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1. e PM 6680 Frequency Counter with a prescaler for the Channel C input Option PM 9621 PM 9624 or PM 9625 and ovenized timebase Option PM 9690 or PM 9691 e BNC f to Type N m adapter e Nto BNC cable supplied with the Scope Calibrator Set the PM 6680 s FUNCTION to measure frequency with auto trigger measurement time set to 1 second or longer and 50 Q impedance Set the Calibrator Mainframe to Marker mode Press on the Calibrator Mainframe to activate the output Then follow these steps to for each period listed in Table 3 23 3 48 Calibration and Verification 3 Program the Calibrator Mainframe to the output as listed in Table 3 23 2 Using the N to BNC cable connect the CHAN 1 connector on the Calibrator Mainframe to the PM 6680 at the channel indicated in Table 3 23 You will need the BNC N adapter for the connection to Channel C 3 Set the filter on the PM 6680 as indicated in the table Allow the PM 6680 reading to stabilize then record the PM 6680 reading for each frequency listed for the Calibrator Mainframe 4 Invert the PM 6680 s frequency reading to derive the period For example a reading of 1 000006345 kHz has a period of 1 1 000006345 kHz 0 999993655 ms Record the period in the table and compare to the tolerance column Table 3 23 Marker Generator Verification Period Measured Value Deviation 1 Y
2. Verification Table 3 13 AC Current Verification Actual Topline Baseline Calculated Resistor Reading Reading Current Value Vdc Vdc B C A Nominal Output 0 05 W mA Current Frequency Error Tolerance Resistance Value Hz A B C D D Nom mA 0 10 mA 1kQ 45 Q 0 000750 0 10 mAQ 1kQ 45 0 000750 0 10 mAQ 1k O 500 0 000750 0 10 mAQ 1k OQ 500 0 000750 0 10 mAQ 1k O 1000 0 000750 0 10 mAQ 1k OQ 1000 0 000750 1 099 mA 9 100 Q 45 0 003248 1 099 mA 100 Q 45 0 003248 1 099 mA 100 Q 500 0 003248 1 099 mA 100 Q 500 0 003248 1 099 mA 100 Q 1000 0 003248 1 099 mA Q 100 Q 1000 0 003248 1 10 mAQ 100 Q 45 0 003250 1 10 mAQ 100 Q 45 0 003250 1 10 mAQ 100 Q 500 0 003250 1 10 mAQ 100 Q 500 0 003250 1 10 mAQ 100 Q 1000 0 003250 1 10 mAQ 100 Q 1000 0 003250 10 99 mAQ 10 Q 45 0 027975 10 99 mAQ 10 Q 45 0 027975 10 99 mAQ 10 Q 500 0 027975 10 99 mAQ 10 Q 500 0 027975 10 99 mAQ 10 1000 0 027975 10 99 mAQ 10 Q 1000 0 027975 11 00 mAQ 10 Q 45 0 028000 11 00 mAQ 10 Q 45 0 028000 11 00 mAQ 10 Q 500 0 028000 11 00 mAQ 10 Q 500 0 028000 11 00 mAQ 10 Q 1000 0 028000 3 29 5820A Service Manual 3 30 3 36 Edge Amplitude Verification For the edge amplitude
3. 3 67 Adjusting the Aberrations for the Edge Function 3 68 Equipmierit SOUP wa issscdeacccsssshcncetaaabacesssentdevaadubensoctpedseensesearibende 3 69 Adjusting the Edge Aberrations esee 3 2 Calibration and Verification Introduction 3 3 1 Introduction Use this chapter as a guide to calibration and for verification of the Scope Calibrator s performance to specifications Equipment Required for Calibration and Verification Table 3 1 lists the equipment recommended models and minimum specifications required for each calibration and verification procedure Table 3 1 Scope Calibrator Calibration and Verification Equipment Wave Generator and Edge Amplitude Calibration AC Voltage and TD Pulser Verification Minimum Use Specifications Instrument Model Digital HP 3458A Multimeter Voltage 1 8 mV to 130 V p p Uncertainty 0 06 Edge 4 5 mV to 2 75 V p p Uncertainty 0 06 Adapter Pomona 1269 BNC f to Double Banana Plug Termination Feedthrough 50 Q 1 used with Edge Amplitude Calibration and AC Voltage Verification N to BNC Cable supplied with Scope Calibrator Edge Rise Time and Aberrations Verification High Frequency Tektronix 11801 with Frequency 8 to 20 GHz Digital Storage Tektronix SD 22 26 Oscilloscope sampling head or Tektronix TDS 820 with 8 GHz bandwidth 1 Resolution 4 5
4. S 5 m sme dues MENU NEW LJ OJ Ge Lee F WORE Oe Ss OEE HA JC oe J EE 47 0 cm 18 5 in 6 4 cm 2 5 in For Cable Access yhO03f eps Figure 1 2 5820A Calibrator Dimensional Outline 1 7 General Specifications Table 1 1 General Specifications Warmup Time Twice the time since last warmed up to a maximum of 30 minutes Settling Time 5 seconds or faster for all functions and ranges Standard Interfaces IEEE 488 GPIB RS 232 Temperature Performance Operating 0 C to 50 C Calibration tcal 15 C to 35 C Storage 20 C to 70 C Electromagnetic Designed to operate in Standard Laboratory environments where the Compatibility Electromagnetic environment is highly controlled If used in areas with Electromagnetic fields gt 1 V m there could be errors in output values From 80 252 MHz the current output is susceptible to a field strength of gt 0 165 V M 1 6 Introduction and Specifications General Specifications 1 Temperature Coefficient Temperature Coefficient for temperatures outside tcal 5 C is 0 1X C of 1 year specification Relative Humidity Operating 80 96 to 30 C 70 to 40 C lt 40 96 to 50 C Storage 95 noncondensing Altitude Operating 3 050 m 10 000 ft maximum
5. WITHOUT SIGNAL MODUL SCALE 2 0 CABLE DIAGRAM FIVE CHANNE z ce j CO Lu z o CO ac E a Lu a e E BOTTOM VIEW COAX CONNECTIONS o cIm J4 P4 P5 J5 5 CH TRIGGER CABLE 58004 4403 P TO FRONT PANEL OUTPUT BLOCK 5820A Final Assembly Sheet 7 of 9 yu177f eps Figure 6 1 Final Assembly cont 6 14 Replaceable Parts List of Replacement Parts 6 Table 6 6 Single Channel With GHZ Option List of Replaceable Parts Reference Description Qty Fluke Stock Number Designator A54MP2 ADAPTER COAX SMA F SMA M SMA F 1 688710 TEE A54MP8 CABLE SMA RT TO RT 2 659968 A54MP13 A54W6 CABLE TRIGGER 5 CHANNEL 1 926009 A54W9 12 CABLE SMA ST TO RT 4 626017 A56MP9 AUX CABLE SMA RT RT 1 647104 A64MP51 CABLE GHZ OUT 1 661964 A99MP6 CABLE CURRENT LOOP 1 673092 6 15 5820A Service Manual WHT BLK GHZ 9 SEE DETAIL A BLU WHT BLU WHT BRN SEE SECTION A A SHEET J WHT BLU ATTACHMENT OF WIRES FROM TRANSFORMER H N ga No
6. Calibrator Mainframe PM 6680 PM 6680 Tolerance Frequency Settings Reading Output 3 5 V p p Channel Filter Frequency Hz 10 MHz A Off 3 3 601 MHz C Off 198 3 1000 MHz C Off 330 1500 MHz C Off 495 2000 MHz C Off 660 2100 MHz C Off 693 Table 5 5 Fast Edge Rise Time for Channels 1 2 and 5 Measured Channel Function Measurement Amplitude Frequency Value Deviation Spec s edge rise time 0 25 1000000 150 ps 5820A Service Manual Table 5 6 GHz Leveled Sine Wave Harmonics Verification Channels 1 2 and 5 Nominal Value Measured Deviation 1 Year Spec Harmonic V p p Frequency Value dB dB dB 2nd harmonic 0 0399 10 000 000 33 3rd harmonic 0 0399 10 000 000 38 2nd harmonic 0 099 10 000 000 33 3rd harmonic 0 099 10 000 000 38 2nd harmonic 0 399 10 000 000 33 3rd harmonic 0 399 10 000 000 38 2nd harmonic 1 2 10 000 000 33 3rd harmonic 1 2 10 000 000 38 2nd harmonic 3 5 10 000 000 33 3rd harmonic 3 5 10 000 000 38 2nd harmonic 3 5 625 000 000 33 3rd harmonic 3 5 625 000 000 38 2nd harmonic 3 5 655 000 000 33 3rd harmonic 3 5 655 000 000 38 2nd harmonic 3 5 725 000 000 33 3rd harmonic 3 5 725 000 000 38 2nd harmonic 3 5 795 000 000 33 3rd harmonic 3 5 795 000 0
7. 4 2 Maintenance 4 Introduction 4 1 4 2 Introduction This chapter explains how to perform routine maintenance to keep a normally operating 5820A Calibrator in service These tasks include e Replacing the fuse e Cleaning the air filter e Cleaning the external surfaces Replacing the Line Fuse The line power fuse is accessible on the rear panel The fuse rating label above the ac power input module shows the correct replacement fuse for each line voltage setting Table 4 1 lists the fuse part numbers for each line voltage setting To check or replace the fuse refer to Figure 4 1 and proceed as follows 1 Disconnect line power 2 The line power fuse and line voltage switch are located in a compartment on the right end of the ac input module To open the compartment and remove the fuse insert the blade of a standard screwdriver to the left of the tab located at the left side of the compartment cover Pry the tab out of the slot and the compartment cover will pop part way out Remove the compartment cover with your fingers The fuse comes out with the compartment cover and can be easily replaced ON HN ui on To reinstall the fuse push the compartment cover back into the compartment until the tab locks with the ac input module Table 4 1 Replacement Fuses Part Number Fuse Description Line Voltage Setting A109181 2A 250V SB Time Delay 100 V or 120 V A109272 1A 250V SB Time Delay 200 V or 240 V
8. Leveled sine wave Procedures provided in this manual amplitude frequency harmonics and flatness Time marker period Procedure provided in this manual Wave generator Procedure provided in this manual amplitude Pulse width period Procedure provided in this manual MeasZ resistance Procedure provided in this manual capacitance Overload functionality Procedure provided in this manual 3 19 5820A Service Manual 3 20 3 25 3 26 oe DC Voltage Verification This procedure uses the following equipment e Hewlett Packard 3458A Digital Multimeter e BNC f to Double Banana adapter e 50 Q feedthrough termination e Nto BNC cable supplied with the Scope Calibrator Set the Calibrator Mainframe to the Volt menu Follow these steps to verify the wave generator function Verification at 1 MQ For the 1 MQ verification connect the Calibrator Mainframe s CHAN 1 connector to the HP 3458A input using the cable and the BNC f to Double Banana adapter Make sure the Calibrator Mainframe impedance is set to 1 MO The blue softkey under Output toggles the impedance between 50 Q and 1 MQ 1 Set the HP 3458A to DCV Auto Range NPLC 10 FIXEDZ on 2 Program the Calibrator Mainframe to output the voltage listed in Table 3 5 Press on the Calibrator Mainframe to activate the output 3 Allow the HP 3458A reading to stabilize then record the HP 3458A reading for each voltage in Table 3 5
9. SINGLE CHANNEL WITH o s z S a Ss 5 Ea FORM WIRES AS SHOWN CLEAR OF POWER SWITCH TO MH OUT lt L Ge eo lt L C Lu aa lt L O TO GHZ IN BEC IvY 3182 4399141 HO m 8004 4413 r MODIFICATION OF ROUTING WIRES ON FILTER 5820A Final Assembly Sheet 8 of 9 yu178f eps Figure 6 1 Final Assembly cont 6 16 Replaceable Parts 6 List of Replacement Parts JINGOW TWNOIS J L ums Bois f FIVE CHANNEL WITH GHZ CABLE DIAGRAM JINQOW 7H9 5820A 4417 5800A 4403 co z e o uo E e ce ac a La gt a o I 5 CHANNEL TRIGGER CABLE BOTTOM VIEW COAX CONNECTIONS TO FRONT PANEL OUTPUT BLOCK 5820A Final Assembly Sheet 9 of 9 yu179f eps Figure 6 1 Final Assembly cont 6 17 5820A Service Manual Index Verification 3 30 5 Edge function 5820A Operator Man ise time veri ication 3 31 1 5 Page L
10. o tu pz e ul a m o e lt Le o ec a 5820A Final Assembly Sheet 2 of 9 yu173f eps Figure 6 1 Final Assembly cont 6 6 Replaceable Parts List of Replacement Parts 6 Table 6 3 Rear Panel Module List of Replaceable Parts Reference Description Qty Fluke Stock Number Designator A65MP4 HANDLE INSTRUMENT GREY 7 2 886333 A65MP5 A65MP8 AIR FILTER 1 945287 A65W20 FAN ASSEMBLY 1 843029 6 7 5820A Service Manual PANEL MODULE RANSFORMER ASSEMBLY WHT BLK 2X 5 7 INCH LBS 2 REAR VIEW 5820A Final Assembly Sheet 3 of 9 yu174f eps Figure 6 1 Final Assembly cont 6 8 Replaceable Parts List of Replacement Parts 6 Table 6 4 Chassis Module List of Replaceable Parts Reference Description Qty Fluke Stock Number Designator A3AS3 PCA MOTHER GHZ A03 1 662221 A11A101 PCA MANUAL A2 A6 A9 1 617198 A11A101 ENCODER 55204 7602 1 627232 A11A101 IN GUARD 5520A 7606 1 626900 A11A101 OUT GUARD 55204 7609 1 626934 A55A55 SIGNAL GHZ A55 1 662301 A55A55 SIGNAL MHZ A55 1 661519 A56MP9 AUX CABLE SMA RT RT 1 647104 A57W6 CABLE TRIGGER SINGLE 1 661485 A64H13 28 SCREW FHU P LOCK MAG SS 6 32 250 20 320093 A64H78 H81 A64H29 CLAMP CABLE 50
