as follows Press the function key until the first character is highlighted Turn the knob until the highlighted area is H Select the next character in the pattern Continue until all characters are selected in the pattern Press the when key until entered is selected e 58 606 9 Ag running remota 50 000 ns 0 00000 s 50 000 ns 10 0 ns div repetitive Figure 6 6 HXLX when entered Pattern Trigger Menu HP 545058 54506B 54510B 545128 6 12 Front Panel Reference Channel 1 is displayed in the top screen To satisfy the conditions of the bit pattern channel 1 must be high higher than the channel 1 trigger level or greater than 200 mV When the signal on channel 1 goes higher than 200 mV and channel 2 or 3 is still low less than 200 mV the pattern conditions have been satisfied as the signal is entering the trigger conditions and the oscilloscope triggers e Press the when key and change the condition to when exited The oscilloscope triggers on the first transition that makes the bit pattern false in this case when channel 2 or 3 goes high g running PATTERN TRIGGER reeote 50 900 ns 0 0C000 S 50 000 ns 10 90 ns div repetitive heidoff Figure 6 7 HXLX when exited Pattern e Change the bit pattern to HHX HP 54505B 54510B or HXHX HP 54506B 54512B and select the entered condition HP 54505B 54506B 54510B 54512B Trigger
114. evels or generating manually on the screen using the cursor The mask menu is comprised of the following three submenus e main mask menu automask menu e maskeditor menu MASK rob REFER TO FIGURE 10 1 MASK MENU mark point connect points source memory clear points automask l mit mask honz van LIT Figure 10 2 Mask Menu main mask reference wim Key Waveform Save Menu 10 6 This menu is displayed when mask is selected from the waveform save menu The mask main menu allows viewing of the reference waveforms or selection of the automask and mask editor submenus The reference wfm key is used to view the waveform that was used to automatically generate the upper and lower limit masks during automask refl displays the waveform used to generate the masks in memory pair m1 and m2 and ref2 displays the waveform used to generate the masks in memory pair m3 and m4 Off clears the display of reference waveforms HP 84505B 54506B 545108 54512B Front Panel Reference automask Key Press to display the automask submenu mask editor Key Press to display the mask editor submenu Automask Menu The Automask submenu contains the selections used to generate upper and lower limit masks at defined tolerances using data from a selected source Masks are generated and stored in waveform memory pairs mi m2 or m3 m4 AUTOMASK sutomask copy scaling Sour Ce RERmOT y main mask asenu
115. ey Ee Ls cepe mu aid S Ee ds qe 12 6 Probe CAL Men cce dk FACER ea RR EROR RC dae ead ia 12 7 attenuation submenu 00 cee cece cen rer 12 8 AA A EDAD 12 8 Start cab Resina barra 12 8 continue Key is tds ad 12 8 channel impedance Key A 12 8 ADOR KON dad tia 12 8 EXC MEM KEY latina 12 8 tax test voltage Key cid onide nE it 12 9 tme null SUDMENN os vernal ei eww ee bad e Cede xd Akt 12 9 channel Key bccn cha cena Dep E RR RR Wai ak Rae 12 9 Hie A E 12 9 SCIE CaL ot 2 ae 12 10 Cab SCICCE REY ou cdi het ore Aa ee aa aeRO ees 12 10 A A Nc 12 11 Slane cat Key iaa wenn sages AA 12 11 CONUBUC Key oos dro ews BIDRPM deen VN 12 11 primb Cals Key ou i dac ya piu ia av UIN SU did 12 11 nap tq D 12 11 au memi Key ordei caedi bes kde a dossiers 12 11 SERE MERO irene cma Ua a e ab A de 12 12 System Me iia 12 13 Gale SODOM ioa te Saad ae Duda bla aca cR 12 14 set date ROY aaa DORT Jase dite ead Rate 12 14 VEAP INE easi E as e E DES pie we were date m 12 14 MORIA Ke Momm 12 14 Gay Rey ETT 12 14 EXIEIDOBU KEY 25425 dic arse taiwssa caiwks a aepeaboa sad 12 14 Lie SIDE Ss 12 15 set hune O AA ee vee pod AX RRSEOEEYP TA 12 15 Bolt CY it or NU Er R keane antowan Cle 12 15 minute Keri ind 12 15 ECONO NE ada atras tue feles ad 12 15 cnr menu Key corr A a vix 12 15 HP 54505B 545068B 54510B 54512B Contents 9 Front Panel Reference Appendix A codici A EE A EO 12 16 AC BNC KOV o ate Geng atta das 12 16 registration form print
116. f With continuous measurements off the voltage y and time x markers are placed on the waveform to indicate where the last measurement was taken Measurement Statistics The maximum minimum average and most recent of continuously updated measurements are calculated and displayed Any three measurements can be selected for simultaneous display Measurement Limit Test Maximum and minimum limits can be set for any three of the front panel automatic measurements These continuously updated measurements are compared to the maximum and minimum limits If the measurements are found to be outside the defined limits the waveform can be stored in a memory or the screen can be sent to a hardcopy device In addition the HP IB Service Request line can be set to flag the controller Measurement limit test can be set to stop after test limits have been exceeded or to continue testing HP 545058 54506B 54510B 545128 Front Panel Reference Setup Aids Autoscale Pressing the Autoscale button automatically adjusts the vertical and horizontal deflection factors and the trigger level for a display appropriate to the signals applied to the inputs The Autoscale feature requires a signal with a duty cycle greater than 0 5 and a frequency greater than 50 Hz Autoscale is operative only for relatively stable input signals Save Recall Nine front panel setups 1 9 may be saved in non volatile memory Recall Clear Pressing the RECALL key followed by
117. failure data to the peripheral device Hardcopy will be aborted if a device is not properly connected e Asaveto off turns off the save function and no save is affected after fail Key Thc test can be stopped when a failure occurs or it can be continued Refer to saving multiple and nonvolatile memory for additional information HP 54505B 54506B 54510B 54512B Define Measure Menu Front Panel Reference 11 9 Compare Submenu DEFINE MEAS on fail save fter fail Soca continue test Key Define Measure Menu 11 10 The compare mode allows a point by point comparison of an input channel to a memory pair m1 and m2 or m3 and m4 The result is a displayed PASS or FAIL message The menu allows the choice of input channel and memory pair to be compared A failure allowance value can be entered to give the effect of trace separation where needed On failure the menu allows for storage of the data with a stop continue option When the compare test is on each point of the of the input channel is compared against the memory pair The channel and the memories must have valid data stored in them and must be on Holes are ignored during the test If the input channel waveform point falls within the mask memory pair the test will PASS If the channel waveform falls outside the memory pair the point is tested against the allowance value with a resulting PASS or FAIL If the test fails a failbar will be displayed abo
118. finite persistence mode displays all segments where all the included segments from the selected source are displayed at one time Selecting an excluded segment causes segment X is excluded to be displayed NOTE Measurements performed in infinite persistence mode are made on a last hit bases HP 54505B 54506B 545108 54512B Display Menu Front Panel Reference 7 11 source Key of screens Key off frame axes grid Display Menu 7 12 Key avg The average mode averages each captured segment into a composite waveform Only segments selected as include using the exclude include key arc averaged When avg is selected the segment number currently being averaged is displayed in the lower left corner of the screen and the of segments key is activated The of segments key displays the total number of segments that were averaged env The envelope mode displays the minimum and maximum voltages in each captured segment Only segments selected as include using the exclude include key are used When env is selected the segment number currently being evaluated is displayed in the lower left corner of the screen and the of segments key displays the total number of segments that were used For all the display modes the ef segments key displays the following messages e no segments displayed when there are no previously captured segments for the selected source e Channel off displayed when the source currently sel
119. finitely volatile display OFT add to memory volatile This is the memory select key The alternatives are pixel memory 1 or 2 Key The pixel memories are complete pixel saves of the waveform area excluding the graticule and markers in volatile memory The waveform display area is 256 by 451 pixels HP 54505B 54506B 54510B 54512B Waveform Save Menu Front Panel Reference 10 3 display Key clear memory Key add to memory Key In pixel memory the entire screen is saved Therefore data is mapped directly onto the display and displayed in half bright There are no measurement capabilities on pixel memories Pixel memories are additive When all pixels are full adding to memory will overwrite the existing data This key toggles the selected pixel memories on or off This key purges all data from the selected pixel memory Pressing this key adds the currently displayed waveforms to the specified pixel memory multiple Menu WAVEFORM SAVE pixel e i K a failure Y ND FAILURES View failures store failure protect dott Waveform Save Menu 10 4 The multiple submenu selects one of the 665 possible volatile failure memories These are the memories where failure data from both the limit and waveform comparison tests can be saved Failure data stored in volatile multiple memories can be viewed and or transferred to nonvolatile memories mi m4 The multiple memories store 50
120. function key toggles both sets of markers on and off When set to on all markers are displayed on the waveform The current x y marker position and source delta x y information and 1 delta x information also appears in the factors display area The delta entries are calculated as follows marker marker 1 delta If delta is negative marker 1 is located at a more positive level or previous time than marker 2 If all delta information is full of dashes then one of the sources currently selected is not on This key selects the source for the x1 and yi markers Available sources for marker measurements include all channels functions and nonvolatile waveform memories Pressing the key and use the knob to select the desired source If the currently selected source is not on Source Off is displayed in the factors display area and all delta x y information is filled with dashes This key selects the x1 marker as the marker being positioned When selected the field is highlighted and the xlmarker is moved using the knob The xImarker is placed on the display respective of the trigger point Positive time values are to the right of the trigger point and negative time values are to the left Measurement information is displayed in the highlighted field and in the factors area of the waveform display Displays seconds in all modes except FFT where the display units are in Hz ximarker is the vertical marker with longer das
121. gh confidence level of instrument functionality UTILITY seiftest menu ram rom acq misc loop test all ioops HP IB keyboard crt test atig hirig A D mebase D A system nonvol protect display acq system nonvol rm vrem o e siart tos lost ail ie exit menu Figure 12 3 Self Test Menu HP 54505B8 54506B 54510B 54512B Front Panel Reference If the instrument fails any self test perform the following e Recalibrate the oscilloscope e If that does not fix the problem refer to the HP 54505B 54506B and HP 54510B 54512B Service Manual The oscilloscope self diagnostics and self tests are designed to run Operational tests on the following e RAM e ROM e Acquisition e Miscellaneous e Loop for service testing regote listen HP 545058 545068 54510B 545128 Front Panel Reference PASSED PASSED PASSED PASSED PASSED PASSED PASSED PASSED PASSED PASSED PASSED PASSED Displey RAN Systos RAN Non Votatile RAN Protected Non Votatiie RAN Systems RON HP IB Acquisition RAM Logic Trigger Analog Trigger Tigebese D A Converter A D Conver ter Figure 12 4 Results of Selftest ELFTEST MENU ES rom acg J nonvol start test test ai i exit menu Utility Menu 12 5 ram Test rom Test acquisition Test Miscellaneous Test loop Test start test Key test all Key exit menu Key Utility Menu 12 6 The RAM test is a multiple se
122. hannel 2 or 3 is still low less than 200 mV the pattern conditions have been satisfied the oscilloscopes triggers e Change the bit pattern to 4 LX HP 54505B 54510B or XLX HP 54506B 54512B and select the is not present condition To satisfy this bit condition the clock channel must go low while channel 2 or 3 is high The oscilloscope triggers on the falling edge of channel 1 when the L on channel 2 or 3 is not present for example channel 2 or 3 is high 4p running remote is present 96 000 AS 0 00000 Ss 50 000 ns 10 0 ns div repetitive Figure 6 12 Channel 1 Clock XLX State HP 54505B 54506B 54510B 54512B Trigger Menu Front Panel Reference 6 19 Delay Trigger The delay trigger mode qualifies on a signal edge pattern or state delays Mode for a period of time or occurrence of edges and then triggers on a selected edge from any source This trigger mode is versatile and accommodates most complex triggering situations It has the flexibility to select different trigger sources delay times delay counts and then display various points of the waveform DELAY TRIGGER H X X X when entered 12 3 4 clock XE b is present EE deley RETE 30 00 ns irigge r on Figure 6 13 Delay Trigger Menu qualify on Key The qualify on key selects which mode to qualify the trigger before a delay is defined The qualify options are e edge e pattern e state Trigger Menu
123. he center frequency key allows centering of the frequency record to the desired frequency when horizontal magnify is on Waveform Math Menu 9 7 of points Key Waveform Math Menu 9 8 The number of points key assigns the number of data points to be used for the FFT computation The number of points affects the computation speed frequency resolution and the noise floor The F frequency resolution of an FFT is where Fs Is the sampling frequency and N is the number of points The maximum signal to noise ratio of an FFT is related to both the A D converter bits of resolution and the number of points An FFT performed on a small number of points can be computed faster An FFT performed on a large number of points has better frequency resolution and a lower noise floor The resolution affects how accurately frequencies can be measured and how well two frequencies that are close together can be resolved If the oscilloscope is in repetitive mode or the operand is a memory that was stored from the repetitive mode the number of points defaults to 512 and cannot be changed When the operand is a repetitive source on screen data is used for the FFT When the operand is realtime the FFT is performed on data in the 8K record but not necessarily the data that is displayed on the screen The points used from the record are selected based on the TIME BASE reference setting of left center or right When the TIME BASE reference is set to
