Home

DPO4000 Series Digital Phosphor Oscilloscopes User Manual

Contents

1. 1785 027 DPO4000 Series User Manual Get Acquainted with the Instrument 5 Host Use the USB 2 0 Full speed host ports two to take advantage of USB mass storage devices and printers 6 Power input Attach to an AC power line with integral safety ground See page 6 Operating Considerations DPO4000 Series User Manual 69 Acquire the Signal Acquire the Signal This section describes concepts of and procedures for setting up the oscilloscope to acquire the signal as you want it to Setting Up Signal Input Use front panel buttons to set up your instrument to acquire the signal 1 Connect the P6139A or VPI probe to the input signal source O08 00 e3 9000 0 0 Q on Ve DUUUDU 1785 028 70 DPO4000 Series User Manual Acquire the Signal 2 Select the input channel by pushing the front panel buttons NOTE If you are using a probe that does not supply probe encoding not a P6139A nor a VPI probe set the attenuation probe factor on the oscilloscope side bezel menu 3 Push Autoset 1785 010 DPO4000 Series User Manual 71 Acquire the Signal 4 Push the desired channel button Then adjust the vertical position and scale 5 Adjust the horizon
2. Accessory Tektronix part number DPO4000 User Manual English Option LO 071 1785 XX French Option L1 071 1799 XX Italian Option L2 071 1800 XX German Option L3 071 1801 XX Spanish Option L4 071 1802 XX Japanese Option L5 071 1803 XX Portuguese Option L6 071 1804 XX Simple Chinese Option L7 071 1805 XX Traditional Chinese Option L8 071 1806 XX Korean Option L9 071 1807 XX Russian Option L10 071 1808 XX DPO4000 Series User Manual Installation Standard Accessories cont Accessory Tektronix part number DPO4000 Documentation Browser CD Electronic versions of DPO4000 documents 063 1810 XX including the Programmer Manual and the Technical Reference OpenChoice Desktop CD Applications that let you capture and transfer data 020 2514 XX from your oscilloscope to an external PC Use the standalone OpenChoice Desktop MS Word or MS Excel Toolbars Calibration certificate documenting traceability to national metrology institute s and IS09001 quality system registration One 500 MHz 10x passive probe per channel P6139A Front Cover Hard plastic cover to help protect the instrument 200 4908 00 CompactFlash memory card Extra storage 156 9413 00 DPO4000 Series User Manual Standard Accessories cont Installation Accessory Tektronix part number Power Cord North America Option A0 161 0104 00 Universal Euro Option A1 161 0104 06 United Kingdom Opt
3. 3 Push Snapshot All Measurements Siapio O surements 4 View results Snapshot on 1 Period 588 0 ns Freq 1 701 MHz Width 529 7 ns Width 58 33 ns BrstW 39 91 us Rise 2 014 us Fall 1 522 us DPO4000 Series User Manual 141 Analyze Waveform Data Reference Levels Reference levels determine how time related measurements are taken For example they are used in calculating rise and fall times 1 Push Measure 1785 047 2 Push Reference Levels Select Remove Gating Statistics RARA Indicators Configure Measure Measure Levels Cursors ment ment 142 DPO4000 Series User Manual 3 Set the levels from the side bezel menu Use High and Low reference to calculate rise and fall times Use Mid reference primarily for measurements between edges such as pulse widths DPO4000 Series User Manual Reference Levels Set Levels in units High Ref a 90 0 Mid Ref a 50 0 b 50 0 Low Ref a 10 0 more 1 of 2 Analyze Waveform Data 143 Analyze Waveform Data Taking Manual Measurements with Cursors Cursors are on screen markers that you position in the waveform display to take manual measurements on acquired data They appear as horizontal and or as vertical lines To use cursors 1 Push Cursors Cursors This changes the cursor state The three i O states are No cursors appear on the screen 1
4. Removing a Reference Waveform from the Display To remove a reference waveform from the display 4O 1785 051 1 Push Ref R 2 Push the R1 R2 R3 or R4 screen button to R 1 On R 2 Off R 3 Off R 4 Off select a reference waveform 3 Push the front panel Ref or the appropriate lower bezel R button again to remove the reference waveform from the display The reference waveform is still in nonvolatile memory and can be displayed again DPO4000 Series User Manual 183 Save and Recall Information Saving and Recalling Setups Setup information includes acquisition information such as vertical horizontal trigger cursor and measurement information It does not include communications information such as GPIB addresses To save the setup information 1 Push Save Recall Menu 2 Push Save Setup or Recall Setup from the lower bezel menu 184 Save Screen Image Save Waveform Save Setup Recall Waveform Recall Setup Assign Save to Setup File Utilities DPO4000 Series User Manual 3 From the resulting side bezel menu select the location to save the setup to or to recall it from To save setup information to one of the ten internal setup memories in the oscilloscope push the appropriate side bezel button To save setup information to a CompactFlash or USB file push the To Fi
5. Measurement Description Mean F l The arithmetic mean over the entire waveform or gated region Cycle Mean AF The arithmetic mean over the first cycle in the waveform or the first cycle in the gated region RMS KPEE The true Root Mean Square voltage over the entire waveform or gated region IV Cycle RMS ahh The true Root Mean Square voltage over the first cycle in the waveform or the first cycle in the gated region RMS voltage gt Voltage peak to peak Zero volts 1785 083 DPO4000 Series User Manual 135 Analyze Waveform Data Miscellaneous Measurements Measurement Description Area Area measurement is a voltage over time measurement It returns the area over the entire Pana waveform or gated region in volt seconds Area measured above ground is positive area measured below ground is negative Cycle Area m A voltage over time measurement The measurement is the area over the first cycle in the 7 y waveform or the first cycle in the gated region expressed in volt seconds The area above the common reference point is positive while the area below the common reference point is negative 136 DPO4000 Series User Manual Analyze Waveform Data Customizing an Automatic Measurement You can customize automatic measurements by using gating modifying measurement statistics adjusting the measurement reference levels or taking a snapshot Gating
6. Bus muur LOU Waveforms ANN PAAL Bus and Waveforms Event Table On Off De pe n DPO4000 Series User Manual Acquire the Signal Sample waveforms Sample event table A006 pens Dade Ds pepe e606 Deps De paps X 8 Push Bus Decode and the desired side bezel menu choice to display the bus data in hexadecimal or binary format 9 Turn multipurpose knob a to move the bus display up or down on the screen DPO4000 Series User Manual 89 Acquire the Signal You can also trigger on packet level information on your serial bus See page 102 Triggering on Buses NOTE To acquire signals from two buses simultaneously use this procedure once to define the parameters of the B1 bus and again to define the B2 bus 90 DPO4000 Series User Manual Trigger Setup and Run Trigger Setup and Run This section contains concepts and procedures for setting up the oscilloscope to trigger on your signal Triggering Concepts Trigger Event The trigger event establishes the time reference point in the waveform record All waveform record data is located in time with respect to that point The instrument continuously acquires and retains enough sample points to fill the pretrigger portion of the waveform record That is the part of the waveform that is displayed before or to the left of the triggering event on screen When a trigger event occurs the instrument starts acquiring sa
7. ED amp L 1785 089 48 DPO4000 Series User Manual Using the Menu Buttons Get Acquainted with the Instrument Use the menu buttons to perform many functions in the oscilloscope 1 Measure Push to perform automated measurements on waveforms or to configure cursors Search Push to search through an acquisition for user defined events criteria Test Push to activate advanced or application specific testing features Acquire Push to set the acquisition mode and adjust the record length Autoset Push to perform an automatic setup of oscilloscope settings Trigger Menu Push to specify trigger settings DPO4000 Series User Manual Geel 0000 1785 016 49 Get Acquainted with the Instrument 7 10 50 Utility Push to activate the system utility functions such as selecting a language or setting the date time Default Setup Push to restore the oscilloscope to the default settings Save Recall Menu Push to save and recall setups waveforms and screen images to internal memory a CompactFlash card or a USB storage device Channel 1 2 3 or 4 Push to set vertical parameters for input waveforms and to display or remove the corresponding waveform from the display A
8. 1 Push Trigger Menu lt a en 1785 042 DPO4000 Series User Manual 107 Trigger Setup and Run 2 Press Type repeatedly to select a trigger type of Edge 3 Push Configure B Trigger This brings up the lm Source Coupling Slope Level Mode Configure B trigger menu Type ra 0 00 V The B Trigger Setup item only appears if the Edge i A trigger is set to edge trigger 4 Set the B trigger parameters as defined in the B Trigger B Trigger Source Coupling Slope Level cate B trigger lower bezel and side bezel menu After A 0 00V rigger items Time 108 DPO4000 Series User Manual Trigger Setup and Run Trigger on B Event The A trigger arms the instrument Posttrigger Pretrigger record Posttrigger record acquisition starts on the nth B event A trigger point Acquired H waveform record gt Aore UU B trigger source Waiting for the nth event B trigger point Where n 5 DPO4000 Series User Manual 109 Trigger Setup and Run B Trigger After Delay Time The A trigger arms the instrument Posttrigger acquisition starts on the first B edge after the trigger delay time Quick Tips A trigger point A tigger source YU UUU UU B trigger source Ae bea i B trigger point elay time B trigger delay time and horizontal position are independent functions When you establish a trigger condition using either the A trigger
9. 24 Vertical Scale Turn to adjust the vertical scale factor of the corresponding waveform volts division 25 Print Push to initiate a hard copy using the printer selected in the Utility menu 26 Power switch Push to power on or off the Ss instrument 7 OUUUUUU DU y lo Tae how EF Gin a 1785 025 DPO4000 Series User Manual 57 Get Acquainted with the Instrument 58 27 28 29 30 31 32 USB 2 0 host port Insert a USB cable here to connect peripherals such as printers and storage devices to the oscilloscope There are also two more USB 2 0 host ports on the rear panel CompactFlash Drive Insert a CompactFlash card here CompactFlash Eject Pops the CompactFlash card out of the CompactFlash drive Save Push to perform an immediate save operation The save operation uses the current save parameters as defined in the Save Recall menu Default Setup Push to perform an immediate restore of the oscilloscope to the default settings Menu Off Push to clear a displayed menu from the screen DPO4000 Series User Manual Identifying Items in the Display The items shown to the right may appear in the display Not all of these items are visible at any given time Some readouts move outside the graticule area when menus are turned off DPO4000 Series User Manual Get Acquainted with the Instrument Auto O 16 0us 22 4mv
10. 3 Use the side bezel menu and the multipurpose R1 knobs to adjust the vertical and horizontal settings of the reference waveform b 100 mV div Horizontal 0 00 s 4 00 us div Vertical a 0 00 div Quick Tips Selecting and Displaying Reference Waveforms You can display all the reference waveforms at the same time Push the appropriate screen button to select a particular reference waveform The selected waveform appears brighter than other displayed reference waveforms Removing Reference Waveforms from the Display To remove a reference waveform from the display push the front panel R button to access the lower bezel menu Then push the associated button from the lower bezel menu to turn it off Scaling and Positioning a Reference Waveform You can position and scale a reference waveform independently from all other displayed waveforms Select the reference waveform and then adjust it with a multipurpose knob You can do this whether acquisition is running or not DPO4000 Series User Manual 161 Analyze Waveform Data If a reference waveform is selected scaling and repositioning of the reference waveform operates the same way whether zoom is turned on or off Saving 10M Reference Waveforms 10M reference waveforms are volatile and not saved when the oscilloscope power is turned off To keep these waveforms save them to external storage Recalling Reference Waveforms from External Storage 162 DPO4000
11. 02 0 cccccececeee ee E E e ete rN A eset eee ee es ee tees EEEE EERROR 1 Operating Considerations nense cece skeri eee ee nen EEE EEE EEE EE EE EASED EEG E DERE E EDAD EEG EEC EG EGE EG EGE EAE DEDEDE EEE 6 Connecting Probes enirere eis Aveda deed vO Saeed ade aunt vated Gio bedi ea ee 10 Powering On the Oscilloscope ss nsnnesnsnrrrrrerrrrrrttttr rtr at ttrt rrr AEAEE AEEEEEEEEEEEEEEEE PEENE EEEEEEEEEE EEEE E EEEE 11 Powering Off the Oscilloscope 10 0 cece cece cece e eee een nee EEE A EEE EE EEE DERE E DADE EEDA DEED ET EEE SEES EGE D EEE SESE DEE ES 14 Functional Check sirenaren ninr cee e cent EE ENR nese t anaes tetas E E AE TAEA EERE 15 Compensating the Probe ccccccc cece cence eee eee rrtt rrtt rttr trr EEE EERE DEDEDE SESE DEST EEDA EE ED EEE EDAD EEE EE DEERE EE EEEE 17 Installing an Application MOdUle ce cece eee ec eect eee e nett eee e eee ee ee eee ea eee ee ene eaeeeeaeeeeaeeeeeneegeeeeaeaes 19 Changihgithe User Interface Language ss as iaidieesciines Saved eed reds i EET ER TOEA EE radians TEENETEST IEN 20 Changingithe Date and TIME 2 eisesiosc fy Sielaces tases ter E ir feist a tered denen ovees a EAEra denies eee eee 23 Signal Path Compensation cccc cece cece e eee eee nen EEE EE EE EEE E EEE EE EGET EE EEE E EEE EEE E DEDEDE EE EE DEE EE EE EES 25 Upgrading FirmWale cas stscdd assichaaeaadd a E E AAE AE O E ERE E AOE RERA OEE AETR ES 28 Connecting Your Oscilloscope to a Co
12. oloo Jre o o os E de ell 1785 004 14 DPO4000 Series User Manual Installation Functional Check Perform this quick functional check to verify that your oscilloscope is operating correctly 1 Connect the oscilloscope power cable as described above 2 Power on the oscilloscope n TS H e ogggg 1785 012 DPO4000 Series User Manual 15 Installation 3 Connect the oscilloscope P6139A probe tip and reference lead to the PROBE COMP connectors 4 Press Default Setup O eap g la 6 o O Boo oe oo O O Po 00o prererala 00e 010 0 0 o0 UUQDDUGAUGAD E c cape 1785 007 Default Setup 1785 032 DPO4000 Series User Manual Installation 5 Push the Autoset button The screen should now display a square wave approximately 2 5 V at 1 kHz If the signal appears but is misshapen LEALL perform the procedures for compensating the probe See page 17 Compensating the Probe eb oo l p If no signal appears rerun the procedure 2 If it no signal still appears have the instrument serviced by qualified service personnel Guess TERR PO00 6 1785 008 Compensating the P
13. DPO4000 Series User Manual Save and Recall Information Save Screen Image 3 From the side bezel menu push File Format File Format repeatedly to select among tif bmp and png png formats 4 Push Orientation to select between saving Orientation the image in a landscape horizontal and a oa portrait vertical orientation 5 Push Ink Saver to turn the Ink Saver mode on Ink Saver or off When on this mode provides a white On Off background 6 Push Edit File Name to create a custom name ae File for the screen image file Skip this step to use os a default name eee6e 7 Push OK Save Screen Image to write the oK Save image to the selected media image DPO4000 Series User Manual 175 Save and Recall Information For information on printing screen images of waveforms go to Printing a Hardcopy See page 189 Printing a Hard Copy Saving and Recalling Waveform Data Waveform data consists of the numeric values for each point in the waveform It copies the data as opposed to a graphical image of the screen To save the current waveform data or to recall previously stored waveform data 1785 056 2 Push Save Waveform or Recall Waveform a Save Setup Recall Recall Assign File Utilities from the lower bezel menu image EMBU aveto Supi aae o 1 Push Save Recall Menu 176 DPO4000 Series User Manual Save and Recall Information 3 From the resulting side b
14. Inputs Decode wv RO ae 86 DPO4000 Series User Manual Acquire the Signal For each signal that makes up the serial bus push the appropriate side bezel menu button Then turn the appropriate multipurpose knob f Multi to define the voltage level above which the URW Rose oscilloscope treats the signal as high and below which as low 5 If you selected CAN above push Bit Rate and Bus Defne Thresholds BitRate Display As KEH the desired side bezel menu choice CAN ape psg 6 If you selected SPI above push Polarity and Bus pene Thresholds Display As a the desired side bezel menu choice SPI nputs Bus erat Active High means when a signal is greater than the threshold value it is considered a logical 1 Active Low means when the signal is lower than the threshold value it is considered a logical 1 DPO4000 Series User Manual 87 Acquire the Signal 7 Push Display As and use the side bezel menu to define how to display the serial bus Push Bus to display packet level information decoded for easy visual inspection much like what you would see on a logic analyzer Push Waveforms to display the digital high or low representations of the waveforms Push Bus and Waveforms to display both views of the signal Push Event Table On to display a list of packets in the bus Sample bus information 88 Display As
15. O 8 00us 20 4mV i A24 0us A 1 60mv rae 9 1785 151 59 Get Acquainted with the Instrument 60 The acquisition readout shows when an RUN acquisition is running stopped or when acquisition preview is in effect Icons are Run Acquisitions enabled Stop Acquisitions not enabled Roll In roll mode 40 ms div or slower PreVu In this state the oscilloscope is stopped or between triggers You can change the horizontal or vertical position or scale to see approximately what the next acquisition will look like DPO4000 Series User Manual 2 The trigger position icon shows the trigger position in the acquisition 3 The expansion point icon an orange triangle shows the point that the horizontal scale expands and compresses around 4 The waveform record view shows the trigger location relative to the waveform record The line color corresponds to the selected waveform color DPO4000 Series User Manual Get Acquainted with the Instrument 1785 126 T 1785 141 Run 2 Auto 1785 142 61 Get Acquainted with the Instrument 5 The trigger status readout shows trigger status Status conditions are Trig d Triggered Auto Acquiring untriggered signal m PrTrig Acquiring pretrigger data Trig Waiting for trigger 6 The cursor readout shows time amplitude and delta A values for each cursor For FFT measurements
16. 3 Push Configure Cursors Select Measure ment Remove Measure ment Gating Statistics Reference Levels Indicators Configure Cursors DPO4000 Series User Manual 223 Application Examples 224 Push Vertical Bar Units repeatedly to select venea Bar Hz 1 s maS Hz 1 8 Push Cursors repeatedly until the two vertical Cursors bar cursors appear on the selected waveform A O Place one cursor on the first peak of the ring using multipurpose knob a Multipurpose 1785 039 If the cursor readout says that the cursors are linked push Select to unlink them Ga DPO4000 Series User Manual Application Examples 8 Place the other cursor on the next peak of the ring using multipurpose knob b Multipurpose 1785 160 9 The cursor A readout shows the measured ring frequency is 227 kHz f ee 4 A 227KHZ 1785 169 DPO4000 Series User Manual 225 Application Examples Triggering on a Video Signal 226 The DPO4000 Series of oscilloscopes supports triggering on NTSC SECAM and PAL signals In this example you are testing the video circuit in a piece of medical equipment and need to display the video output signal The video output is an NTSC standard signal Use the video signal to obtain a stable display 1785 079 To trigger on the video fi