11. 0 4 V 0 8 V 8 3 mV 16 3 mV 1 2V 1 3V 24 3 mV 26 3 V 3 4 V 5 5 V 68 3 mV 110 3 mV 3 43 MHz Leveled Sine Wave Flatness Verification Leveled Sine Wave flatness verification is divided into two frequency bands 50 kHz to 10 MHz low frequency and gt 10 MHz to 600 MHz high frequency The equipment setups are different for each band Leveled Sine Wave flatness is measured relative to 50 kHz This is determined directly in the low frequency band The high frequency band requires a transfer measurement be made at 10 MHz to calculate a flatness relative to 50 kHz 3 44 Equipment Setup for Low Frequency Flatness All low frequency flatness procedures use the following equipment e 5790A 03 AC Measurement Standard with Wideband option e BNC f to Type N m adapter e Nto BNC cable supplied with the Scope Calibrator 3 35 5820A Service Manual 3 36 3 45 3 46 Connect the Calibrator Mainframe CHAN 1 connector to the 5790A WIDEBAND input with the BNC f to Type N m adapter Set the 5790A to AUTORANGE digital filter mode to FAST restart fine and Hi Res on Equipment Setup for High Frequency Flatness All high frequency flatness procedures use the following equipment e Hewlett Packard 437B Power Meter e Hewlett Packard 8482A and 8481D Power Sensors e BNC f to Type N f adapter e Nto BNC cable supplied with the Calibrator Mainframe Note When high frequencies at voltages below
12. Guard Processor Board ji A2 gt Front Panel Processor Board AQ ge c o 5 Direct Digital Synthesis oO AG e 6 z Wave Gen Oo 2 Function T D Chan Out Optional Du 2 NC 5 Channel utpu 3 NC S Board vp Trigger Switch Sense Bd T NC rigger A55 Matrix Aux in Relay Control Single Trigger Channel lt gt Power Board A80 Protection Isolation gt Relays Current Board Dum A81 Outlet yu068f eps Figure 2 1 Signal Diagram of Chassis Theory of Operation Introduction 2 Clock From DDS A6 Ext Ref Clock Main Scope Board A55 Control 5820 Scope Module Voltage Bd A51 Pulse Bd A52 Trigger Out Attenuator Bd A90 Lr Signal Out Figure 2 2 Block Diagram of Scope Module yu070f eps 2 5 5820A Service Manual 2 6 A6 DDS External Clock In LF PWB i 500 Time Mark I LF Mux oxo 50 ms to 10 ns gt o Trigger 1 10 100 1000 Leveled Sine Wave and Time Mark II 10 ns to 2 ns i Unleveled NUX i Leveled s Oo o QC PrOpp Detect l S Pwr Amp HF Mux Leveling Loop i i O yO Edge Level 10 MHz Clock Oscilloscope Calibrat
13. 300 MHz 4 00 350 MHz 5 50 400 MHz 5 50 450 MHz 5 50 500 MHz 5 50 550 MHz 6 00 600 MHz 6 00 0 0075 50 MHz 2 83 100 MHz 2 83 150 MHz 3 33 200 MHz 3 33 250 MHz 3 33 300 MHz 3 33 350 MHz 4 83 400 MHz 4 83 450 MHz 4 83 500 MHz 4 83 550 MHz 45 33 600 MHz 45 33 Complete Columns A E as follows A B C Enter the 437B present frequency Reading Enter the 437B 50 kHz Reading W W Apply power sensor correction factor for present frequency W CF Column A entry Apply power sensor correction factor for 50 kHz W CF Column B entry Compute and enter Error relative to 50 kHz plus floor 100 sqrt Column B Column D entry 1 100 100uV nominal voltage Calibration and Verification Verification 3 Table 3 21 High Frequency Flatness Verification cont Amplitude Calibrator Calibrator Mainframe V Mainframe A B D E Flatness Spec 96 Freq 50 kHz MHz 0 0099 EN 2 51 0 01 2 50 Complete Columns A E as follows A Enter the 437B present frequency Reading W B Enter the 437B 50 kHz Reading W C S power sensor correction factor for present frequency W CF Column A D Apply power sensor correction factor for 50 kHz W CF Column B entry E Compute and enter Error relati
14. 4 Compare result to the tolerance column Verification at 50 Q For the 50 Q verification connect the CHAN 1 connector to the HP 3458A input using the cable and the 50 Q termination connected to the N to BNC to Banana Plug adapter Make sure the Calibrator Mainframe impedance is set to 50 Q The blue softkey under Output toggles the impedance between 50 Q and 1 MQ 1 Set the HP 3458A to DCV Auto Range NPLC 10 FIXEDZ on 2 Program the Calibrator Mainframe to output the voltage listed in Table 3 6 Press on the Calibrator Mainframe to activate the output 3 Allow the HP 3458A reading to stabilize then record the HP 3458A reading for each voltage in Table 3 6 4 Multiply the readings by 0 5 50 Rload Rload where Rload the actual feedthrough termination resistance to correct for the resistance error Calibration and Verification Verification 3 Table 3 5 DC Voltage Verification Into 1 MQ Impedance Unless Noted Nominal Value Measured Value Deviation V dc V dc V dc 1 Year Spec 0 25 uV 0 00125 25 3 uV 0 00125 25 3 uV 0 00249 25 6 uV 0 00249 25 6 uV 0 0025 25 6 uV 0 0025 25 6 uV 0 00625 26 5 uV 0 00625 26 5 uV 0 0099 27 5 uV 0 0099 27 5 uV 0 01 27 5 uV 0 01 27 5 uV 0 0175 29 4 uV 0 0175 29 4 uV 0 0249 31 2 uV 0 0249 31 2 uV 0 025 31 2 uV 0 025
15. 0 01654 3 31 AC Voltage Frequency Verification This procedure uses the following equipment PM 6680 Frequency Counter with an ovenized timebase Option PM 9690 or PM 9691 N to BNC cable supplied with the Scope Calibrator Refer to Figure 3 5 for the proper equipment connections 3 25 5820A Service Manual 5820A Cable At 50 MHZ caT SOURCE MEASURE CHAN 1 K PM 6680A CHAN 3 KX CHAN IM 2 9 E AUX EXT TRIG CHANS yu057f eps Figure 3 5 Setup for AC Voltage Frequency Verification Set the Calibrator Mainframe to the Volt menu Press on the Calibrator Mainframe to activate the output Then follow these steps to verify ac voltage frequency 1 Set the PM 6680 s FUNCTION to measure frequency on channel A with auto trigger measurement time set to 1 second or longer 1MQ impedance and filter off 2 Using the N to BNC cable connect the CHAN 1 connector on the Calibrator Mainframe to PM 6680 channel A 3 Program the Calibrator Mainframe to output 2 1 V at each frequency listed in Table 3 0 4 Allow the PM 6680 reading to stabilize then record the PM 6680 reading for each frequency listed in Table 3 9 Compare to the tolerance column of Table 3 9 Table 3 9 AC Voltage Frequency Verification Calibrator Mainframe Frequency PM 6680 Reading Output 2 1 V p p Frequency Tolerance 3 32 DC Measurement Verification This procedure uses the followi
16. Function pulse skew 10 0E 09 1 0E 09 pulse skew 5 00E 09 1 0E 09 pulse skew 15 0E 09 1 0E 09 pulse skew 30 0E 09 1 0E 09 3 55 5820A Service Manual 3 56 3 57 Pulse Period Verification This procedure uses the following equipment e PM 6680 Frequency Counter with an ovenized timebase Option PM 9690 or PM 9691 e Nto BNC cable supplied with the Scope Calibrator Set the Calibrator Mainframe to the Pulse menu Press on the Calibrator Mainframe to activate the output Then follow these steps to verify the Pulse period 1 Set the PM 6680 s FUNCTION to measure period on channel A with auto trigger DC couple 50 Q impedance and filter off 2 Using the N to BNC cable connect the CHAN 1 connector on the Calibrator Mainframe to PM 6680 channel A 3 Program the Calibrator Mainframe to output the pulse width and period at 1 5 V as listed in Table 3 28 4 Allow the PM 6680 reading to stabilize then record the PM 6680 reading for each period listed for the Calibrator Mainframe Table 3 28 Pulse Generator Verification Period Nominal Value Pulse Width Period Measured Deviation 1 Year Spec V p p s s Value s s s 1 5 5 0 x 10 200 x 10 66 x 10 1 5 500 x 10 0 01 3 3 x 10 1 5 500 x 10 0 02 6 6 x 10 3 58 MeasZ Resistance Verification The MeasZ resistance function is verified by measuring resistors of known values The measurement
17. 1 2 5820A Calibrator Dimensional Outline eere 2 1 Signal Diagram of Chassis essere nennen nennen nennen nenne 2 2 Block Diagram of Scope Module sese 2 3 Signal Diagram of Scope Module seen 3 1 Setup for Scope Calibrator Voltage Square Wave Measurements 3 2 Setup for Scope Calibrator Edge and Wave Gen Square Wave Measurements 3 3 Connecting the Calibrator Mainframe to the 5790A AC Measurement Standard 3 4 Setup for MeasZ Calibration eee eese eene 3 5 Setup for AC Voltage Frequency Verification sese 3 6 Setup for Edge Rise Time Verification ene 3 7 Setup for Leveled Sine Wave Harmonics Verification eese 3 8 Setup for Wave Generator Function sees 3 9 Setup for Overload Function Verification essere 3 10 Adjusting the Leveled Sine Wave Balance eere 3 11 Adjusting the Leveled Sine Wave Harmonics eee 3 12 Adjusting Short Term Edge eese nennen 4 l Accessing tbe FUSE eines rr nre eere bri a si cosa EEEE E AREA URAA 4 2 Accessing the Air Filter nues diee eee d a iaaa 5 1 GHz Block Diagram ree ipee ta beat Eni tuae Pe iiag de ede 5 2 Fast Edge Full Wave Form 4 4 eterne tee eiae eere ener PE De Leod E MM oic EXT 34 Bullet onthe Porch eii ho re RE etre enge cides 5 5 Critic
18. 1000 0 0000425 2 acvh amplitude 0 001 1000 0 0000055 2 acvh topline 0 001 1000 0 000105 aberration 2 acvh baseline 0 001 1000 0 000105 aberration 2 acvh offset 0 001 1000 0 0000425 2 acvh amplitude 0 001 1000 0 0000055 2 acvh topline 0 001 1000 0 000105 aberration 2 acvh baseline 0 001 1000 0 000105 aberration 2 acvh offset 130 1000 0 32504 2 acvh amplitude 130 1000 0 065005 2 acvh topline 130 1000 0 6501 aberration 2 acvh baseline 130 1000 0 6501 aberration 2 acvh offset 130 1000 0 32504 2 acvh amplitude 130 1000 0 065005 2 acvh topline 130 1000 0 6501 aberration 2 acvh baseline 130 1000 0 6501 aberration Table 5 21 Edge Amplitude Measured Spec Channel Function Measurement Amplitude Frequency Value Deviation Vp p 2 edge amplitude 2 5 toKHz 0 0502 2 edge topline aberr 2 5 10 kHz 0 0145 15 ns 5 26 Options Verification Tables for Channels 2 5 5 19 Channel 3 DMM Input Table 5 22 Levsine Amplitude Measured Spec Channel Function Measurement Amplitude Frequency Value Deviation Vp p 3 levsine amplitude 5 5 50000 0 1103 Table 5 23 DC Voltage 1 MQ Measured Channel Function Amplitude Value Deviation Spec V dcvh 0 0 000025 3 3 dcvh 0 001 0 00002525 3 dcvh 0 001 0 00002525 3 devh 130 0 032525 devh 130 0 032525 Table 5 24 AC Voltage 1
19. 5 0 5 0 1 250 000 000 1 325 000 000 5 0 5 0 1 375 000 000 1 425 000 000 5 0 5 0 1 475 000 000 5 0 Complete Columns A E as follows A B C Enter the 437B present frequency Reading W Enter the 437B 10 MHz Reading W Apply power sensor correction factor for present frequency W CF Column A entry Apply power sensor correction factor for 10 MHz W CF Column B entry Compute and enter error relative to 50 kHz plus floor 96 100 sqrt Column C Column D entry 1 100 100uV nominal voltage Options Verification Tables 5 Table 5 7 Leveled Sinewave Verification Flatness Channels 1 2 and 5 cont Calibrator e Mainframe Freq A B C D E Calibrator Mainframe MHz 10 MHz Flatness Spec 96 1 525 000 000 50 1 575 000 000 50 1 650 000 000 60 1 750 000 000 60 1 850 000 000 60 1 925 000 000 60 1 975 000 000 60 2 025 000 000 60 2 075 000 000 60 Dam ES 625 000 000 50 725 000 000 50 900 000 000 50 1 125 000 000 50 1 250 000 000 50 1 325 000 000 50 1 375 000 000 50 1 425 000 000 50 1 475 000 000 50 1 525 000 000 50 1 575 000 000 50 1 650 000 000 60 1 75