124. he screen Press to enter the currently selected hour minute and second Current time is displayed by the fifth key Press to highlight current hour then use keypad or knob to enter the new value in 24 hour format Press to highlight current minute then use keypad or knob to enter the new value Press to highlight current day then use keypad or knob to enter the new value This key returns to the System menu HP 54505B 54506B 54510B 54512B Utility Menu Front Panei Reference 12 15 clicker Key AC BNC Key registration form print Key interpolation Key exit menu Key The clicker key turns on the clicker function When the clicker is turned on an audible click is heard each time a key is pressed The selections are either on or off The AC BNC key selects the output for the rear panel BNC and front panel probe compensation terminals The probe compensation signal is a square wave of approximately 500 Hz available on both the front and rear When trigger out is selected the rear panel BNC is a trigger output and nothing is present at the front panel Pressing this key causes a registration form to be printed on an externally connected hardcopy device Please fill out and send in form When in realtime sampling with time ranges of lt SOns div data is normally routed through an interpolation filter to create additional points These points fill in data buckets between the real acquired points Select inter
125. he two most common tv standards 60 Hz 525 lines or NTSC is the standard used in the United States 50 Hz 625 lines is the standard used in most European countries This trigger menu also allows for user defined tv signals that may be used in other parts of the world Mode To move the highlighted inverse video window within a field you must press the selection key and to change the value displayed in the window you must rotate the knob Note Pay close attention to the movement of the highlighted window it moves to various options within the field TV TRIGGER 60 Hz S25 lines source 1 user defined source 1 level polarity Lar level qualify on low gt 50 000 ns line trigger on holdoff hoidoff tine CURRIES figure 6 18 TV Trigger Menu HP 54505B 54506B 54510B 54512B Trigger Menu Front Panel Reference 6 27 Standard Select Key The source key chooses between the NTSC standard tv signal used in the Source Select Key level polarity Key field Key line Key Trigger Menu 6 28 United States with a 60 Hz and 525 lines per frame the standard of 50 Hz and 625 lines per frame used in most countries in Europe The third option is for user defined ranges of the tv signal User defined ranges can be used to trigger on any of the proposed HDTV standards To make the desired selection e Press the selection key and select the standard by rotating the knob
126. hes and is marked on the top of the display as xi HP 54505B 54506B 54510B 54512B Front Panel Reference yi position Key This key selects the y1 marker as the marker being positioned When selected the field is highlighted and the ylmarker is moved using the knob Typically place the yimarker at the desired level on the waveform display and read the level in the highlighted field and in the factors area of the waveform display Displays volts in all mode except FFT where the display units are in dBm yimarker is the horizontal marker with longer dashes and is marked on the left side of the display as yl Note The x ymarkers can be moved on a selected source even though that source is not displayed Make sure that the markers are assigned to the proper source to be measured or the numeric field may be incorrect source x2 y2 Key Operation is identical to source x1 y1 key except source is specified for the x2 and y2 markers x2 position Key Operation is identical to x1 position key except x2 marker is the vertical marker with shorter dashes and is marked on the bottom of the display as de A y2 position Key Operation is identical to yl position key except y2 marker is the horizontal marker with shorter dashes and is marked on the right side of the display as y2 HP 54505B 54506B 54510B 54512B Marker Menu Front Panel Reference 8 3 introduction to the Functions The WAVEFORM MATH menu defines one
127. highlighted in inverse video noise reject Key Turn noise reject on for triggering on noisy signals without the problem of false triggering hoidoff Key Pressing the holdoff key assigns the entry devices to control holdoff Hoidoff disables the trigger circuit for a selectable time period or number of events after the trigger event Holdoff is selected in 20 ns time increments from 40 ns to 320 ms or in number of events from 2 to 16 000 000 Time and event are toggled with the knob Events are number of patterns patrn state state or edge and tv edge HP 54505B 54506B 54510B 54512B Trigger Menu Front Panel Reference 6 3 Edge Trigger This exercise sets up the oscilloscope and a signal generator to view some with Holdoff of the features of the edge trigger Holdoff is used to gain a stable trigger While this technique is not necessary for most applications and waveforms it is useful for many non recurring and irregular waveforms Exercise instrument Setup Follow the instructions for setting up the signal generator The signal for this exercise is a burst pattern with two positive cycles that repeats every 54s Use an HP 8116A Pulse Function Generator with the burst option or a signal generator capable of the same signal Make the following settings MODE LBUR RPT 5 00 us BUR 2 FRO 1 MHz DTY 50 AMP 1V OFS 200 mV OUTPUT square wave 6 9 6 96 O Trigger Menu HP 54505B 54506B 54510B 545128 6 4 F
128. igure 9 4 Dual Screen w Function On Waveform Math Menu HP 54505B 54506B 54510B 54512B 9 14 Front Panei Reference e Inthe four screen mode each channel function is displayed in the corresponding portion of the display as shown in figure 9 5 pe Try T rry T T TT 17177 7 j T t T1 or Chan Func 1 Viewing Area ao Chan Func 2 Viewing Area f Chan 3 on 54506B 54512B only i C E Func 4 Viewing Area all Figure 9 5 Four Screen w Function On Waveform Math inthis exercise the WAVEFORM MATH menu is used to subtract one Exercise waveform from another instrument Setup Set up an HP 8116A or a signal generator capable of a 1 MHz 1 volt squarewave as follows e MODE NORM o FRO 1 MHz e DTY 50 AMP 1 00 Y e OFS 0 00 V e Set the generator for a square wave signal Connect the signal to a BNC tee on channel 1 using a 1 meter coaxial cable Connect another 1 meter cable from the other side of the BNC tee and terminate in 50 22 to channel 2 HP 54505B 54510B or channel 3 HP 54506B 54512B HP 545058 54506B 54510B 54512B Waveform Math Menu Fromt Panel Reference 9 15 Oscilloscope The extra cable length between channels provides a time delay between setup the signals on the oscilloscope The propagation of a 1 meter coaxial cable is approximately 6 to 7 ns This delay is used to demonstrate the math function The following procedure assists in setting up the oscilloscope for optimal viewing
129. ing but not limited to the implied warranties or merchamtability and fitness for a particular purpose Hewlett Packard shail not be liable for errors contained herein or for incidental or consequential damages in connection with the SALCLY This apparatus has been designed and tested in accordance with LEC Publication 348 Safety Requirements for Measuring Apparatus and has been supplied in a safe condition This is a Safety Class I instrument provided with terminal for protective earthing Before applying power verify that the correct safety precautions are taken see the following warnings In addition note the external markings on the instrument that are described under Safety Symbols Warning e Before turning on the instrument you must connect the protective earth terminal of the instrument to the protective conductor of the mains power cord The mains plug shall only be inserted in a socket outlet w Service Instrucuons are for trained service personnel To avoid dangerous electric shock do not perform any service unless qualified to do so Do not attempt internal service or adjustment uniess another person capable of rendering first aid and resuscitation is present e If you energize this instrument by an auto transformer for voitage reduction make sure the common terminal is connected to the earth terminai of the power source 9 Whenever it is likely that the ground protection is
130. ing markers limit mask Key This key is used to select the active limit mask for the mask editor menu functions Limit masks are stored in pairs where m1 or m3 contains the upper limit mask and m2 or m4 contains the lower limit mask horiz vert Key These keys are used to change the horizontal and vertical field values and the position of the x2 y2 markers on the screen during mask edits Acceptable vertical settings are from 0 y2 bottom of screen to 255 y2 top of screen Acceptable horizontal settings are from 0 x2 2 left of screen to 500 x2 right of screen Press key until desired parameter is highlighted then use knob or keypad to enter new value and move the marker When horiz is selected the vertical y2marker and field is slaved to the horizontal x2marker and field As the x2marker is changed the y2marker follows the displayed active limit mask and updates the data values at each location If the mask has a hole present the y2marker and field will not be changed NOTE x1 y1 markers can only be moved when the mark point key is pressed clear mask Key Pressing this key replaces the entire active limit mask with holes blanks the screen main mask menu Key Press key to return to the Main Mask Menu HP 545058 545068 54510B 54512B Waveform Save Menu Front Panel Reference 10 11 Waveform Save Exercise Waveform Save Menu 10 12 This exercise demonstrates how a waveform is stored the offset se
131. ion increases as the number of time record samples increases At the maximum time record length of 8192 points magnification reduces the displayed frequency span to about 12 of that in the unmagnified display Horizontal magnification allows you to zero in on and expand desired portions of the frequency domain display le freq signal fre F 4 Sample freq signal freq requency Accuracy 2 x 8192 20000 Window Characteristics Window Highest 3d8 6dB Scallop Loss Side Lobe Bandwidth Bandwidth dB dB bins bins Rectangular 13 0 89 1 21 3 92 Hanning 32 1 44 2 00 1 42 Flattop 70 3 38 4 17 0 005 HP 545058 54506B 54510B 545128 General Information Front Pane Reference 6 23 Split display operation A time domain waveform and its FFT spectrum can be displayed simultaneously on the top and bottom halves of the screen Four FFT spectra can be displayed simultaneously in the same way Four sets of time domain waveforms and their spectra may also be displayed simultaneously spectrum Displays Amplitude Power in dBm Signal to noise Ratio 55 to 65 dB typical Noise floor can be reduced by increasing the number of points in the FFT Log Display Both sensitivity and offset position can be set by the user Sensitivity Range 1 dBm div to 100 dBm div Offset Range 200 dBm to 200 dBm Programmability AH front panel controls are fully programmable over HP IB General information HP 545053 54506B 54510B 54512B B 24
132. kes settings so the oscilloscope can talk to peripheral devices This interface includes two primary settings e Talk only mode HP IB e Addressed mode taik only eddressed UTILITY HP IB menu talk only time out form feed paper length device mode print piot H pert Figure 12 2 HP IB Menu talk only mode Set the oscilloscope to talk only to perform a hardcopy without intervention from an external controller The attached printer or plotter must be set in the listen only or listen always mode The amount of time that the oscilloscope will attempt to talk to the external device time out can be selected while the instrument is in the talk mode The range of available time out is 0 through 16 000 000 seconds addressed mode This mode selectively addresses the oscilloscope for talking or listening The address of the oscilloscope can be selected while the instrument is in the addressed mode The range of available addresses is 0 through 30 Utility Menu HP 54505B 54506B 54510B 54512B 12 2 Front Panel Reference form feed Key paper length Key device mode Key exit menu 345 10W25 If the form feed option is on the printer performs a form feed at the end of the hardcopy If form feed is off the page is scrolled up four lines when the hardcopy is complete Thus key selects between 11 inch or 12 inch pagelengths for auto form feed The 11 inch page is a U S standard and the 12 inch page a U K and E
133. ks from peak number 1 up to peak number 99 Frequency and dBm are automatically displayed at the bottom of the screen together with the difference in frequency between the two selected peaks Peak search saves time by eliminating the need to manually set cursors FFTs can be executed on any of the oscilloscope input channels or on waveforms stored in any of four nonvolatile memories Sensitivity and vertical offset position are controlled from the front panel to display an optimum view of the spectrum Sensitivity is calibrated in dB per division vertical offset is calibrated in dBm Time record length can be set from 512 points to 8192 points in powers of 2 Increasing time record length improves frequency resolution at the expense of update speed The horizontal magnification feature allows you to set the center of the display to a frequency of interest The display is magnified about that point so that you get a closer view HP 54505B 54506B 54510B 54512B General Information Front Panel Reference B 21 Selectable Windows Three windows are selectable hanning for best frequency resolution and FFT Operating Characteristics General information B 22 general purpose use flattop for best amplitude accuracy and rectangular for single shot signals such as transients and signals where there are an integral number of cycles in the time record Vertical Analog System Number of Channels 2 simultaneous acquisition plus ex