17. Gating confines the measurement to a certain portion of a waveform To use 1 Push Measure 1785 047 2 Push Gating Select Remove Gating Statistics Reference Indicators Configure Measure Measure Levels Cursors ment ment DPO4000 Series User Manual 137 Analyze Waveform Data 3 Position the gates from the side bezel menu Gating options VW Off Full record Wh Screen Between cursors Bring cursors on screen 138 DPO4000 Series User Manual Analyze Waveform Data Statistics Statistics characterize the stability of measurements To adjust statistics 1 Push Measure 1785 047 2 Push Statistics Select Remove Gating SAKIY Reference Indicators Configure Measure Measure Off Levels Cursors ment ment DPO4000 Series User Manual 139 Analyze Waveform Data 3 Push the side bezel menu options These Leen td include whether to turn statistics on or off ee and how many samples to use for mean and On Off standard deviation calculations Mean amp Std Dev Samples a 32 Reset Statistics Snapshot To see all the single sourced measurements at one moment in time 1 Push Measure 1785 047 140 DPO4000 Series User Manual Analyze Waveform Data 2 Push Select Measurement Select Remove Gating Off Statistics oe Reference Indicators Imeasure Measure Off etup Levels off ment ment
18. P af ee ee Average DPO4000 Series User Manual 81 Acquire the Signal 4 If you chose Average turn multipurpose knob a to set the number of waveforms to average over Multipurpose 1785 039 5 Push Record Length 6 Push the side bezel menu record length button Choose between 1000 10 k 100 k 1 M and 10 M points 82 DPO4000 Series User Manual Acquire the Signal Using Roll Mode Roll mode gives a display similar to a strip chart recorder for low frequency signals Roll mode lets you see acquired data points without waiting for the acquisition of a complete waveform record Roll mode is enabled when the trigger mode is auto and the horizontal scale is set to 40 ms div or slower Quick Tips Switching to Envelope or Average acquisition mode using math waveforms or switching to normal trigger will disable Roll mode Roll mode is disabled when you set the horizontal scale to 20 ms per division or faster lt gt Run Stop 1785 040 Push Run Stop to halt Roll mode DPO4000 Series User Manual 83 Acquire the Signal Defining a Serial Bus 84 Your DPO4000 oscilloscope can trigger on 12C and SPI serial buses if the DPO4EMBD application module is installed It can trigger on CAN serial buses if the DPO4AUTO application module is installed It can display the physical layer of a bus as analog waveforms digital waveforms and protocol level informati
19. 1 MQ The maximum input voltage at the BNC between center conductor and shield is 400 Voeak DF lt 39 2 250 Vams to 2 MHz derated to 5 Vams at 500 MHz The maximum transient withstand voltage is 800 Vpeax For steady state sinosoidal waveforms derate at 20 dB decade above 200 kHz to 13 Vea at 3 MHz and above P6139A Passive Probe Input Voltage 400 Vrus or 400 V DC CAT 2 500 Vpcax transient 300 Vrus or 300 V DC CAT II 2 500 Vpeak transient 150 Vrms or 150 V DC CAT III 2 500 Vp ax transient For steady state sinusoidal waveforms derate at 20 dB decade above 2 5 MHz to 50 Vams at 20 MHz and above Output Voltage terminated into 1 MQ 40 Vrus or 40 V DC CAT I 2 500 Vpeak impulse 30 Vems or 30 V DC CAT 250 V peak impulse 15 Vrus or 15 V DC CAT I 250 Vpeak impulse Temperature Operating 15 C to 65 C 5 F to 149 F Nonoperating 62 C to 85 C 80 F to 185 F Altitude lt 2 000 meters 8 DPO4000 Series User Manual Installation Pollution Degree 2 Indoor use only Humidity Operating High 40 C to 50 C 10 to 60 RH Operating Low 0 C to 40 C 10 to 90 RH A CAUTION To ensure proper cooling keep the sides and rear of the instrument clear of obstructions Cleaning Inspect the oscilloscope and probes as often as operating conditions require To clean the exterior surface perform the following steps 1 Remove loose dust on the outside of the osc
20. 182 saving 10M waveforms 162 Related documents xii Removing reference waveforms 183 Removing reference waveforms 161 Removing waveform 112 Rise Fall trigger defined 101 Roll mode 83 Run Stop button 56 83 111 Runt trigger defined 100 S Safety Summary v Sample acquisition mode 78 248 Sample rates x Sampling process defined 75 Sampling real time 76 Save Recall menu 50 58 174 Save Recall Menu button 50 Save Recall Save button 58 174 Saving reference waveforms 182 screen images 174 waveforms 174 Saving and recalling Information 174 Saving setups 184 Scale Horizontal 55 120 156 227 229 230 234 Vertical 121 230 Search 169 Search Mark 238 Search button 49 170 Securing DPO4000 memory 196 Select button 53 224 Sequential triggering 107 Serial 84 102 238 Service information xiii Set Clear Mark button 55 169 Set to 50 button 56 97 Setup default 58 187 Default 73 Setup and Hold trigger defined 101 Side panel connector 67 Signal path compensation 25 Single button 56 111 213 232 Single sequence 83 111 Slope trigger 96 Snapshot 140 Software drivers 35 39 Software optional 200 SPC 25 Specifications xii operating 6 power supply 11 SPI 51 84 102 Spreadsheet file format CSV 182 Start an acquisition 111 Statistics 139 Stop an acquisition 111 Switch power 57 T Table Event 88 89 TDSPCS1 35 DPO4000 Series User
21. 2 Push System repeatedly until you select Display 3 Push Backlight Intensity 4 Select the intensity level from the resulting side bezel menu Choices are High Medium and Low DPO4000 Series User Manual Display Waveform Data DEJEM y NN Backlight Graticule Intensity Full System Display Backlight Intensity High Medium Low 119 Display Waveform Data Scaling and Positioning a Waveform Use the horizontal controls to adjust the time base adjust the trigger point and to examine waveform details more closely o 00 1785 065 1785 120 1785 123 1785 124 Original waveform Scaled horizontally Positioned horizontally 120 DPO4000 Series User Manual Display Waveform Data Use the vertical controls to select waveforms adjust the waveform vertical position and scale and set input parameters Push a channel button 1 2 3 or 4 the MATH button or the REF button or the B1 or B2 button as many times as needed and the associated menu items to select add or remove a waveform 0006 1785 119 1785 120 1785 121 1785 122 Original waveform Scaled v
22. Installation Accessory Tektronix Part Number CompactFlash memory card Extra storage 156 9413 00 CompactFlash to USB memory card reader Card reader 119 6827 00 DPO4000 Programmer Manual Describes commands for remote control of the 071 1845 XX DP0O4000 oscilloscope Available electronically on the Documentation Browser CD or for download from www tektronix com DPO4000 Technical Reference Manual Describes the DPO4000 oscilloscope 071 1809 XX specifications and performance verification procedure Available electronically on the Documentation Browser CD or for download from www tektronix com DPO4000 Service manual Service information 071 1844 XX DPO4000 Module Installation Instructions Manual 071 1833 XX The DPO4000 oscilloscope works with multiple optional probes See page 10 Connecting Probes Check the Tektronix Web site www tektronix com for the most current information DPO4000 Series User Manual Installation Operating Considerations DPO4000 Series Oscilloscope pa oo e e oF Input Voltage 100 V to 240 V 10 Input Power Frequency 47 Hz to 66 Hz 100 V to 240 V 400 Hz 100 V to 132 V Power Consumption 250 W maximum Weight 5 kg 11 Ibs stand alone instrument Height including feet but not handle 229 mm 9 0 in 2 ouuuvuuvuuvuU Width from handle hub to handle hub 439 mm a p anw ese 17 3 in 1785 001 Depth from feet to front of knobs 137 mm 5 4 in De
23. it shows frequency and magnitude 62 Trig d 16 0us 22 4mV O 8 00us 20 4mvV A 24 0us A 1 60mV 1785 134 DPO4000 Series User Manual Get Acquainted with the Instrument 7 The trigger level icon shows the trigger level on the waveform The icon color corresponds to the trigger source channel color 1785 143 8 The edge trigger readout shows the trigger source slope and level The trigger 0 00 V readouts for other trigger types show other parameters 1785 135 9 The top line of the record length sampling 250MS s rate readout shows the sampling rate 10k points adjust with the Horizontal Scale knob p The bottom line shows the record length ee adjust with the Acquire menu DPO4000 Series User Manual 63 Get Acquainted with the Instrument 10 The horizontal position scale readout 11 12 64 shows on the top line the horizontal scale adjust with the Horizontal Scale knob and on the bottom line the time from the T symbol to the expansion point icon adjust with the Horizontal Position knob Use horizontal position to insert added delay between when the trigger occurs and when you actually capture the data Insert a negative time to capture more pretrigger information The auxiliary waveform readouts show the vertical and horizontal scale factors of the math or reference waveforms The channel readout shows the channel scale factor per division co
24. oO lt o a D Intensity O 1785 062 Application Examples 219 Application Examples 220 5 View the results on the display Peak detect emphasizes noise spikes and glitches in your signal as narrow as 1 ns even when the time base is set to a slow setting 1785 174 DPO4000 Series User Manual Application Examples Peak detect and the other acquisition modes are explained earlier in this manual See page 75 Acquisition Concepts Separating the Signal from Noise Now you want to analyze the signal shape and ignore the noise To reduce random noise in the oscilloscope display 1 Push Acquire 1785 046 2 Push Mode Mode Record Reset Waveform Length Horizontal Display Position 3 Push Average on the side bezel menu P DPO4000 Series User Manual Average 221 Application Examples 222 Averaging reduces random noise and makes it easier to see detail in a signal In the example to the right a ring shows on the rising and falling edges of the signal when the noise is removed 1785 176 DPO4000 Series User Manual Taking Cursor Measurements Application Examples You can use the cursors to take quick measurements on a waveform To measure the ring frequency at the rising edge of the signal 1 Push channel 1 to select the channel 1 signal 2 Push Measure 1785 033 T Measure 1785 047
25. the appropriate USB or Ethemet cable To communicate between the DPO4000 and a GPIB system connect the oscilloscope to the TEK USB 488 GPIB to USB Adapter with a USB cable Then connect the adapter to your GPIB system with a GPIB cable E E J 1785 167 DPO4000 Series User Manual 3 Push Utility 4 Push System repeatedly to select I O 5 To use Ethernet push Ethernet Network Settings DPO4000 Series User Manual Installation 1785 011 Ethernet GPIB Network fabled Settings I 37 Installation 38 On the side bezel menu if you are on a DHCP Ethernet network and using a through cable set DHCP to On If you are using a cross over cable set it to Off and set a hard coded TCPIP address If you are using GPIB push GPIB Enter the GPIB address on the side bezel menu using multipurpose knob a This will set the GPIB address on an attached TEK USB 488 Adapter Network Configura tion Change Instrument Settings DHCP BOOTP On Off Test Connection Talk Listen Address a DPO4000 Series User Manual Installation 8 If you are using USB the system sets itself up automatically for you if USB is enabled Check USB on the bottom bezel menu to be sure that USB is enabled If it is not enabled p
26. 1785 171 1785 061 DPO4000 Series User Manual Application Examples Optimizing the Acquisition The initial acquisition shows the relay contact beginning to open at the trigger point This is followed by large spikes that indicate contact bounce and inductance in the circuit The inductance can cause contact arcing and premature relay failure Before you take the next acquisition you can adjust the vertical and horizontal controls to give you a preview of how the next acquisition might appear As you adjust these controls the current acquisition is repositioned expanded or compressed This preview is useful to optimize the settings before the next single shot event is captured When the next acquisition is captured with the new vertical and horizontal settings you can see more detail about the relay contact opening You can now see that the contact bounces several times as it opens 1785 173 DPO4000 Series User Manual 233 Application Examples Using the Horizontal Zoom Function To take a close look at a particular point on the acquired waveform use the horizontal zoom function To look closely at the point where the relay contact first begins to open 1 Turn the Zoom knob P am S 1785 069 2 Turn the Pan knob to place the center of the zoom box close to where the relay contact begins to open 3 Turn the Zoom knob to magnify the waveform in the zoom window 234 DPO4000 Ser
27. Default Utility 1785 017 DPO4000 Series User Manual Get Acquainted with the Instrument 11 B1 or B2 Push to define and display a bus if you have the appropriate module w O application keys The DPO4AUTO module supports 12C and SPI em Also push the B1 or B2 button to display vou or remove the corresponding bus from the ae CD easure searen ret X supports CAN The DPO4EMBD module display C Fe oe C 12 R Push to manage reference waveforms o 0 including the display or removal of each D E reference waveform from the display G3 0 o o 13 M Push to manage the math waveform including the display or removal of the math waveform from the display 1785 018 DPO4000 Series User Manual 51 Get Acquainted with the Instrument 52 Using Other Controls These buttons and knobs control waveforms cursors and other data input 1 Turn the upper multipurpose knob a when activated to move a cursor or set a numerical parameter value for a menu item Push the nearby Fine button to toggle between coarse and fine adjustment Screen icons tell you when a or b are active Cursors Push once to activate the two vertical cursors Push again to turn on the two vertical and two horizontal cursors Push again to turn off all cursors When the cursors are on you ca
28. Outer knob 54 Overlay 22 P Pan 164 166 knob 54 166 169 Pause 166 Peak detect acquisition mode 79 Performance verification xii Persistence display 112 infinite 115 variable 115 Play 166 Play pause button 54 167 DPO4000 Series User Manual Play pause mode 167 Pollution Degree DPO4000 7 P6139A 9 Portrait 175 191 Position Horizontal 94 95 120 156 234 235 Vertical 121 Position and offset 128 Posttrigger 91 96 Power cord 3 input 69 off 14 removing 14 supply 11 switch 57 Power consumption DPO4000 6 Predefined math expressions 150 Pretrigger 91 96 Previous button 54 Print 57 189 Printing a hard copy 189 Printing Ethernet 192 Probe Comp 16 Probe compensation 17 Index Probes BNC 10 connecting 10 ground lead 19 TEK USB 488 Adapter 4 TekVPI 10 TPA BNC Adapter 4 10 Programmer Commands xii Pulse Width trigger defined 100 R Rackmount 4 Readout Acquisition 60 Auxiliary 64 Channel 64 Cursor 62 149 Horizontal position scale 64 Record length sampling rate 63 Trigger 63 107 Trigger status 62 Rear panel connectors 68 Recalling setups 184 waveforms 174 Record length x 247 Index Record length sampling rate readout 63 Rectangular FFT window 156 Ref button 51 160 Ref R 182 Reference button 182 Reference levels 142 Reference menu 51 160 161 Reference waveforms 160 displaying 182 removing 161 183 saving
29. Series User Manual Analyze Waveform Data Managing Long Record Length Waveforms The DPO4000 Series Wave Inspector controls zoom pan play pause marks search help you to efficiently work with long record length waveforms To magnify a waveform horizontally rotate the Zoom knob To scroll through a zoomed waveform rotate the Pan knob The Pan Zoom Control consists of lt a 1 An outer pan knob 2 An inner zoom knob 1785 053 DPO4000 Series User Manual 163 Analyze Waveform Data Zooming a Waveform To use zoom 1 Rotate the inner knob on the Pan Zoom control clockwise to zoom in on a selected portion of the waveform Rotate the knob counterclockwise to zoom back out 2 Alternatively enable or disable the zoom mode by pushing the zoom button 164 Om 1785 069 ee 1785 070 6a Ce Set Clear DPO4000 Series User Manual 3 Examine the zoomed view of the waveform that appears on the larger lower portion of the display The upper portion of the display will show the position and size of the zoomed portion in the waveform within the context of the overall record DPO4000 Series User Manual Analyze Waveform Data 1785 154 165 Analyze Waveform Data Panning a Waveform While the zoom feature is on you can use the pan feature to quickly scroll through the waveform To use pan 1 Rotate the pan outer
30. Waveform to File When you push the To File side bezel menu button the oscilloscope changes the side menu contents The following table describes these side bezel menu items for saving data to a mass storage file Side bezel menu button Description Internal File Format ISF Sets the oscilloscope to save waveform data in internal waveform save file isf format This format is the fastest to write and creates the smallest sized file Use this format if you intend to recall a waveform to reference memory for viewing or measuring Spreadsheet File Format Sets the oscilloscope to save waveform data as a comma separated data file compatible with CSV popular spreadsheet programs This file cannot be recalled to reference memory Saving a Waveform to Reference Memory To save a waveform to nonvolatile memory inside the oscilloscope first select the waveform that you want to save Push the Save Waveform screen button Then select one of the reference waveform locations Four channel models have four reference locations Two channel models have two reference locations Saved waveforms contain only the most current acquisition Gray scale information if any is not saved Displaying a Reference Waveform To display a waveform stored in nonvolatile memory 1 Push Ref R Q 1785 051 182 DPO4000 Series User Manual Save and Recall Information 2 Push R1 R2 R3 or R4 R1 On R2 Off R3 Of R4 Off
31. an electrically neutral reference point such as earth ground Do this by plugging the three pronged power cord into an outlet grounded to earth ground Grounding the oscilloscope is necessary for safety and to take accurate measurements The oscilloscope needs to share the same ground as any circuits that you are testing DPO4000 Series User Manual 11 Installation If you are working with static sensitive components ground yourself Static electricity that builds up on your body can damage static sensitive components Wearing a grounding strap safely sends static charges on your body to earth ground 1785 002 DPO4000 Series User Manual Installation To connect the power cord and power on the oscilloscope Le a gt e OUUUDVDIY aaaaai 1785 003 DPO4000 Series User Manual 13 Installation Powering Off the Oscilloscope To power off the oscilloscope and remove the power cord oer Io eS E BNC aao Oo DeeS 6 o olje De o
32. between your Tektronix logic analyzer and oscilloscope using the Add External Oscilloscope wizard To do this 1 Select Add iView External Oscilloscope from the logic analyzer System menu 236 Boo Tools Window Help Run System Ctri R Repetitive Status Monitor Ctrl M System Properties System Trigger System Configuration System Inter probing Repetitive Properties PG Run Properties Symbols Calibration and Diagnostics Lock Data Windows Add Wiew External Oscilloscope Delete View External Oscilloscope Add Data Source Options DPO4000 Series User Manual Application Examples 2 Select your model of oscilloscope Wd View External Oscilloscope The get wizard guda you through the process of correcting you etemal Loge 3 Follow the on screen instructions and then A ieee e ha r omaton I ad through cernactng te logo aralyame to the etenal cealoecepe and erable click Next eae eres identity the model of Tekiona csciloscope that you are adding I Show only erty compatible oscilloscopes Seema cectescce osn a 4 See your Tektronix Logic Analyzer documentation for more information on correlating data between a DPO4000 i Pr EE e EEE S EEEn Series Oscilloscope and a Tektronix Logic Re Tecan EEA Analyzer DPO4000 Series User Manual 237 Application Examples Tracking Down Bus Anomalies In this example you are testing your new 12C circuit So