20. Adapter Pomona 3288 BNC f to Type N m N to BNC supplied with Scope Cable Calibrator l Wave Generator Verification AC Fluke 5790A Range 1 8 mV p p to 55 V p p Measurement Standard Frequency 10 Hz to 100 kHz Adapter Pomona 1269 BNC f to Double Banana Termination Feedthrough 50 Q 1 N to BNC supplied with Scope Cable Calibrator 3 5 5820A Service Manual 3 6 3 3 3 4 Calibration Setup The procedures in this manual have been developed to provide users the ability to calibrate the Scope Calibrator at their own site if they are required to do so It is strongly recommended that if possible you return your unit to Fluke for calibration and verification The hardware adjustments are intended to be one time adjustments performed in the factory however adjustment may be required after repair Hardware adjustments must be performed prior to calibration Calibration must be performed after any hardware adjustments See Hardware Adjustments in this chapter The AC Voltage function is dependent on the DC Voltage function Calibration of the AC Voltage function is required after the dc voltage is calibrated The Calibrator Mainframe must complete a warm up period prior to calibration to allow internal components to thermally stabilize The Calibrator Mainframe warm up period is at least twice the length of time the calibrator was powered off up to a maximum of 30 minutes The Scope Calibrator is enabled
21. M input impedance mode capacitance 2 8 input impedance mode resistance 2 8 MeasZ Capacitance load mode 2 9 Verification overload mode l tor 2 MeasZ function pulse generator 2 8 Calibration 3 16 trigger 2 9 3 wave generator mode wavgen 2 8 Meas Resists Time marker function Verification 3 55 specifications 1 10 5 5 Time Marker function O Theory of O peration 2 7 options Verification 5820 5 option 5 channel option 5 3 Trigger signal edge function specifications 1 13 Ghz option specifications 5 3 Trigger signal square wave voltage verification tables for specification 13 Oscilloscope input capacitance specifications 1 13 Trigger signal specifications Oscilloscope input resistance specifications Trigger specifications Overload function Tunnel diode drive capability 1 13 Verification Overload measurement specifications am Verification P Scope Calibrator 3 19 Pulse generator specifications 1 12 AC Voltage frequency 3 25 Pulse period verification 3 55 DC Voltage 3 9 8 11 8 20 8 26 8 27 Pulse Width function Edge Duty Cycle Calibration 3 15 Edge Frequenc 13 30 equipment setup 3 16 Edge rise time Verification Leveled Sine Wave Amplitude 3 34 equipment setup 3 53 Leveled Sine Wave Frequency 5 9 Pulse width verification 3 53 Leveled Sine Wave Harmonics 3 475 10 MeasZ Capacitance 3 56 R
22. MeasZ Resistance oad function 3 57 Replacing the line fuse 4 3 dial MM T EH Pulse width 3 53 S Time Marker Scope Calibrator Wave Generator Verification Volt function specifications 1 7 SCOPE CALIBRATOR Theory of Operation W Service information 4 6 Wave generator Specifications 1 5 specifications Specifications general 1 6 Wave Generator function Verification T theory of operation
23. Set HP 8590A start frequency to the Calibrator Mainframe output frequency Set HP 8590A stop frequency to 10 times the Calibrator Mainframe output frequency Set the HP 8590A reference level at 19 dBm Record the harmonic level reading for each frequency and harmonic listed in Table 3 22 For harmonics 3 4 and 5 record the highest harmonic level of the three measured Harmonics should be below the levels listed in the tolerance column of Table 3 22 3 47 5820A Service Manual Table 3 22 Leveled Sine Wave Harmonics Verification Calibrator Mainframe Output Frequency 5 5 V p p Harmonic HP 8590A Reading dB Tolerance 50 kHz 2 33 dB 50 kHz 3 4 5 38 dB 100 kHz 2 33 dB 100 kHz 3 4 5 38 dB 200 kHz 2 33 dB 200 kHz 3 4 5 38 dB 400 kHz 2 33 dB 400 kHz 45 38 dB 800 kHz 2 33 dB 800 kHz 3 4 5 38 dB 1 MHz 2 33 dB 1 MHz 3 4 5 38 dB 2 MHZ 2 33 dB 2 MHz 3 4 5 38 dB 4 MHz 2 33 dB 4 MHz 3 4 5 38 dB 8 MHz 2 33 dB 8 MHz 3 4 5 38 dB 10 MHz 2 33 dB 10 MHz 3 4 5 38 dB 20 MHz 2 33 dB 20 MHz 3 4 5 38 dB 40 MHz 2 33 dB 40 MHz 3 4 5 38 dB 80 MHz 2 33 dB 80 MHz 3 4 5 38 dB 100 MHz 2 33 dB 100 MHz 3 4 5 38 dB 200 MHz 2 33 dB 200 MHz 3 4 5 38 dB 400 MHz 2 33 dB 400 MHz 45 38 dB 600 MHz 2 33 dB 600 MHz 3 45 38 dB 3 49 Time Marker Verification This procedure uses the following equipment
24. Table 6 1 5820A Manuals Description Qty Fluke Stock Number MANUAL ADDENDUM SET ASIA 5820A OPERATOR 1 802238 MANUAL ADDENDUM SET INTL 5820A OPERATOR 1 802170 MANUAL ENG 5820A OPERATOR 1 802154 Table 6 2 Front Panel Module List of User Replaceable Parts Reference Description Qty Fluke Stock Number Designator A1A1 PWB KEYBOARD 1 760868 A63H19 27 SCREW WH P THD FORM STL 5 20 312 9 494641 A63H29 CLAMP CABLE 50 ID ADHESIVE MOUNT 1 688629 A63MP2 ASSEMBLY FRONT PANEL 1 673087 A63MP3 HANDLE INSTRUMENT GREY 7 2 886333 A63MP4 A63MP7 FRONT PANEL GHZ 1 673084 A63MP8 DECAL OUTPUT BLOCK 1 673191 A63MP9 LENS BEZEL 1 945246 A63MP12 KEYPAD ELASTOMERIC 1 1586646 A63MP13 LCD MODULE 16X2 CHAR TRANSMISSIVE 1 929179 A63MP14 LCD MODULE 40X2 CHAR TRANSMISSIVE 1 929182 A63MP22 KNOB ENCODER GREY 1 868794 A99H4 SCREW SET SCKT SS LOCK 8 32 187 2 801446 A99H5 A99MP6 CABLE CURRENT LOOP 1 673092 A99A99 PCA LOOP GHZ 1 661667 A99MP3 RECEPTABLE LOOP 2 662338 A99MP4 6 4 Replaceable Parts 6 List of Replacement Parts TO BE TORQUED 3 5 INCH LBS TO BE TORQUED 5 7 INCH LBS 2X FRONT PANEL MODULE FRONT VIEW 5820A Final Assembly Sheet 1 of 9 yu172f eps Figure 6 1 Final Assembly 6 5 5820A Service Manual FRONT PANEL MODULE REAR VIEW
25. eessssssssseeeeeeeeeeeneerennee 3 51 Verification at 1 MO eren 3 52 Verification at 50 Q iieeesesesssssssssssssseseseeeerenrenrenr nnns 3 53 Pulse Width Verification sess 3 54 Pulse Skew Calibration and Verification esses 3 55 Cal DTA ON e Q 3 56 VST CALI OM e E ETE 3 57 Pulse Period Verification essere 3 58 MeasZ Resistance Verification ccceeccesssecceeneeceeeeceeneceeneeeeeaees 3 50 MeasZ Capacitance Verification essen 3 60 Overload Function Verification essere 3 61 Hardware Adjustments sees nennen enn 3 62 Equipment Required eite trate eerte nto eta enden 3 63 Adjusting the Leveled Sine Wave Function suse 3 64 Equipment Setpro ctorri ri tinet eene ee egent eee tiende tad 3 65 Adjusting the Leveled Sine Wave VCO Balance 3 66 Adjusting the Leveled Sine Wave Harmonics 3 67 Adjusting the Aberrations for the Edge Function 3 68 Equipment Setup der taret era o hase Det eee sei beater sented 3 69 Adjusting the Edge Aberrations esee Malntenall88 nice ipod deordban es ulna eai DO EL li E eR OD ROG EDU A 4 1 Ihipniiter mE 4 2 Replacing the Line Fuse eeeeeeeeeeeeenenen nennen nennen 4 3 Cleaning the Air Filter aie eter Ce pee eL dice a 4 4 General Cl
26. 000 33 38 2nd harmonic 3rd harmonic 3 5 3 5 1 650 000 000 1 650 000 000 33 38 2nd harmonic 3rd harmonic 3 5 3 5 1 750 000 000 1 750 000 000 33 38 2nd harmonic 3rd harmonic 3 5 3 5 1 850 000 000 1 850 000 000 33 38 2nd harmonic 3rd harmonic 3 5 3 5 1 930 000 000 1 930 000 000 33 38 2nd harmonic 3rd harmonic 3 5 3 5 1 980 000 000 1 980 000 000 33 38 2nd harmonic 3rd harmonic 3 5 3 5 2 030 000 000 2 030 000 000 33 38 2nd harmonic 3rd harmonic 3 5 3 5 2 080 000 000 2 080 000 000 33 38 5 13 5820A Service Manual Table 5 7 GHz Leveled Sinewave Verification Flatness Channels 1 2 and 5 Calibrator Mainframe Freq A B C D E Calibrator Mainframe MHz 10 MHz Flatness Spec 96 3 5Vpp 625 000 000 t5 0 725 000 000 t5 0 900 000 000 t5 0 1 125 000 000 1 250 000 000 5 0 50 1 325 000 000 1 375 000 000 5 0 5 0 1 425 000 000 1 475 000 000 5 0 5 0 1 525 000 000 1 575 000 000 5 0 5 0 1 650 000 000 1 750 000 000 6 0 6 0 1 850 000 000 1 925 000 000 6 0 6 0 1 975 000 000 2 025 000 000 6 0 6 0 2 075 000 000 L 60 1 3 Vpp 625 000 000 5 0 725 000 000 5 0 900 000 000 1 125 000 000
27. 22 Press the GO ON blue softkey 23 Enter the actual 50 pF capacitance 24 The Calibrator Mainframe will prompt that the calibration is complete Press the STORE CONSTS blue softkey to store the new calibration constants 3 22 Leveled Sine Wave Flatness Calibration GHz Option Leveled Sine Wave Flatness Calibration is only applicable if the 5820A has the GHz Option installed This calibration procedure uses the same equipment as in the 5820A Leveled Sine Wave Flatness High Frequency calibration procedure See the GHz section for details 3 23 5820A 5 Option The 5820A 5 Option allows you to calibrate up to five oscilloscope channels simultaneously without changing cables This allows you to perform fast automated calibrations with documented procedures and results while freeing the operator to complete other work You can find this option discussed throughout the manual where appropriate Note If the 5820A is equipped with the 5 channel option the Mainframe will indicate when to move to the next channel 3 24 Verification All of the Oscilloscope Calibration functions should be verified at least once per year or each time the Scope Calibrator is calibrated The verification procedures in this section provide traceable results however the factory uses different procedures of higher precision than those described here The procedures in this manual have been developed to provide users the ability to verify the Scope Calibrato
28. 31 2 uV 0 0675 41 8 uV 0 0675 41 8 uV 0 1099 52 5 uV 0 1099 52 5 uV 0 11 52 5 uV 0 11 52 5 uV 0 305 101 50 uV 0 305 101 50 uV 0 499 150 uV 0 499 150 uV 3 21 5820A Service Manual 3 22 Table 3 5 DC Voltage Verification cont Nominal Value Measured Value Deviation V dc V dc V dc 1 Year Spec 05 150 pV 0 5 150 uV 1835 362 5 uV 1 35 362 5 uV 219 572 uV 2 19 572 uV 22 572 uV 2 2 572 uV 6 6 1 67 mV 66 1 67 mV 10 99 2 77 mV 10 99 2 77 mV 11 2 77 mV 11 2 77 mV 70 5 17 65 mV 70 5 17 65 mV 130 32 5 mV 130 32 5 mV 6 599 50 Q 16 5 mV Table 3 6 DC Voltage Verification at 50 Q Calibrator Mainframe Output HP 3458A Rdg V dc Reading x Correction Tolerance V dc 0 mV 0 00004 V 2 49 mV 4 623E 05 V 2 49 mV 4 623E 05 V 9 90 mV 6 475E 05 V 9 90 mV 6 475E 05 V 24 9 mV 0 0001023 V 24 9 mV 0 0001023 V 109 9 mV 0 0003148 V 109 9 mV 0 0003148 V 499 mV 0 0012875 V 499 mV 0 0012875 V 2 19 V 0 005515 V 2 19V 0 005515 V 6 599 V 0 0165375 V 6 599 V 0 0165375 V Calibration and Verification Verification 3 3 28 3 29 AC Voltage Amplitude Verification This procedure uses the follow