134. l pay shipping charges to return the product to the Buyer However the Buyer shall pay all shipping charges duties and taxes for products returned to Hewlett Packard from amp nother country Hewlett Packard warrants that its software snd firmware designated by Hewiett Packard for use with amp n instrument will execute ita programming instructions when properly instalied on that instrument Hewlett Packard does not warrant that the operation of the instrument software or firmware will be uninterrupted or error free Limitation of Warranty The foregoing warranty shall not apply to defects resulting from improper or inadequate maintenance by the Buyer Buyer supplled software or interfacing unauthorized modification or misuse operation outside of the environmental specifications for the product or improper site preparation or maintenance No other warranty is expressed or implied warranties or merchantability amp nd fitness for a particular purpose Exclusive Remedies The remedies provided herein are the buyer s sole and exclusive remedies Hewlett Packard shall not be liable for any direct indirect special incidental or consequential damages whether based on contract tort or any other legal theory Assistance Product maintenance agreements and other customer assistance agreements are availabie for Hewlett Packard products For any assistance contact your nearest Hewlett Packard Sal
135. lay cal e time null cal e logic trigger cal cal select channel i continue abort exit menu Figure 12 6 Self Cal Menu This field selects which of the calibration processes to perform The cal select key and the highlighted window increments through 0 3 and the active field in the display changes to correspond with the selection See Calibration procedure in this chapter Note Ali calibrations must be performed in the order given e g Cal 0 must pass before CAL1 can be performed successfully etc HP 545058 54506B 54510B 54512B Front Panel Reference channel Key start cal Key continue Key print cals Key abort Key exit menu Key The channel key selects the channel s to calibrate Available choices are dependent on the current cal select key When the channel to calibrate is selected and the specific cal routine is selected press the start cal key and follow the instructions displayed if the cal ram is write protected when start cal is selected an error message ts displayed When all of the setup requirements are satisfied press the continue key and the actual calibration process begins The print cals key sends a complete listing of the most recent self calibration factors to a printer if connected to the oscilloscope Refer to the service manual for more information on self calibration and calibration factors This is the only active front panel key during the calibr
136. lear measurements press Shift CLR MEAS For complete details of the measurement definitions and algorithms see Appendix A Algorithms HP 54505B 54506B 54510B 54512B Front Panel Reference measure define This key is the primary submenu selection key Press to select one of the limit compa re available submenus This field is always the top selection so other Key submenus may be selected at any time meas Submenu The measure submenu is the default condition Continuous and statistics options are accessed from this submenu statistics 54510937 continuous Key If this option is turned on when a measurement selection is made the displayed measurement is updated periodically All subsequent measurements are continuously updated when selected When continuous 1s off the measurement is made once and the At AV x y markers are placed on that measurement showing where the mcasurement was made statistics Key The continuous function must be on before the statistics key is available When continuous is on statistics display the minimum maximum average and current values on up to three measurements rms Key Select either ac or dc rms voltage with the rms key The ac rms voltage of the first cycle of the displayed signal is measured when ac is selected The true rms voltage of the first cycle of the displayed signal is measured when dc is selected See Appendix A Algorithms for the formulas used to calculat
137. lection field The options are e display e acquisition e system e unprotected nonvolatile memory Two ROM tests are available e system e protected nonvolatile memory Five acquisition tests are available e atrig e ltrig e A D e time base e D A Three miscellaneous tests are available e HP IB e keyboard e crt fest The loop test is a function designed for use by qualified service personnel It is unnecessary to use this function for normal oscilloscope operation When a self test loop has been initiated it runs until stopped by pressing and holding any key Pressing this key begins the selected test This key runs all tests in sequence Pressing this key returns the Utility menu to the screen HP 54505B 54506B 54510B 54512B Front Panel Reference PROBE CAL Two probe calibration procedures are available in the probe cal menu attenuation e time null 1 channel Start cai channel imped abori max test voltage Figure 12 5 Probe Cal Menu HP 54505B 54506B 54510B 54512B Utility Menu Front Panel Reference 12 7 attenuation submenu PROBE CAL MENU 3ttemuatron channel continue channel imped est voltage PEE ES EE Nie Sek channel Key start cal Key continue Key channel impedance Key abort Key Utility Menu 12 8 The attenuation submenu calibrates channel gain at the probe tip Channel gain can be corrected through probe att
138. ll changes kcy The waveform will be reconstructed and displayed using the average of segments 5 through 10 ho stopped Topolik listen fron seg Chennel 1 ta sag Bex i 19 mter changes execule eit changes 50 000 ns 0 90006 6 50 0006 ns 0 0 ns div reaitise Segrenis Curreniiu included 5 10 pore Figure 7 7 Sequential Single Shot Display Example HP 54505B 54506B 54510B 54512B Display Menu Front Panel Reference 7 15 introduction to the Markers MARKER MENU off MES source xi ul yi position ree x2 y2 hammer T ud EM 4 i x2 POS on TC Wee Ee TUE TX WEST u2 posit INE uM asp os Co MOERS OE This chapter describes how to use the markers and make manual mcasurements on displayed waveforms In this menu two sets of x and y axis markers are provided each with a separately selectabie source The x markers vertical measure voltage or power in FFT mode and the ymarkers horizontal measure time or frequency in FFT mode for the currently selected source Each marker is individually controlled and labeled MARKER MENU source x1 yi Xi position i y position source x2 y2 x2 position y2 position Figure 8 1 Marker Menu HP 545058 545068 54510B 54512B Marker Menu Front Panel Reference 8 1 off on Key source x1 y1 Key x1 position Key Marker Menu 8 2 This
139. meter coaxial cable Oscilloscope The following procedure assists in setting up the signal on the Setup oscilloscope for optimal viewing e Press AUTOSCALE e Set the mode io real timc in the TIMEBASE MENU e Press DISPLAY and turn connect the dots on e Select the CHANNEL MENU and set volts per division for a fuil scale but not clipped display Use the vernier of the pulse generator if necessary to set the signal to full scale as in figure 9 7 The oscilloscope cannot compute a correct FFT from a clipped signal Note el and if the signal is too small there may be errors due to noise e Turn CHANNEL 1 off The screen will be blank with channel 1 turned off HP 54505B 54506B 54510B 54512B Waveform Math Menu Front Panel Heference 9 17 hp running DISPLAY reasie telk P eee MN A reait ae persistence 1 E infinito i 4 e of screens m 2 1 1 i pote y 5 d 7 A ortek e yae i B ia ks connect dots Hi CU tni T 50 000 ns 0 0000 s X S0 000 ns 10 0 ns d iv reaitino Figure 9 7 Maximum Vertical Signal Setup e Press WFORM MATH to define the function Select f2 and turn the display on Select the fft operator and chan 1 operand The FFT is plotted on the display as in figure 9 8 Range shown in the following figures 0 Hz to 500 MHz is for the HP 54510B 54512B The HP 54505B 54506B range is OHz to 250M Fiz with a slower sample rate Note iud Ap running MA
140. min A 5 volatile Key 10 3 voltage selector module 2 3 Vp p A 5 Vrms A 6 Vrms ac A 6 Vrms dc A 6 Vtop A 6 index 9 Waveform Math Operating Characteristics B 12 zooming 4 15 Waveform Math Exercise 9 15 9 17 zooming example 4 15 waveform math functions autoscaled 3 5 Waveform Math Menu 9 1 waveform Menu 10 2 Waveform Save operating characteristics B 13 Waveform Save Exercise 10 12 Waveform Save Menu 10 1 waveform pixel multiple mask Key 10 2 waveform pixel memory display after autoscale 3 5 Weight B 20 when entered 6 9 when exited 6 10 when Key pattern trigger mode 6 9 when Key state trigger mode 6 15 when present 6 10 when present Key 6 34 width Key 6 34 window Key 9 9 x x1 position Key 8 2 x2 position Key 8 3 Y year Key 12 14 yl position Key 8 2 y2 position Key 8 3 index 10 HP 54505B 54506B 54510B 54512B Front Panei Reference product has a warranty against defects in material and workmanship for a period of three years from date of shipment During the warranty period Hewlett Packard Company will at its option either repair or replace products that prove to be defective For warranty service or repair this product must be returned to a service facility designated by Hewlett Packard For products returned to Hewlett Packard for warranty service the Buyer shall prepay shipping charges to Hewlett Packard and Hewlett Packard shal
141. n charge even if the instrument The Caution sign denotes a Only fuses with the is disconnected from its hazard It calls attention to required rated current source of suppiy an operating procedure voltage and specified type se caution when practice or the like which if normal blow time delay exposing or handling the not correctly performed or etc should be used Do not CRT Handling or replacing adhered to could result in use repaired fuses or the CRT shall be done only damage to or destruction of short circuited fuseholders by qualified maintenance part or ali of the product Do To do so could cause a personnel not proceed beyond a shock of fire hazard Caution symbol until the indicated conditions are fully understood or met Hewlett Packard P O Box 2197 1900 Garden of the Gods Road Colorado Springs CO 80901 P roduct Limitation of Warranty This Hewlett Packard product has a warranty against defects in material and workmanship for a period of three years from date of shipment During warranty period Hewlett Packard Company wiil at its option either repair or replace products that prove to be defective For warranty service or repair this product must be returned to a service facility designated by Hewlett Packard However warranty service for products installed by Hewlett Packard and certain other products designated by Hewlett Packard will be performed at the Buyer s facility at no charge within the
142. n at DC 4 Set the number of points to 8192 or as high as possible if computation time is a consideration The frequency accuracy is the sum of two terms The first term is because there arc a limited number of frequency bins The measurement is accurate to plus or minus half a bin The second term is related to the accuracy of the internal oscillator which generates the sample clock it accuracy signal frequen 20000 eser resolution gnal frequ 2 gt sample frequency signal frequ signal frequen 2X number of points 20000 _ ume spn Signal frequ 2 signal frequen number of points 20000 The vertical units of the FFT functions are dBm 0 dBm is defined to a be 1 milliwatt signal The formula for converting a signal of power P into dBm is dBm 10log p A handier formula and the one which is used in the instrument is one for calculating dBm from the peak voltage y Pie eee iras HP 545058 54506B 545108 54512B Waveform Math Menu Front Panel Reference 9 11 Computation of dBY DC Value Aliasing Waveform Math Menu 9 12 The bottom term 0 316228 Volts is the peak voltage of a 1 milliwatt signal into a 50 ohm resistor The calculation is shown below pus Vrms V PxR P 070107 0 707107 VimWx 50ohms 0 707107 0 316228Volts If the power of a signal is being measured then the source should be terminated into 50 ohms in order to get the correct dBm reading However if v
143. n each function It increments decrements or toggles the selection in the active field or function The current selection is displayed in full bright in the displayed menu area FINE Key The FINE key changes the increment and decrement sequence Instead of sequencing in the normal sequence the values increment decrement in more precise values Use this feature when the normal sequence is too coarse for precision measurements or settings When the oscilloscope is operating in the fine mode the word fine is displayed in the lower right corner of the CRT Probe Two terminal studs provide a 500 Hz square wave used for probe Terminals compensation Signal is present when AC BNC probe comp is selected in the Uulity Menu See Chapter 12 Utility Menu for more information input The input section consists of connectors for signal input Channel inputs 1 and 2 HP 54505B 54510B or 1 through 4 HP 54506B 54512B select 1 MQ or 50 Q input impedances Each is shunted by approximately 7 pF at the input BNC with a maximum input voltage of 250 V gt 50 mV div range See Appendix B General Information for specifications on the input channels HP 54505B 54506B 54510B 54512B Front Panel Overview _ Front Panel Reference 3 9 Line Switch The line switch is located on the front panel Turn on the oscilloscope by pressing the switch in The green LED illuminates when the oscilloscope is set to on The push switch position is labeled
144. n is used to qualify a clock edge as a trigger State triggering extends the logic triggering capability of the oscilloscope by selecting one of the inputs as a clock and using the other inputs as qualifiers This is useful when it is necessary to synchronize the display with a system clock to detect a system state For example consider a synchronous memory bus The state trigger mode enables only those events that occur when reading from a block of memory to be captured and displayed To perform the following exercise use an HP 8116A Pulse Signal generator or another signal generator capable of the same 1 MHz 1 volt square wave HP 54505B 54506B 54510B 54512B Front Panel Reference Set up the HP 8116A as follows Mode NORM e FRO 100 MHz e DTY 50 e AMP 1 00 V e OFS 200 mV e Set the generator for a square wave signal Connect the signal to a BNC tee on channel 1 using a 1 meter coaxial cable Connect another 1 meter cable from the other side of the BNC tee to channel 2 HP 54505B 54510B or channel 3 HP 54506B 54512B Oscilloscope Setup The extra cable length between channels provides a time delay between the signals displayed on the oscilloscope The propagation of a 1 meter coaxial cable is approximately 6 to 7 ns This time delay demonstrates the oscilloscope s triggering capability e Press AUTOSCALE Set up the oscilloscope as follows e Time base 10 00 ns div delay 0 00 s reference cntr