33. components near DC Use Rectangular for measuring transients or bursts where the signal level before and after the event are nearly equal Also use this window for equal amplitude sine waves with frequencies that are very close and for broadband random noise with a relatively slow varying spectrum Hamming This is a very good window for resolving frequencies that are very close to the same value with somewhat improved amplitude accuracy over the rectangular window It has a slightly better frequency resolution than the Hanning Use Hamming for measuring sine periodic and narrow band random noise This window works on transients or bursts where the signal levels before and after the event are significantly different DPO4000 Series User Manual Analyze Waveform Data Description Window Hanning This is a very good window for measuring amplitude accuracy but less so for resolving frequencies Use Hanning for measuring sine periodic and narrow band random noise This window works on transients or bursts where the signal levels before and after the event are significantly different Blackman Harris This is the best window for measuring the amplitude of frequencies but worst at resolving frequencies Use Blackman Harris for measuring predominantly single frequency waveforms to look for higher order harmonics Using Advanced Math The advanced math feature lets you create a custom math waveform expression that can i
34. desired waveform intensity 3 Rotate multipurpose knob b to select the desired intensity for the graticule and text 4 Push Intensity again to clear the intensity readout from the display 116 Multipurpose 1785 039 Intensity 1785 062 DPO4000 Series User Manual Setting the Graticule Style 1 To set the graticule style push Utility 2 Push System repeatedly until you select DEJEM Display from the pop up menu Display Waveform Data 1785 011 3 Push Graticule from the lower bezel menu gt System Display Backlight Intensity Graticule Full DPO4000 Series User Manual 117 Display Waveform Data 4 Select the desired style from the resulting Display side bezel menu Graticule Use the Full graticule for quick estimates of waveform parameters Use the Grid graticule for full screen room for automatic readouts and other data Use the Frame graticule with automatic readouts and other screen text when display features are not needed res measurements with cursors and automatic Grid readouts when cross hairs are not needed FA Use the Cross Hair graticule for making quick Cross Hair En estimates of waveforms while leaving more 000G Setting the LCD Backlight 1 Push Utility 1785 011 118 DPO4000 Series User Manual
35. eG tata E DE et E SE DEE GEESE Ea EG Ea EES 112 Setting Waveform and Graticule Intensity cccececee ese eee cnet nent eset ee ee rtr eres eee eG tases DE EEE ESE DE DG EE SE EErEE rE 115 S etting the Graticule Stylewsc lt 2202 45 5068 dek au a chondehae ods unk Sanath niaeeahdcdhdesavearenegidedd A Eaa tats 117 Setting the LCD Backlight 2 2s 2ss c2t0ce assatianesaitacadwe da coded ha atades wi dasd Malideobadaues eas Masta e aA 118 Scaling and Positioning a Waveform cccccec cece eee e eee e eee een e ne nen EEDA EEDA DEED EEE EG EG EASES DEES SEEDED EEE EE EEEE EEE 120 Setting Input Parameters ccc cece eee enn ttrt EAEE EEE EE EEE E EEE EEE EEE DEED DEERE EE EEE EEE EEE EES 122 Analyze Wavetorm Data 3 02 s2c2 es stadedsd cctavaatdnnhes tds dohethng sooed dita ond det tet avs va dtatadods hie aa asad cate dae A 129 Taking Automatic Measurement 0cccc eise ec ee ence teen eee nena etna teen eee eee eens teeta eee ee neste taeeeteeetgeneegenes 129 Selecting Automatic Measurements ccccccec eee c eee e ee ittir tirrr ee nen ADEE EEE DADE EG EEDA EG EG EASE DE EEE ESE DE SESE EE EEEE EE 131 Customizing an Automatic Measurement 0c cece cece cece e eee rene renee ene Arrr EEEE EEEE EEE EDS HEED EEG EE Ea EERE EEE EEE 137 Taking Manual Measurements with Cursors ccccccece cence eee ee eee e eee e eee e teeta seer teed Ene EGE DEES SHEED EE EASA Ea EG EE EES 144 Using Math Waveform Sre
36. record view 61 adding 112 Weight display style 112 DPO4000 6 intensity 115 Width pan 164 166 DPO4000 6 pause 166 play 166 Z play pause 167 record defined 77 removing 112 search and mark 169 user marks 169 zoom 164 Waveform baseline indicator 65 Zoom 164 button 54 graticule size 166 Horizontal 234 knob 54 164 250 DPO4000 Series User Manual
37. used by Tektronix for warranty work may be new or reconditioned to like new performance All replaced parts modules and products become the property of Tektronix In order to obtain service under this warranty Customer must notify Tektronix of the defect before the expiration of the warranty period and make suitable arrangements for the performance of service Customer shall be responsible for packaging and shipping the defective product to the service center designated by Tektronix with shipping charges prepaid Tektronix shall pay for the return of the product to Customer if the shipment is to a location within the country in which the Tektronix service center is located Customer shall be responsible for paying all shipping charges duties taxes and any other charges for products returned to any other locations This warranty shall not apply to any defect failure or damage caused by improper use or improper or inadequate maintenance and care Tektronix shall not be obligated to furnish service under this warranty a to repair damage resulting from attempts by personnel other than Tektronix representatives to install repair or service the product b to repair damage resulting from improper use or connection to incompatible equipment c to repair any damage or malfunction caused by the use of non Tektronix supplies or d to service a product that has been modified or integrated with other products when the effect of such modification or integration
38. 00 DPO4000 Series User Manual 133 Analyze Waveform Data Amplitude Measurements cont Measurement Description Pk Pk ees nee The absolute difference between the maximum and minimum amplitude in the entire i waveform or gated region Amplitude f y The high value less the low value measured over the entire waveform or gated region High ae This value is used as 100 whenever high reference mid reference or low reference J values are needed such as in fall time or rise time measurements Calculate using either the min max or histogram method The min max method uses the maximum value found The histogram method uses the most common value found above the midpoint This value is measured over the entire waveform or gated region Low This value is used as 0 whenever high reference mid reference or low reference values are ELi needed such as in fall time or rise time measurements Calculate using either the min max or histogram method The min max method uses the minimum value found The histogram method uses the most common value found below the midpoint This value is measured over the entire waveform or gated region Max nr The most positive peak voltage Max is measured over the entire waveform or gated region Min eon The most negative peak voltage Min is measured over the entire waveform or gated region 134 DPO4000 Series User Manual Analyze Waveform Data Amplitude Measurements cont
39. 4 Set Clear Mark 55 169 Set to 50 56 97 Single 56 111 213 232 Test 49 Trigger 49 Trigger level 56 Trigger menu 226 Trigger Menu 98 Utility 20 23 26 50 117 118 189 Vertical 50 Zoom 54 C Calibration 25 27 Calibration certificate 2 CAN 51 84 102 Channel button 50 Channel readout 64 Clearance DPO4000 6 Communications 35 40 CompactFlash x 2 5 50 58 174 244 Compensate probe 17 Compensate signal path 25 Confidential data 196 Connectivity 2 35 40 Connector side panel 67 Connectors front panel 66 rear panel 68 Controls 45 Coupling trigger 94 Cover front 2 Cross Hair graticule style 118 Cursor readout 62 149 Cursor measurements 144 Cursors 144 button 52 144 224 linking 145 Cursors menu 144 D Date and time changing 23 Default setup 187 Default Setup 73 button 50 58 73 menu 50 Undo 73 Delayed trigger 107 Depth DPO4000 6 Deskew 127 Display persistence 112 style 112 Displaying reference waveforms 182 Documentation xii DPO4AUTO 84 DPO4EMBD 84 Drivers 35 39 Dual waveform math 150 E e Scope 40 Edge trigger defined 99 Envelope acquisition mode 79 Erase setup and ref memory 196 Ethernet x 37 40 41 port 68 printing 192 Event Table 88 89 Excel 34 Expansion point icon 61 DPO4000 Series User Manual F Factory calibration 27 FFT Blackman Harris 157 controls 153 Hamming 156 Ha
40. 785 048 Two vertical waveform cursors appear They are attached to the selected waveform m Four screen cursors appear Two are vertical and two are horizontal They are no longer specifically attached to a waveform For example the first time you push Cursors the state might be off 144 DPO4000 Series User Manual 2 Push Cursors again In the example two vertical cursors appear on the selected screen waveform As you turn multipurpose knob a you move one cursor to the right or left As you turn knob b you move the other cursor If you change the selected waveform by pushing the front panel 1 2 3 4 M or R button both cursors jump to the new selected waveform 3 Push Select This turns the cursor linking on and off If linking is on turning multipurpose knob a moves the two cursors together Turning multipurpose knob b adjusts the time between the cursors DPO4000 Series User Manual Analyze Waveform Data 258us 3 48mv 3304s 1 42mV A588us A2 06mV 1785 049 1785 146 145 Analyze Waveform Data 4 Push Fine to toggle between a coarse or a fine adjustment for multipurpose knobs a a and b Pushing Fine also changes the sensitivity of other knobs as well 1785082 5 Push Cursors again Cursors This will put the cursors into screen mode a O Two horizontal bars and two vertical bars span the graticule 1785 048 6 Turn multi
41. Autoset 3 PROBE COMP Square wave signal source to compensate probes Output DI amp 0 0 voltage 0 2 5V amplitude 1 behind D 1k Q 2 Frequency 1 kHz 5 o o ED 4 Ground He w ie ka 5 Application Module Slots a i 4 a 4 T i 1785 026 66 DPO4000 Series User Manual Get Acquainted with the Instrument Side Panel Connector 1 Ground strap connector This is a receptacle for a grounding strap a 1785 158 DPO4000 Series User Manual 67 Get Acquainted with the Instrument Rear Panel Connectors 68 1 Trigger Out Use the trigger signal output to synchronize other test equipment with your oscilloscope A LOW to HIGH transition indicates the trigger occurred The logic level for Vout HI is 2 5V open circuit 21 0 V into a 500 load to ground The logic level for Vout LO is 0 7 V into a load of lt 4 mA 0 25 V into a 50Q load to ground XGA Out Use the XGA Video port DB 15 female connector to show the oscilloscope display on an external monitor or projector LAN Use the LAN Ethernet port RJ 45 connector to connect the oscilloscope to a 10 100 Base T local area network Device Use the USB 2 0 High speed device port to control the oscilloscope through USBTMC or GPIB with a TEK USB 488 Adapter The USBTMC protocol allows USB devices to communicate using IEEE488 style messages This lets you run your GPIB software applications on USB hardware
42. DPO4000 Series Digital Phosphor Oscilloscopes User Manual www tektronix com 071 1785 00 Tektronix 7 Copyright Tektronix All rights reserved Licensed software products are owned by Tektronix or its subsidiaries or suppliers and are protected by national copyright laws and international treaty provisions Tektronix products are covered by U S and foreign patents issued and pending Information in this publication supersedes that in all previously published material Specifications and price change privileges reserved TEKTRONIX and TEK are registered trademarks of Tektronix Inc e Scope iView OpenChoice TekSecure and TekVPI are registered trademarks of Tektronix Inc Wave Inspector is a trademark of Tektronix Inc Contacting Tektronix Tektronix Inc 14200 SW Karl Braun Drive P O Box 500 Beaverton OR 97077 USA For product information sales service and technical support n North America call 1 800 833 9200 Worldwide visit www tektronix com to find contacts in your area Warranty 4 Tektronix warrants that this product will be free from defects in materials and workmanship for a period of three 3 years from the date of shipment If any such product proves defective during this warranty period Tektronix at its option either will repair the defective product without charge for parts and labor or will provide a replacement in exchange for the defective product Parts modules and replacement products
43. DPO4000 Series Application Module Installation Instructions that came with your application module for instructions on installing and testing an application module NOTE If you remove an application module the features provided by the application module become unavailable To restore the features turn off the oscilloscope power reinstall the module and turn on the oscilloscope power Changing the User Interface Language To change the language of the oscilloscope user interface and the front panel button labels 1 Push Utility 1785 011 2 Push System repeatedly until you select Config Config from the pop up menu 20 DPO4000 Series User Manual 3 Push Language from the resulting lower bezel menu 4 Push the side bezel button corresponding to the desired language Choose among English French Italian German Spanish Japanese Brazilian Portuguese Simplified Chinese Traditional Chinese Korean and Russian DPO4000 Series User Manual Installation gt System Config Language English Set Date amp Time TekSecure Erase Memory Version v1 00 Language English Francais Deutsch Italiano more 1 of 3 21 Installation 22 5 If you choose to use English be sure that the plastic front panel overlay is removed If you choose a language other than English place the plastic overlay for the langu
44. Edge 1785 092 DPO4000 Series User Manual Trigger Setup and Run fam Type Source Coupling Slope Level 100 mV Mode amp Holdoff Configure B Trigger 0G OOOO Trigger Conditions Trigger on a rising or falling edge as defined by the slope control Coupling choices are DC LF Reject HF Reject and Noise Reject Edge triggers are the simplest and most commonly used trigger type with both analog and digital signals An edge trigger event occurs when the trigger source passes through a specified voltage level in the specified direction 99 Trigger Setup and Run Trigger Type Pulse Width i 1785 093 Runt Logic H 1785 097 100 Trigger Conditions Trigger on pulses that are less than greater than equal to or not equal to a specified time You can trigger on positive or negative pulses Pulse width triggers are primarily used on digital signals Trigger on a pulse amplitude that crosses one threshold but fails to cross a second threshold before recrossing the first You can detect positive or negative or either runts or only those wider than less than greater than equal to or not equal to a specified width Runt triggers are primarily used on digital signals Logic triggers are primarily used with digital signals You can set each input to high low or don t care In addition you can use one channel as a clock source set to either the ris
45. FT display Math Definition FFT Source Vertical Scale Linear RMS Window Hanning Horizontal 0 00 Hz 40 0 DPO4000 Series User Manual Analyze Waveform Data TNL 7 The FFT will appear on the display Tes Tele a ea Quick Tips Use short record lengths for faster instrument response m Use long record lengths to lower the noise relative to the signal and increase the frequency resolution DPO4000 Series User Manual 155 Analyze Waveform Data 156 m If desired use the zoom feature along with the horizontal Position and Scale controls to magnify and position the FFT waveform Use the default dBV RMS scale to see a detailed view of multiple frequencies even if they have very different amplitudes Use the linear RMS scale to see an overall view of how all frequencies compare to each other The FFT feature provides four windows Each is a trade off between frequency resolution and magnitude accuracy What you want to measure and your source signal characteristics help determine which window to use Use the following guidelines to select the best window Description Window Rectangular This is the best type of window for resolving frequencies that are very close to the same value but worst for accurately measuring the amplitude of those frequencies It is the best type for measuring the frequency spectrum of nonrepetitive signals and measuring frequency
46. Manual TEK USB 488 Adapter 36 38 68 TEK USB 488 Adapter 4 TekSecure 196 TekVPI 10 Temperature DPO4000 6 P6139A 8 Termination 123 Test button 49 TPA BNC Adapter 4 10 Transit case 4 Transition trigger defined 101 Trigger concepts 91 coupling 94 delayed 107 event defined 91 forcing 92 holdoff 93 level 96 modes 92 98 posttrigger 91 96 pretrigger 91 96 readout 107 sequential 107 Serial 84 102 238 slope 96 DPO4000 Series User Manual Trigger level button 56 Icon 63 knob 97 Trigger menu 49 98 108 226 Trigger menu button 226 Trigger Menu button 98 Trigger modes Auto 92 Normal 92 Trigger position icon 61 Trigger readout 63 Trigger status readout 62 Trigger types defined 99 U Undo Autoset 74 Default Setup 73 Upgrading firmware 28 USB x 5 36 39 50 58 69 174 189 port 68 USBTMC 68 User marks 169 Index Utility button 20 23 26 50 117 118 189 Utility menu 20 23 50 57 117 V Variable persistence 115 Versatile Probe Interface 10 Vertical button 50 menu 50 122 Position 121 position and autoset 75 position and offset 128 Position knob 57 72 Scale 121 230 Scale knob 57 72 Vibration DPO4000 7 Video lines 228 port 68 Video trigger defined 101 View waveform record 61 Voltage Input DPO4000 6 P6139A 8 249 Index Voltage Output P6139A 8 W Waveform record 77 Waveform Waveform
47. active channel to set the horizontal and trigger controls Selecting Automatic Measurements The oscilloscope can take automatic measurements of most displayed signals To measure signal frequency and peak to peak amplitude 1 Push Measure Measure 1785 047 2 Push Select Measurement Select Measure ment a1 Remove Measure ment Gating off Statistics off Reference Levels Indicators Configure Cursors DPO4000 Series User Manual 203 Application Examples 3 Turn multipurpose knob a to select the channel from which you want to measure For example select channel 1 This step is only needed F if you are acquiring data on more than one Muiose channel a 1785 039 4 Select the Frequency measurement from the Fu side bezel menu Frequency 5 Push more until you can select the Pk Pk mole measurement 6 Push Menu Off 1785 057 204 DPO4000 Series User Manual Application Examples 7 Observe that the measurements appear on the screen and update as the signal changes Period 995 us CD Freq 1 004 kHz 1785 153 DPO4000 Series User Manual 205 Application Examples Measuring Two Signals In this example you are testing a piece of equipment and need to measure the gain of its audio amplifier You have an audio generator that can inject a test signal at the amplifier input Connect two os