29. 5 5 V 600 MHz 2 Set the Spectrum Analyzer to the parameters listed below Spectrum Analyzer Setup Start Frequency 10 MHz Stop Frequency 800 MHz Resolution Bandwidth 30 kHz Video Bandwidth 3 kHz Reference Level 20 dBm The Spectrum Analyzer will display a spur at 153 MHz Refer to Figure 3 10 to identify the spur 3 You need to adjust the wave until the spur is at a minimum To do this slowly rotate R1 shown in Figure 3 10 counterclockwise until the spur is at a minimum As you adjust it the spur will move down the waveform towards the right As soon as the spur is minimized stop rotating R1 If you rotate it too far the spur will reappear Once you have turned R1 to the point at which the spur is at a minimum the signal is balanced between the VCOs and you have completed the adjustment 153 MHz Spur N om052f eps Figure 3 10 Adjusting the Leveled Sine Wave Balance 3 66 Adjusting the Leveled Sine Wave Harmonics The following procedure adjusts the harmonics for the leveled sine wave function Note This procedure should only be used for adjusting the leveled sine wave harmonics Do not use this procedure as a verification test The specifications in this procedure are not valid for verification 1 Set the Spectrum Analyzer to the parameters listed below Spectrum Analyzer Setup Start Frequency 50 MHz Stop Frequency 500 MHz 3 60 Calibration and Verification 3 Hardware Adjustme
30. 600 mV 1V 2 5V Frequency Range 1 1 kHz to 10 MHz 0 33 ppm of setting Typical Jitter edge to trigger lt 3 ps p p within 2 ns from 50 of rising edge Leading Edge Aberrations 2 lt 3 96 of output 2 mV 2105 ns lt 2 of output 2 mV 5 to 30 ns lt 1 96 of output 2 mV after 30 ns lt 0 5 of output 2 mV Typical Duty Cycle 45 to 55 1 Frequency range above 2 MHz has rise time specification 350 ps typical 2 The leading edge aberrations below 250 mV are typical All readings are referenced to a Tek11801 with an SD26 module or a Tek820 oscilloscope with a 8 GHz bandwidth option 5820A Service Manual 1 11 Leveled Sine Wave Specifications Note The GHz Option offers an extended 600 MHz to 2 1 GHz Leveled Sine Wave range If the GHz Option is installed see the Leveled Sine Wave Specifications gt 600 MHz table in Chapter 5 Table 1 5 Leveled Sine Wave Specifications lt 600 MHz Leveled Sine Wave Frequency Range Characteristics 50 kHz 50 kHz to 100 MHz to 300 MHz to 500 MHz to into 50 Q reference 100 MHz 300 MHz 500 MHz 600 MHz Amplitude Characteristics Range p p 5 mV to 5 0 V Resolution lt 100 mV 3 digits gt 100 mV 4 digits Adjustment continuously adjustable Range 1 Year Absolute 2 of 3 5 of 4 of 5 5 of 6 of Uncertainty output output output output output
31. A To ensure safety use exact replacement fuse only 4 3 5820A Service Manual aag067f eps Figure 4 1 Accessing the Fuse 4 3 Cleaning the Air Filter A A Warning To avoid risk of injury never operate or power the 5820A calibrator without the fan filter in place A Caution To avoid possible damage caused by overheating keep the area around the fan unrestricted If the air intake becomes restricted the intake air will be too warm or the filter will become clogged The air filter must be removed and cleaned every 30 days or more frequently if the calibrator is operated in a dusty environment The air filter is accessible from the rear panel of the calibrator 4 4 4 os o qu C Sac Eo os o S c in EU O aag062f eps Figure 4 2 Accessing the Air Filter 4 5 Grasp the top and bottom of the air filter frame Pull the filter frame straight out from the calibrator b Squeeze the edges of the frame towards each other to disengage the filter tabs from the slots in the calibrator Disconnect line power C To clean the air filter refer to Figure 4 2 and proceed as follows a 1 2 Remove the filter element 3 Clean the filter element P 4 RORLOPLERL DT IEDLPE OPIER OLT LELEL ULT LPE CUM LF ULTOPT OPIATA LU BRUT Dust BIOL rara pasear tear BIE UD DAD DID DD TID END FIND ADIT BUT SUEUR BUTT URRU RNR BUTTE 1 j EA Ea 4ND EIGI DIN EINI ND EE UDRP I
32. As an example the 5820A 4055 Main Scope Board is referred to as the A55 Voltage Mode All ac and dc voltage function signals are generated from the A51 Voltage Video Board a daughter card to the A55 Main Scope Board A dc reference voltage is supplied to A51 from the A6 Direct Digital Synthesis Board this reference is used for all dc and ac amplitudes All frequency signals clock are generated on the A55 The output of the A51 is passed to the A55 board which then passes through the A90 Edge Attenuator Board The signal is then passed to the front panel high frequency switch The dc reference signal is used to generate both positive and negative dc and ac signals that are amplified or attenuated to provide the complete range of output voltage signals Output trigger capability is available with the ac voltage signal Edge Mode The edge clock originates on A55 and is used on A90 to generate the 300 ps edge signal The edge signal is passed through the attenuator section of A90 and then like all of the signals is passed to the front panel high frequency switch Output trigger capability is available with this signal Leveled Sine Wave Mode Leveled sine wave signals from 50 kHz to 600 MHz are produced on A55 The leveled sine wave signal is passed from A55 to the A90 The A90 provides range attenuation and also contains a power detector that maintains the amplitude flatness across the frequency range The signal is then passed
33. CHAN 1 HAN 3 130v PK Whee 20V PK P CHAN 4 CHAN 4 lar EXT TRIG CHAN S BNC F to Type N M Adapter yu081f eps Figure 5 7 Setup for Leveled Sine Wave Harmonics Verification Set the Calibrator Mainframe to the Levsine menu Follow these steps to verify the leveled sine wave harmonics 1 Using the N to BNC cable and BNC f to Type N m adapter connect the CHAN 1 connector on the Calibrator Mainframe to the HP 8592L Options 5 Verification Tables 2 Program the Calibrator Mainframe to 3 5 V p p at each frequency listed in Table 5 6 Press on the Calibrator Mainframe to activate the output 3 Set HP 8592L start frequency to the Calibrator Mainframe output frequency Set HP 8592L stop frequency to 10 times the Calibrator Mainframe output frequency Set the HP 8592L reference level at 19 dBm 4 Record the harmonic level reading for each frequency and harmonic listed in Table 5 6 For harmonics 3 4 and 5 record the highest harmonic level of the three measured Harmonics should be below the levels listed in the Deviation column of Table 5 6 5 12 Verification Tables Table 5 4 through Table 5 7 are to be used to verify channels 2 5 The verification test points are provided here as a guide when verification to one year specifications is desired For more information on verification see Chapter 3 Table 5 4 GHz Leveled Sine Wave Frequency Verification Channels 1 2 and 5
34. Calibrator Mainframe V Mainframe B D E Flatness Spec 96 Freq 50 kHz MHz y pn 150 5 5 1 50 Complete Columns A E as follows A Enter the 437B present frequency Reading W B Enter the 437B 50 kHz Reading W C S power sensor correction factor for present frequency W CF Column A D Apply power sensor correction factor for 50 kHz W CF Column B entry E Compute and enter Error relative to 50 kHz plus floor 96 100 sqrt Column B Column D entry 1 100 100uV nominal voltage Calibration and Verification 3 Verification 3 48 600 MHz Leveled Sine Harmonic Verification This procedure uses the following equipment Hewlett Packard 8590A or better Spectrum Analyzer BNC f to Type N m adapter N to BNC cable supplied with the Scope Calibrator See Figure 3 7 for the proper equipment connections HP 8590A or equivalant pgs SOURCE MEASURE TTRIG CHAN 1 T HAN 3 n CHAN 4 BNC F to Type N M Adapter yu059f eps Figure 3 7 Setup for Leveled Sine Wave Harmonics Verification Set the Calibrator Mainframe to the Levsine menu Follow these steps to verify the leveled sine wave harmonics 1 Using the N to BNC cable and BNC f to Type N m adapter connect the CHAN 1 connector on the Calibrator Mainframe to the HP 8590A Program the Calibrator Mainframe to 5 5 V p p at each frequency listed in Table 3 22 Press on the Calibrator Mainframe to activate the output
35. Current Verification Calibrator Mainframe output 0 100 mA 0 100 mA HP 3458A Reading Tolerance mA dc mA dc 0 000750 0 000750 0 550 mA 0 550 mA 0 001875 0 001875 1 099 mA 1 099 mA 0 003248 0 003248 1 100 mA 1 100 mA 0 003250 0 003250 5 50 mA 5 50 mA 0 014250 0 014250 10 99 mA 10 99 mA 0 027975 0 027975 11 00 mA 11 00 mA 0 028000 0 028000 50 00 mA 50 00 mA 0 125500 0 125500 100 0 mA iniit 100 0 mA 0 250500 0 250500 3 35 AC Current Verification The setup to measure the topline and baseline of ac current uses the HP 3458A triggered by a change in input level see Table 3 12 for HP3458A settings The trigger level is set to 1 of the DCV range wit h ac coupling of the trigger signal Connect the precision resistor assemblies as indicated to the banana jacks on the front panel Connect the DMM to the precision resistor Set the HP 3458A to DCV Auto Range NPLC 10 FIXEDZ on Use the same delays and settings used in the section AC Current Calibration Record the HP3458A readings in Table 3 13 Table 3 12 AC Measurement HP3458A Settings HP 3458A Settings Input Frequency NPLC DELAY topline DELAY baseline 45 Hz 01 0002 s 012 500 Hz 01 0002 s 0012 s 1 kHz 01 0002 s 0005 s Calibration and Verification 3
36. V p p Tolerance V p p 0 000154 V 0 000457 V 0 00075 V 0 00076 V 0 00178 V 0 002797 V 0 0028 V 0 00475 V 0 00667 V 0 0067 V 0 0169 V 0 02707 V 0 0271 V 0 1126 V 0 1978 V 0 1981 V 0 9241 V 1 6501 V 0 000154 V 0 000757 V 0 002797 V 0 00667 V 0 02707 V 0 1978 V 1 6501 V 0 000154 V 0 000757 V 0 002797 V 0 00667 V 0 02707 V 0 1978 V 1 6501 V 5820A Service Manual 3 52 3 52 Verification at 50 Q Set the Calibrator Mainframe impedance to 50 The blue softkey under SCOPE Z toggles the impedance between 50 Q and 1 MQ 1 Connect the N to BNC cable to the Calibrator Mainframe s CHAN 1 connector Connect the other end of the N to BNC cable to the 50 Q feedthrough termination then to the 5790A INPUT 2 using the BNC f to Double Banana adapter 2 Set the 5790A to AUTORANGE digital filter mode to FAST restart fine and Hi Res on 3 Program the Calibrator Mainframe to output the wave type and voltage listed in Table 3 25 4 Allow the 5790A reading to stabilize then record the 5790A rms reading for each wave type and voltage in Table 3 25 5 Multiply the rms reading by the conversion factor listed to convert it to the peak to peak value 6 Multiply the peak to peak value by 0 5 50 Rload Rload where Rload the actual feedthrough termination resistance to correct for the resistance error Compare result to the tolerance column Table 3 25
37. Verification essent nete 5820A Service Manual 3 I7 Edge Aberrations coicciur ieai iiaii 3 18 Tunnel Diode Pulser Verification eeessses sese 3 19 Leveled Sine Wave Amplitude Verification 3 20 Low Frequency Flatness Verification at 5 5 V sssssssseseeeeree 3 21 High Frequency Flatness Verification eese ener rennen 3 22 Leveled Sine Wave Harmonics Verification esesseseseeeee eene 3 23 Marker Generator Verification iieii cstren E EATE 3 24 Wave Generator Verification at 1 MQ sssssssssseeeeeeeeeren nene 3 25 Wave Generator Verification at 50 Q ssesesssssssseseseeeeenenneen nennen 3 25 Pulse Generator Verification Pulse Width 3 23 P lSe SKOW cid eco ot tease etse Mar te todat e E OE 3 25 Pulse Generator Verification Period sess esee ener 3 26 MeasZ Resistance Verification ccccsccccsssscccecssssececesssseeeceseseeecsssseeeessssaeeeeees 3 27 MeasZ Capacitance Verification essere eren rennen rennen 4 1 Replacement Fuses 2 5 dee Gh Ene eere Pete a ee Pe ER R p Pacta Ra Dd ce 5 1 Fast Edge Specifications seeeeeeeeeeeeeeeenee eene nnne nne 5 2 Leveled Sine Wave Specifications gt 600 MHZ esee 5 3 Time Marker Specifications 0 0 eee eseessecssecsseceeceecsecsseesseeeseeesneesneeeaeeeaeeeaaeenaes 5 4 Leveled Sine Wave Frequency Verifi