145. n the vertical interval The pretrigger data that is being viewed left half of the screen is field 2 lines 256 262 tV TRIGGER hp runn ng edge potters state det cyE Lv source 1 500 000 us 0 00000 s 300 000 us 100 us div repetitive 545 1007 Figure 6 19 Trigger at Field 1 Line 1 e Set time division to 10 4 s div and set the trigger to field 1 line 10 Trigger Menu HP 54505B 54506B 54510B 54512B8 6 30 Front Panel Reference i TV TRIGGER hp running duis fuge aa stole detoyptiva m 50 0000 us 0 00000 s 50 0000 us 10 0 us div repetitive 545 10WO9 Figure 6 20 Trigger on Field 1 Line 10 The trigger is now on the first horizontal sync pulse in the vertical interval with color burst information e Change the trigger point to field 1 line 21 TV TRIGGER Rp running edge pottern P60 Hi 525 iinesh 50 0000 us Q OQ00O s 50 0000 us 10 0 us div repetitive holgof t mmm fine 545 10808 Figure 6 21 Trigger on Field 1 Line 21 HP 545058 545068 54510B 54512B Trigger Menu Front Panel Reference 6 31 The trigger point is now on the last sync pulse of the vertical interval The next line contains color information in this case color bars are present e Change the trigger to field 2 line 1 TV TRIGGER edge iau LH state delay hp running 50 006009 us 0 00000 s 50 0000 us 10 0 us div repetitive Tu SQ 54510W10
146. nd SINGLE This shows the period of the waveform Since the oscilloscope is recognizing two valid trigger events edges in this case of the burst the holdoff time needs to be set such that it ignores the second pulse in the burst Using At x markers the second edge can be found to be about 1 us from the first edge See Chapter 8 Marker Menu Press the holdoff key Set holdoff to 1 04000 us with keypad or knob HP 545058 54506B 545108 545128 Front Panel Reference hp running regote MS pott state noise reject 2 50000 us 0 00000 s 2 50000 us MAMAS CN 900 ns div repetitive Figure 6 4 Two Burst Pulse w Stable Trigger The input signal to the oscilloscope has two 500 ns pulses On the first rising edge a trigger occurs and activates the holdoff timer When the holdoff time 1 04000 z s has elapsed the oscilloscope looks for another trigger The oscilloscope triggers on the first rising edge of the second burst Each trigger event occurs on a different pulse and is consequently an unstable condition By adjusting holdoff to wait until the rising edge of the second pulse passes the oscilloscope triggers only on the first rising edge and the signal is stable In this case the trigger is stable with approximately 1 04 us holdoff HP 54505B 54506B 54510B 54512B Trigger Menu Front Panei Reference 6 7 Pattern Trigger Mode Trigger Menu 6 8 The pattern mode defines a 3 bit HP 54505B 5
147. nel Reference max test voltage Key time null submenu PROBE CAL MENU amp channel Key time Key exit menu Key HP 54505B 54506B 54510B 54512B Front Panel Reference Pressing this key allows you to set a maximum voltage for the calibration signal The maximum voltage is the DC voltage output by the DC CALIBRATOR OUTPUT To prevent damage to the probe connected to the channel input select a maximum voltage for the probe in use Normally a maximum voltage of 5 volts is acceptable for most probes However some probes such as the HP 1141A require a lower maximum voltage Time null sets the timing of all channels to correspond to cach other at the probe tip This climinates time discrepancies between channels and channel to channel skew variations This is useful to manually adjust any differences in cable length HP 54506B 54512B only Pressing this key selects the channel being calibrated Press to select channel 1 to 2 1 to 3 or 1 to 4 This is an unlabelled field The time null between the selected channels can be set using either of the entry devices The range is Xt 70 ns Pressing this key returns to the Utility menu Utility Menu 12 9 Self Cal menu SELF CAL MENU cal select RES channel Be 2 5 4 all Start cal continue Print cals ebor i exit menu cai select Key Utility Menu 12 10 The self cal menu calibrates two internal functions e vertical cal e de
148. nel sensitivity 5 2 characteristics general B 18 characteristics operating B 6 characteristics performance B 4 CLEAR DISPLAY Key 3 3 CLEAR key 3 9 clear mask Key 10 11 clear memory Key 10 4 clear points Key 10 11 clicker Key 12 16 clock state trigger Key 6 15 CLR MBAS key 11 2 compare key 11 11 Compare menu 11 10 connect dots Key 7 6 7 9 7 13 connect points Key 10 10 connect the dots 9 10 connect the dots after autoscale 3 5 Contents of Shipment 2 1 continue Key 12 8 12 11 continuous Key 11 3 copy scaling Key 10 8 coupling Key 5 3 CRT test 12 6 A At markers 8 1 AV markers 8 1 D A acquisition test 12 6 data acquisition 3 3 Date menu 12 14 day Key 12 14 dBm computation 9 11 index 2 dBV computation 9 12 DC value 9 12 default conditions 3 11 Define Measure Menu 11 1 delay timebase Key 4 3 delay trigger Key 6 22 Delay Trigger Exercise 6 23 Delay Trigger Mode 6 20 Delayed Trigger operating characteristics B 9 delta t markers key 8 1 delta V markers 8 1 description of instrument B 1 description of product 1 1 diagnostics self tests 12 5 display function Key 9 3 Display operating characteristics B 11 display pixel memory Key 10 4 display waveform memory Key 10 2 display line for memory bar 4 5 Display Menu 7 1 Display Mode Key 7 2 7 11 Display Modes operating characteristics B 11 display section 3 10 duty cycle A
149. nerated when a trigger pattern is true less than a specified maximum time period This time period is specified in the next selection key that is activated when present lt is selected The present lt time ranges from 20 ns to 160 ms e range this trigger condition is a combination of present lt and present gt A trigger is generated when a trigger pattern is true for longer than a specified minimum and shorter than a specified maximum time period These time periods are specified in the next two selection keys that are activated when range is selected The first range time setting must be less than the second range time setting The holdoff key assigns the entry devices to control holdoff Holdoff disables the trigger circuit for a selectable time period or number of events after the trigger event Holdoff is selected in time units from 40 ns to 320 ms and is incremented in 20 ns intervals or by number of patrn patterns from 2 to 16 000 000 Pattern Trigger Exercise Trigger Menu 6 10 This exercise demonstrates how to define the bit pattern and how it affects the trigger and the resulting display Note Set the trigger level for each trigger source while in the edge mode These trigger levels must be set before you go to the pattern mode or proper triggering may not occur HP 545058 54506B 54510B 54512B Front Panel Reference instrument Setup To perform the following exercise use the HP 8116A Pulse Function Generator
150. ng is displayed as the write cycle to the screen is executed and displayed data is updated For sweep times greater than or equal to 20 ms div the advisory n sec prestore is displayed while pretrigger data is collected and n sec poststere is displayed while posttrigger data is collected This message indicates the time needed to complete acquisition where n is the remaining time in seconds s and continues to countdown until the time has elapsed The advisory running is displayed after all data is collected and the write cycle to the screen is executed The total time acquired and the sample rate are dependent on the time base setting Listed below are the total acquisition times and the sample rate for each timebase setting in realtime mode TIMEBASE TOTAL TIME SAMPLE RATE ACQUIRED real time ins SOns div 8 us 500MSa s HP 54505B 54506B las SOns div 8 us 1GSa s HP 54510B 54512B 100 ns div 16 us 500 MSa s 200 ns div 32 us 250 MSa s 500 ns div 80 us 100 MSa s 1 us div 160 us 50 MSa s 2 us div 320 us 25 MSa s 5 us div 800 us 10 MSa s 10 us div 1 6 ms 5 MSa s 20 us div 3 2 ms 2 5 MSa s 50 us div 8 ms 1 MSa s 100 us div 16 ms 509 kSa s 200 us div 32 ms 250 kSa s 500 us div 80 ms 100 kSa s 1 ms div 160 ms 50 kSa s 2 ms div 320 ms 25 kSa s 2ms div 800 ms 10 kSa s 10 ms div 16s 5 kSa s 20 ms div 325 2 5 kSa s 50 ms div 8s 1 kSa s 100 ms div l s 506 Sa s 200 ms div 3s 250 Sa s 500 ms div 80s 100 Sa s 1 s div 160s 50 Sa
151. ng characteristics B 15 SETUP section 3 4 shift key 3 8 Shipping an instrument 2 2 SHOW display 3 10 SHOW Key 3 6 SINGLE Key 3 3 single shot Real Time Mode 4 12 single shot Repetitive Mode 4 9 single shot exercise 4 9 single shot in repetitive mode 4 9 slope after autoscale 3 5 slope Key 6 3 soft reset 3 5 3 11 softkeys 3 10 source display Key 7 12 source trigger Key 6 3 6 28 index 8 source waveform save Key 10 2 source memory Key 10 8 source state Key 6 33 source x1 y1 Key 8 2 source x2 y2 Key 8 3 specifications performance B 3 standard width A 4 standard width A 5 Standard Select Key tv 6 28 standard user defined Key 11 4 start cal Key 12 8 12 11 start test Key 12 6 State Trigger Exercise 6 16 state Trigger Mode 6 15 statistics after autoscale 3 5 statistics Key 11 3 status message 3 2 status of acquisition 3 2 stopped mode 3 3 store waveform Key 10 3 store failure Key 10 5 storing an instrument 2 2 storing FFT 9 22 supplied accessories B 1 sweep speed time division function 4 1 SYSTEM CONTROL keys 3 2 System menu 12 13 T T trigger point position above memory bar 4 5 talk only 12 2 talk only menu 12 2 Test acquisition 12 6 loop 12 6 ram 12 6 rom 12 6 test Key 11 7 11 10 HP 545058 54506B 54510B 54512B Front Panel Reference threshold 6 1 thresholds measurements Key 11 4 time Key 12 9 time markers 8 1 Time menu 1
152. nger than 10 seconds causes the message value out of range set HP 54505B 54506B 54510B 54512B Display Menu Front Panel Reference 7 3 to limit to be displayed Persistence then is automatically set to infinite Any entry less than 500 ms causes the same message to be displayed and persistence is set to minimum avg The averaged mode selects the number of waveform acquistions that are averaged to generate the displayed waveform The range for the averaging function is 1 to 2048 in powers of 2 When averaged mode is selected the next function key is activated and the number of averages is set using either entry keys or knob Displayed signal noise is significantly reduced by using the averaging mode As the number of averages is increased from 1 to 2048 the display becomes less responsive to changes in the input signal s however using more averages reduces the effects of displayed signal noise and improves resolution env The envelope mode needs no other parameters set The display reflects the minimum and maximum voltages in each horizontal position This is useful in viewing voltage or time jitter of screens Key This key selects the number of screens to be displayed Display Menu 7 4 NOTE References to Channels below also indicates where functions and memories except pixel memories are displayed e L theentire display area is one screen and any displayed waveforms are superimposed on top of each other HP 54
153. ngs and sets specific locations on the waveform If the thresholds are not placed on the waveform above or below the oscilloscope cannot make a measurement When any of the user defined measurements are requested the oscilloscope still must determine the top base voltage thresholds From this information it can determine user defined upper and lower thresholds The mid point is then determined to be the 50 point between the upper and lower threshold Automatic Top Base Algorithms A 2 Top Base is the heart of most automatic measurements It is used to determine Viop and Voase the 0 and 100 voltage levels at the top and the bottom of the waveform From this information the oscilloscope can determine the 10 50 and 90 points which are also used in most measurements The top or base of the waveform is not necessarily the maximum or minimum voltage present on the waveform Consider a pulse that has slight overshoot It would be wrong to select the highest point of the waveform as the top since the waveform normally rests below the perturbation Top Base performs a histogram on the waveform and finds the most prevalent point above and below the waveform midpoint The most prevalent point is one that represents greater than approximately 5 of the total display points 501 and is considered to be either the top or base If no point accounts for more than 5 of the total then the top is chosen as the absolute maximum and the base i
154. ngs press RECALL 0 HP 545058 54506B 54510B154512B Channel Menu Front Panel Reference 5 5 introduction to the Triggers The trigger modes of the oscilloscope provide many distinctive techniques to trigger and capture data The triggering capabilities range from simple edge triggering to logic triggering on multiple signals This chapter contains descriptions of the triggering modes and explanations on how to use them and exercises detailing some real life applications The oscilloscope has six triggering modes Edge Pattern State e e e e Delay Glitch Tri gger Mode interaction trig d auto Key The trigger level threshold for each channel is set in the edge trigger menu and is independent for each channel It is carried over to all other modes except the TV and glitch trigger modes These levels are important settings because the high and low levels in the pattern state and delay modes are defined as being greater than or less than the trigger level The levels for TV and Glitch trigger modes are special cases and are set in the appropriate trigger menu The trig d auto selection toggles between the two trigger modes The current selection is displayed in inverse video This field is available in all trigger menus In the trig d mode the oscilloscope does not display data until all of the trigger requirements are satisfied While waiting for the trigger requirements the message awai
155. nob e Press the function key once more to highlight the third option field and select the channel to delay on e Press the function key a fourth time to return to the first numeric field HP 54505B 54506B 54510B 54512B Front Panel Heference trigger on Key This key selects a specific edge to trigger on after the qualification and delay conditions have been satisfied All other keys in this menu have dealt with defining qualifying conditions however this field sets the trigger point This is another three position option switch e Press the function key to highlight the numeric field and select which occurrence to trigger using the knob to set the number 1 to 16 000 000 e Press the function key again and move the highlighted field to select the slope The knob toggles the selection between rising and falling edge e Press the function key again and highlight the channel selection The knob is used to change the channel selection Delay Trigg er This exercise demonstrates how to use the delay trigger to trigger on the Exercise exact point of a waveform The exercise leads through setting up a complex signal setting up the oscilloscope and changing settings and counts for viewing various points on the waveform instrument Setup Sct up an HP 8116A or comparable signal generator for a burst pulse with ten bursts that repeats every 50 seconds Set up the HP 8116A Pulse Function Generator e Mode LBUR RPT 50 us