48. age that you desire over the front panel to display labels in that language 1785 156 DPO4000 Series User Manual Changing the Date and Time To set the internal clock with the current date and time Installation 1 Push Utility 1785 011 2 Push System repeatedly until you select Config from the pop up menu 3 Push Set Date amp Time Language SEEE TekSecure Version Syste English Time Erase Memory DPO4000 Series User Manual OJ e Ks 23 Installation 4 Push the side panel buttons and rotate both multipurpose knobs a and b to set the time and date values 5 Push OK Enter Date amp Time 24 Date Time Set Display Date Time ON OFF Hour 4 Min 1 Month July Day 19 Year 2005 OK Enter Date amp Time OK Enter Date amp Time DPO4000 Series User Manual Installation Signal Path Compensation Signal Path Compensation SPC corrects for DC inaccuracies caused by temperature variations and or long term drift Run the compensation whenever the ambient temperature has changed by more than 10 C or once a week if you use vertical settings of 5 mV division or less Failure to do so may result in the instrument not meeting warranted performance levels at those volts div settings To compensate the signal path 1 Warm up the oscilloscope for at least
49. al The time between Sample interval recorded sample points Adjust this by First sampled and digitized i turning the Horizontal Scale knob point in record Ld Record length The number of samples i required to fill a waveform record Set this Trigger by pushing the Acquire button and using point Expansion point Trigger point The zero time reference in a waveform record It is shown on the screen bey 4 by an orange T Horizontal Horizontal acquisition position window 1785 109 DPO4000 Series User Manual 77 Acquire the Signal Horizontal position The time from the trigger point to the expansion point Adjust this by turning the Horizontal Position knob Use a positive time to acquire the record after the trigger point Use a negative time to acquire it before the trigger point m Expansion point The point that the horizontal scale expands and contracts around It is shown by an orange triangle How the Acquisition Modes Work Sample mode retains the first sampled point from each acquisition interval Sample is the 7 default mode m 1785 128 78 DPO4000 Series User Manual Acquire the Signal Peak Detect mode uses the highest and lowest of all the samples contained in two consecutive acquisition intervals This mode only works with real time noninterpolated sampling and is useful for catching high frequency glitches 1785129 Hi Res mode
50. alone or the A and B triggers together you can also use horizontal position to delay the acquisition by an additional amount When using the B trigger the A and B trigger types can only be Edge 110 DPO4000 Series User Manual Trigger Setup and Run Starting and Stopping an Acquisition After you have defined the acquisition and trigger parameters start the acquisition with Run Stop or Single Push Run Stop to start the acquisition Push it again to stop the acquisition Push Single to take a single acquisition Run Stop gt 1 2 Single sets the trigger mode to Normal for the single acquisition Single Autoset 1785 044 DPO4000 Series User Manual 111 Display Waveform Data Display Waveform Data This section contains concepts and procedures for displaying the acquired waveform Adding and Removing a Waveform 1 To add or remove an active waveform from Sy ey es ey the display push the relevant front panel channel button CD 2 G C4 You can use the channel as a trigger source whether or not it is displayed At wer wer wer 1785 067 Setting the Display Style and Persistence 1 To set the display style push Acquire 1785 046 112 DPO4000 Series User Manual 2 Push Waveform Display DPO4000 Series User Manual Display Waveform Data Mode Record Length 10k Reset Horizontal Position aveform DAJEM 113 Display Wa
51. calculates the average of all the samples for each acquisition interval This mode also only works with real time 7 r T noninterpolated sampling Hi Res provides a ely higher resolution lower bandwidth waveform ieee Envelope mode finds the highest and lowest record points over all acquisitions halen al vA dew at lea Ue m AU Um Envelope uses Peak Detect for each individual ee acquisition Average mode calculates the average value for each record point over a user specified number ar el I riaeae Pigtails D gt of acquisitions Average uses Sample mode for each individual acquisition Use average mode to reduce random noise 1785 132 DPO4000 Series User Manual 79 Acquire the Signal Changing the Acquisition Mode and Record Length Use this procedure to change the acquisition mode 1 Push Acquire 1785 046 2 Push Mode Mode Record Reset Waveform A Length Horizontal Display 10k Position 80 DPO4000 Series User Manual Acquire the Signal 3 Then choose the acquisition mode from Acquisition the side bezel menu You can chose from Mode Sample Peak Detect Hi Res Envelope or PS y Average Sample NOTE Peak Detect and High Res require more ML than one sample point per sample interval If there Peak is only one sample point these two modes will Detect appear the same as sample mode Envelope
52. ce personnel CAUTION Do not power off the oscilloscope or remove the USB storage device until the oscilloscope finishes installing the firmware DPO4000 Series User Manual TT aK E ie ico p e5 D amp D amp E3 Pl N Cs 1785 012 Installation 31 Installation 5 Power off the DPO4000 and remove the USB Ko storage device 4 N m L _ OL oO sao Dee e e oje D po o o olee e0 000o j 5s Te Es 6 AAAA a 1785 114 32 DPO4000 Series User Manual Installation 6 Power on the DPO4000 pp ie To UUUUU O e5 00000000 1785 012 7 Push Utility 1785011 DPO4000 Series User Manual 33 Installation 8 Push Version The oscilloscope displays the Mi Language a Date amp TekSecure firmware version number System English me me Config 9 Confirm that the version number matches that of the new firmware Connecting Your Oscilloscope to a Computer 34 You may want to document your work for future reference Instead of saving screen
53. channel waveforms Math waveforms derive their horizontal scale and position from the sources in their math expressions Adjusting these controls for the source waveforms also adjusts the math waveform You can zoom in on math waveforms using the inner knob of the Pan Zoom control Use the outer knob for positioning the zoomed area See page 163 Managing Long Record Length Waveforms DPO4000 Series User Manual Analyze Waveform Data Using FFT An FFT breaks down signals into component frequencies which the oscilloscope uses to display a graph of the frequency domain of a signal as opposed to the oscilloscope s standard time domain graph You can match these frequencies with known system frequencies such as system clocks oscillators or power supplies 1 Push Math On 1785 050 a Advanced 2 Push FFT Dual Wim Math Math DPO4000 Series User Manual 153 Analyze Waveform Data 154 Push the side bezel menu FFT Source button repeatedly to select the source to use Choices are channels 1 2 3 4 reference waveforms 1 2 3 and 4 Push the side bezel Vertical Scale button repeatedly to select either Linear RMS or dBV RMS Push the side bezel Window button repeatedly to select the desired window Window choices are Rectangular Hamming Hanning and Blackman Harris Push the side bezel Horizontal button to activate multipurpose knobs a and b to pan and zoom the F
54. cilloscope channels to the amplifier input and output as shown Measure both signal levels and use these measurements to calculate the gain 1785 077 206 DPO4000 Series User Manual To display the signals connected to channels 1 and 2 Application Examples 1 Push channel 1 and channel 2 to activate both channels C O 1785 060 2 Push Autoset To select measurements for the two channels 1 Push Measure to see the measurement menu 1785 010 T Measure 1785 047 DPO4000 Series User Manual 207 Application Examples 2 Push Select Measurement Select Remove Gating Statistics Reference Indicators Configure MEETS Measure Levels Cursors Off Off ment ment 3 Turn multipurpose knob a to select channel 1 Ly Multipurpose 1785 039 4 Page through the measurement menus until Amplitude you find Amplitude Select Amplitude 208 DPO4000 Series User Manual Application Examples 5 Turn multipurpose knob a to select channel 2 Multipurpose 1785 039 6 Select Amplitude Amplitude FO 7 Calculate the amplifier gain using the following equations Gain output amplitude input amplitude 3 155 V 130 0 mV 24 27 Gain dB 20 x log 24 27 27 7 dB 1785 170 DPO4000 Series User Manual 209 Application Examples Customizing Your Measurements In this examp
55. d in the saved setup With the optional DPO4EMBD and DPO4AUTO application modules installed you can use the front panel B1 and B2 buttons to define a combination of inputs to be either 12C SPI or CAN serial bus Once set up you can trigger on user specified packet level content and have the DPO4000 automatically decode every packet in the acquisition into either binary or hex The Wave Inspector includes the following search capabilities Search Description Edge Searches for edges rising or falling with a user specified threshold level Pulse Width Searches for positive or negative pulse widths that are gt lt or a user specified pulse width DPO4000 Series User Manual Analyze Waveform Data Search Description Runt Searches for positive or negative pulses that cross one amplitude threshold but fail to cross a second threshold before crossing the first again Search for all runt pulses or only those with a duration gt lt or a user specified time Logic Search for a logic pattern AND OR NAND or NOR across multiple waveforms with each input set to either High Low or Don t Care Search for when the event goes true goes false or stays valid for gt lt or a user specified time Additionally you can define one of the inputs as a Clock for synchronous state searches Setup amp Hold Search for violations of user specified Setup and Hold times Rise Fall Time Search for risi
56. d to a voltage source Connect and Disconnect Properly De energize the circuit under test before connecting or disconnecting the current probe Ground the Product This product is grounded through the grounding conductor of the power cord To avoid electric shock the grounding conductor must be connected to earth ground Before making connections to the input or output terminals of the product ensure that the product is properly grounded Observe All Terminal Ratings To avoid fire or shock hazard observe all ratings and markings on the product Consult the product manual for further ratings information before making connections to the product The inputs are not rated for connection to mains or Category Il Ill or IV circuits Connect the probe reference lead to earth ground only Do not apply a potential to any terminal including the common terminal that exceeds the maximum rating of that terminal DPO4000 Series User Manual V General Safety Summary A A vi Power Disconnect The power switch disconnects the product from the power source See instructions for the location Do not block the power switch it must remain accessible to the user at all times Do Not Operate Without Covers Do not operate this product with covers or panels removed Do Not Operate With Suspected Failures If you suspect that there is damage to this product have it inspected by qualified service personnel Avoid Exposed Circuitry Do not touch ex
57. de 353 totic Seo ates he Mle lA a a a teh eo Lol Rad hh GMa hie Sek a a oc 83 Defining a Serial BUS ccc ec ec cece ee eee eee nen e nn EE DEEPER ADEE EEE EASE EEE E EEDA DERE EE DASE EGE SE EGE EE EGE D EE EPERE EEEE 84 Trigger Setup and RUN i Ae AA ed ee SA ed A 91 Triggering GONCep tsa 3442250 dear arhioet at a a a a a a aie yhddacdadestash ath a a a a a E ciate aed 91 Choosingia Tigercat a E E divs ait ui eae nel enlome eid Ate aaa ote ae 98 Selecting TOGEIS i casein Mies Sencha dian cibiienddswrssawaembbevdaitad dade wiadveneets senate depts sabvkntabacienetent ath uthad 99 Triggering ON BUSES siii need Heated AEAEE nuda det uate ai arian Fad at ee eg 102 Checking Trigger StatuSizc lt 222cicenctacht 26d since ths aoe nedeah E otya etd a a bd aaden a o oes 107 Using A Main and B Delayed Triggers ccccceceeeee nent e eee e teen ener e een e EE EEE EERE D EEE SG EE DE EE EE DEE EE EEE EEE 107 Starting and Stopping an ACQUISITION ccccec cece eee e cence nent nee EEDA EE EG EAD EG EEE E EG EG PEKEE E EAEEren eei 111 DPO4000 Series User Manual Table of Contents Display Waveform Data sinin Ga sivbiaacttesaace doa pect d vine a E biascnh told Aandi bee a NA 112 Adding and Removing a Waveform cccc cece ec ee eee e eens eee renee en ene EEE EEDA DEDEDE DEG EE EGE G EE EA EGE DERE EEE EE EE ES 112 Setting the Display Style and Persistence ccccccceeeceeee cnet rttr rrtt rrt rttr e rete
58. define the Save button behavior push Save Recall Menu 2 6 1785 056 DPO4000 Series User Manual 187 Save and Recall Information 2 Push Assign Save button Save Save Save Setup Recall Recall Assign File Utilities Screen Waveform Waveform Setup Save to Image Setup 3 Push the action to assign to the Save button Assign Save to Screen Image Waveform Setup 4 From now on when you push Save the button will perform the action that you just specified rather than having to navigate menus each time 1785 058 188 DPO4000 Series User Manual Save and Recall Information Printing a Hard Copy To print an image of what appears on the oscilloscope screen do the following procedure Connect a Printer to Your Oscilloscope Connect your printer to a USB port on the rear or front panel of the oscilloscope Alternatively you can print to networked printers through the Ethernet port Set Up Print Parameters To set up the oscilloscope to print hard copies 1 Push Utility 1785 011 2 Push System as many times as needed to select Print Setup from the resulting pop up menu DPO4000 Series User Manual 189 Save and Recall Information 190 fam System Print Setup Select Printer N A Orientation Ink Saver 3 Push Select Printer if you are changing the default printer Tu
59. e Preface This manual describes the installation and operation of the following DPO4000 Series Instruments DPO4104 DPO4054 DPO4034 DPO4032 Key Features DPO4000 Series instruments can help you verify debug and characterize electronic designs Key features include E 1 GHz 500 MHz and 350 MHz bandwidths 2 and 4 channel models Sample rates up to 5 GS s on all channels 10 Megapoint record length on all channels 12C SPI and CAN serial triggering and analysis Requires use of the DPO4EMBD for 12C and SPI or DPO4AUTO for CAN application modules Wave Inspector controls for managing long record lengths with zoom and pan play and pause search and mark 10 4 inch 264 mm XGA color display Small footprint and lightweight at 140 mm 5 5 inches deep and 5 kg 11 pounds USB and CompactFlash available for quick and easy storage Built in Ethernet port USB 2 0 device port for direct PC control of the oscilloscope using USBTMC protocol x DPO4000 Series User Manual Preface m OpenChoice documentation and analysis software Remote viewing with control e Scope and OpenChoice connectivity TekVPI Versatile Probe Interface supports active differential and current probes for automatic scaling and units DPO4000 Series User Manual xi Preface Where to Find More Information The following information is available for your oscilloscope To read about Use these documents Installation and Operation This DPO4000 User Man
60. e automatic panning of a waveform Control the speed and direction with the pan knob lt Prev Push to jump to the previous waveform mark 1785 021 DPO4000 Series User Manual Get Acquainted with the Instrument 12 Set Clear Mark Push to establish or delete a waveform mark 13 Next Push to jump to the next waveform mark 14 Horizontal Position Turn to adjust the trigger point location relative to the acquired waveforms Push Fine to make pn smaller adjustments 15 Horizontal Scale Turn to adjust the horizontal scale time division 1785 022 DPO4000 Series User Manual 55 Get Acquainted with the Instrument 16 17 18 1 wo 2 o 21 56 Run Stop Push to start or stop acquisitions Single Push to make a single acquisition Autoset Push to automatically set the vertical horizontal and trigger controls for a usable stable display Trigger Level Turn to adjust the trigger level Set to 50 Push to set the trigger level to the midpoint of the waveform Force Trig Push to force an immediate trigger event DPO4000 Series User Manual Get Acquainted with the Instrument 22 Vertical Position Turn to adjust the vertical position of the corresponding waveform Push Fine to make smaller adjustments 23 1 2 3 4 Push to display or remove the corresponding waveform from the display Oa and access the vertical menu
61. e Horizontal Position knob 2 Turn horizontal SCALE to acquire the am detail that you need around the position delay expansion point 1785 043 DPO4000 Series User Manual 95 Trigger Setup and Run 96 The part of the record that occurs before the trigger is the pretrigger portion The part that occurs after the trigger is the posttrigger portion Pretrigger data can help you troubleshoot For example to find the cause of an unwanted glitch in your test circuit you can trigger on the glitch and make the pretrigger period large enough to capture data before the glitch By analyzing what happens before the glitch you may uncover information that helps you find the source of the glitch Alternatively to see what is happening in your system as a result of the trigger event make the posttrigger period large enough to capture data after the trigger Slope and Level The slope control determines whether the Positive going edge Negative going edge instrument finds the trigger point on the rising or the falling edge of a signal The level control determines where on that Trigger level can j i be adjusted edge the trigger point occurs a i j vertically A Trigger slope can be positive or negative 1785083 The DPO4000 provides a long horizontal bar or bars across the graticule to temporarily show the trigger level 1785 152 DPO4000 Series User Manual 1 Turn the front panel Trigger Level knob to adjust
62. e across the screen DPO4000 Series User Manual Application Examples Type Standard Source Trigger On Mode ie ES amp Holdoff o 1785 108 229 Application Examples 6 Observe the results Capturing a Single Shot Signal 230 In this example the reliability of a reed relay in a piece of equipment has been poor and you need to investigate the problem You suspect that the relay contacts arc when the relay opens The fastest you can open and close the relay is about once per minute so you need to capture the voltage across the relay as a single shot acquisition To set up for a single shot acquisition 1 Adjust the Vertical Scale and Horizontal Scale to appropriate ranges for the signal you expect to see DPO4000 Series User Manual Application Examples 2 Push Acquire 3 Push Mode 4 Select Sample 5 Push Trigger Menu lt a nen 1785 042 6 Push Slope and _ 7 Turn the Trigger Level knob to adjust the trigger level to a voltage midway between the open and closed voltages of the replay DPO4000 Series User Manual 231 Application Examples 8 Push Single single sequence When the relay opens the oscilloscope triggers and captures the event The Single sequence button disables auto triggering so that only a valid triggered signal is acquired 232
63. e tip See page 17 Compensating the Probe DPO4000 Series User Manual 27 Installation Upgrading Firmware To upgrade the firmware of the oscilloscope 28 1 Open up a Web browser and go to www tektronix com Proceed to the software finder Download the latest firmware for your DP04000 series oscilloscope onto a USB storage device elt QUT T my Ee 1785 157 DPO4000 Series User Manual Installation 2 Power off your DPO4000 i i eS 0000900 C 20 oloo Cal A Alaeg 1 E08 ce log loam 000 Og 0000 Lo OOOO 8 DIR pii pE D Di D I D PE 1785 111 29 DPO4000 Series User Manual Installation 3 Insert the USB storage device into the n N front panel USB port on your DPO4000 4 D en 7103 ese Sf ac e olw cr D GJESH D G Dies 6 6 oje 5 00 ole ni H 20 o0 o os I CLIFT TI Nilo fe fe elo fi ci ne 1785 113 30 DPO4000 Series User Manual 4 Power on the DPO4000 The instrument automatically recognizes the replacement firmware and installs it If the instrument does not install the firmware rerun the procedure It the problem continues contact qualified servi