38. Wave Generator Verification at 50 Q Calibrator Calibrator Mainframe Mainframe 5790A 5790A Rdg x Wave Output Reading Conversion Conversion V p p Value Tolerance Type 10 kHz V rms Factor Factor V p p _ x correction V p square 1 8 mV 2 0000 0 000154 V square 6 4 mV 2 0000 0 000292 V square 10 9 mV 2 0000 0 000427 V square 11 0 mV 2 0000 0 00043 V square 28 0 mV 2 0000 0 00094 V square 44 9 mV 2 0000 0 001447 V square 45 mV 2 0000 0 00145 V square 78 mV 2 0000 0 00244 V square 109 mV 2 0000 0 00337 V square 110 mV 2 0000 0 0034 V square 280 mV 2 0000 0 0085 V square 449 mV 2 0000 0 01357 V square 450 mV 2 0000 0 0136 V square 780 mV 2 0000 0 0235 V square 1 09 V 2 0000 0 0328 V square 1 10 V 2 0000 0 0331 V square 1 80 V 2 0000 0 0541 V Calibration and Verification Verification 3 Table 3 25 Wave Generator Verification at 50 cont Calibrator 5790A Rdg x Calibrator Mainframe 5790A Conversion V p p Value Mainframe Output Reading Conversion Factor x Tolerance Wave Type 10 kHz V rms Factor V p p Correction V p p square 2 50V 2 0000 0 0751 V sine 1 8 mV 2 8284 0 000154 V sine 10 9 mV 2 8284 0 000427 V sine 44 9 mV 2 8284 0 001447 V sine 109 mV 2 8284 0 00337 V sine 449 mV 2 8284 0 01357 V sine 1 09 V 2 8284 0 0328 V sine 2 50V 2 8284 0 0751 V triangle 1 8 mV 3 4641 0 000154 V triangle 10 9 mV 3 4641 0 000427 V triangle
39. a digitizer to measure the peak to peak value of the signal It is set to DCV using various analog to digital integration times and triggering commands to measure the topline and baseline of the square wave signal Setup for Scope Calibrator Voltage Square Wave Measurements By controlling the HP 3458A s integration and sample time it can be used to make accurate repeatable measurements of both the topline and baseline of the Voltage Square Wave up to 10 kHz To make these measurements the HP 3458A s External Trigger function is used in conjunction with the Scope Calibrator External Trigger Calibration and Verification 3 Calibration and Verification of Square Wave Voltage Functions output In general the HP 3458A is setup to make an analog to digital conversion after receiving the falling edge of an external trigger The conversion does not take place until a time determined by the 3458A DELAY command The actual integration time is set according to the frequency that the DMM is measuring Table 3 2 below summarizes the DMM settings required to make topline and baseline measurements Figure 3 1 shows the proper equipment connections Table 3 2 Voltage HP3458A Settings Voltage HP 3458A Settings Input Frequency NPLC DELAY topline DELAY baseline 100 Hz 1 007 s 012s 1 kHz 01 0007 s 0012 s 5kHz 002 00014 00024 10 kHz 001 00007 00012 For all measurements the HP 3458A is in DCV manual ranging
40. band for the first amplitude followed by the low frequency band then the high frequency band for the second amplitude and so on until the flatness calibration is complete Press the NEXT SECTION blue softkey until the display reads Set up to measure leveled sine flatness 3 18 Low Frequency Calibration Connect the Calibrator Mainframe CHAN 1 connector to the 5790A WIDEBAND input as described under Equipment Setup for Low Frequency Flatness Follow these steps to calibrate low frequency Leveled Sine Wave flatness for the amplitude being calibrated 1 Press the GO ON blue softkey 2 Establish the 50 kHz reference e Allow the 5790A rms reading to stabilize Calibration and Verification 3 Pulse Width Calibration e Press the 5790A Set Ref blue softkey Clear any previous reference by pressing the 5790A Clear Ref blue softkey prior to setting the new reference if required Press the GO ON blue softkey 4 Adjust the amplitude using the Calibrator Mainframe front panel knob until the 5790A reference deviation matches the 50 kHz reference within 1000 ppm 5 Repeat steps 1 to 4 until the Calibrator Mainframe display indicates that the reference frequency is now 10 MHz Continue with the high frequency calibration 3 19 High Frequency Calibration Connect the Calibrator Mainframe CHAN 1 connector to the power meter and power sensor as described under Equipment Setup for High Frequency Flatness Follow these
41. by pressing the Operate Standby key sv Much of the Scope Calibrator can be calibrated interactively from the front panel Enter 5820A Cal mode by pressing the front panel SETUP key CAL blue softkey and 5820A CAL blue softkey Entering the CAL mode prior to a 30 minute warmup period will cause a warning message to be displayed All equipment specified for Scope Calibrator calibration must be calibrated certified traceable if traceability is to be maintained and operating within their normal specified operating environment It is also important to ensure that the equipment has had sufficient time to warm up prior to its use Refer to the operating manuals for each piece of equipment for details Before you begin calibration you may wish to review all of the procedures in advance to ensure you have the resources to complete them The Calibrator Mainframe first prompts the user to calibrate the DC Voltage function If another function is to be calibrated alternately press the NEXT SECTION blue softkey until the desired function is reached Calibration and Verification of Square Wave Voltage Functions The Voltage Edge and Wave Generator functions have square wave voltages that need to be calibrated or verified The HP3458A digital multimeter can be programmed from either the front panel or over the remote interface to make these measurements Overview of HP3458A Operation The Hewlett Packard 3458A digital multimeter is setup as
42. conditions or practices that could result in damage to equipment SYMBOLS MARKED ON THE CALIBRATOR A WARNING Risk of electric shock Refer to the manual see the Index for references IE GROUND Ground terminal to chassis earth A Attention Refer to the manual see the Index for references This symbol indicates that information about usage of a feature is contained in the manual AC POWER SOURCE The Calibrator is intended to operate from an ac power source that will not apply more than 264V ac rms between the supply conductors or between either supply conductor and ground A protective ground connection by way of the grounding conductor in the power cord is required for safe operation USE THE PROPER FUSE To avoid fire hazard use only the specified replacement fuse e For 100 V or 120 V operation use a 5A 250V time delay fuse Fluke PN 109215 e For 220 V or 240 V operation use a 2 5A 250V time delay fuse Fluke PN 851931 GROUNDING THE CALIBRATOR The Calibrator uses controlled overvoltage techniques that require the Calibrator to be grounded whenever normal mode or common mode ac voltages or transient voltages may occur The enclosure must be grounded through the grounding conductor of the power cord or through the rear panel CHASSIS GROUND binding post USE THE PROPER POWER CORD Use only the power cord and connector appropriate for the voltage and plug configuration in your country Use only a power cord th
43. dB lt 1 211 5 Channel 600 MHz to 1 GHz lt 1 3 dB 1 411 5 Channel 1 GHz to 2 0 GHz lt 2 0 dB 1 711 5 Channel 2 GHz to 3 GHz lt 3 0 dB lt 2 01 1 26 Current Output Specifications Table 1 19 Current Output Specifications DC Squarewave Amplitude compliance voltage 2 V max 100 pA to 100 mA 100 pAp p to 100 mAp p Accuracy 0 25 0 5 pA 0 25 0 5 pA 1 Frequency Range N A 10 Hz to 100 KHz Accuracy 2 5 ppm 5 uHz Steps 1 2 5 or continuous 1 Amplitude uncertainty for frequency range 45 Hz to 1 kHz at lt 120 mV compliance voltage 5820A Service Manual 2 1 2 2 2 3 2 5 2 6 2 7 2 9 2 10 2 11 2 12 2 13 2 14 2 15 2 16 Chapter 2 Theory of Operation Hector Voltage Mode iic itede eee eere ee Pede aer ehe etd esce cos Edge Modereer ronan aiee E A Ea A E G a Leveled Sine Wave Mode eese Time Marker Mode sess enne Wave Generator Mode dieses e tece kein pedea Pulse Generator rit rene rtt pe perm etu er aereo esee Eee eso couse Input DC Voltage Measurement Mode Input Impedance Mode Resistance eene Input Impedance Mode Capacitance eese Current Module covestseessaceenctavsnccevescosgadecncsesetaccngeceensecanateenans Overload Mode 4 eR didi Er HER Eee RA IRE aes WDA ISP M EH High Frequen
44. form Manually lock the HP 3458A to the range that gives the most resolution for the topline measurements Use this same range for the corresponding baseline measurements at each step See Table 3 8 Enable the Calibrator Mainframe external trigger by toggling the blue softkey under TRIG to 1 Measure the topline first as indicated in Table 3 8 For each measurement take samples for at least two seconds using the HP 3458A MATH functions to determine the average or mean value Measure the baseline of each output after the corresponding topline measurement as indicated in Table 3 8 The peak to peak value is the difference between the topline and baseline measurements Compare the result to the tolerance column Calibration and Verification Verification 3 Table 3 8 AC Voltage Verification at 50 Q Calibrator Mainframe Output HP 3458A Topline Baseline Peak to Peak x Tolerance 1 kHz Range Reading Reading Peak to Peak Correction V 1 mV 100 mV dc 0 000043 1 mV 100 mV dc 0 000043 10 mV 100 mV dc 0 000065 10 mV 100 mV dc 0 000065 25 mV 100 mV dc 0 000103 25 mV 100 mV dc 0 000103 110 mV 100 mV de 0 000315 110 mV 100 mV ac 0 000315 500 mV 1 Vdc 0 00129 500 mV 1 Vdc 0 00129 2 2 V 10 V dc 0 00554 2 2 V 10 V dc 0 00554 6 6 V 10 V dc 0 01654 6 6 V 10 V dc
45. mV 5 10 GHz Leveled Sine Wave Frequency Verification This procedure uses the following equipment e PM 6680 Frequency Counter with a prescaler for the Channel C input Option PM 9621 PM 9624 or PM 9625 and ovenized timebase Option PM 9690 or PM 9691 5 9 5820A Service Manual e BNC f to Type N m adapter e Nto BNC cable supplied with the Scope Calibrator Set the Calibrator Mainframe to the Levsine menu Follow these steps to verify the leveled sine wave amplitude 1 Set the PM 6680 s FUNCTION to measure frequency with auto trigger measurement time set to 1 second or longer and 50 O impedance 2 Using the N to BNC cable connect the CHAN 1 connector on the Calibrator Mainframe to the PM 6680 at the channel indicated in Table 5 4 You will need the BNC N adapter for the connection to Channel C Set the filter on the PM 6680 as indicated in the table 4 Program the Calibrator Mainframe to output as listed in Table 5 4 Press on the Calibrator Mainframe to activate the output 5 Allow the PM 6680 reading to stabilize then record the PM 6680 reading for each frequency listed in Table 5 4 5 11 GHz Leveled Sine Wave Harmonics Verification This procedure uses the following equipment e Hewlett Packard 8592L Spectrum Analyzer e BNC f to Type N m adapter e Nto BNC cable supplied with the Scope Calibrator See Figure 5 7 for the proper connections HP 8592L must be used 600MHz CATE SOURCE MEASURE IG