156. ns to 20 ns State Trigger A pattern is specified on any two of the three inputs with the third input used as clock The user may specify that a trigger will occur on the rising or falling edge of the input specified as the clock when the pattern is present or not present Setup time for the pattern with respect to the clock is 10 ns or less and hold time is zero Delayed Trigger Event Delayed Mode The trigger can be qualified by an edge pattern time qualified pattern or state The delay can be specified as a number of occurrences of a rising or falling edge of any of the three inputs After the delay an occurrence of a rising or falling edge of any of the three inputs will generate the trigger The trigger occurrence value is selectable from 1 to 16 000 000 The maximum edge counting rate is 70 MHz Time Delayed Mode The trigger can be qualified by an edge pattern or state The delay is selectable from 30 ns to 160 ms After the delay an occurrence of a rising or falling edge of any of the three inputs will generate the trigger The trigger occurrence value is selectable from 1 to 16 000 000 The maximum edge counting rate is 70 MHz HP 54505B 54506B 54510B 54512B General information Front Panel Reference B 9 TY Trigger General informati B 10 60 Hz 525 Lines Trigger source is selected to be any one of the three inputs Trigger level is adjustable for the selected trigger source Polarity is selected for positive or neg
157. nt ground Power Cord The HP 54505B HP 54506B HP 54510B and HP 54512B are Safety Class 1 instruments with an exposed chassis that is directly connected to earth via the power supply cord to meet IEC Standard 348 These instruments are provided with a three wire power cable When connected to an appropriate ac power outlct this cable grounds the instrument cabinet The type of power cable plug shipped depends on the country of destination See figure 2 4 for available power cords HP 54505B 54506B 54510B 54512B Anstrument Setup Front Panel Heference 2 5 CABLE PARIT RO PLUG DESCRIPTION 8120 1351 6320 703 Straight eB813634 d 25 250v OPT sp 8120 1359 120 0698 Straight NZ2551998 49C eo 8120 1589 812O 36972 8120 2857 Stroight CEE Y1153 gar Straight Seietded LENGTH COLOR COUNTRY TICA 90 2214 Cray Ua tad Kingdom 0 228 Mi Gray Cyprub Nigeria Zimbabwe Siegapore 79 200 Grey Avatroiag B7 221 Hint Gray New eotand 79 200 Mint Groy Eosi ond West Lurepe 73 290 Mint Groy Sougi Arobio 79 206 Coco Brown Se Africa india Unpolarizod t Monty fftttr one OPT 203 0 8120 1978 Stratght N was 15P iode Gray United Staten 8120 1521 so Jade Gray Conade 8126 1992 Straight Medrenit Biogh Mexico UL 544 Phitkiprnes Taiwan Strocght NEMAB 15pP Unitad Stutoz Canods 8120 1396 CE E22
158. ny Address Zip Code Phone Instrument Serial THANK YOU FOR YOUR HELP NO POSTAGE NECESSARY IF MAILED IN U S A EDS USR Your cooperation in completing and returning this form will be greatly appreciated Thank you FOLD HERE S PACKARD HEWLETT PACKARD COLORADO SPRINGS DIVISION ATTN aa DEPT
159. o invalidate data The test is not performed Er 1 either the channel or the compare waveform memory is off test is not performed Er 2 Versus mode is not a valid compare mode Notes Only one measurement test routine may be on at one time If the measurement limit test is on the message limit test on cannot turn on is displayed If the compare test is on the measurment limit test key causes the message comp test on cannot turn on io be displayed if an attempt is made to tum on a second test over the HP IB a message is displayed stating the command is ok but settings conflict compare Key The compare key selects the channel or function for comparison to the memory pair HP 54505B 54506B 54510B 54512B Define Measure Menu Front Panel Reference 11 11 to Key allowance Key on fail save Key Define Measure Menu 11 12 This key selects the memory pair ml amp m2 or m3 amp m for comparison to the chosen input channel It is required that m1 be greater than m2 for all values across the screen when memory pair mi amp m2 is selected When memory pair m3 amp m is selected m3 must be greater than m4 for all values across the screen Refer to Chapter 10 Waveform Save Mask for more information on creating waveform masks Note If m 1 is less than m2 or m3 is less than m4 the compare test fails The display is misleading in this case because the waveform appears to be in the bounds of the memory pair The
160. oltage is being measured the source impedance does not have to be 50 ohms The equation above for dBm as a function of peak voltage still applies Another common unit of amplitude is dBV A 0 dBV signal is defined to be a 1 Volt RMS signal A dBm reading can be converted to a dBV reading by subtracting 13 01 dB 0 707107 x V bd p dBV 20lo Vol V 0 707107 x 0 316228Volts UN NN 0 707107 x_0 316228Volts ns tras d 200 lVoit dBm value 13 01dB The FFT computation produces a DC value that is incorrect It does not take the offset at center screen into account and is 1 41421 times greater than its actual value The DC value is not corrected in order to accurately represent frequency components near DC When using FFT s it is important to be aware of aliasing Aliasing happens when there are insufficient samples on each cycle of the input signal to recognize the signal It occurs whenever the frequency of the input signal is greater than the Nyquist frequency sample frequency divided by 2 When a signal is aliased it shows up in the FFT spectrum as a signal of a lower frequency Since the frequency span goes from 0 to the HP 54505B 54506B 54510B 54512B Front Panel Heference Nyquist frequency the best way to prevent aliasing is to make sure that the frequency span is greater than the frequencies present in the input signal Keep in mind that most periodic signals that are not sine waves have frequency components
161. onpnronnino 5 2 OUSCURCY E E E icascada ET 5 2 Coupung A ee db m Eds 5 3 HP 54505B 54506B 54510B 54512B Front Panel Reference Input Impedalice id 5 3 MOLE preSCE DEODO BOY ad 5 4 polo eec 5 4 I E EE 5 5 ugs 0 rrr CREER 5 5 Chapter 6 Trigger Menu Introduction to the Triggers 20 0 0 cece cece cece cece ee eeees 6 1 Trigger Mode Interaction oooooooonorcoccnrrororoooomoa 6 1 Ip AUG AA A cose etr des pida 6 1 Edge Trigger Mode aos 6 2 SOUTCE KEY A N 6 3 A AE ADT 6 3 dei E 6 3 none TEC Key ossi ni ES eid hana Erg 6 3 MOOM Key Lass icoes bovis UU a duet Eacoua esa dedo eds dec 6 3 Edge Trigger with Holdoff Exercise 0 000 0 0 ccc cece eee 6 4 InstrimEe nt Setup sd obser ar a ha ias 6 4 Oscilloscope Setup cece ccc ccc cceeccceenuucs 6 5 Pattern Trigger Mode titi 6 8 PACU C Ae cee yh eg io 6 9 a Boia oP atch tia ext b ULUER SEE A pu sears bases 6 9 AA A eee 6 10 Pattern Trigger Exercise ooooooooomonronsonsmm 2 6 10 Instrument Setup 0 ccc cece cece cnc cet aaran aaa 6 11 Oscilloscope Setup 0 0 0 0 0 ccc c cece cece cc ceceseceucs 6 11 State Trigger Mods an 6 15 i dc ecc A caaetile tues 6 15 WOT AN ee ee 6 15 PESO aM 6 16 DOIdOIE O A crea nahn Sag cee ass Ee eae 6 16 State Trigger Exercise 0 ccc cece cs ccesccccevcecacees 6 16 instrument A 6 16 Oscilloscope Setup 0 0 000 ccc ccc ec eee eeenes MEUSE 6 17 Delay
162. onvolatile Key display Key Waveform Save Menu 10 2 The waveform menu has four available memories m1 m2 m3 and m4 These memories are nonvolatile and will not be cleared during AUTOSCALE RECALL CLEAR or recycling power This permits disconnection of power and transportion of the oscilloscope without losing the contents of waveform memories A waveform memory consists of a single waveform record including the horizontal and vertical scaling parameters This allows measurements on previously stored waveform and function data x and y markers can be set on waveforms when they are displayed When the oscilloscope is in the envelope display mode and a waveform store is executed the minimum value and maximum value are stored separately The maximum value will be stored in ml if m1 or m2 are the selected store locations or m3 if m3 or m4 are the storage locations The minimum values are stored in m2 or m4 respectively A store message is displayed above the waveform display area to show the storage locations of both values This key selects which memory to use The selections are nonvolatile memories m1 m2 m3 and m4 When a memory is turned on the small circle below the label is highlighted When the memory is protected see protect Key the small circle has an x through it The waveform memories are record memories that store 8000 points realtime or 500 points repetitive of waveform information in each memory This key toggle
163. ope is in the stopped mode all data that is currently displayed is erased If the oscilloscope is running all data is erased however new data is displayed on the next acquisition The RUN STOP and SINGLE keys are not affected The RUN STOP SINGLE and CLEAR DISPLAY keys have a relationship that make it possible to manipulate data acquisitions and view one two or several acquisitions It is possible to stop acquiring data to clear the display and to capture one acquisition for evaluation LOCAL Key The LOCAL key sends a return to local control message to the HP IB interface and returns control to the front panel This key can be locked out f a local lockout command is executed over the HP IB This is the only front panel key that remains active while the oscilloscope is in remote operation if it has not been locked ont HARDCOPY Key The HARDCOPY key executes an immediate hardcopy of the currently displayed data on a compatible plotter or graphics printer and stops all other oscilloscope functions while printing The oscilloscope must be in the talk only mode and the hardcopy device must be in the listen always mode Setup of the hardcopy options is accessed in the HP IB submenu see Chapter 12 Utilities Menu Selection of any key aborts the hardcopy action HP 54505B 54506B 54510B 54512B Fronmt Panel Overview Front Panel Reference 3 3 Setup The SETUP section controls the following display information e AUTOSCALE f
164. or automatic scaling of the waveform display area e SAVE and RECALL setups e Quick access to channel function and trigger information on the SHOW screen c a Lb X Q z 1 EJ Figure 3 3 Setup Section Front Panel Overview HP 54505B 54506B 54510B 54512B 3 4 Front Panel Heference AUTOSCALE Key This key causes the oscilloscope to evaluate all input signals and set the correct conditions to display the signals When AUTOSCALE is pressed the following conditions are set e Vertical sensitivity on all channels if applicable e Vertical offset on all channels if applicable e Trigger edge mode positive slope and proper trigger level for the trigger source e Sets to minimum persistence when in normal display and repetitive acquisition modes single persistence in real time acquisition mode Time base delay to 0 0 seconds Time base reference to center e Time per division Autoscale also includes a soft reset which performs the following Turns off At AV y x markers Turns off all measurements Turns off measurement limit test Turns off waveform compare test Turns off sequential single shot Turns off waveform math functions Turns off waveform pixel multiple memory display Turns off statistics Turns off connect the dots Sets holdoff to 40 ns minimum value 6 o6 o 060 06 o0 6 e6 8 6 The previous oscilloscope settings are stored in volatile memory RECALL 0 To undo
165. or menu it is also possible to clear existing masks and create a new one using the mark and connect point method MASK EDITOR E NOTE If the active limit mask defined by the limit mask key is not displayed pressing any key in the Mask Editor Menu except connect points A u clear mask or main mask menu will cause it to be displayed immediately main mask menu mark point Key Used to record the current horizontal and vertical field values This point is used as the anchor point when connecting or clearing points from the screen These values are displayed in the horiz vert Key and represented on the screen at the junction of the x2 y2 markers When the key is pressed the current values are saved and the x1 y1 markers are moved to that point on the screen imposed over the x2 y2 markers See horiz vert Key for information on moving markers connect points Key Pressing this key replaces the portion of the existing active limit mask from the mark point junction of x1 y1 markers to the connect point junction of x2 y2 markers with a straight line See horiz vert Key for information on moving markers Waveform Save Menu HP 545058 54506B 54510B 545128 10 10 Front Panel Reference clear points Key Pressing this key replaces the portion of the existing active limit mask from the mark point junction of x1 y1 markers to the connect point Gunction of x2 y2 markers with a hole See horiz vert Key for information on mov
166. ories but not on the volatile pixel memories Multiple memories store failure data from limit and compare tests This data can be viewed or transferred to the waveform memory for nonvolatile storage and or measurement Automatic Pulse Parameter Measurements The oscilloscope offers 17 automatic pulse parameter measurements from the front panel shown below and additional measurements via HP IB including All Overshoot and Preshoot The standard measurements are performed with 10 50 and 90 voltage thresholds as defined by IEEE standard 194 1977 IEEE Standard Pulse Terms and Definitions HP 54505B 545068 545108 545128 General information Front Panel Reference B 13 User definable Measurement Thresholds General informa B 14 Automatic measurements available on the Digitizing Oscilloscopes Rise time Pulse Width Volts amp Volts avg Preshoot HP IB only Fall time Pulse width Volts base Volts max Overshoot HP IB oniy Frequency Duty Cycie Volts top Voits min Volts time HP IB only Period Volts RMS dc HP IB only Volts RMS ac The oscilloscope allows you to set your own thresholds for automatic measurements Both the upper and lower thresholds can be set from 25 to 125 as long as the upper threshold value is always greater than or equal to the lower threshold The middle threshold is always equal to the mid value between the upper and lower threshold Continuous Measurements Can be turned on or of