64. elds 1 Push Trigger Menu lt a en 1785 042 DPO4000 Series User Manual 2 Push Type repeatedly to select Video 3 Push Standard repeatedly to select 525 NTSC 4 Push Trigger On 5 Select Odd Fields If the signal had been noninterlaced you could choose to trigger on All Fields 6 Turn the Horizontal Scale knob to see a complete field across the screen DPO4000 Series User Manual Application Examples An Standard ANEA Source Trigger on Mode amp Holdoff Ez Odd Fields 1785 107 227 Application Examples 7 View results Triggering on Lines Triggering on Lines To look at the video lines in the field 1 Push Trigger Menu 1785 042 228 DPO4000 Series User Manual 2 Push Type repeatedly to select Video 3 Push Trigger On 4 Select All Lines 5 Adjust Horizontal Scale to see a complete video lin
65. en the cursor positions 16 0us 22 4mV a Readout Indicates the value is controlled by multipurpose we knob a b Readout Indicates the value is controlled by multipurpose knob b The horizontal cursor lines on the display measure the vertical parameters typically R voltage DPO4000 Series User Manual 149 Analyze Waveform Data The vertical cursor lines on the display measure horizontal parameters typically time Using Math Waveforms Create math waveforms to support the analysis of your channel and reference waveforms By combining and transforming source waveforms and other data into math waveforms you can derive the data view that your application requires Use the following procedure for executing simple math operations on two waveforms 1 Push Math o 1785 050 150 DPO4000 Series User Manual Analyze Waveform Data FFT Advanced Math 2 Push Dual Wfm Math 3 On the side bezel menu set the sources to either channel 1 2 3 4 or reference waveforms R1 2 3 or 4 Choose the x Or operators 4 For example you might calculate power by multiplying a voltage waveform and a current waveform DPO4000 Series User Manual 151 Analyze Waveform Data 152 Quick Tips Math waveforms can be created from channel or reference waveforms or a combination of them Measurements can be taken on math waveforms in the same way as on
66. ent Equipment Recycling Production of this equipment required the extraction and use of natural resources The equipment may contain substances that could be harmful to the environment or human health if improperly handled at the product s end of life In order to avoid release of such substances into the environment and to reduce the use of natural resources we encourage you to recycle this product in an appropriate system that will ensure that most of the materials are reused or recycled appropriately The symbol shown below indicates that this product complies with the European Union s requirements according to Directive 2002 96 EC on waste electrical and electronic equipment WEEE For information about recycling options check the Support Service section of the Tektronix Web site www tektronix com Mercury Notification This product uses an LCD backlight lamp that contains mercury Disposal may be regulated due to environmental considerations Please contact your local authorities or within the United States the Electronics Industries Alliance www eiae org for disposal or recycling information DPO4000 Series User Manual Environmental Considerations Restriction of Hazardous Substances This product has been classified as Monitoring and Control equipment and is outside the scope of the 2002 95 EC RoHS Directive This product is known to contain lead cadmium mercury and hexavalent chromium DPO4000 Series User Manual ix Prefac
67. epeatedly to select I O 4 Push Ethernet Network Settings DPO4000 Series User Manual Installation V0 O An USB Ethernet GPIB Network System Settings KO 41 Installation 42 5 Push Change Instrument Settings to determine the Ethernet address and instrument name On the side bezel menu if you are on a DHCP Ethernet network and using dynamic addressing set DHCP to On If you are using static addressing set it to Off Start your browser on your remote computer In the browser address line enter the IP address or if DHCP is set to On in the oscilloscope simply enter the instrument name Network Configura tion Change Instrument Settings DHCP BOOTP On Off Test Connection DPO4000 Series User Manual Installation 7 You should now see the e Scope screen with a copy of the oscilloscope display on your Web browser If e Scope does not work rerun the procedure If it still does not work contact qualified service personnel DPO4000 Series User Manual 43 Installation 44 DPO4000 Series User Manual Get Acquainted with the Instrument Get Acquainted with the Instrument Front Panel Menus and Controls The front panel has buttons and controls for the functions that you use most often Use the menu buttons to access more specialized functions DPO4000 Series User Manual 45 Get Acquainted with the Instr
68. ertically Positioned vertically Quick Tips Preview If you change the Position or Scale controls when the acquisition is stopped or when it is waiting for the next trigger the oscilloscope rescales and repositions the relevant waveforms in response to the new control settings It simulates what you will see when you next push the RUN button The oscilloscope uses the new settings for the next acquisition You may see a clipped waveform if the original acquisition went off the screen The math waveform cursors and automatic measurements remain active and valid when using preview DPO4000 Series User Manual 121 Display Waveform Data Setting Input Parameters Use the vertical controls to select waveforms adjust the waveform vertical position and scale and set input parameters 1 Push channel button 1 2 3 or 4 to bring up ev ey ey ey the vertical menu for the designated waveform The vertical menu only affects the selected a 2 G C4 waveform at Ka a Se 1785 067 Pushing a channel button will also select or cancel that waveform selection 2 Push Coupling Coupling Invert Bandwidth Fine Scale Offset Position Probe Full nn wo 0 00 div Setup 122 DPO4000 Series User Manual Display Waveform Data 3 Push DC AC or GND ground Use DC coupling to pass both AC and DC components Use AC coupling to block the DC component and show only the AC signal Use Ground GND to d
69. ezel menu select the location to save the waveform data to or to recall it from Save the information externally to a file on a CompactFlash card or USB memory stick Alternatively save the information internally to one of the four reference memories in the oscilloscope 4 Push To File to save to a CompactFlash card To File or USB memory stick This brings up the file manager screen Use it to define a custom file name Skip this step to use the default name and location Editing File Directory Reference Waveform or Instrument Setup Names Give files descriptive names that you can recognize at a later date To edit file names directory names reference waveform and instrument setup labels 1 Push Save Recall Menu 1785 056 DPO4000 Series User Manual 177 Save and Recall Information 2 Push Save Screen Image Save Waveform Save Save Save Setup Recall Recall Assign File Utilities S Set Screen Waveform Waveform Setup Save to or Save setup Image Setup 3 Enter the file manager by pushing the To File side bezel menu To File item 4 Turn multipurpose knob a to scroll through the file structure D is the CompactFlash drive Multipurpose E is the USB drive plugged into the USB port on the front of the oscilloscope F and G are the USB drives plugged into the USB host ports on the rear of the oscilloscope 1785 039 178 DPO4000 Series User Manual 5 Push Select to
70. f a signal These are the default reference levels that the oscilloscope uses for rise time measurements However in this example you need to measure the time that the signal takes to pass between the 0 8 V and 2 0 V levels You can customize the rise time measurement to measure the signal transition time between any two reference levels You can set each of these reference levels to a specific percent of the signal amplitude or to a specific level in vertical units such as volts or amperes Measuring Specific Events Next you want to see the pulses in the incoming digital signal but the pulse widths vary so it is hard to establish a stable trigger To look at a snapshot of the digital signal do this step 1 Push Single to capture a single acquisition 1785 061 Now you want to measure the width of each displayed pulse You can use measurement gating to select a specific pulse to measure To measure the second pulse 1 Push Measure 1785 047 DPO4000 Series User Manual 213 Application Examples 2 Push Select Measurement Select Remove Gating Statistics Reference Indicators Configure measure Measure Levels Cursors ment ment 3 Turn multipurpose knob a to select channel 1 Ly Multipurpose 1785 039 4 Select Positive Pulse Width measurement FL Positive Pulse Width 214 DPO4000 Series User Manual 5 Push Gating 6 Select Between Cursors from
71. ger time Use this to compensate for differences in cable lengths or probe types Select Attenuation to choose the probe attenuation DPO4000 Series User Manual 127 Display Waveform Data Quick Tips Using Probes with the TekProbe II and TekVPI Interfaces When you attach a probe with the TekProbe II or the TekVPI interface the oscilloscope sets the channel sensitivity coupling and termination resistance automatically to match the probe requirements Tek Probe II probes require use of the TPA BNC Adapter The Difference Between Vertical Position and Offset Vertical position is a display function Adjust the vertical position to place the waveforms where you want to see them The waveform baseline locations track adjustments made to their positions When you adjust vertical offset you see a similar effect but it is actually quite different Vertical offset is applied before the oscilloscope preamplifier and can be used to increase the effective dynamic range of the inputs For example you can use vertical offset to look at small variations in a large DC voltage Set the vertical offset to match the nominal DC voltage and the signal appears in the center of the screen m 50 Protection If you select 50 termination the maximum vertical scale factor is limited to 1 V div If you apply excessive input voltage the oscilloscope automatically switches to 1 M termination to protect the internal 50 Q termination For more details
72. ies User Manual Application Examples The ragged waveform and the inductive load in the circuit suggest that the relay contact may a be arcing as it opens ee 1785 173 The zoom function works equally well when the acquisition is running or is stopped Horizontal position and scale changes affect only the display not the next acquisition Correlating Data With a TLA5000 Logic Analyzer To troubleshoot designs with fast clock edges and data rates it helps to view analog characteristics of digital signals in relation to complex digital events in the circuit You can do that with iView which lets you transfer analog waveforms from the oscilloscope to the logic analyzer display You can then view time correlated analog and digital signals side by side and use this to pinpoint sources of glitches and other problems DPO4000 Series User Manual 235 Application Examples The iView External Oscilloscope Cable allows you to connect your logic analyzer to a Tektronix oscilloscope This enables communication between the two instruments The Add External Oscilloscope wizard which is available from the TLA application System menu guides you through the process of connecting the iView cable between your logic analyzer and oscilloscope The TLA also provides a setup window to assist you in verifying changing and testing the oscilloscope settings Before acquiring and displaying a waveform you must establish a connection
73. illoscope and probes with a lint free cloth Use care to avoid scratching the clear glass display filter 2 Use a soft cloth dampened with water to clean the oscilloscope Use an aqueous solution of 75 isopropyl alcohol for more efficient cleaning N CAUTION To avoid damage to the surface of the oscilloscope or probes do not use any abrasive or chemical cleaning agents DPO4000 Series User Manual 9 Installation Connecting Probes The DPO4000 oscilloscope supports probes with the following 1 Tektronix Versatile Probe Interface TekVPI These probes support two way communication with the oscilloscope through on screen menus and remotely through programmable support The remote control is useful in applications like ATE where you want the system to preset probe parameters TPA BNC Adapter The TPA BNC Adapter allows you to use TekProbe Level II probe capabilities such as providing probe power and passing information to the oscilloscope on scaling and whether the units are volts or amperes Plain BNC interfaces These probes only pass the waveform signal to the oscilloscope There is no other communication 1785 090 DPO4000 Series User Manual Installation For more information on the many probes available for use with DPO4000 oscilloscopes refer to www tektronix com Powering On the Oscilloscope Ground the Oscilloscope and Yourself Before pushing the power switch connect the oscilloscope to
74. images and waveform data to a CompactFlash or USB storage device and then generating a report later you may want to send it directly to a remote PC for analysis You may also want to control an oscilloscope at a remote location from your computer Two ways to connect your oscilloscope to a computer are the TekVISA based OpenChoice and the e Scope Web enabled tool Use OpenChoice to communicate with your oscilloscope from your computer through a software application Use e Scope to communicate with your oscilloscope through a Web browser Using OpenChoice OpenChoice lets you use your MS Windows computer to acquire data from your oscilloscope for use in an analysis package that runs on your PC such as Microsoft Excel National Instruments LabVIEW or a program of your own creation You can use a common communications protocol such as USB Ethernet or GPIB to connect the computer to the oscilloscope DPO4000 Series User Manual To set up OpenChoice communications between your oscilloscope and a computer 1 Load the TekVISA drivers on your computer Find these on the OpenChoice Desktop CD or at the Tektronix software finder Web 10 38 AM page www tektronix com When done the TekVISA icon appears in the Windows System Tray Typically this is the bottom right of the Windows desktop on your MS Windows computer DPO4000 Series User Manual Installation 35 Installation 36 2 Connect the DPO4000 to your computer with
75. include digital views of the signal bus views packet decoding search tools and event tables with timestamp information The DPO4AUTO Serial Triggering and Analysis Module adds triggering on packet level information in serial buses used in automotive designs CAN as well as analytical tools to help you efficiently analyze your serial bus These include digital views of the signal bus views packet decoding search tools and event tables with timestamp information 200 DPO4000 Series User Manual Application Examples Application Examples This section contains ways to use your instrument in both common and advanced troubleshooting tasks Taking Simple Measurements If you need to see a signal in a circuit but you do not know the signal amplitude or frequency connect the probe from channel 1 of the oscilloscope to the signal Then display the signal and measure its frequency and peak to peak amplitude 1785 076 DPO4000 Series User Manual 201 Application Examples Using Autoset To quickly display a signal 1 Push Autoset 1785 010 202 DPO4000 Series User Manual Application Examples The oscilloscope sets vertical horizontal and trigger controls automatically You can manually adjust any of these controls if you need to optimize the display of the waveform When you are using more than one channel the autoset function sets the vertical controls for each channel and uses the lowest numbered
76. increases the time or difficulty of servicing the product THIS WARRANTY IS GIVEN BY TEKTRONIX WITH RESPECT TO THE PRODUCT IN LIEU OF ANY OTHER WARRANTIES EXPRESS OR IMPLIED TEKTRONIX AND ITS VENDORS DISCLAIM ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE TEKTRONIX RESPONSIBILITY TO REPAIR OR REPLACE DEFECTIVE PRODUCTS IS THE SOLE AND EXCLUSIVE REMEDY PROVIDED TO THE CUSTOMER FOR BREACH OF THIS WARRANTY TEKTRONIX AND ITS VENDORS WILL NOT BE LIABLE FOR ANY INDIRECT SPECIAL INCIDENTAL OR CONSEQUENTIAL DAMAGES IRRESPECTIVE OF WHETHER TEKTRONIX OR THE VENDOR HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES Table of Contents Table of Contents General Safety Summary 0 cece cece cece eee ener e rttr EERE EEE EE EE EE EE EE EEE EE EEE DERE E DADE EEDA EEE EEE E EG EEE EGE E EE EEEE EEE V Environmental Considerations 00 0 0 ccececcecee eee e eee cent cece teen tee tenet eect eee ee eee ee eee EEEE EEEEEEEEEEEEEEEEEEEE EEEE viii PU CTACG E E nesses tac tare seas Ane Gp E E E O cnet samsonite hati aen E Peet X Key Features iiron drei E R O EE E E EEA a ae Dae es X Where to Find More Informations ic ac cities iva pare ted vide eenta adareieteee ental ten ete et xii Conventions Used in This Manual 0 0ccececeeeeeeceeeee ec eee eee ee eee ee ee eeeee tees eeeeeeeeneneeeeeeeeeteeeeeeeennees xiii IS TANAUIOMN esaea E ae acedertaetiae E E E cum cecuteh meaner aan 1 Before Installation
77. ing or falling edge Trigger when logic inputs cause the selected function to become True or False You can also specify that the logic conditions be satisfied for a specific amount of time before triggering DPO4000 Series User Manual Trigger Setup and Run Trigger Type Trigger Conditions Setup Trigger when a logic data input changes state inside of the setup and Hold or hold time relative to a clock edge Violation Setup is the amount of time that data should be stable and not change before a clock edge occurs Hold is the time that data should be stable and not change after a clock edge occurs Rise Fall Trigger on rise and fall times Trigger on pulse edges that traverse Time between two thresholds at faster or slower rates than the specified time Specify pulse edges as positive or negative or either Video Trigger on specified fields or lines of a composite video signal Only composite signal formats are supported Trigger on NTSC PAL or SECAM Works with Macrovision signals DPO4000 Series User Manual 101 Trigger Setup and Run Trigger Type Trigger Conditions Bus lt r X K_ gt Optional Trigger on common serial bus packet level information FLL with the following application modules TTA nn DPO4EMBD I2C and SPI DPO4AUTO CAN 1785 098 Triggering on Buses You can use your DPO4000 oscilloscope to trigger on CAN 12C and SPI buses if you have the DPO4AUTO or the DPO4EMBD application module insta
78. ion A2 161 0104 07 Australia Option A3 161 0104 05 Switzerland Option A5 161 0167 00 Japan Option A6 161 A005 00 China Option A10 161 0306 00 India Option A11 161 0400 00 No power cord or AC adapter Option A99 DPO4000 Series User Manual Installation Optional Accessories Accessory Tektronix Part Number DPO4EMBD The embedded serial triggering and analysis DPO4EMBD module enables triggering on packet level information on 12C and SPI serial buses as well as digital views of the signal bus views bus decoding search tools and packet decode tables with timestamp information DPO4AUTO The embedding automotive serial triggering and DPO4AUTO analysis module enables triggering on packet level information on CAN serial buses as well as digital views of the signal bus views bus decoding search tools and packet decode tables with timestamp information TPA BNC TekVPI to TekProbe 2 BNC Adapter TPA BNC TEK USB 488 Adapter GPIB to USB Adapter TEK USB 488 Getting Started with OpenChoice Solutions Describes ways to develop host computer 020 2513 XX Manual with CD software applications that work with your oscilloscope Rackmount kit Adds rackmount brackets RM4000 Soft transit case Case for carrying instrument AC4000 Hard transit case Traveling case which requires use of the soft HCTEK4321 transit case AC4000 DPO4000 Series User Manual Optional Accessories cont