46. mV to 2 75 V Attenuator Weinschel 9 10 SMA 10 dB SMA m f or Weinschel 18W 10 or equivalent Adapter BNC f to SMA m N to BNC Cable supplied with Scope Calibrator DC and AC Voltage Calibration and Verification DC Voltage Verification Digital HP 3458A Multimeter Adapter Pomona 1269 BNC f to Double Banana Plug Termination Feedthrough 50 Q 1 N to BNC Cable supplied with Scope Calibrator 1 Note that Fluke Met Cal certified procedures use the Tek 11801 scope 3 3 5820A Service Manual Table 3 1 Scope Calibrator Calibration and Verification Equipment cont Current Calibration AC DC Current Verification Minimum Use Specifications Instrument Model Digital HP 3458A Multimeter Voltage 1 mV to 2 V p p Uncertainty 0 06 Adapter Pomona 1269 BNC f to Double Banana Plug 1 Q Resistor User Supplied Measured to 0 05 125 mW including banana jack Assembly mounting 10 Q Resistor User Supplied Measured to 0 05 250 mW including banana jack Assembly mounting 100 Q Resistor User Supplied Measured to 0 05 125 mW including banana jack Assembly mounting 1000 Q User Supplied Measured to 0 05 125 mW including banana jack Resistor mounting Assembly N to BNC supplied with Scope Cable Calibrator Pulse Width Calibration and Verification High Frequency Digital Tektronix 11801 with Tektronix SD Storage Oscillosc
47. steps to calibrate high frequency Leveled Sine Wave flatness for the amplitude being calibrated 1 Press the GO ON blue softkey 2 Establish the 10 MHz reference e Press the power meter SHIFT key then FREQ key and use the arrow keys to enter the power sensor s 10 MHz Cal Factor Ensure that the factor is correct then press the power meter ENTER key e Allow the power meter reading to stabilize e Press the Power meter REL key Press the GO ON blue softkey 4 Press the power meter SHIFT key then FREQ key and use the arrow keys to enter the power sensor s Cal Factor for the frequency displayed on the Calibrator Mainframe Ensure that the factor is correct then press the power meter ENTER key 5 Adjustthe amplitude using the Calibrator Mainframe front panel knob until the power sensor reading matches the 10 MHz reference within 0 146 6 Repeat steps 1 to 5 until the Calibrator Mainframe display indicates that either the reference frequency is now 50 kHz or that the next steps calibrate pulse width Repeat the low frequency calibration procedure for the next amplitude unless the Calibrator Mainframe display indicates that the next steps calibrate pulse width Press the STORE CONSTS blue softkey to store the new calibration constants 3 20 Pulse Width Calibration This procedure uses the following equipment e High Frequency Digital Storage Oscilloscope Tektronix 11801 with Tektronix SD 22 26 sampling head e 3B attenuator
48. tcal 5 C 300 uV 300 uV 300 uV 300 uV 300 uV Flatness 1 not applicable t 1 5 96 of t 2 96 of 3 5 of t 4 of relative to output output output output 50 kHz 100 uV 100 uV 100 uV 100 uV Short Term lt 1 2 Amplitude Stability Frequency Characteristics Resolution 10 kHz 1 Year Absolute 0 33 ppm Uncertainty tcal 5 C Distortion Characteristics 3 2nd Harmonic lt 33 dBc 3rd and Higher lt 38 dBc Harmonics 1 As measured near Oscilloscope bandwidth frequency 2 Within one hour after reference amplitude setting provided temperature varies no more than 5 C 3 Harmonics above 500 MHz are typical Introduction and Specifications General Specifications 1 1 12 Time Marker Specifications Note If you ordered the GHz Option the following specification table is superseded by the table with the same heading in Chapter 5 Table 1 6 Time Marker Specifications 5sto 20 ms to 50 ns to 5ns to2 Time Marker into 50 Q 50 ms 100 ns 20 ns 10 ns ns Wave Shape spike or spike square spike or square or sine square or 2096 pulse square sine Typical Output Level gt 1Vp p i gt 1Vp p 1 gt 1Vp p 1 1Vp p 1 1 Vp p Typical Jitter p p 10 ppm 1 ppm 1 ppm 1 ppm 1 ppm Sequence 5 2 1 from 5 s to 2 ns e g 500 ms 200 ms 100 ms Adjustment Range At least 10 around each sequence value indicated above Amplitude Resolution 4 d
49. verification connect the Calibrator Mainframe s CHAN 1 connector to the HP 3458A input using the cable supplied with the Calibrator Mainframe the external 50 Q termination and the BNC f to double banana adapter The 50 Q termination is closest to the HP 3458A input 1 For measurements of a 1 kHz signal set the HP 3458A to DCV NPLC 01 LEVEL 1 TRIG LEVEL and the DELAY to 0002 for measuring the upper part of the wave form i e topline and the DELAY to 0007 for measuring the lower part of the wave form i e baseline For measurements of a 10 kHz signal set the HP 3458A to DCV NPLC 001 LEVEL 1 TRIG LEVEL and the DELAY to 00002 for measuring the topline and the DELAY to 00007 for measuring the baseline 2 Manually lock the HP 3458A to the range that gives the most resolution for the baseline measurements Use this same range for the corresponding baseline measurements at each step Note that in the EDGE function the topline is very near 0 V and the baseline is a negative voltage See Table 3 14 3 For each calibration step take samples for at least two seconds using the HP 3458A MATH functions to enter the average or mean value 4 The peak to peak value of the wave form is the difference between the topline and baseline measurements correcting for the load resistance error To make this correction multiply the readings by 0 5 50 Rload Rload where Rload actual feedthrough termination resistance Re
50. 0 64 2 025 000 000 61 2 075 000 000 64 0 070 Vpp 625 000 000 54 725 000 000 54 900 000 000 54 1 125 000 000 54 1 250 000 000 54 1 325 000 000 54 1 375 000 000 54 1 425 000 000 54 1 475 000 000 54 1 525 000 000 54 1 575 000 000 54 1 650 000 000 61 1 750 000 000 61 1 850 000 000 61 1 925 000 000 61 1 975 000 000 61 2 025 000 000 61 2 075 000 000 64 0 040 Vpp 625 000 000 5 25 725 000 000 5 25 900 000 000 5 25 1 125 000 000 5 25 5 18 Options Verification Tables 5 Table 5 7 Leveled Sinewave Verification Flatness Channels 1 2 and 5 cont Calibrator x Mainframe Freq A B C D E Calibrator Mainframe MHz 10 MHz Flatness Spec 96 1 250 000 000 5 25 1 325 000 000 5 25 1 375 000 000 5 25 1 425 000 000 5 25 1 475 000 000 5 25 1 525 000 000 5 25 1 575 000 000 5 25 1 650 000 000 6 25 1 750 000 000 6 25 1 850 000 000 6 25 1 925 000 000 6 25 1 975 000 000 6 25 2 025 000 000 6 25 2 075 000 000 6 25 0 025 Vpp 625 000 000 54 725 000 000 54 900 000 000 54 1 125 000 000 54 1 250 000 00
51. 0 54 1 325 000 000 54 1 375 000 000 54 1 425 000 000 54 1 475 000 000 54 1 525 000 000 54 1 575 000 000 54 1 650 000 000 64 1 750 000 000 64 1 850 000 000 6 4 1 925 000 000 64 1 975 000 000 6 4 2 025 000 000 64 5 19 5820A Service Manual 5 20 Table 5 7 Leveled Sinewave Verification Flatness Channels 1 2 and 5 cont Calibrator 9 Mainframe Freq A B C D E Calibrator Mainframe MHz 10 MHz Flatness Spec 2 075 000 000 64 0 010 Vpp 625 000 000 60 725 000 000 60 900 000 000 60 1 125 000 000 60 1 250 000 000 60 1 325 000 000 60 1 375 000 000 60 1 425 000 000 60 1 475 000 000 60 1 525 000 000 60 1 575 000 000 60 1 650 000 000 E 1 750 000 000 70 1 850 000 000 Ee 1 925 000 000 70 1 975 000 000 E 2 025 000 000 E 2 075 000 000 70 0 005 Vpp 625 000 000 70 725 000 000 70 900 000 000 70 1 125 000 000 70 1 250 000 000 70 1 325 000 000 70 1 375 000 000 70 1 425 000 000 70 1 475 000 000 70 1 525 000 000 70 1 575 000 000 70 Options Verification Tables for Channels 2 5 Table 5
52. 0 100uV nominal voltage 8 41 5820A Service Manual 3 42 Table 3 21 High Frequency Flatness Verification cont Amplitude Calibrator Calibrator Mainframe V Mainframe B D E Flatness Spec 96 Freq 50 kHz MHz 0 099 EN 1 60 0 100 1 60 600 MHz 4 10 Complete Columns A E as follows A Enter the 437B present frequency Reading W B Enter the 437B 50 kHz Reading W C S power sensor correction factor for present frequency W CF Column A D Apply power sensor correction factor for 50 kHz W CF Column B entry E Compute and enter Error relative to 50 kHz plus floor 96 100 sqrt Column B Column D entry 1 100 100uV nominal voltage Calibration and Verification Verification 3 Table 3 21 High Frequency Flatness Verification cont Amplitude Calibrator Calibrator Mainframe V Mainframe A B D E Flatness Spec 96 Freq 50 kHz MHz 025 A H54 0 399 1 52 600 MHz 4 02 Complete Columns A E as follows A Enter the 437B present frequency Reading W B Enter the 437B 50 kHz Reading W C S power sensor correction factor for present frequency W CF Column A D Apply power sensor correction factor for 50 kHz W CF Column B entry E Compute and enter Error relative to 50 kHz plus floor 96 100 sqrt Column B Column D entry 1 100 100uV nominal voltage 3 43 5820A Service Manual 3 44
53. 0 000 000 60 1 850 000 000 60 1 925 000 000 60 1 975 000 000 60 2 025 000 000 60 2 075 000 000 60 0 800 Vpp 625 000 000 5 725 000 000 E 900 000 000 5 5 15 5820A Service Manual 5 16 Table 5 7 Leveled Sinewave Verification Flatness Channels 1 2 and 5 cont Calibrator x Mainframe Freq A B C D E Calibrator Mainframe MHz 10 MHz Flatness Spec 1 125 000 000 50 1 250 000 000 50 1 325 000 000 50 1 375 000 000 50 1 425 000 000 50 1 475 000 000 50 1 525 000 000 50 1 575 000 000 50 1 650 000 000 60 1 750 000 000 60 1 850 000 000 60 1 925 000 000 60 1 975 000 000 60 2 025 000 000 60 2 075 000 000 60 0 400 Vpp 625 000 000 50 725 000 000 50 900 000 000 50 1 125 000 000 50 1 250 000 000 50 1 325 000 000 50 1 375 000 000 50 1 425 000 000 50 1 475 000 000 50 1 525 000 000 50 1 575 000 000 50 1 650 000 000 60 1 750 000 000 60 1 850 000 000 60 1 925 000 000 60 1 975 000 000 60 Options Verification Tables 5 Table 5 7 Leveled Sinewave Verification Flatness Chann
54. 00 38 2nd harmonic 3 5 865 000 000 33 3rd harmonic 3 5 865 000 000 38 2nd harmonic 3 5 900 000 000 33 3rd harmonic 3 5 900 000 000 38 2nd harmonic 3 5 935 000 000 33 3rd harmonic 3 5 935 000 000 38 Verification Tables 5 Table 5 6 GHz Leveled Sinewave Verification Harmonics Channels 1 2 and 5 cont Harmonic 2nd harmonic 3rd harmonic Nominal Value V p p Frequency Measured Value dB 3 5 1 000 000 000 3 5 1 000 000 000 Deviation dB 1 Year Spec dB 33 38 2nd harmonic 3rd harmonic 3 5 3 5 1 075 000 000 1 075 000 000 33 38 2nd harmonic 3rd harmonic 3 5 1 145 000 000 3 5 1 145 000 000 33 38 2nd harmonic 3rd harmonic 3 5 1 250 000 000 3 5 1 250 000 000 33 38 2nd harmonic 3rd harmonic 3 5 1 285 000 000 3 5 1 285 000 000 33 38 2nd harmonic 3rd harmonic 3 5 3 5 1 375 000 000 1 375 000 000 33 38 2nd harmonic 3rd harmonic 3 5 3 5 1 425 000 000 1 425 000 000 33 38 2nd harmonic 3rd harmonic 3 5 3 5 1 475 000 000 1 475 000 000 33 38 2nd harmonic 3rd harmonic 3 5 3 5 1 500 000 000 1 500 000 000 33 38 2nd harmonic 3rd4 harmonic 3 5 3 5 1 525 000 000 1 525 000 000 33 38 2nd harmonic 3rd harmonic 3 5 3 5 1 600 000 000 1 600 000