167. ower input 2 3 Power Requirements 2 3 power switch 3 10 present Key 6 16 probe attenuation 5 4 probe attenuation failure 12 8 Probe attenuation SHOW 3 6 probe cal menu 12 7 probe key 5 4 Probe Terminal section 3 9 product description 1 1 product regulations B 19 protect Key 10 3 10 5 HP 54505B 54506B 54510B 545128 Front Panel Heference qualify on edge 6 21 pattern 6 21 state 6 21 qualify on Key 6 20 R ram test 12 6 range 6 10 realtime acquisition 4 4 Realtime Mode operating characteristics B 12 Rear Panel Layout 2 3 RECALL 0 3 5 RECALL CLEAR 3 6 3 11 RECALL Key 3 6 registration form Key 12 16 reference Key 4 3 reference wim Key 10 6 repetitive acquisition 4 4 Repetitive Bandwidth 1 1 Repetitive Mode operating characteristics B 11 repetitive mode single shot exercise 4 9 repetitive realtime Key 4 4 reset 3 11 rise time A 5 rise time measurements A 1 rms ac dc Key 11 3 rom Test 12 6 RUN STOP Key 3 2 running 3 2 index 7 sample rate relationship to acquisition and timebase 4 2 SAVE Key 3 6 saved source Key 10 5 search level Key 9 6 second Key 12 15 selecting line voltage 2 4 Self Cal menu 12 10 sclftest menu 12 4 sensitivity CHANNEL menu 5 2 sensitivity Key 9 5 9 9 sequential Key 4 6 Sequential single shot 4 6 4 13 7 15 service menu 12 12 set Key 11 8 settings after autoscale 3 5 Setup 3 4 Setup Aids operati
168. perations sources and displayed results WAVEFORM HATH Function Key This key selects either function 1 2 3 or 4 When a function is turned on the small circle immediately below the function number is highlighted display Key The display key turns the selected function on or off HP 54505B 54506B 54510B 54512B Waveform Math Menu Front Panel Reference 9 3 operand chan mem Key Operator Key Waveform Math Menu 9 4 The display of the functions depends on the display mode in the DISPLAY MENU In single display the functions are displayed in one screen In dual mode display functions 1 and 2 are displayed in the top screen and functions 3 and 4 are displayed in the bottom screen In four mode display each functions is displayed in its appropriate area starting with 1 on the top Press this key to select the first operand of the mathematical operation or the waveform to be manipulated The choice can be any channel or any waveform memory that has a waveform stored If the operator is magnify invs int diff or fft this is thc only operand that may be selected This key selects any of the nine functions Continue pressing the selection key until the operation desired is highlighted e plus the two selected operands are added together Addition is calculated on a point by point basis e minus the minus operation subtracts the second operand from the first e times x the times operation multiplie
169. played The displayed signal is completely updated as each acquisition is made The following graphics are shown at the top of the display area and in figure 4 2 memory bar represents the displayed portion of the waveform record e memory bar display line represents the entire 8K waveform record e T indicates the trigger point s location within the 8K waveform record MEMORY BAR DISPLAY LINE SHOWS AVE Em AN WAVET i RECORD T SHOWS TRIGGER POINT MEMORY BAR SHOWS PORTION OF WAVEFORM RECORD THAT IS BEING 54 111 E x87 DISPLAYED Figure 4 2 Display Memory Bar HP 54505B 54506B 54510B 54512B Timebase Front Panel Reference 4 5 Sequential Single shot sequential Key Timebase 4 6 Sequential Single shot allows the user to define the acquisitions to be captured and stored for specific active channels Once the of points per acquisition and the of segments to be captured are defined the data is captured and processed Measurements waveform math functions and pan and zoom features can all be performed on captured segments Viewing acquisitions segment by segment averaged or envelope is performed using the display key See Chapter 7 Display Menu for more information on displaying data Total sequential memory is 400k words allocated dynamically so single channel acquisition can use all 400k words while 2 channel acquisition is limited to 200k words per channel Acquired data is not lost when th
170. polation Key to off to bypass the interpolation filter and view the actual non filtered data dots for all active channels running or stopped Active memories with realtime data displayed at lt 50ns will also be displayed as dots Note that the dot displays are not available over HP IB Turning interpolation to off will also turn off any active measurements and any attempt to perform operations such as measurements data input etc will not be allowed Select on or exit the system menu to restore the filter to the on state This key returns to the Utility menu Calibration Procedure Utility Menu 12 16 There are two levels of calibration for the oscilloscope The first level is in the self cal menu and suggested by HP to be performed under the following conditions e at six month intervals or every 1000 hours of use e ifthe ambient temperature changes morc than 10 C from the temperature at full calibration e the user would like to optimize measurement accuracy HP 54505B 54506B 545108 545128 Front Panei Reference Self cals do not require any equipment other than cables It is necessary to UNPROTECT the calibration which may not be allowed in some circumstances Follow the Self Cal Menu calibration procedures to perform this first level of self cal The second level of self calibrations are to be performed only by quaiified service personnel with access to the service manual Note Before the oscilloscope can
171. ra delis y 11 2500 dfa delta x 49G 00007Hz ifgeits X 20 408 hs fine 9 13 Measuring FFT Peaks Display both channel and function with the display menu Select the marker menu and change both sources to channel 1 The x1 and x2 markers change from Hz to time as in figure 9 14 running MARKER MENU remote talk ett mE source xi i Mexbes BA x2 position 50 000 ns 10 0 ns div reaitipe y2 4 996 87Se x2 1 20 000 ns y2 position yit 13 1 10563 V xX1 1 21 000 ns Diese Ag yg ee delta y 2 10250 Y delta x 41 000 ns ifdeaits x 24 3907 fing 9 14 Using Markers on FFT Source HP 54505B 545068 54510B 54512B Waveform Math Menu Front Panel Reference 9 21 Storing an FFT To store the FFT Press the WFORM SAVE key and select waveform nonvolatile m1 and func 2 as in figure 9 15 Press store function key WAYEFORN SAVE Wiis PIXA t D suitipte wask Ap running renole tsik j nonvolattioe 50 000 ns E S0 000 R 10 0 ns div realtiae y2 1t 96 87Sa K2 4 26 000 ns yii 9 t 10S63 Y xt gt 21 000 ns delto y 2 10250 Y delia x 41 060 ns t deita x 24 S902 fine 9 15 Storing an FFT Press CLEAR DISPLAY and the blue key and CLEAR to clear the screen Turn display on to view the stored FFT Notice the memory readouts are in time rather than frequency Agr stopped HAVEFORT SAVE rebote listen display of f ber source chan 2 func EY j i saved ilsebss
172. rm e Set time base to 20 ms div The entire acquired waveform is displayed as in figure 4 12 The memory bar also shows that the entire memory is on the screen e Set time base to 20 us div to zoom in on the acquisition as in figure 4 13 The oscilloscope uses a digital oversampling filter to fill in the waveform for a more usable display at this sampling rate The memory bar indicates the portion of the acquisition that is displayed HP 54505B 54506B 54510B 54512B Front Panel Reference Panning HP 54505B 54506B 54510B 54512B Front Panel Reference Ap stopped TIMEBASE 1 00 as div delay reference left ENS right tepetit CT ETT Arda o ld y A Pl a anne Mah m t h A he A et i ke dr al ive X sequential Mee spat Set on 1900 000 za 0 20000 t 100 000 as 20 0 as div reajtino 4 12 Looming In on the Acquisition hp stopped TYinrBasSt resote listen PURI EON a E gree b 3j s edis 1 60 as div delay 6 00000 8 repetitive Cl e ii sequentis 100 006 us 0 0000G 100 900 us 20 0 uS div fealtiiags 4 13 Looming In on the Acquisition Panning moves the acquisition left and right for analyzation of waveforms 9 Select delay in the TIMEBASE menu Use the front panel knob to increase and decrease delay Timebase 4 17 As delay is increased the acquisiton pans to the left because the window is past the trigger point
173. ront Panel Reference Oscilloscope Setup Connect the the signal generator to the channel 1 input and disconnect all other inputs e Press AUTOSCALE see Figure 6 2 e Select the DISPLAY MENU and set connect dots to on ho running reaote talk 1 500 V div of sst 500 0 nV 1 000 1 ine dc 5 60606 us 0 00000 5 00000 us 1 00 us div repetitive Trigger Mode Edge 1 F 180 0 uy Figure 6 2 Two Burst Waveform after Autoscale e Select the TIMEBASE MENU and set the sweep speed to 500 ns div e Set acquisition mode to repetitive The oscilloscope sets up the display parameters It is now attempting to trigger on the first rising edge of the two cycle burst e Enter the TRIGGER MENU and press the slope key The oscilloscope is now attempting to trigger on the first falling edge of the two cycle burst Press the slope key again to trigger on the positive edge HP 54505B 54506B 54510B 54512B Trigger Menu Front Panel Reference 6 5 Trigger Menu 6 6 Note The signal generator is set for two 500 ns pulses The display on the oscilloscope appears to have three pulses This is an unstable trigger condition The following steps explain this condition and how to overcome it Ap running reaote talk TIMESASE ee RH 2 0000 us 0 00000 s 2 50000 us 500 ns div repetitive 6 3 Two burst Pulse Determining holdoff time Change the time div setting to 2 us div Press RUN STOP STOP CLEAR DISPLAY a
174. rtion of the waveform that is to be measured must be displayed on the oscilloscope For the most accurate measurements consider the following conditions e atleast one complete cycle must be displayed for period or frequency measurements e the entire pulse must be displayed for width measurements e the leading edge of the waveform must be displayed for rise time measurements e the trailing edge of the waveform must be displayed for falltime measurements If more than one waveform edge or pulse is displayed the measurements are made on the first leftmost portion of the displayed waveform that can be used If there are not enough data points the oscilloscope will display lt with the measurement results This is to remind you that the results may not be as accurate as possible It is recommended that you re scale the displayed waveform and make your measurement again HP 54505B 545068 54510B 54512B Algorithms Front Panel Reference A 1 Standard Measurements User defined Measurements When any of the standard measurements are requested the oscilloscope first determines the top base voltage levels at 100 0 From this information it can determine thresholds 10 90 and 50 needed to make the measurements The 10 and 90 thresholds are used in the rise time and falltime measurements The 50 midpoint is used for measuring frequency period pulse width and duty cycle The voltage thresholds are precise setti
175. s Waveform Math Menu 9 10 The fundamental measuring units of an oscilloscope are volts division in the vertical axis and time division on the horizontal axis This philosophy is used for all the function operations except for FFT s No provisions have been made to manage units for all combinations of operands and operations For example apply a 2V signal to channel 1 and a 3V signal to channel 2 The oscilloscope display the product as 6V when in reality itis 6V The following information will help to make optimum measurements in the frequency spectrum It is easiest to view FFT s with connect the dots on Connect the dots is set in the DISPLAY MENU For best vertical accuracy on peak measurements 1 Make sure the source impedance and probe attenuation is set correctly The impedance and probe attenuation are set from the CHANNEL MENU if the operand is a channel 2 Set the source sensitivity so that the input signal is near full screen but not clipped 3 Use the flattop window 4 Set the FFT sensitivity to a sensitive range such as 2 dBm division in the single screen mode or 4 dBm division in the dual screen mode HP 545058 545068 545108 545128 Front Panel Reference Frequency Measurements Computation of dBm For best frequency accuracy on peaks 1 Turn magnify on 2 Use the Hanning window 3 Set the frequency span so that the signal of interest is in the upper part of the screen not dow
176. s chosen as the absolute minimum HP 545058 54506B 54510B 545128B Front Panel Reference Edge Definition Both rising and falling edges are defined as transitional edges that must cross three thresholds A rising edge must cross the lower threshold in a positive direction defining it as a rising edge cross the mid threshold any number of crossings both positive and negative are permissible and then cross the upper threshold without any crossing of the lower threshold A falling edge must cross the upper threshold in a negative direction cross the mid threshold any number of times and then cross the lower threshold without crossing the upper threshold Note Most time measurements are made based on the position of the first crossing of the middle threshold Algor ithm Following are the definitions that all measurements are based on Definitions delay There are three types of delay measurement e jitter e Standard e user defined Jitter occurs only under the following circumstances e standard user defined key is set to standard e two delay parameters are the same e display mode is envelope HP 54505B 54506B 54510B 54512B Algorithms Front Panel Reference A 3 if first edge on minimum waveform is rising then delay mid threshoid of first rising edge of max waveform minus mid threshold of first rising edge on min waveform else delay mid threshold of first falling edge on min waveform minus mid threshold
177. s the selected waveform memory display on or off When on is selected an additional key is displayed that shows the TIMEBASE and DELAY settings when the waveform was stored HP 545058 545068 545108 545128 Front Panei Reference source Key The source key selecis the source waveform to be stored The source alternatives are any channel or function store Key This is the active key in the menu By pressing this key the specified waveform is stored in the specified memory if the memories protect is off When the key is pressed an immediate erase of the selected memory and a write to the memory is executed If the destination memory is protected a message indicating that the store was not successful is displayed protect Key This key toggles the selected waveform memory write protect to on or off When on is selected any attempt to store data is not allowed and a message indicating that the store was not successful is displayed timebase delay Key Only displayed when the memory selected is set to on Initially displays the timebase and delay settings when the waveform was stored Pressing the key cycles between the timebase and delay values Use the knob to change values for pan and or zoom of displayed waveform pixel Menu The pixel submenu selects the pixel memories These memories are WAVEFORM SAVE useful when additive memory capabilities are needed Waveforms can be wavefors aultipie mask stored to and added to inde