79. iption Negative Duty RF The ratio of the negative pulse width to the signal period expressed as a percentage The Cycle duty cycle is measured on the first cycle in the waveform or gated region Positive Pulse Width The distance time between the mid reference default 50 amplitude points of a positive pulse The measurement is made on the first pulse in the waveform or gated region The distance time between the mid reference default 50 amplitude points of a negative pulse The measurement is made on the first pulse in the waveform or gated region f L Negative Pulse ko Width Phase OT The amount of time that one waveform leads or lags another waveform expressed in degrees Burst Width m The duration of a burst a series of transient events and is measured over the entire all ija waveform or gated region where 360 comprises one waveform cycle See also Delay 132 DPO4000 Series User Manual Analyze Waveform Data Rise time Fall time 100 i 90 Voltage 50 Pulse width 10 0 1785 084 Amplitude Measurements Measurement Description Positive somou This is measured over the entire waveform or gated region and is expressed as Overshoot n Positive Overshoot Maximum High Amplitude x 100 Negative This is measured over the entire waveform or gated region and is expressed as Overshoot Negative Overshoot Low Minimum Amplitude x 1
80. isplay Waveform Data Coupling Invert Bandwidth Fine Scale Offset Position Probe Full 100mV div 0 00V 0 00 div Setup Coupling Invert Bandwidth Fine Scale Offset Position Probe Full 100mV div 0 00V 0 00 div Setup 125 Display Waveform Data 9 Push Position to enable multipurpose knob a to make vertical position adjustments NOTE You can also use the position knob on the front panel to do this On the side bezel menu choose Set to 0 divs to set the vertical position to the center of the screen For more information on vertical position see the Quick Tips below 126 Coupling Invert Bandwidth Full Fine Scale 100mV div Offset Position Probe 0 00V 0 00 div Setup DPO4000 Series User Manual Display Waveform Data 10 Push Probe Setup to define probe parameters Coupling Invert Bandwidth Fine Scale Offset Position Probe Full ow o 0 00 div Setup On the resulting side bezel menu Select Voltage Probe or Current Probe to set the probe gain or attenuation for probes that do not have the TekProbe II or TekVPI interface Push Deskew to set the time skew correction to zero Turn multipurpose knob a to adjust the time skew deskew correction for the probe attached to the selected channel This shifts acquisition and display of the waveform left or right relative to the trig
81. isplay the reference GND potential 4 Push Q Q 1M 50 eee Set the input impedance termination to 50 Q or 1 MOQ if using DC or Gnd coupling Input impedance is automatically set to 1 MO when using AC coupling For more information on input impedance see Quick Tips below DPO4000 Series User Manual 123 Display Waveform Data 5 Push Invert to invert the signal Coupling Invert Bandwidth Fine Scale Offset Position Probe DC Full 0 00V Setup Select Invert Off for normal operation and Invert On to invert the polarity of the signal in the preamplifier 6 Push Bandwidth and select the desired Coupling Invert EMN Fine Scale Offset Position Probe bandwidth from the resulting side bezel menu Full 0 00V a The set choices are Full 250 MHz and 20 MHz Additional choices may appear depending on the probe that you use Select Full to set the bandwidth to the full oscilloscope bandwidth Select 250 MHz to set the bandwidth to 250 MHz Select 20 MHz to set the bandwidth to 20 MHz 124 DPO4000 Series User Manual 7 Push Fine Scale to enable multipurpose knob a to make fine vertical scale adjustments 8 Push Offset to enable multipurpose knob a to make vertical offset adjustments On the side bezel menu choose Set to 0 V to set the vertical offset to 0 V For more information on offset see the Quick Tips below DPO4000 Series User Manual D
82. knob of the pan zoom controls to pan the waveform Turn the knob clockwise to pan forward Turn it counterclockwise to pan backwards The further you turn the knob the faster the zoom window pans a 1785 073 166 DPO4000 Series User Manual Playing and Pausing a Waveform Use the play pause feature to automatically pan through a waveform record To use it 1 Enable the play pause mode by pushing the play pause button 2 Adjust the play speed by turning the pan outer knob further The further you turn it the faster it goes D lt gt ai C K Set Clear gt ej 1785074 DPO4000 Series User Manual Analyze Waveform Data 167 Analyze Waveform Data 168 3 Change the play direction by reversing the direction that you are turning the pan knob During play up to a point the more you turn the ring the faster the waveform accelerates If you rotate the ring as far as it can go the play speed does not change but the zoom box quickly moves in that direction Use this maximum rotation feature to replay a portion of the waveform that you just saw and want to see again Pause the play pause feature by pushing the play pause button again Tke t gt 1785 074 Set Clear DPO4000 Series User Manual Analyze Waveform Data Searching and Marking Waveforms You can mark locations of interest in the acquired waveform The
83. le you want to verify that the incoming signal to digital equipment meets its specifications Specifically the transition time from a low logic level 0 8 V to a high logic level 2 0 V must be 10 ns or less 1785 078 lt 10ns To select the rise time measurement 1 Push Measure 1785 047 210 DPO4000 Series User Manual Application Examples 2 Push Select Measurement Select Remove Gating Statistics RCE Indicators Configure Measure Measure Levels Cursors Off Off ment ment 3 Turn multipurpose knob a to select channel 1 This step is only needed if you are acquiring data on more channels than just channel 1 Multipurpose 1785 039 4 Select the Rise Time measurement from the Rise Time side bezel menu DPO4000 Series User Manual 211 Application Examples 212 5 Press Reference Levels 6 Push Set Levels in to select units 7 Push High Ref and turn multipurpose knob a to enter 2 00 V If needed push Fine to change the sensitivity of the multipurpose knob 8 Push Low Ref and turn multipurpose knob a to enter 800 mV If needed push Fine to change the sensitivity of the multipurpose knob Reference Levels Set Levels in units High Ref a 2 00 V Mid Ref Low Ref a 800 mV DPO4000 Series User Manual Application Examples Rise time is typically measured between the 10 and 90 amplitude levels o
84. le button DPO4000 Series User Manual Save Setup To File To Setup 1 To Setup 2 To Setup 3 more 0000 Save and Recall Information 185 Save and Recall Information 4 Ifyou are saving information toa CompactFlash or USB memory device turn multipurpose knob a to scroll through the file structure Multipurpose D is the CompactFlash drive E E is the USB drive plugged into the USB port on the front of the oscilloscope 1785 039 m F and G are the USB drives plugged into the USB ports on the rear of the oscilloscope Push Select to open or close file folders K N 1785 049 Push the Menu Off button to cancel the save operation or push a side bezel menu Save to Selected File item to complete the operation 1785 057 186 DPO4000 Series User Manual Save and Recall Information Save 1 to Selected File Quick Tips Recalling the Default Setup Push the front panel Default Setup button to initialize the oscilloscope to a known setup See page 73 Using the Default Setup Saving with One Button Push After you have defined the save recall parameters with the Save Recall Menu button and menu you can make saves to files with a single push of the Save button For example if you have defined the save operation to save waveform data to a USB drive then each push of the Save button will save current waveform data to the defined USB drive 1 To
85. lled The DPO4000 can display both physical layer as analog waveforms and protocol level information as digital and symbolic waveforms To set up the bus trigger 1 If you have not already defined your bus using the front panel B1 or B2 buttons do so now See page 84 Defining a Serial Bus 3 1785 041 102 DPO4000 Series User Manual 2 Push Trigger Menu Trigger Setup and Run lt a en 1785 042 3 Push and keep pushing the Type button of the lm lower bezel menu until you select Bus Type Source Bus E Trigger On Address 07F Direction Mode amp Holdoff bsol 6 DPO4000 Series User Manual 103 Trigger Setup and Run 104 4 Push and keep pushing the Source Bus button of the lower bezel menu until you select the bus that you want to trigger on 5 Push and keep pushing the lower bezel menu Trigger On button until you select the desired trigger on feature If you are using the 12C bus trigger you can trigger on Start Repeated Start Stop Missing Ack Address Data or Address Data If you are using the SPI bus trigger you can trigger on SS Active MOSI MISO or MOSI amp MISO If you are using the CAN bus trigger you can trigger on Start of Frame Type of Frame Identifier Data Id amp Data End of Frame and Missing Ack B1 12C B2 12C DPO4000 Series User Manual 6 If you a
86. m gt Print Setup gt Select Printer menu item Print to a Printer Once you have connected a printer to your oscilloscope and set up print parameters you can print current screen images with a single push of a button 1 Push the printer icon button in the lower left corner of the front panel S 1785 059 Erasing DPO4000 Memory You can erase all setup and waveform information saved in the nonvolatile memory with the TekSecure function If you have acquired confidential data on your oscilloscope you may want to execute the TekSecure function before you return the oscilloscope to general use The TekSecure function Replaces all waveforms in all reference memories with null values 196 DPO4000 Series User Manual Save and Recall Information m Replaces the current front panel setup and all stored setups with the default setup Displays a confirmation or warning message depending on whether the verification is successful or unsuccessful To use TekSecure 1 Push Utility 2 Push System repeatedly until you select Config 3 Push TekSecure DPO4000 Series User Manual 1785 011 System Language Set Date amp Version Config English Time Frase v1 00 Memory 197 Save and Recall Information 4 Push OK Erase Setup and Ref Memory from OK the side bezel menu Erase Setup and Ref Memory To abort the procedure pu
87. mething is not working You tell the master IC to send a message to the slave IC Then you expect to receive data back and an LED to light The light never goes on Where in the ten or so commands that were sent out did the problem occur Once you locate the problem location how do you determine what went wrong You can use your DPO4000 Series oscilloscope with its serial triggering and long record length management features to track down the problem in both the physical layer and in the protocol layer of the bus Basic strategy First you will display and acquire the bus signal by setting up the bus parameters and trigger Then you will search through each packet with the search mark functions NOTE Triggering on bus signals requires use of the DPO4EMBD or the DPO4AUTO Serial Triggering and Analysis Module 238 DPO4000 Series User Manual Application Examples 1 Connect the channel 1 probe to the clock line 2 Connect the channel 2 probe to the data line oOo oOo m00 o 000 SDA 3 Push Autoset 1785 115 1785 010 DPO4000 Series User Manual 239 Application Examples 4 Push the B1 button and enter the parameters of your I2C bus in the resulting screen menus 1785 041 5 Push Trigger Menu 1785 042 6 Push Type to select Bus Enter trigger y NN fw Ma Address Direction Mode parameter
88. mples to build the posttrigger portion of the waveform record that is the part displayed after or to the right of the trigger event After a trigger is recognized the instrument will not accept another trigger until the acquisition is complete and the holdoff time has expired DPO4000 Series User Manual 91 Trigger Setup and Run 92 1785 0874 1785 087b Untriggered display Triggered display Trigger Modes The trigger mode determines how the instrument behaves in the absence of a trigger event Normal trigger mode enables the instrument to acquire a waveform only when it is triggered If no trigger occurs the last waveform record acquired remains on the display If no last waveform exists no waveform is displayed Auto trigger mode enables the instrument to acquire a waveform even if a trigger does not occur Auto mode uses a timer that starts when the acquisition is started and the pretrigger information is obtained If a trigger event is not detected before the timer times out the instrument forces a trigger The length of time it waits for a trigger event depends on the time base setting DPO4000 Series User Manual Trigger Setup and Run Auto mode when forcing triggers in the absence of valid triggering events does not synchronize the waveform on the display The waveform will appear t
89. mputer 0 2 c eee ee cece eee e eee eee e rrtt trt EE EEE EE EE EE EEE EGE EEE DEDEDE EEE E DEE EE Ea EES 34 DPO4000 Series User Manual i Table of Contents Get Acquainted with the Instrument ccc cece cee ce eee e nent eee e eee ened ene EASE EEE EEE DEE E RESEDA SG EEDA EE EG EEA EGE DERE SHEED EEE ES 45 Front Panel Menusand Conttols vis feiren iura Mi Pete ee reer A ae eg ho sed andar ae Pas 45 Front Pane l Connectors ee enee a a E devs piss A a AE a a a analy E EA 66 Side Pa el Connector e soa wie vidi bea a eae ds a 67 Rear Panel Connectors si sc20c scans biease ted E E E a saan aae r ated E E coed eateries 68 Acquire the Signal cc cece cece ee ee EEE EEE EEE EEE EERE EE EEE DEDEDE EEE EEE EEE EE EEE 70 Setting Up Signal NOt sc T a r Ss bien antonio has medic deal obi hote Silda c lecte te nie abe ot 70 Using the Default Setup 2 0 2 0c cssa cesses cade ecesegcsisegssheceeeeedusbstiaviasessuensessicestauendersereentadeeutaieneens 73 Using Autosete 0 38 stoic itctt oat SRA ee Ee tei RE RR at eS RAE ate ee tek A he a te 74 ACQUISITION CONCEDES sacc005 ses ios Ponds E AASE A EELEE lara aihs tes EEN E EEEE EEE ET dt head des 75 How the Acquisition Modes Work lt sec ice Sostbetoit tonnes consoud e ea once tenet O a Mceas nat abou aobecncbenent cs ten 78 Changing the Acquisition Mode and Record Length cccccccceeeeeeee eee eeeeee ee eeee eset ease ease eee taenenentnasennenes 80 Using Roll Mo
90. n 128 A Accessories 1 Acquire button 49 80 112 218 221 Acquisition input channels and digitizers 75 modes defined 78 readout 60 sampling 75 Adapter TEK USB 488 4 TPA BNC 4 10 Adding waveform 112 Advanced math 157 Altitude DPO4000 7 P6139A 8 Analysis and Connectivity xii Application module DPO4AUTO 84 DPO4EMBD 84 DPO4000 Series User Manual Application Module xiii 19 Applications modules 200 Attenuation 127 Auto trigger mode 92 Autoset 74 202 Autoset button 17 49 56 71 74 202 207 Autoset undo 74 Auxiliary readout 64 Average acquisition mode 79 B B Trigger 109 B1 B2 button 51 84 85 102 Backlight intensity 119 Bandwidth x Before Installation 1 Blackman Harris FFT window 157 BNC interface 10 Bus button 84 85 102 menu 51 85 Bus trigger defined 102 Buses 84 102 Index Button Acquire 49 80 112 218 221 Autoset 17 49 56 71 74 202 207 B1 B2 51 84 85 102 bus 84 85 102 Channel 50 Cursors 52 144 224 Default Setup 50 58 73 Fine 48 52 53 54 55 57 Force Trig 56 93 hard copy 57 196 Intensity 115 M 51 150 153 Math 51 150 153 Measure 49 129 139 140 203 207 210 213 Menu Off 58 204 Next 55 play pause 167 Play pause 54 Previous 54 printer icon 57 196 Ref 51 160 182 243 Index Run Stop 56 83 111 Save Recall 50 58 174 Search 49 170 Select 53 22
91. n R ooo e 20 minutes Remove all input signals probes and cables from channel inputs Input signals with AC components adversely affect SPC UUUUU 00000001 Cs 1785 012 DPO4000 Series User Manual 25 Installation 26 Push Utility Push System repeatedly until you select Calibration from the resulting pop up menu Push Signal Path from the lower bezel menu Push OK Compensate Signal path from the resulting side bezel menu The calibration will take approximately 10 minutes to complete 1785 011 Calibration 9 An Signal Path Factory System EEE OK Com pensate Signal Path DPO4000 Series User Manual Installation 6 After calibration verify that the status indicator s Signal Path Factory on the lower bezel menu displays Pass System Pass If it does not then recalibrate the instrument or have the instrument serviced by qualified service personnel 7 Service personnel use the factory calibration functions to calibrate the internal voltage references of the oscilloscope using external sources Refer to your Tektronix field office or representative for assistance with factory calibration NOTE Signal Path Compensation does not include calibration to the prob
92. n turn the multipurpose knobs to control their position Multipurpose Intensity o lt e Multipurpose 1785 020 DPO4000 Series User Manual Get Acquainted with the Instrument 3 Select Push to activate special functions For example when using the two vertical cursors and no horizontal ones are visible you can push this button to link or unlink the cursors When the two vertical and two horizontal cursors are both visible you can push this button to make either the vertical cursors or the horizontal ones active 4 Fine Push to toggle between making coarse and fine adjustments with the vertical and horizontal position knobs the trigger level knob and many operations of multipurpose knobs a and b 5 Waveform Intensity Push to enable multipurpose knob a to control waveform display intensity and knob b to control graticule intensity DPO4000 Series User Manual 53 Get Acquainted with the Instrument 54 6 10 11 Turn the lower multipurpose knob b when activated to move a cursor or set a numerical parameter value for a menu item Push Fine to make adjustments more slowly Zoom button Push to activate zoom mode Pan outer knob Turn to scroll the zoom window through the acquired waveform Zoom inner knob Turn to control the zoom factor Turning it clockwise zooms in further Turning it counterclockwise zooms out Play pause button Push to start or stop th
93. ncorporate active and reference waveforms measurements and or numeric constants To use this feature 1 Push Math 1785 050 DPO4000 Series User Manual 157 Analyze Waveform Data 2 Push Advanced Math 3 Use the side bezel menu buttons to create custom expressions 4 Push Edit Expression and use the multipurpose knobs and the resulting lower bezel buttons to create an expression When done push the side bezel menu OK Accept button 158 Dual Wim Math FFT Advanced Math DPO4000 Series User Manual Analyze Waveform Data For example to use Edit Expression to take the integral of a square wave 1 Push the lower bezel Clear button 2 Turn multipurpose knob a to select INTG 3 Push Enter Selection 4 Turn multipurpose knob a to select channel 1 5 Push Enter Selection 6 Turn multipurpose knob a to select 7 Push OK Accept DPO4000 Series User Manual 159 Analyze Waveform Data Using Reference Waveforms Create a reference waveform to store a waveform For example you might do this to set up a standard against which to compare other waveforms To use the reference waveforms 1 Push Ref R This brings up the lower bezel reference menu 1785 051 2 Use the resulting lower bezel menu selections R1 On R2 0f R3 Of R4 Off to display or select a reference waveform aa 160 DPO4000 Series User Manual Analyze Waveform Data
94. ng and or falling edges that are gt lt or a user specified time Bus 12C Search for Start Repeated Start Stop Missing Ack Address Data or Address and Data SPI Search for SS Active MOSI MISO or MOSI amp MISO CAN Search for Start of Frame Type of Frame Data Remote Error Overload Identifier standard or extended Data Identifier and Data End of Frame or Missing Ack DPO4000 Series User Manual 173 Save and Recall Information Save and Recall Information The DPO4000 Series oscilloscope provides permanent storage for setups waveforms and screen images Use the internal storage of the oscilloscope to save setups and reference waveform data Use external storage such as CompactFlash media and USB flash memory storage devices to save setups waveforms and screen images Use the external storage to carry data to remote computers for further analysis and for archiving Saving a Screen Image A screen image consists of a graphical image of the oscilloscope screen This is different from waveform data which consists of numeric values for each point in the waveform To save a screen image 1 Push Save Recall Menu Do not yet push the Save button 2 Push Save Screen Image from the lower bezel menu 174 1785 056 Save Screen lmage Save Waveform Save Setup Recall Waveform Recall Setup Assign Save to Setup File Utilities