55. 00000000 0 2201 5 15 Pulse Width Table 5 12 Pulse Width Measured Channel Function Measurement Amplitude Width Period Value Deviation Spec s 3 pulse 1 5 1 00E 09 2 00E 07 5 5E 10 3 pulse 1 5 9 90E 09 2 00E 07 1 0E 09 3 pulse 1 5 7 99E 08 2 00E 06 4 5E 09 3 pulse 1 5 5 00E 07 1 00E 05 2 6E 08 5 23 5820A Service Manual 5 24 5 16 Edge Rise Time Verification Channels 2 5 Table 5 13 Edge Rise Time Channel 2 Measured Channel Function Measurement Amplitude Frequency Value Deviation Spec s 2 edge rise time 0 025 1000000 3 00E 10 2 edge rise time 1 1000000 3 00E 10 Table 5 14 Edge Rise Time Channel 3 Measured Channel Function Measurement Amplitude Frequency Value Deviation Spec s rise time 0 025 1000000 Pf 3 00E 10 rise time 1 1000000 PP 3 00E 10 Table 5 15 Edge Rise Time Channel 4 mm Measured Channel Measurement Amplitude Frequency Value Deviation Spec s 4 edge rise time 0 025 1000000 3 00E 10 4 edge rise time 1 1000000 3 00E 10 Table 5 16 Edge Rise Time Channel 5 Measured Channel Function Measurement Amplitude Frequency Value Deviation Spec s edge rise time 0 025 1000000 3 00E 10 edge rise time 1 1000000 3 00E 10 edge rise time 2 5 1000000 3 00E 10 edge rise time 2 5 10000000 3 50E 10 Op
56. 10000000 0 0826 4 levsine flatness 5 5 30000000 0 0826 4 levsine flatness 55 70000000 0 0826 4 levsine flatness 5 5 120000000 0 1101 4 levsine flatness 55 290000000 0 1101 4 levsine flatness 5 5 360000000 0 1926 4 levsine flatness 55 390000000 0 1926 4 levsine flatness 5 5 400000000 0 1926 4 levsine flatness 5 5 480000000 0 1926 4 levsine flatness 5 5 570000000 0 2201 4 levsine flatness 5 5 580000000 0 2201 4 levsine flatness 5 5 590000000 0 2201 4 levsine flatness 5 5 600000000 0 2201 5 22 Options Verification Tables for Channels 2 5 Table 5 11 Leveled Sine Flatness 5 5 V Channel 5 Measured Spec Channel Function Measurement Amplitude Frequency Value Deviation Vp p levsine flatness 5 5 1000000 0 0826 levsine flatness 5 5 10000000 0 0826 levsine flatness 5 5 30000000 0 0826 levsine flatness 5 5 70000000 0 0826 levsine flatness 5 5 120000000 0 1101 levsine flatness 5 5 290000000 0 1101 levsine flatness 5 5 360000000 0 1926 levsine flatness 5 5 390000000 0 1926 levsine flatness 5 5 400000000 0 1926 levsine flatness 5 5 480000000 0 1926 levsine flatness 5 5 570000000 0 2201 levsine flatness 5 5 580000000 0 2201 levsine flatness 5 5 590000000 0 2201 levsine flatness 5 5 6
57. 3 5 mm m f e BNC f to 3 5 mm m adapter 2 e 2N to BNC cables supplied with the Scope Calibrator Press the NEXT SECTION blue softkey until the display reads Set up to measure Pulse Width Then follow these steps to calibrate pulse width 1 Connect the N to BNC cable supplied with the Scope Calibrator to the Calibrator Mainframe s CHAN 1 connector Connect the other end of the N to BNC cable to 3 15 5820A Service Manual one BNC f to 3 5 mm m adapter then to the DSO s sampling head through the 3 dB attenuator 2 Using the second BNC f to 3 5 mm m adapter and N to BNC cable connect the Calibrator Mainframe s TRIG OUT connector to the 11801 s Trigger Input 3 Set the DSO to these parameters e Main Time Base position initial 40 ns e Vertical scale 200 mV div 900 mV offset e Trigger source ext level 0 5 V ext atten x10 slope mode auto e Measurement Function positive width 4 Press the GO ON blue softkey Adjust the DSO horizontal scale and main time base position until the pulse signal spans between half and the full display If no pulse is output increase the pulse width using the Calibrator Mainframe front panel knob until a pulse is output 6 If prompted to adjust the pulse width by the Calibrator Mainframe display adjust the pulse width to as close to the displayed value as possible using the Calibrator Mainframe front panel knob then press the GO ON blue softkey 7
58. 44 9 mV 3 4641 0 001447 V triangle 109 mV 3 4641 0 00337 V triangle 449 mV 3 4641 0 01357 V triangle 1 09 V 3 4641 0 0328 V triangle 2 50V 3 4641 0 0751 V 3 53 Pulse Width Verification The following equipment is used to verify the pulse width e High Frequency Digital Storage Oscilloscope Tektronix 11801 with Tektronix SD 22 26 sampling head e 3dB attenuator SMA m f e BNC f to SMA adapter 2 e Nto BNC cable supplied with the Scope Calibrator 2 Put the Calibrator into standby Connect the N to BNC cable supplied with the Scope Calibrator to the Calibrator Mainframe s CHAN 1 connector Connect the other end of the N to BNC cable to one BNC f to SMA m adapter then to the DSO s sampling head through the 3 dB attenuator Using the second BNC f to SMA m adapter and N to BNC cable connect the Calibrator Mainframe s EXT TRIG channel 5 connector to the 11801 s Trigger Input On the Calibrator keypad select WSS On the display press the soft key under Pulse Press the soft key under TRIG to select the TRIG 1 External Trigger output Press J Jon the Calibrator to activate the output Auto set the Digital Scope Then set the Digital Scope to these starting values 2 ns div 200 mV div Main Time Base position initial Vertical scale 3 53 5820A Service Manual Trigger slope Measurement Function source ext level 200 mV ext atten x10 mode auto positive width 1 Program the Calibrator
59. 5820A Service Manual yu002f eps Figure 5 3 Porch 9 Adjust R175 so that a porch waveform can be observed refer to Figure 5 3 10 Adjust the oscilloscope vertical setup to be 5 mV Div 11 Adjust R188 to make the bullet waveform shown in Figure 5 4 Its amplitude should not be less than 7 mV yu001f eps Figure 5 4 Bullet on the Porch 12 Adjust R175 to raise the porch level to the height at which fast edge is stable refer to figure 5 5 13 Use a cursor on the scope to mark this porch level Level I 14 By adjusting R175 continue to raise the porch level to the height at which the fast edge waveform is unstable 15 Use a cursor on the scope to mark this porch level Level II A typical voltage difference between Level I and Level II is 20 mV Refer to Figure 5 6 5 8 Options 5 GHz Module yu003 eps Figure 5 5 Critically Triggered Edge at Porch Height Level 16 Adjust R175 to reduce the porch level setting it in the middle of Level I and Level II 17 Adjust the vertical horizontal settings of the oscilloscope so that an entire fast edge waveform can be viewed It should look like the waveform in Figure 5 2 PEPPER Alk e eee ee y Level I yu004f eps Figure 5 6 Critically Distorted Edge at Porch Height Level Il 18 Verify that the edge rise time is lt 150 ps at the cable end and that the amplitude from the porch to the top of the edge is 250
60. 5820A Service Manual specifications 1 8 Theory of Operation 2 7 External reference input specifications 1 14 A AC Voltage frequency function F Verification Fuse repl the 4 3 Air filter cleaning the 4 4 a a E Auxiliary input specifications G General cleaning 4 6 C General specifications 1 6 Calibration Scope Calibrator H MeasZ Hardware adjustments 3 58 Pulse Width Hardware adjustments for 3 58 setup 3 6 Calibration Calibration and Verification Required Equi pment 3 3 Caution 4 4 6 Cleaning the air ird L Cleaning general 4 6 Leveled sine wave function Instruction manuals 1 4 CURRENT specifications lt 600 Mhz 1 9 Verification Leveled Sine Wave function adjusting the harmonics 3 59 p adjusting VCO balance 3 58 DC Voltage function Amplitude Verification 3 34 Verification 3 9 B 11 B 20 B 26 equipment setup 3 13 Flatness Verification High frequency 3 15 E High frequency at 5 5V 3 37 Edge Duty Cycle function Low frequency 3 14 Verification 3 31 Low frequency at 5 5V 3 36 Edge Frequency function Low frequency equipment setup 3 34 B 36 5820A Service Manual Frequency Verification Harmonics Verification 3 47 5 10 Theory of Operation 2 7 5 Channel option 2 9 5 3 dc voltage measurement mode 2 8 GHz module 2 9 5 5 high frequency switching 2 9
61. 63 mV p p are verified use the 6481D Power Sensor Otherwise use the 8482A Power Sensor Connect the HP 437B Power Meter to either the 8482A or the 8481D Power Sensor For more information on connecting the two instruments see the power meter and power sensor operators manuals Connect the power meter power sensor combination to the CHAN 1 connector on the Calibrator Mainframe The Hewlett Packard 437B Power Meter must be configured by setting the parameters listed below Zero and self calibrate the power meter with the power sensor being used Refer to the Hewlett Packard 437B Operators Manual for details e PRESET e RESOLN 3 e AUTO FILTER e WATTS e SENSOR TABLE 0 default Low Frequency Verification This procedure provides an example of testing low frequency flatness using a 5 5 V output Follow the same procedure for testing other amplitudes only compare results against the flatness specification listed in Table 3 20 1 Program the Calibrator Mainframe for an output of 5 5 V 9 500 kHz Press rey on the Calibrator Mainframe to activate the output 2 Allow the 5790A reading to stabilize The 5790A should display approximately 1 94 V rms Enter the 5790A reading in Column A of Table 3 20 3 Enter 50 kHz into the Calibrator Mainframe Allow the 5790A reading to stabilize then enter the 5790A reading in Column B of Table 3 20 4 Enter the next frequency listed in Table 3 20 Allow the 5790A reading to stabilize t
62. 7 Leveled Sinewave Verification Flatness Channels 1 2 and 5 cont Calibrator Mainframe Freq A B C E Calibrator Mainframe MHz 10 MHz Flatness Spec 96 1 650 000 000 8 0 1 750 000 000 8 0 1 850 000 000 8 0 1 925 000 000 8 0 1 975 000 000 8 0 2 025 000 000 8 0 2 075 000 000 8 0 Complete Col rins A E as follows A Enter the 437B or equivalent present frequency Reading W B Enter the 437B or equivalent 10 MHz Reading W C Apply power sensor correction factor for present frequency W CF Column A entry D Apply power sensor correction factor for 10 MHz W CF Column B entry E Compute and enter Error relative to 10 MHz 96 100 sqrt Column C entry sqrt Column D entry sqrt Column D entry 100 100uV nominal voltage 5 13 Verification Tables for Channels 2 5 The following Verification Tables are to be used to verify channels 2 5 for other functions The verification test points are provided here as a guide when verification to one year specifications is desired 5 14 Leveled Sine Flatness 600 MHz Table 5 8 Leveled Sine Flatness 5 5 V Channel 2 pni E Channel Function Measurement Amplitude Frequency Value Deviation vp p 2 levsine flatness 5 5 1000000 0 0826 2 levsine flatness 5 5 10000000 0 0826 2 levsine flatness 5 5 30000000 0 0826 2 levsine flatness 5 5 70000000 0 0826 2 levsi
63. ANGE digital filter mode to FAST restart fine and Hi Res on Program the Calibrator Mainframe to output the wave type and voltage listed in Table 3 24 Allow the 5790A reading to stabilize then record the 5790A rms reading for each wave type and voltage in Table 3 24 Multiply the rms reading by the conversion factor listed to convert it to the peak to peak value Compare result to the tolerance column Calibration and Verification Verification 3 Table 3 24 Wave Generator Verification at 1 MQ Calibrator Mainframe Wave Type square square square square square square square square square square square square square square square square square square sine sine sine sine sine sine sine triangle triangle triangle triangle triangle triangle triangle Calibrator Mainframe Output 10 kHz 1 8 mV 11 9 mV 21 9 mV 22 0 mV 56 0 mV 89 9 mV 90 mV 155 mV 219 mV 220 mV 560 mV 899 mV 0 90 V 3 75 V 6 59 V 6 6 V 30 8 V 55 0 V 1 8 mV 21 9 mV 89 9 mV 219 mV 899 mV 6 59 V 55V 1 8 mV 21 9 mV 89 9 mV 219 mV 899 mV 6 59 V 55V 5790A Reading V rms Conversion Factor 2 0000 2 0000 2 0000 2 0000 2 0000 2 0000 2 0000 2 0000 2 0000 2 0000 2 0000 2 0000 2 0000 2 0000 2 0000 2 0000 2 0000 2 0000 2 8284 2 8284 2 8284 2 8284 2 8284 2 8284 2 8284 3 4641 3 4641 3 4641 3 4641 3 4641 3 4641 3 4641 5790A Reading x Conversion Factor