178. s the value of the first operand by the value of the second operand Each data point is multiplied with a corresponding data point and the product is placed on the function display e vs versus the versus function draws a volts versus volts display of the two selected operands Versus cannot be stored ina waveform memory because measurements cannot be made on the resultant waveform however it can be stored in pixel memory In source x versus source y the vertical range of source y determines the horizontal range of the vs function e magnify The magnify function displays and scales the first operand e inv inverse The inverse function inverts the data of the first operand HP 54505B 54506B 54510B 54512B Front Panel Reference e int integrate The integrate function calculates the integral with respect to time of the vertical value of the designated operand Integration proceeds on a point by point basis Ifa data point is not encountered in the operand integration uses the next valid data point Any non existing data points encountered are not summed only the available data 1s integrated Default scaling is determined by the original operand e diff differentiate The differentiate function calculates the derivative of the designated operand with respect to time Differentiation proceeds on a point by point basis If a data point is not encountered in the operand then differentiation uses the next valid data point Def
179. t us in meeting your needs better Please complete this questionnaire and retum it to us Feel free to add any additional comments that you might have Ail comments and suggestions become the property of Hewlett Packard Omit any questions that you feel would be proprietary Yes No 1 Did you receive your product when expected i 2 Were you satisfied with the operation of the instrument at turn on 3 Werc the proper accessorics supplied with your product If not what was missing Probes Rackmount Kits Manual s Other 4 What measurements will this instrument be used to make 5 How will the instrument be controlled Front Panel HP IB Controller Type 6 What do you like most about the instrument 7 What would you like to see changed or improved 8 Which manuals have you used Getting Started Guide Front Panel Operation Reference Programming Reference Service Manual 9 Please rate the manuals on the following 4 Excellent 3 Good 2 Adequate i Poor Breadth and depth of information Ability to easily find information Ability to understand and apply the information provided in the manual Please explain 10 What is your experience with digitizing oscilloscopes No previous experience f Less than 1 year experience More than year s experience on one model More than 1 year s experience on several models Name Compa
180. tatistics BEY nio 11 3 rms Key rr NETS 11 3 Measure Define Sub menu 0 000005 11 4 standard user defined Key 0 000 0 000 ccc cece ec ceaees 11 4 thresholds measurements Key 0 cc cece cece cece ececceeeeeces 11 4 Measure Limit Submenu 000000 0000 e cece o 11 7 test ISO ccd dines eR PROS EHE ERES 11 7 SEINEN A d papa ied ere 11 8 fad O A cata booa o er eod nba aiu iba 11 8 sg NIS 0o CE TER 11 8 on foil Rave Key 3 AN 11 8 After fail Key 25 cud idas aia 11 9 Compare Submenu orirun ccc cece cece cece aene 11 10 OSE MOY A A tirao 11 10 compare Key AAA A 11 11 A A teed eee S 11 12 allowance Key air ace ea ka dad usd etas 11 12 On Fa SAVE A a aer 11 12 AIK Call ROY M 11 14 Utility Menu Introduction to the Utilities 2 0 0 0 0c cee cece cence 12 1 HP IB HiCHU peed goatee hoe acd oe Ae eee oo GUI Shas 12 2 talk only MOGE coa ias 12 2 addressed mode 222a duriter er ED Ta C Y 12 2 torm ecd Key Tr 12 3 paper lenpth Rey cesa cc sus er bs rae a 12 3 device mode NOY as Pa UR Lise 12 3 CRM INCH Key 235 binkts Eod eu Ve e vs Ce dua ace ada 12 3 carm 12 4 fan Les dao 12 6 HP 54505B 54506B 54510B 54512B Front Panel Reference o o s is dud teme uia boss ee ee ee ee e EUER M iE 12 6 acquisition TES Sos p Vea ace eda ples bate 12 6 Miscellaneous Tests 12 6 lOOD AA inte eee eae ean A s pucd ea c edet e o bp 12 6 rni go A E E EA 12 6 test all NOY air a ai ber exit menu K
181. tch Trigger Timing Accuracy ns to 10 ns 1 5 ns HP 54505B 54506B 54510B 54512B Genera Front Panel Reference Notes 1 Upper bandwidth reduces by 2 5 MHz for each C above 35 C Bandwidth in Realtime mode is typically greater than 250 MHz tested at a 6 division reference 2 Rise time figures are calculated from t 0 35 Bandwidth 3 Magnification is used below 7 mV div range so vertical resolution and accuracies are Correspondingly reduced Below 7 mV div full scale is defined as 56 mV 4 Voltage measurement accuracy decreases 0 0896 ot fuli scale per C from firmware calibration temperature This specification is valid for a temperature range 10 C from firmware calibration temperature Specification applies to both modes repetitive and real time single acquisition 5 Specification applies at the maximum sampling rate for bandwidth limited signals tr 1 4 X sample interval At lower sampling rates the specification is 0 005 X delta t 2 X 10 X delay setting 0 15 X sample interval for bandwidth limited signals tr 1 4 X sample interval Sample interval is defined as 1 sample rate Specification also applies to those automatic measurements computing time intervals on pulses with identical slope edges i a pos pos neg neg Performance Characteristics Vertical General informati B 4 The following are performance characteristics of the Digitizing Oscilloscopes Switchable
182. tem submenu is used to set the realtime clock rear panel AC BNC output clicker de select interpolation and print registration forms SYSTEM MENU 05 MAY 1992 System menu time 13 34 21 date chicker set date set time year AC BNC probe comp trigger out clicker registration AC BNC interpolation registration second reconstruction exit senu l ext menu Figure 12 8 System Menu HP 54505B 54506B 54510B 54512B Utility Menu Front Panel Reference 12 13 date submenu The date submenu is used to change the current realtime date Current date 1s displayed on the screen DATE MENU sei date o5 MAY 1992 exit menu set date Key Press to enter the currently selected year month and day Current date is displayed by the fifth key year Key Press to highlight current year then use keypad or knob to enter the new value month Key Press to highlight current month then use keypad or knob to enter the new value day Key Press to highlight current day then use keypad or knob to enter the new value exit menu Key This key returns to the System menu Utility Menu HP 54505B 54506B 54510B 54512B 12 14 Front Panel Reference time submenu TINE MENU set tine hour minute second 13 35 00 exit meno set time Key hour Key minute Key second Key exit menu Key The tume submenu is used to change the current real time Current time is displayed on t
183. ter changes 7 14 exclude include 7 13 execute all changes 7 14 exit menu 12 3 12 6 12 9 12 11 12 14 12 16 fail i 11 8 failure 10 5 FFT 9 6 field 6 28 FINE 3 9 form feed 12 3 freq span 9 7 from seg 7 14 Function 9 3 Hardcopy 3 3 holdoff 6 3 6 10 6 16 6 29 6 34 horiz magnify 9 7 horiz vert 10 8 10 11 hour 12 15 interpolation 12 16 level adjust centered 6 3 6 33 level polarity 6 28 limit mask 10 11 line 6 28 Local 3 3 main mask menu 10 9 10 11 mark point 10 10 HP 54505B 54506B 54510B 54512B Front Panel Reference key continued mask editor 10 7 max test voltage 12 9 measurc define limit compare 11 3 minute 12 15 month 12 14 more 7 14 9 6 9 10 more exclude include 7 13 more preset probe 5 4 nonvolatile 10 2 10 5 off on 8 2 off frame axes grid 7 6 7 9 7 12 Offset 9 5 9 9 offset channel 5 2 on fail save 11 8 11 12 operand 9 4 operator 9 4 or i 11 8 paper length 12 3 pattern 6 8 peak search 9 6 persistence 7 8 present 6 16 probe 5 4 protect 10 3 10 5 qualify on 6 20 RECALL 3 5 teference 4 3 rcference wfm 10 6 registration form 12 16 repetitive realtime 4 4 rms ac dc 11 3 RUN STOP 3 2 SAVE 3 6 save to 11 9 saved source 10 5 search level 9 6 second 12 15 sensitivity 9 5 9 9 sensitivity channel 5 2 sequential 4 6 HP 54505B 54506B 545108 54512B Front Panei Reference key continued set
184. ternal trigger for the HP 54505B 54510B or 4 simultaneous acquisition for the HP 54510B 54512B Channel Connectors BNC female Bandwidth 3 dB dc to 250 MHz Vertical Sensitivity Range 1 mV div to 5 V div 10 mV div to 50 V div with 10 1 divider probes Vertical Resolution A D Converter 8 bits Maximum Sample Rate 1GSa s input R 1 Mohm 1 or selectable 50 ohm 1 Input C 7 pF nominal Maximum Input Voltage 1 Mohm 250 V dc peak ac 50 ohm 5 V RMS Frequency FFT Frequency Range dcto250 MHz HP 54505B 54506B or dc to 500 MHz HP 54510B 54512B real time acquisition On the HP 54510B 54512B signals above 250 MHz can be viewed with reduced amplitude accuracy amplitude is down typically 8 dB 500 MHz HP 54505B8 54506B 54510B 54512B Front Panel Reference 3 dB Frequency Range dc to 250 MHz analog bandwidth Frequency Resolution 1 22 mHz milliHz to 975 kHz HP 54505B 54506B or 1 22 mHz to 1 95 MHz HP 54510B 54512B real time acquisition Maximum Displayed Frequency 5 Hz to 250 MHz HP 54505B 54506B or 5 Hz to 500 MHz HP 54510B 54512B selectable real time acquisition Display is from dc to a selectable upper frequency in steps from 5 Hz to 250 500 MHz Maximum frequency displayed is 1 2 the sample rate Horizontal Magnify Mode This mode allows you to specify the frequency that is displayed at center screen and magnify the frequency domain display about that point Magnificat
185. the CLEAR key resets the oscilloscope to its factory default settings Recall 0 If Autoscale ECL or TTL preset or recall setup are inadvertently selected recall 0 restores the instrument to its last state prior to erroneous selection Show Displays instrument status including volts div offset and trigger condition Hardcopy The CRT display including menus and measurement answers can be transferred directly to an HP IB raster graphics printer including the HP 22254 ThinkJet HP 2227B QuietJet or other compatible printers Hardcopy from HP graphics plotters including the HP 7440A HP 7470A HP 7475A and HP 7550A 1s also available Full HP IB The oscilloscope is fully programmable Instrument settings and operating Programmability modes including automatic measurements may be remotely programmed via HP IB IEEE 488 HP IB programming complies with IEEE 488 2 1988 Standard Codes Formats Protocois and Common Commands HP 54505B 54506B 54510B 54512B General information From Panei Reference B 15 General information B 16 Sequential Single shot Data Acquisition and Transfer Rate Using the front panel TIMEBASE menu or HP IB command Raw Data the oscilloscope can automatically capture store and label a waveform and re arm the trigger and then repeat this process until the oscilloscope s entire 400K word RAM volatile is filled Once the specified number of waveforms have been captured and stored the oscilloscope c
186. the amplitude and frequency of peaks on the display when the fft function of the oscilloscope is turned on To qualify as a peak the amplitude of the peak must be at least one display division or half a division in split screen mode The peaks must also be greater than the search level specified The peak search key causes the markers to turn on The markers are set to the specified peaks in the peak search field Markers x1 and yl are set on the first peak specified Markers x2 and y2 are set on the second peak specified Peak numbers from 1 to 99 may be specified in the peak search field Pressing the blue key and CLR MEAS key removes the markers from the display A peak search for both peaks is performed every time the peak search key is pressed If a peak is not found a message is displayed and the vertical marker is set to the right side of the screen and the horizontal marker is set to the bottom of the screen For maximum frequency accuracy when using peak search the FFT horizontal magnify function should be turned on The search level key sets the minimum search level for the peak search The more key selects the second level of the WAVEFORM MATH menu when the fft function is selected HP 545058 545068 54510B 54512B Front Panel Reference horiz magnify Key WAVEFORM MATH E magnify m i ru 1 po iva s Gt uw s haa res i 85 MHz r t 545 10W45 freq span Key center freq Key HP 545058 545
187. the source currently selected as follows e Channel off nonvolatile memories or multiple e Function off nonvolatile memories or multiple e Screen off pixel memories or hardcopy Define Measure Menu HP 54505B 54506B 54510B 54512B 11 8 Front Panel Reference The type or amount of failure data saved depends on the destination selected Note If a destination is selected and the channel or function is off a message is displayed indicating that the data is invalid and failure data is not stored e Inthe case of saving to nonvolatile memory one memory may be selected If muitiple failures occur only the last failure data is saved because the most current data will overwrite the memory contents More than one source can specify the same nonvolatile memory An attempted write to protected nonvolatile memory will result in a memory write error e When saving to multiple memory up to 665 records can be saved data includes time date If multiple failures occur and stop after fail mode is selected then the test will terminate after all available memory space is filled If the continue after fail mode is selected the data records will wrap around If more than one source is specified with a multiple destination then the data records will be partitioned between the specified sources e Ifthe data is saved to pixel memory an accumulated save occurs No measurements may be made on the pixel data e Asaveto hardcopy sends the