95. nning 157 Rectangular 156 File format 175 Internal File Format ISF 182 Spreadsheet file format CSV 182 File system 174 177 180 Fine 53 Fine button 48 52 54 55 57 Firmware upgrade 28 Force Trig button 56 93 Frame graticule style 118 Frequency Input power DPO4000 6 Front cover 2 Front panel 45 Front panel connectors 66 Front panel overlay 22 Full graticule style 118 Functional check 15 DPO4000 Series User Manual G Gating 137 GPIB 36 38 68 GPIB address 38 Graticule Cross Hair 118 Frame 118 Full 118 Grid 118 intensity 115 styles 117 Grid graticule style 118 Ground 11 Ground lead 19 Ground strap 67 H Hamming FFT window 156 Hanning FFT window 157 Hard copy 57 189 Height DPO4000 6 Hi Res acquisition mode 79 Holdoff trigger 93 Horizontal delay 94 Index Horizontal position 55 94 95 120 156 234 235 and math waveforms 152 defined 72 Horizontal position scale readout 64 Horizontal scale 55 120 156 227 229 230 234 and math waveforms 152 defined 72 How to erase memory 196 print a hard copy 189 recall setups 184 recall waveforms 174 save screen images 174 save setups 184 save waveforms 174 Humidity DPO4000 7 P6139A 9 I2C 51 84 102 245 Index Icon Expansion point 61 Trigger level 63 Trigger position 61 Image orientation 175 191 Impedance 123 Indicator waveform baseline 65 Infinite per
96. nterested in For 12C push the bottom bezel Trigger On to trigger on Address Data Push Address On the side bezel menu push Address and rotate multipurpose knobs a and b as needed Set the address to don t cares X if you want to mask the address The data will be matched starting at the first byte without using a rolling window For CAN triggering occurs when the user selected data input matches the data and qualifier in the signal starting at the first byte Set the number of bytes to match the number of bytes of interest Use the data qualifier to perform lt gt gt and lt operations Triggering on identifier and data always matches the identifier and data selected by the user with the data starting at the first byte No rolling window is used DPO4000 Series User Manual Trigger Setup and Run Checking Trigger Status To quickly determine the settings of some key trigger parameters check the Trigger readout at the bottom of the display The readouts differ for edge and the advanced triggers CG 0 00 V 1 Trigger source channel 1 1785 118 2 Trigger slope rising 3 Trigger level 0 00 V Edge trigger readout Using A Main and B Delayed Triggers Combine an edge A Event Main trigger with the B Event Delayed trigger to capture more complex signals After the A Event occurs the trigger system looks for the B Event before triggering and displaying the waveform To use the B trigger
97. o roll across the screen If valid triggers occur the display will become stable You can also force the instrument to trigger by pushing the front panel Force Trig button Trigger Holdoff Adjust holdoff to obtain stable triggering when the instrument is triggering on undesired trigger events Trigger holdoff can help stabilize triggering since the oscilloscope does not recognize new triggers during the holdoff time When the instrument recognizes a trigger event it disables the trigger system until acquisition is complete In addition the trigger system a J N J remains disabled during the holdoff period that x y Y follows each acquisition Holdoffs J 1785427 DPO4000 Series User Manual 93 Trigger Setup and Run Trigger Coupling Trigger coupling determines what part of the signal is passed to the trigger circuit Edge triggering can use all available coupling types DC Low Frequency Rejection High Frequency Rejection and Noise Rejection All other trigger types use DC coupling only Horizontal Position Use horizontal position to acquire waveform detail in a region that is separated from the trigger location by a significant interval of time 94 Trigger point Acquired U waveform ww JUUL ae i me Horizontal 1 position Expansion point 1785 159 DPO4000 Series User Manual Trigger Setup and Run 1 Adjust the position delay time by rotating th
98. on 6 Turn multipurpose knob a to scroll through the list of letters numbers and other characters to find the first character in the printer name that Multi you want to enter ultipurpose 1785 039 ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz 0123456789_ 8 lt gt 2 7 Push Select or Enter Character to let the oscilloscope know that you have picked the proper character to use You can use the lower bezel buttons to edit joy g gt pack Delete Clear the name as needed Bs pace 8 Continue scrolling and pushing Select until you have entered all the desired characters 194 DPO4000 Series User Manual 9 Push the down arrow key to move the character cursor down a row to the Server Name field 10 Turn multipurpose knob a and push Select or Enter Character as often as needed to enter the name 11 If desired push the down arrow key to move the character cursor down a row to the Server IP Address field 12 Turn multipurpose knob a and push Select or Enter Character as often as needed to enter the name 13 When done push OK Accept DPO4000 Series User Manual Add Printer T 4 OK Accept Save and Recall Information 195 Save and Recall Information NOTE If you have multiple printers connected to the oscilloscope at the same time the oscilloscope will print to the printer listed in the Utility gt Syste
99. on as symbolic waveforms Plug in the DPO4EMBD application module to use the 12C and SPI features Plug in the DPO4AUTO application module to use the CAN features Using buses in two steps To quickly use serial bus triggering 1 Push B1 or B2 and enter parameters of the bus to trigger on You can separately use B1 and B2 to view two different buses 2 Push Trigger Menu and enter trigger parameters See page 98 Choosing a You can display bus information without triggering on the bus signal 175 082 DPO4000 Series User Manual Setting up serial bus parameters To set up bus parameters 1 Push B1 or B2 to bring up the lower bezel bus menu i 1785 041 Push Bus as many times as needed to select 2c the desired bus 12C SPI or CAN from the SPI pop up menu CAN DPO4000 Series User Manual Acquire the Signal 85 Acquire the Signal 3 Push Define Inputs and use the side bezel yy NN Define Thresholds Display As Bus i 7 Inputs B Decode buttons to assign oscilloscope channels to the Bus us ae serial bus signal s we For example with an 12C bus you might assign channel 1 to supply the SCLK signal and channel 2 to supply the SDA signal You can assign any channel to a predefined bus signal For all serial bus sources use channel 1 to channel 4 Do not use the Aux In input 4 Push Thresholds Define Thresholds Display As Bus
100. open or close file folders 6 Push the Menu Off button to cancel the save operation or push a side bezel menu OK Save item to complete the operation DPO4000 Series User Manual en OK Save 0 1785 049 1785 057 Save and Recall Information 179 Save and Recall Information 180 Naming Your File The oscilloscope gives all files it creates the default name tekxxxxx where xxxxx is an integer from 00000 to 99999 For example the first time you save a file that file is named tek00000 The next file is named tek00001 To define a file name of your own choosing 1 Push Save Recall Menu 2 Push Save Screen Image Save Waveform or Save Setup 3 Enter the file manager by pushing the side bezel menu To File item 1785 056 Save Save Save Setup Recall Recall Map Save File Utilities Screen Waveform Waveform Setup Button Image To File 9 DPO4000 Series User Manual 4 Push the front panel Select or the lower bezel menu Enter Character to select a character 5 Push the Menu Off button to cancel the file naming operation or push a side bezel menu Save to Selected File item to complete the operation DPO4000 Series User Manual er Save to Selected File 0 1785 049 1785 057 Save and Recall Information 181 Save and Recall Information Saving a
101. posed connections and components when power is present Do Not Operate in Wet Damp Conditions Do Not Operate in an Explosive Atmosphere Keep Product Surfaces Clean and Dry Provide Proper Ventilation Refer to the manual s installation instructions for details on installing the product so it has proper ventilation Terms in this Manual These terms may appear in this manual WARNING Warning statements identify conditions or practices that could result in injury or loss of life CAUTION Caution statements identify conditions or practices that could result in damage to this product or other property DPO4000 Series User Manual General Safety Summary Symbols and Terms on the Product These terms may appear on the product m DANGER indicates an injury hazard immediately accessible as you read the marking m WARNING indicates an injury hazard not immediately accessible as you read the marking CAUTION indicates a hazard to property including the product The following symbols may appear on the product A CAUTION Protective Ground A Mains Connected Refer to Manual Earth Terminal Chassis Ground ON Power o l On Off DPO4000 Series User Manual vij Environmental Considerations Environmental Considerations viii This section provides information about the environmental impact of the product Product End of Life Handling Observe the following guidelines when recycling an instrument or compon
102. pth from feet to front of front cover 145 mm 5 7 in Clearance 51 mm 2 in 0 0900 0UUUU Temperature Operating 0 C to 50 C Nonoperating 20 C to 60 C 6 DPO4000 Series User Manual Installation Humidity Operating High 40 C to 50 C 10 to 60 RH Operating Low 0 C to 40 C 10 to 90 RH Non operating High 40 C to 60 C 5 to 60 RH Non operating Low 0 C to 40 C 5 to 90 RH Altitude Operating 3 000 m about 10 000 ft Nonoperating Altitude 12 192 m 40 000 ft Random Vibration Operating 0 31 Grus 5 500 Hz 10 minutes per axis 3 axes 30 minutes total Non operating 2 46 Grus 5 500 Hz 10 minutes per axis 3 axes 30 minutes total Pollution Degree 2 Indoor use only Acquisition System 1 MO The maximum input voltage at the BNC between center conductor and shield is 400 Vpcax DF lt 39 2 250 Vams to 130 kHz derated to 2 6 V rus at 500 MHz The maximum transient withstand voltage is 800 Vpcax For steady state sinusoidal waveforms derate at 20 dB decade above 200 kHz to 13 V at 3 MHz and above Acquisition System 500 The maximum input voltage at the BNC between center conductor and shield is 5 Vrms with peaks lt 20 V DF lt 6 25 DPO4000 Series User Manual 7 Installation External Trigger
103. purpose knobs a and b to move Multipurpose the pair of horizontal cursors Cursors Getect Fine Intensity Multipurpose a 1785 068 146 DPO4000 Series User Manual 7 Push Select This makes the vertical cursors active and the horizontal ones inactive Now as you turn the multipurpose knobs the vertical cursors will move Push Select again to make the horizontal cursors active again 8 View the cursor and the cursor readout DPO4000 Series User Manual e Select 1785 049 Analyze Waveform Data lt 258us 3 48mV 330us 1 42mMV A588us A2 06mV 1785 147 147 Analyze Waveform Data 9 Push Cursors again This will turn off the Cursors cursor mode The screen will no longer a O display the cursors and the cursor readout 1785 048 148 DPO4000 Series User Manual Analyze Waveform Data Using cursor readouts Cursor readouts supply textual and numeric information relating to the current cursor positions Readouts appear in the upper right corner of the graticule If Zoom is on the readout appears in the upper right corner of the zoom window The oscilloscope always shows the readouts when the cursors are turned on When a bus is the currently selected waveform the readout is the decoded bus data in whatever format you have selected hexadecimal or binary A Readout The A readouts indicate the difference betwe
104. re setting up an I2C trigger and have selected a Trigger On selection of Address or Address Data push the lower bezel menu Address button to access the Address side bezel menu Press the side bezel menu Address button Enter the address parameters of interest with multipurpose knobs a and b Then push the lower bezel menu Direction button to enter the direction of interest Choices are Read Write and Read or Write DPO4000 Series User Manual Trigger Setup and Run 105 Trigger Setup and Run 106 Bus Trigger Data Matching Rolling window byte matching for 12C and SPI You can use a rolling window to trigger on data with SPI and 12C buses You define the number of bytes to match Then the oscilloscope uses a rolling window to find any match within a packet with the window rolling one byte at a time For example if the number of bytes is one the oscilloscope will match the first byte second byte third and so on within the packet If the number of bytes is two the oscilloscope will try to match any two consecutive bytes such as one and two two and three three and four and so on If the oscilloscope finds a match it will then trigger Specific byte matching non rolling window matching for CAN 12C and SPI You can trigger on a specific byte for SPI and I2C in two ways For 12C and SPI enter the number of bytes to match the number of bytes in the signal Then use don t cares X to mask the bytes that you are not i
105. refer to the specifications in the DPO4000 Technical Reference 128 DPO4000 Series User Manual Analyze Waveform Data Analyze Waveform Data After having properly set up the acquisition triggering and display of your desired waveform you can then analyze the results Select from features such as cursors automatic measurements statistics math and FFT Taking Automatic Measurements To take an automatic measurement 1 Push Measure 1785 047 2 Push Select Measurement Select Remove Gating Statistics Reference Indicators Configure MEST USGS Levels Cursors ment ment DPO4000 Series User Manual 129 Analyze Waveform Data 130 3 Turn multipurpose knob a to select the channel from which you want to measure This step is only needed if you are acquiring data on more than one channel Multipurpose 1785 039 4 Select the specific measurement or measurements from the side bezel menu 5 To remove a measurement push Remove Measurement and the specific measurement from the resulting side bezel menu Quick Tips To remove all measurements select Remove All E A A symbol appears instead of the expected numerical measurement if a vertical clipping condition exists Part of the waveform is above or below the display To obtain a proper numerical measurement turn the vertical scale and position knobs to make all of the waveform appear in the display DPO4000 Serie
106. rn multipurpose knob a to scroll through the list of available printers Push Select to choose the desired printer To add a USB printer to the list plug the printer into the USB slot The oscilloscope will automatically recognize it To add an Ethernet printer to the list use the instructions in the section titled Printing Over Ethernet DPO4000 Series User Manual 4 Select the image orientation portrait or landscape 5 Choose Ink Saver On or Off The On selection will print out a copy with a clear white background DPO4000 Series User Manual Landscape 1785 116a Save and Recall Information Portrait 1785 116b Ink Saver on 1785 1454 Ink Saver off 1785 145b 191 Save and Recall Information Printing Over Ethernet To set up the oscilloscope to print over Ethernet 1 Connect an Ethernet cable to the rear panel Ethernet port 2 Push Utility 192 1785 011 DPO4000 Series User Manual Save and Recall Information 3 Push System repeatedly until you select Print O Setup An Select Orientation Ink Saver Printer System N A Print Setup Select Printer 4 Push Select Printer 5 Push Add Network Printer Network Printer Rename Printer DPO4000 Series User Manual 193 Save and Recall Informati
107. robe Whenever you attach a passive voltage probe for the first time to any input channel compensate the probe to match it to the corresponding oscilloscope input channel To properly compensate your passive probe 1 Follow the steps for the functional check See page 15 Functional Check DPO4000 Series User Manual 17 Installation 2 Check the shape of the displayed TAIN ALUN M E M waveform to determine if your probe is P ated properly compensated roperly compensate Under compensated Over compensated 3 If necessary adjust your probe Repeat as needed 1785 140 18 DPO4000 Series User Manual Installation Quick Tips Use the shortest possible ground lead and signal path to minimize probe induced ringing and distortion on the measured signal Short ground lead Long ground lead Installing an Application Module CAUTION To avoid damage to the oscilloscope or application module observe ESD precautions See page 11 Powering On the Oscilloscope Turn off the oscilloscope power while removing or adding an application module See page 14 Powering Off the Oscilloscope DPO4000 Series User Manual 19 Installation Optional application module packages extend the capability of your oscilloscope Install up to four application modules at one time into the two slots with windows in the upper right corner of the front panel and the two additional slots hidden behind the two you can see Refer to the
108. s User Manual Analyze Waveform Data Selecting Automatic Measurements The following tables list each automatic measurement by category amplitude or time See page 129 Taking Automatic Measurements Time Measurements Measurement Description Period AF The time required to complete the first cycle in a waveform or gated region Period is the reciprocal of frequency and is measured in seconds Frequency F F The first cycle in a waveform or gated region Frequency is the reciprocal of the period it is measured in hertz Hz where one Hz is one cycle per second Delay E The time between the mid reference default 50 amplitude point of two different waveforms T f See also Phase Rise Time The time required for the leading edge of the first pulse in the waveform or gated region i to rise from the low reference value default 10 to the high reference value default 90 of the final value Fall Time The time required for the falling edge of the first pulse in the waveform or gated region to fall A from the high reference value default 90 to the low reference value default 10 of the final value Positive Duty The ratio of the positive pulse width to the signal period expressed as a percentage The duty Cycle AT cycle is measured on the first cycle in the waveform or gated region DPO4000 Series User Manual 131 Analyze Waveform Data Time Measurements cont Measurement Descr
109. s in the resulting screen menus Type Source Bus Trigger On O7F amp Holdoff B1 12C 240 DPO4000 Series User Manual Application Examples 7 Analyze the physical layer For example you Cursors can use the cursors for manual measurements E O See page 144 Taking Manual Measurements with Cursors You can also use the automated measurements See page 129 Taking Automatic Measurements 1785048 8 Push Search Set Search Marks to On Enter a search type source and other parameters as relevant on the lower bezel menu and associated side bezel menus See page 163 Managing Long Record Length Waveforms 1785 055 9 Jump ahead to the next search point by pushing the right arrow key Push it again and gt again until you see all the events Jump back acini with the left arrow key Do you have all the packets that you expected to have If not at least you have narrowed your search down to the last packet sent DPO4000 Series User Manual 241 Application Examples 242 10 Analyze the decoded packets in the protocol layer Did you send the data bytes in the correct order Did you use the correct address ML DE n AddrIw 76 EEE E EE a i nE i aa i penam ea HO aeath B Apecran ope EULA URI Le oP Rising vif ae ial DPO4000 Series User Manual Index Symbols and Numbers 50 Q protectio
110. se marks help you limit your analysis to particular regions of the waveform You can mark areas of the waveform automatically if they meet some special criteria or you can manually mark each item of interest You can use arrow keys to jump from mark to mark area of interest to area of interest You can automatically search and mark many of the same parameters that you can trigger on Search marks provide a way to mark a waveform region for reference You can set marks automatically with search criteria You can search for and mark regions with particular edges pulse widths runts logic states rise fall times setup and hold and bus search types To manually set and clear delete marks 1 Move the zoom box to the area on the waveform where you want to set or clear a search mark by turning the pan outer wa knob Push the next or previous lt arrow 1735054 button to jump to an existing mark 2 Push Set Clear If no search mark is at the screen center the oscilloscope will add one DPO4000 Series User Manual 169 Analyze Waveform Data 170 3 To automatically set and clear delete search marks 1 Now investigate your waveform by moving from search mark to search mark Use the next or previous lt arrow button to jump from one marked location to another without adjusting any other controls Delete a mark Push the next or previous lt arrow button to jump to
111. set Undo to undo the Undo Autoset last Autoset 74 DPO4000 Series User Manual Quick Tips Acquire the Signal To position the waveform appropriately Autoset may change the vertical position Autoset always sets vertical offset to 0 V If you use Autoset when no channels are displayed the instrument turns on channel one 1 and scales it Acquisition Concepts Before a signal can be displayed it must pass through the input channel where it is scaled and digitized Each channel has a dedicated input amplifier and digitizer Each channel produces a stream of digital data from which the instrument extracts waveform records Sampling Process Acquisition is the process of sampling an analog signal converting it into digital data and assembling it into a waveform record which is then stored in acquisition memory DPO4000 Series User Manual LIN Input signal 5 0V 5 0V sx av dv ov OV d d Vs Sampled points 5 0V 5 0V Digital values 75 Acquire the Signal 76 Real time Sampling DPO4000 series oscilloscopes use real time sampling In real time sampling the instrument digitizes all of the points it acquires using a single trigger event a one Record points JUUUUUUUUUL Sampling rate DPO4000 Series User Manual Acquire the Signal Waveform Record The instrument builds the waveform record through use of the following parameters the resulting lower bezel menu Sample interv
112. sh Menu Off 1785 057 198 DPO4000 Series User Manual Save and Recall Information 5 Power off the oscilloscope and then power it p Ss back on to complete the process 4 D a Bos a g 0009 0 06 0090000 QOOUO 0000 ooo A AC 00 T O sce io oo tas 1785 071 DPO4000 Series User Manual 199 Use Application Modules Use Application Modules Optional application module packages extend the capability of your oscilloscope Install up to four application modules at one time Application modules go into the two slots with windows in the upper right corner of the front panel Two additional slots are directly behind the two that you can see Refer to the DPO4000 Series Application Module Installation Instructions that came with your application module for instructions on installing and testing an application module Some modules are described below Additional packages may be available Contact your Tektronix representative or visit our Web site at www tektronix com for more information Also refer to Contacting Tektronix at the beginning of the manual The DPO4EMBD Serial Triggering and Analysis Module adds triggering on packet level information in serial buses used in embedded designs 12C and SPI as well as analytical tools to help you efficiently analyze your serial bus These
113. sistence 115 Ink Saver 175 191 Inner knob 54 152 Installing application modules xiii Intensity button 115 Internal File Format 182 K Knob inner 54 152 Multipurpose 24 48 53 54 80 86 177 224 225 outer 54 pan 54 166 169 Trigger level 97 Vertical position 57 72 Vertical scale 57 72 zoom 54 152 164 246 L LabView 34 Landscape 175 191 Language change 20 overlay 22 Level trigger 96 Logic trigger defined 100 Long record length 238 Long record length management 163 M button 51 150 153 Main trigger 107 Mark 169 Math Advanced 157 button 51 150 153 Dual waveform 150 FFT 153 menu 51 waveforms 150 Measure button 49 129 139 140 203 207 210 213 Measurement menu 49 Measurements automatic 129 cursor 144 defined 131 reference levels 142 snapshot 140 statistics 139 Memory erasure of 196 Menu Bus 51 85 Cursors 144 Default Setup 50 Math 51 Measurement 49 Reference 51 160 161 Save Recall 50 58 174 Trigger 49 98 108 226 Utility 20 23 50 57 117 189 Vertical 50 122 Menu buttons 49 Menu Off button 58 204 Menus 45 Mode roll 83 Multipurpose knob 48 53 54 80 86 177 224 225 DPO4000 Series User Manual N Network printing 192 Next button 55 Normal trigger mode 92 O Offset and position 128 OpenChoice 2 35 Operating specifications 6 Orientation of the image 175 191
114. tal position and scale The horizontal position determines the number of pretrigger and posttrigger samples The horizontal scale determines the size of the acquisition window relative to the waveform You can scale the window to contain a waveform edge a cycle several cycles or thousands of cycles 72 1785 030 1785 031 DPO4000 Series User Manual Acquire the Signal Quick Tip Use the zoom feature to see multiple acquisition cycles in the upper part and a single cycle in the lower part of the display See page 163 Managing Long Record Length Waveforms Using the Default Setup To return the oscilloscope to its default settings 1 Push Default Setup Default 2 If you change your mind push Undo Default Undo O Setup to undo the last default setup pens Quick Tip m The DPO4000 Technical Reference describes the default setup settings in detail This manual is available on the accompanying CD or at www tektronix com DPO4000 Series User Manual 73 Acquire the Signal Using Autoset Autoset adjusts the instrument acquisition horizontal trigger and vertical controls such that it displays two or three waveform cycles with the trigger near the midlevel 1 Connect the probe and then select the input channel See page 70 Setting Up Signal Input o E G 1785 033 1785 010 2 Push Autoset to execute an Autoset 3 If desired push Auto
115. tan ekadea tet shuts acacd cance ades at aaantuetaddacetemnaaiatoanactadescenacnaied lotweda te ece ards 150 USING RET cacesiei a edn na a eth tered teh tis sal eles al Celt bh cone tad dd rast a a a weal Nan a8 153 Using Advanced Mathis re soled ecets aa ease ties e teeta dare ans Mader idahdtbewe ples yeuden tae tuned een ats s 157 Using Reference Wavefonns nerna ti au sisardacnea tad sca dieses syetd eae gid caida dunettina did a EE deta A A O 160 Managing Long Record Length Waveforms ccccccecee cent eect e eee entre rrtt rttr EEE DE EERE EEE E EGE E EEG EE Ea EASE EEE EEE 163 Save and Recall Information irere ek oa oe tap nas eas ete a Seascapes ba ee bade E old E E A 174 Savingsa Screen Mages t 2 4m s4r2seacun ven tek ansdanka a E anced aianstadethehatediate ata acento E O O eat aress 174 Saving and Recalling Waveform Data ccccececce cece eee eens eee e rrtt trr GEA ee EGET EASES EEE SGA DEDEDE EASE EE EEDA EG EE EE EES 176 Saving and Recalling Setups ismine nerna i ahaotasatlnuntadenmeasaddacuh aes orh arene duck nes A E A 184 DPO4000 Series User Manual jii Table of Contents Saving with One Button PUSH sccnso5 esta dods hance aiametd haa ce det bh aaa asedasid ales aigetd bathe cid ene a ALa tens 187 Printing a Hard Copys 2 c2cs52uenh ean tec Berea Ronde E wide E Poesia dd edi a a a ea Badan 189 Erasing DPO4000 M MOMys sinc naina a a vite view waedandiwinds o a a a a oe obevenaiie 196 Use Applica
116. the mark you want to clear To remove the current center positioned mark just push Set Clear It works on both manually and automatically created marks Push Search 1785 055 DPO4000 Series User Manual 2 Select the search type desired from the lower bezel menu The search menu is similar to the trigger menu 3 From the side bezel menu turn on the search 4 On the screen hollow triangles show the location of automatic marks and solid triangles show the custom user defined locations These appear on both normal and zoomed waveform views DPO4000 Series User Manual Analyze Waveform Data Search Search Source Slope Threshold Type ra 0 00V 1785 155 171 Analyze Waveform Data 172 5 Again you can quickly investigate your waveform by moving from search mark to search mark with the next and previous lt arrow buttons No other adjustments are needed Quick Tips You can copy trigger settings to search for other locations in your acquired waveform that meet the trigger conditions You can also copy search settings to your trigger Custom User marks are saved with the waveform when the waveform is saved and when the setup is saved a Automatic search marks are not saved with the waveform when the waveform is saved However you can easily recapture them by re using the search function The search criteria are save
117. the side bezel menu to choose measurement gating using cursors 7 Place one cursor to the left and one cursor to the right of the second pulse DPO4000 Series User Manual Application Examples Select Remove Gating Statistics Reference Indicators Configure Measure Measure Off Levels Cursors ment ment Between Cursors 215 Application Examples 8 View the resulting width measurement 160 ms for the second pulse Width 160ms 1785 177 216 DPO4000 Series User Manual Analyzing Signal Detail In this example you have a noisy signal displayed on the oscilloscope and you need to know more about it You suspect that the signal contains much more detail than you can currently see in the display DPO4000 Series User Manual Application Examples 1785 175 217 Application Examples Looking at a Noisy Signal The signal appears noisy You suspect that noise is causing problems in your circuit To better analyze the noise 1785 046 1 Push Acquire 2 Push Mode on the lower bezel menu Record Reset Waveform Length Horizontal Display 10k Position 218 DPO4000 Series User Manual 3 Push Peak Detect on the side bezel menu 4 Push Intensity and turn multipurpose knob a to see the noise more easily DPO4000 Series User Manual p wn D 3 B D i Peak i D 2 p D wo Envelope gt lt
118. the trigger level without going to a menu 2 Push the front panel Set to 50 button to quickly set the trigger level to the midpoint of the waveform Delayed Trigger System Trigger Level Set to 50 Trigger Setup and Run 1785 117 Trigger with the A Main trigger system alone or if using an edge trigger combine the A Main trigger with the B Delayed trigger to trigger on sequential events When using sequential triggering the A trigger event arms the trigger system and the B trigger event triggers the instrument when the B trigger conditions are met A and B triggers can and typically do have separate sources The B trigger condition can be based on a time delay or a specified number of events See page 107 Using A Main and B Delayed Triggers DPO4000 Series User Manual 97 Trigger Setup and Run Choosing a Trigger To select a trigger 1 Push Trigger Menu 2 Push Type repeatedly to select the trigger type to use NOTE The bus trigger requires use of the DPO4EMBD or the DPO4AUTO application module 98 le amp 1785 042 Pulse Width Runt Logic Setup amp Hold Rise Fall Time Video Bus DPO4000 Series User Manual 3 Complete the trigger setup using the lower bezel menu controls displayed for the trigger type The controls to set up the trigger vary depending on the trigger type Selecting Triggers Trigger Type
119. tion Modules 5422 2 2 5 2 sends As teacics Sata T de Caled dacG areas tate Uehdiua sa Gace Svan E 200 ApplicationiExamples i03c 2626586 cette a Mo Mie eM ei A lh Mt Al ee Ae A th ohe Kea 201 Taking Simple Measurements 0cccccec cece eee e eee eee rttr tt rtre EEE DERE EE DEDEDE EEDA SG EG EEA ED EEE S GED E EE SESE DEE EErEE 201 Analyzing Signal Details o se thon 2 teenie a a so e a e A eae aneenets ab Ih eles 217 Triggering on a Video Signal n ennasnsne kena rrrrr rrtt rrtt rttr rttr r EErEE EEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE EE 226 Capturing a Single Shot SINA a a T Aa a a R oaas 230 Correlating Data With a TLA5000 Logic Analyzer cccccceeee cent eect reer eee rrtt rrtt rrr tee tee Sree et EErEE EErEE EErEE 235 Tracking Down Bus AnomalieS lt 2 2 s0 o a8 suds n Modads Hes He eet Ma am ane Me baat aoet es eon 238 Index iv DPO4000 Series User Manual General Safety Summary General Safety Summary Review the following safety precautions to avoid injury and prevent damage to this product or any products connected to it To avoid potential hazards use this product only as specified Only qualified personnel should perform service procedures To Avoid Fire or Personal Injury Use Proper Power Cord Use only the power cord specified for this product and certified for the country of use Connect and Disconnect Properly Do not connect or disconnect probes or test leads while they are connecte
120. ual English 071 1785 XX French 071 1799 XX Italian 071 1800 XX German 071 1801 XX Spanish 071 1802 XX Japanese 071 1803 XX Portuguese 071 1804 XX Simplified Chinese 071 1805 XX Traditional Chinese 071 1806 XX Korean 071 1807 XX Russian 071 1808 XX Specifications and Performance The DPO4000 Technical Reference 071 1843 XX PDF only Verification Programmer Commands The DPO4000 Programmer Manual 071 1845 XX PDF only Analysis and Connectivity Tools The optional Getting Started with OpenChoice Solutions Manual 020 2514 XxX includes a CD xii DPO4000 Series User Manual Preface To read about Use these documents Servicing and calibration The optional DPO4000 Service Manual 071 1844 XX Installing and testing application The DPO4000 Series Application Module Installation Instructions manual 07 1 1833 XX modules 11 languages Conventions Used in This Manual The following icons are used throughout this manual Sequence Step Front panel power Connect power Network DPO4000 Series User Manual xiii Preface xiv DPO4000 Series User Manual Installation Before Installation Installation Unpack the oscilloscope and check that you received all items listed as standard accessories The following pages list recommended accessories and probes instrument options and upgrades Check the Tektronix Web site www tektronix com for the most current information Standard Accessories
121. ument Using the Menu System To use the menu system 1 Push a front panel menu button to display the menu that you want to use 46 O a D amp Intensity ey a 26 oe 29000 g g 2 ape a1 amp Save Menu REU Cmi 1785 013 DPO4000 Series User Manual 2 Push a lower bezel button to select a menu item If a pop up menu appears push the lower bezel button repeatedly to select the desired choice 3 Push a side bezel button to choose a side bezel menu item If the menu item contains more than one choice push the side bezel button repeatedly to cycle through the choices DPO4000 Series User Manual Get Acquainted with the Instrument ito 2 1 Oe amp eD GD kW J D D D D D N 1785 015 1785 014 47 Get Acquainted with the Instrument 4 To remove a side bezel menu push the lower bezel button again or push Menu Off e 5 Certain menu choices require you to set Tma a numerical value to complete the setup 7 co Use the upper and lower multipurpose Srs 6 knobs a and b to adjust values z A 6 Push Fine to turn off or on the ability to D make smaller adjustments Alls JD DIIS o s UUUUUUU
122. upling and invert status Adjust with the Vertical Scale knob and the channel 1 2 3 or 4 menus 4 00us T Y 0 00000s 1785 136 1785 138 D 20 0mv 1785 139 DPO4000 Series User Manual Get Acquainted with the Instrument 13 Measurement readouts show the selected C1 Period 995 us measurements You can select up to four CD Fr 1 004 kH measurements to display at one time eq Z A A symbol appears instead of the expected numerical measurement if a vertical clipping condition exists Part of the waveform is above or below the display To obtain a proper numerical measurement turn the vertical scale and position knobs to make all of the waveform appear in the display 14 The waveform baseline indicator shows the zero volt level of a waveform ignoring the effect of offset The icon colors correspond to the waveform colors 1785 125 DPO4000 Series User Manual 65 Get Acquainted with the Instrument Front Panel Connectors 1 Channel 1 2 3 4 Channel inputs with D TekVPI Versatile Probe Interface i 5 ie 2 Aux In Trigger level range is adjustable i Dk L 5 from 8 V to 8 V The maximum input O T voltage is 400V peak 250V RMS Input GP Is resistance is 1 MQ 1 in parallel with O T 13 pF 2 pF D C3 ED D Ce sone gt
123. ush USB Then push Enabled on the side bezel menu 9 Run your application software on your 3 computer tg Start 10 In case of problems getting oscilloscope to PC communications to work refer to the networking troubleshooter To bring up the ra ge 10 38 AM troubleshooter click the TekVISA icon on the System Tray of your MS Windows computer Then go to the online help Quick Tips The DPO4000 comes with a variety of Windows based software tools designed to ensure efficient connectivity between your oscilloscope and your computer There are tool bars that speed connectivity with Microsoft Excel and Word There is also a standalone acquisition program called the OpenChoice Desktop The rear panel USB 2 0 device port is the correct USB port for computer connectivity Use the rear and front panel USB 2 0 host ports to connect your oscilloscope to storage devices and printers DPO4000 Series User Manual 39 Installation Using e Scope e Scope lets you access any Internet connected DPO4000 Series Oscilloscope from a browser on your workstation PC or laptop computer No matter where you are your DPO4000 is as close as the nearest browser To set up e Scope communications between your oscilloscope and a Web browser running on a remote computer 1 Connect the DPO4000 to your computer network with the appropriate Ethernet cable 2 Push Utility 1785 011 40 DPO4000 Series User Manual 3 Push System r
124. veform Data 114 Push Dots Only On Off from the side bezel menu Dots on will display the waveform record points as dots on the screen Dots off connects the dots with vectors Push Persist Time and turn multipurpose knob a to have waveform data remain on screen for a user specified amount of time Push Set to Auto to have the oscilloscope automatically determine a persistence time for you Push Clear Persistence to reset the persistence information Waveform Display Dots Only On Off Persist Time Set to Auto Clear Per sistence ee DPO4000 Series User Manual Display Waveform Data Quick Tips m Variable persistence accumulates record points for a specified time interval Each record point decays independently according to the time interval Use variable persistence for displaying infrequently appearing signal anomalies such as glitches m Infinite persistence continuously accumulates record points until you change one of the acquisition display settings Use infinite persistence for displaying unique signal anomalies such as glitches Setting Waveform and Graticule Intensity 1 Push the front panel Intensity button Intensity 1785 062 This will bring up the intensity readout on the Wavefrom Intensity 33 display ae on Graticule Intensity 33 1785 160 DPO4000 Series User Manual 115 Display Waveform Data 2 Rotate multipurpose knob a to select the

Download Pdf Manuals

Related Search

Related Contents

FORD TRANSIT Betriebsanleitung  Odon, l`exception et le silence  - Sony Professional  Sony MV-65ST Portable DVD Player User Manual  日本語  Bedienungsanleitung F9  

Copyright © All rights reserved. Failed to retrieve file