188. ting trigger is displayed In the auto HP 54505B 54506B 54510B 54512B Trigger Menu Front Panel Reference 6 1 mode if a trigger is not found a trigger is generated and acquired data is displayed A status message is displayed in the upper left corner of the screen Edge Tr igger The edge trigger mode has the following selections e Trigger source e Trigger level adjust e Slope e Noise reject e Holdoff RON ED C EE MEER EE pott state EDGE TRIGGER deley iv glitch SO urte Source O23 4 Line 4 Figure 6 1 Edge Trigger Menu Trigger Menu HP 54505B 54506B 54510B 54512B 6 2 Front Panel Reference source Key The source key selects the trigger source The options are channels 1 or 2 external or line trigger for the HP 54505B 54510B and channels 1 through 4 or line trigger for the HP 54506B 54512B The current selection is highlighted in inverse video When LINE is selected the oscilloscope triggers using the line voltage and the remaining menu choices are removed level Key The level key sets the trigger level The range on this function is 12 divisions from center It provides flexibility for setting exact triggering points and specifies levels used in the more sophisticated triggering modes The center can also be selected with centered slope Key This field is not labeled however the available selections are graphic representations of the rising edge and falling edge The current selection is
189. ts e Press AUTOSCALE e Press DISPLAY and select connect dots to on e Press WFORM SAVE and select the mask submenu e Press the automask menu key to select the automask submenu HP 54505B 54506B 54510B 54512B Waveform Save Menu Front Panel Reference 10 13 Waveform Save Menu 10 14 Press source key until source is highlighted then turn the knob until chan 1 is selected Press source key until memory is highlighted then turn the knob until mi m2 is selected Press tolerance units key until div is highlighted Press horiz vert key until horiz is highlighted then use the keypad to enter S000 and press S V key Press horiz vert key until vert is highlighted then use the keypad to enter 5000 and press S V key Press autemask key Verify upper stored in mem 1 lower stored in mem 2 is displayed The upper limit mask lower limit mask and reference waveform are all displayed as in figure 10 4 fp running ALITONASK reacta taik autosask tolerence units E volts tiee 5 00000 as 0 00000 s 5 00000 ms 1 00 as div resaltise RAIA mask menu Figure 10 4 Automask Example HP 54505B 54506B 54510B 54512B Front Panel Reference introduction to This chapter contains a description of the measurement menu The Measurements entire measurement function with all possibile options is accessed with the DEFINE MEAS menu DEFINE MEAS measure himit compare leah test thresholds Measurem
190. tting changed and the stored waveform recalled to be compared with the current display e Connect this oscilloscopes rear panel AC CALIBRATOR signal to the Channel 1 input with a coaxial cable e Disconnect any other signals that may be connected to other inputs e Press AUTOSCALE e Press WFORM SAVE and select the waveform submenu e Press the nonvolatile key until m3 is selected e Press the source key until chan 1 is selected e Press the store key The currently displayed waveform is saved in nonvolatile memory m3 The remainder of this exercise demonstrates how to recall the stored waveform e Press the display key to turn on the m3 display e Press the CHAN menu key change the offset of channel 1 This moves the current display so the stored waveform can be viewed The display should look like figure 10 3 HP 54505B 54506B8 54510B 54512B Front Panel Reference Ap running WAVEFORM SAVE remote talk e caia ts eer Bullipig mask store protect 4 00 as d 0 00000 5 00000 gs 1 00 as div reslt me 5 00000 as Figure 10 3 Displayed Memory Mask Exercise This exercise demonstrates how to generate upper and lower masks using a reference waveform at a tolerance of one half a horizontal and vertical division e Connect this oscilloscopes rear panel AC CALIBRATOR signal to the Channel 1 input with a coaxial cable e Disconnect any other signals that may be connected to other inpu
191. upper and lower boundaries are stored in the inverse memories When a point on the waveform fails the compare test the point is tested again against the allowance set in this field Allowance refers to the distance a point may be above the upper mask or below the lower mask and still pass the compare test The distance is measured in divisions The allowance range can be set from 0 to 8 divisions in 1 40 division increments Figure 11 2 is a flow chart of the waveform comparison test This key saves the data associated with the failure from selected channel function or screen to memories or to a hardcopy device The source and destination of the save are selected by pressing the key until the desired parameter is highlighted then turning the knob Source choices include any channel function or the screen Destination choices include off not saved waveform memories multiple memories pixel memories and hardcopy Destination choices available depend on the source currently selected as follows e Channel off nonvolatile memories or multiple e Function off nonvolatile memories or multiple e Screen off pixel memories or hardcopy The type or amount of failure data saved depends on the destination selected HP 54505B 54506B 54510B 545128 Front Panel Reference Note lf a destination is selected and the channel or function is off a message is displayed indicating that the data is invalid and failure data is not stored
192. uropean standard This key selects whether the hardcopy goes to a printer or plotter The oscilloscope sends hardcopy to HP printers and plotters with HP IB options The following printers have been tested with the oscilloscope HP 2225A HP IB ThinkJet HP 2227B QuietJet and HP 3630A Option 002 PaintJet The folowing plotters have been tested with the oscilloscope HP 7440A Option 002 Color Pro HP 7470A Option 002 HP 7475A Option 002 HP 7550A and HP 9872C When plot is selected in device mode three options appear on the menu Initialize before plot can be turned on or off and Graticule Display Factors Labeled or All can be chosen for the plot In the pen field nineteen of the display parameters can be selected Any pen 1 through 8 can be assigned to the parameter for assorted plotter pen colors or weights The following parameters can be selected indicates HP 54506B 54512B only channeli wmemory2 function3 y2marker timebase channel2 wmemory3 function4 ximarker measures channel3 wimemory4 pmemoryl x2marker titles channel function pmemory2 graticule wmemoryl function2 yimarker trigger exit menu Key Pressing exit returns the UTILITY menu to the screen HP 54505B8 54506B 54510B 54512B Utility Menu Front Panel Reference 12 3 SELFTEST MENU RU Tor acq misc loop Utility Menu 12 4 The oscilloscope is designed to perform internal diagnostics This selftest submenu tests the oscilloscope to give a hi
193. ve the graticule showing the point or points that failed the test The compare test will run only on 500 or 501 point records In the compare mode the 16 bit words in the memory and channel buffers are directly compared to the pulse mask memories Since the compare is performed on the 16 bit unscaled data this test is faster than the limit test It is important that the test be set up so the upper mask is in memory mi for memory pair ml amp m2 or memory 3 for memory pair m3 amp m4 The lower mask must be in memory m2 for memory pair m1 amp m2 or m3 for memory pair m3 amp m4 If the masks are stored to the reverse of the memory pairs the test will fail The test key toggles the compare test routine on or off When the test is turned on the oscilloscope compares the input channel waveform against the selected memory pair PASS or FAIL is displayed when the test is complete If the test fails the failed points are displayed above the graticule at the point of failure HP 54505B 54506B 54510B 54512B Front Panel Reference Error Messages PASS channel waveform is contained in the memory pair FAIL channel waveform is not contained in the memory pair and the allowance value Test has failed or the memory pair contents could be reversed upper waveform in memory 2 or 4 and lower waveforms in memory 1 or 3 Er 0 invalid data in channel CLEAR DISPLAY has been pressed or a setting such as s div V div etc has been changed t
194. veform record length is Real Time 8000 points Repetitive 500 points HP 54505B 54506B 54510B 54512B General Information Front Panel Reference B 5 Horizontal Trigger Time Base Range 1 ns divto 5 s div Time Base Resolution 20 ps Delay Range posttrigger 10 000 x s div Delay Range Time di pretrigger 100 ns 5 s div 160 x s div 1 ns 50 ns div 16 us HP 54505B 54506B 8 us HP 54510B 54512B Trigger Pulse Width minimum internal 1 75 ns External 2 8 ns Trigger Level Range internal 1 5 x full scale from center of screen External 2 V Characteristics Vertical General information B 6 The following are operating characteristics of the Digitizing Oscilloscope Deflection Factors Allinput channels With single screen selected deflection factors are adjustable from 1 mV div to 5 V div in a 1 2 5 sequence with the knob Fully calibrated vernier adjustments can be made using direct keypad entry or the knob with the FINE key selected Probe Attenuation Factors Values from 0 9 to 1000 may be entered to scale the oscilloscope for external probes or attenuators attached to the channel inputs When probe tip calibration is done this value is calculated automatically HP 545058 54506B 54510B 545128 Front Panel Reference Input Impedance 1 MQ or 50 selectable for any channel and the HP 54505B 54510B EXT TRIG Bandwidth Limit HF Reject Provides low pass filter with a
195. viously defined using the TIMEBASE menu and captured using the RUN key segments Refer to Chapter 4 for additional information DISPLAY nom avg segment source of screens off frame axes grid of segments source 8 of Screens ott frame axes grid connect dots exclude more include exclude include from seg to seg enter changes execute all changes more Figure 7 6 Realtime Acq Mode seg on Display Menu HP 54505B 54506B 54510B 54512B Front Panel Reference All measurements waveform math functions and pan and zoom features are available when displaying the previously captured segments Refer to the appropriate chapters in this manual for more information Note that data interpolation does not occur in sequential single shot mode NOTE This specific oscilloscope setup is referred to as Sequential Single shot throughout the remainder of this manual Display Mode Key The DISPLAY mode key selects one of three display modes e normal e averaged e envelope norm The norm mode allows each captured segment to be viewed individually The segments that can be viewed are determined by the include exclude E hee When norm is selected the function key beneath the norm field is activated This field displays the current segment number being viewed and can be set using the knob or keypad Selecting a segment larger than the maximum captured will cause the display to enter in
196. w used during average and envelope modes HP 54505B 54506B 54510B 54512B Display Menu Front Panel Reference 7 13 from seg Key to seg Key enter changes Key execute ali changes Key more Key Display Menu 7 14 Note All segments are initially acquired as included A list of currently included segments are shown on the bottom left of the screen along with a counter showing the current segment being used in average envelope or normal when all segments is selected mode This key is used to specify the beginning segment number when entering the range of segments to be excluded or included from display operations Press key to highlight field then use the keypad or knob to enter desired value Any positive value within the number of segments currently acquired can be entered however the from seg entry cannot exceed the te seg entry Bottom of the key displays the source currently selected This key is used to specify the ending segment number when entering the range of segments to be excluded or included from display operations Press key to highlight field then use the keypad or knob to enter desired value Any positive value within the number of segments currently acquired can be entered however the te seg entry cannot preceed the from seg entry Bottom of the key displays the maximum number of segments acquired Pressing this key enters the currently selected exclude include from seg and to seg
197. x Vmax voltage of the maximum point on screen Y min Y min voltage of the minimum point on screen Vp p Vp p Vmax Vmin HP 54505B 545068 54510B 54512B Algorithms Front Panel Reference A 5 Viop Viop most prevalent point above waveform midpoint Vbase Vbase most prevalent point below waveform midpoint Vamp Vamp Vtop Vbase Vavg Average voltage of the first cycle of the displayed signal is measured If a complete cycle is not present the oscilloscope averages ali data points Vims The rms voltage of the first cycle of the displayed signal is measured If a complete cycle is not present the measurement computes rms on all data points Either ac or dc rms value can be selected in the measure submenu of the Define Measure menu The acrms calculation removes the dc component 1 2 UN 1 yo 1 j Vems ac 2 5 gd 2 n ea j jo Ld Vrms de QU j2 j integrate n 1 i 0 The equation is the integral of the channel where I represents the integral and C represents the channel The integral is calculated by adding voltage points multiplied by the time bucket width At Algorithms HP 54505B 545068 545108 545128 A 6 Front Panel Reference Differentiate d 0 Cn C n an E A The equation 1s the differential waveform of the channel where d represents the differential and c represents the channel The differential is the voltage differences between consecutive points in time divided b
198. y the time bucket width At HP 54505B 54506B 54510B 54512B Algorithms o Front Panel Reference AT instrument Description The HP 54505B HP 54506B HP 54510B and HP 54512B Digitizing Oscilloscopes are general purpose oscilloscopes with 300 MHz bandwidth The HP 54505B 54510B have two input channels and an external trigger input while the HP 54506B 54512B have four input channels The HP 54505B 54506B can digitize at a maximum rate of 500 Msa s while the HP 54510B 54512B can digitize at a maximum rate of 1 Gsa s Each oscilloscope can simultaneously digitize any input channel each with 8000 samples of memory All channels have 1 mV to 5 V div sensitivity Channel trigger input impedance is 1 MQ or 50 Q switchable The time base provides sweep speeds from 1 ns to 5 s div in a 1 2 5 sequence Pan and zoom can be used to expand a displayed waveform for a detailed view All channels and the external trigger can be combined triggers for complex triggering functions The oscilloscope has an Autoscale feature 17 automatic pulse parameter measurements and easy waveform storage It has full programmability over the HP IB and when set up with a printer or plotter the oscilloscope provides instant hardcopy output Accessories The following accessories are supplied with the oscilloscope Supplied e Two HP 54505B 54510B or four HP 54506B 54512B HP 10441A miniature passive probes e One miniature probe to BNC male adapter HP 125

HP Sprinkler 54505B User's Manual

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