64. Allow the DSO width reading to stabilize Enter the reading via the Calibrator Mainframe front panel keypad then press ENTER Note The Calibrator Mainframe issues a warning when the entered value is out of bounds If this warning occurs recheck the setup and carefully re enter the reading with the proper multiplier i e m u n p If the warning still occurs enter a value between the displayed pulse width and the previously entered value Keep attempting this moving closer and closer to the displayed pulse width until the value is accepted Complete the pulse width calibration procedure The pulse width calibration procedure must now be repeated until all entered values are accepted the first time without warning 8 Repeat steps 5 to 7 until the Calibrator Mainframe display prompts to connect a resistor Press the STORE CONSTS blue softkey to store the new calibration constants 3 21 MeasZ Calibration The MeasZ function is calibrated using resistors and capacitors of known values The actual resistance and capacitance values are entered while they are being measure by the Calibrator Mainframe The resistors and capacitor must make a solid connection to a BNC f to enable a connection to the end of the N to BNC cable supplied with the Scope Calibrator The resistance and capacitance values must be known at this BNC f connector Fluke uses a HP 3458A DMM to make a 4 wire ohms measurement at the BNC f connector to determine the act
65. Buyer for importation costs of repair replacement parts when product purchased in one country is submitted for repair in another country Fluke s warranty obligation is limited at Fluke s option to refund of the purchase price free of charge repair or replacement of a defective product which is returned to a Fluke authorized service center within the warranty period To obtain warranty service contact your nearest Fluke authorized service center or send the product with a description of the difficulty postage and insurance prepaid FOB Destination to the nearest Fluke authorized service center Fluke assumes no risk for damage in transit Following warranty repair the product will be returned to Buyer transportation prepaid FOB Destination If Fluke determines that the failure was caused by misuse alteration accident or abnormal condition of operation or handling Fluke will provide an estimate of repair costs and obtain authorization before commencing the work Following repair the product will be returned to the Buyer transportation prepaid and the Buyer will be billed for the repair and return transportation charges FOB Shipping Point THIS WARRANTY IS BUYER S SOLE AND EXCLUSIVE REMEDY AND IS IN LIEU OF ALL OTHER WARRANTIES EXPRESS OR IMPLIED INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE FLUKE SHALL NOT BE LIABLE FOR ANY SPECIAL INDIRECT INCIDENTAL OR CONSEQUENT
66. E IID EVDO Shake out the excess water then allow the filter element to dry thoroughly Wash the filter element in soapy water before reinstalling it 1 AURARILELEER BUD BRR LET SEVP LER PUG b Rinse the filter element thoroughly C a 4 Reinstall the filter element by performing the filter removal steps in reverse order 5820A Service Manual 4 4 General Cleaning For general cleaning wipe the case front panel keys and lens using a soft cloth slightly dampened with water or a non abrasive mild cleaning solution that does not harm plastics A Caution To prevent damage do not use aromatic hydrocarbons or chlorinated solvents for cleaning They can damage the plastic materials used in the calibrator 4 5 Service Information The warranty for the original purchaser of each Model 5820A Calibrator is 1 year beginning on the date received The warranty is located at the front of this manual Note If sending the 5820A in for servicing be sure to send all BNC cables back with the unit 4 6 LL m 5 mKu l gund uLrb Y SOANAMPWNE OS CA CA CA CA CA CA CA CA CA CA CA CA CA CA CA CAL CA CA CA CA CA CA NN Ne Chapter 5 Options scritto SPA EAO stem GHZ Mod le EE cewsetbee GHz Option Specifications eese Fast Edge Specifications 0 ccc ceecescesecesecsseeeseeeeeeeeeeeeaeeeeeeaeenaes Leveled Sine Wave gt 600 MHz Spe
67. FLUKE 5820A Oscilloscope Calibrator Service Manual PN 673142 June 1999 Rev 1 4 03 1999 2003 Fluke Corporation All rights reserved Printed in U S A All product names are trademarks of their respective companies LIMITED WARRANTY amp LIMITATION OF LIABILITY Each Fluke product is warranted to be free from defects in material and workmanship under normal use and service The warranty period is one year and begins on the date of shipment Parts product repairs and services are warranted for 90 days This warranty extends only to the original buyer or end user customer of a Fluke authorized reseller and does not apply to fuses disposable batteries or to any product which in Fluke s opinion has been misused altered neglected or damaged by accident or abnormal conditions of operation or handling Fluke warrants that software will operate substantially in accordance with its functional specifications for 90 days and that it has been properly recorded on non defective media Fluke does not warrant that software will be error free or operate without interruption Fluke authorized resellers shall extend this warranty on new and unused products to end user customers only but have no authority to extend a greater or different warranty on behalf of Fluke Warranty support is available if product is purchased through a Fluke authorized sales outlet or Buyer has paid the applicable international price Fluke reserves the right to invoice
68. IAL DAMAGES OR LOSSES INCLUDING LOSS OF DATA WHETHER ARISING FROM BREACH OF WARRANTY OR BASED ON CONTRACT TORT RELIANCE OR ANY OTHER THEORY Since some countries or states do not allow limitation of the term of an implied warranty or exclusion or limitation of incidental or consequential damages the limitations and exclusions of this warranty may not apply to every buyer If any provision of this Warranty is held invalid or unenforceable by a court of competent jurisdiction such holding will not affect the validity or enforceability of any other provision Fluke Corporation Fluke Europe B V P O Box 9090 P O Box 1186 Everett WA 98206 9090 5602 BD Eindhoven U S A The Netherlands 5 94 Safety Information This Calibrator complies with IEC publication 1010 1 1992 1 Safety Requirements for Electrical Measuring Control and Laboratory Equipment and ANSI ISA S82 01 1994 and CAN CSA C22 2 No 1010 1 92 This manual contains information warnings and cautions that must be followed to ensure safe operation and to maintain the Calibrator in a safe condition Use of this Calibrator in a manner not specified herein may impair the protection provided by the Calibrator This Calibrator is designed for IEC 1010 1 Installation Category II use It is not designed for connection to circuits rated over 4800 VA Warning statements identify conditions or practices that could result in personal injury or loss of life Caution statements identify
69. ID ADHESIVE MOUNT 1 688629 A64MP2 COVER INSTRUMENT TOP 1 647146 A64MP3 COVER INSTRUMENT BOTTOM 1 627213 A64MP4 REAR PANEL 1 617230 A64MP14 BOTTOM FOOT MOLDED GREY 7 4 868786 A64MP15 A64MP22 A64MP24 A64MP 16 21 PLASTIC PART CAP POLYETH 5 8 24 41 6 689320 A64MP51 CABLE GHZ OUT 1 661964 A64MP54 CABLE MHZ GHZ 1 661998 A64MP56 CABLE TRIGGER MHZ GHZ 1 662228 A64MP72 COVER ANALOG 1 673126 A64W1 CABLE SMA ST TORT 1 626025 A64W7 ASSY OUTPUT BLOCK MODULE GHZ 1 66239 A80A80 PCA VOLTAGE A80 1 626033 A81 CURRENT OUTPUT 5820A 4081 1 662304 A92A93 BANDWIDTH GHZ MODULE 1 659950 6 9 5820A Service Manual 6 10 REAR PANEL MODULE GHz MODULE SIGNAL MODULE GHz OPTION ONLY VE CHANNEL SINGLE CHANNEL QTY I FIVE 3 TTION ONLY CHANNEL QTY 2 ADDITIONAL 3X 2 O Bw T Ax MOTHER BD xL E SINGLE CHANNEL OTY a 4 FIVE CHANNEL d OTY 4 ADDITIONAL 2x SINGLE CHANNEL OTY 2 FIVE cy CHANNEL OTY 4 ADDITIONAL CABLING DIAGRAM SEE SHEET 6 FOR SINGLE CHANNEL WITHOUT GHZ SEE SHEET 7 FOR FIVE CHANNEL WITHOUT GHZ SEE SHEET 8 FOR SINGLE CHANNEL WITH GHZ SEE SHEET 9 FOR FIVE CHANNEL WITH GHZ 5820A Final Assembly Sheet 4 of 9 yu175f eps Figure 6 1 Final Assembly cont Replaceable Parts 6 List of Replacement Parts 5820A Final Assembly Sheet 5 of 9 yu180f eps Figure 6 1 Final Assembly cont 5820A Service Manual Tabl
70. MQ Measured Spec Channel Function Measurement Amplitude Frequency Value Deviation Vp p 3 acvh offset 0 001 1000 0 0000425 3 acvh amplitude 0 001 1000 0 0000055 topline 0 001 1000 aberration baseline 0 001 1000 aberration offset 0 001 1000 0 0000425 amplitude 0 001 1000 0 0000055 topline 0 001 1000 aberration baseline 0 001 1000 aberration offset 130 1000 0 32504 amplitude 130 1000 0 065005 topline 130 1000 aberration baseline 130 1000 aberration offset 130 1000 0 32504 amplitude 130 1000 0 065005 topline 130 1000 aberration baseline 130 1000 aberration Table 5 25 Edge Amplitude Measured Spec Channel Function Measurement Amplitude Frequency Value Deviation Vp p 3 edge amplitude 2 5 10 kHz 0 0502 3 edge topline aberr 2 5 10 kHz 0 0145 15 ns 5 27 5820A Service Manual 5 20 Channel 4 DMM Input Table 5 26 Levsine Amplitude Measured Spec Channel Measurement Amplitude Frequency Value Deviation Vp p 4 levsine amplitude 5 5 50000 0 1103 Table 5 27 DC Voltage 50 Q Measured Channel Function Amplitude Value Deviation Spec V 4 dcvh 0 0 000025 4 dcvh 0 001 0 00002525 4 dcvh 0 001 0 00002525 4 dcvh 6V 0 032525 4 devh 6V 0 032525 Table 5 28 AC Voltage 50 Q Measured Spec Channel Function Measurement Amplitu
71. Mainframe to output the pulse width and period at 1 5 V as listed in Table 3 26 2 Change the horizontal scale of the DSO so that you can view one positive pulse width Record the width measurement made by the DSO Compare to the tolerance column of Table 3 26 3 Change the pulse amplitude and repeat the measurements for an amplitude of 0 15 V You will need to change the vertical scale of the DSO Table 3 26 Pulse Generator Verification Pulse Width Nominal Value Pulse Width Period Measured Deviation 1 Year Spec V p p s s Value s s s 1 5 1 0 x 10 200 0 x 10 250 x 10 1 5 9 9 x 10 200 0 x 10 700 x 10 1 5 79 9 x 10 1 000 x 10 4 2 x 10 1 5 500 0 x 10 10 00 x 10 25 2 x 10 0 150 1 0 x 10 200 0 x 10 250 x 10 0 150 9 9 x 10 200 0 x 10 700 x 10 0 150 79 9 x 10 1 000 x 10 4 2 x 10 0 150 500 0 x 10 10 00 x 10 25 2 x 10 3 54 Pulse Skew Calibration and Verification The following equipment is used to Calibrate and verify Pulse Skew e High Frequency Digital Storage Oscilloscope Tektronix 11801 with Tektronix SD 22 26 sampling head e SMA T m f m connector e 3 dB attenuator SMA m f e BNC f to SMA adapter 2 e 0 5m SMA m SMA m cable e Nto BNC cable supplied with the Scope Calibrator 2 The skew function was introduced in December 1998 It is available only in Scope Calibrato
72. Nonoperating 12 200 m 40 000 ft maximum Safety Designed to comply with IEC 1010 1 1992 1 ANSI ISA S82 01 1994 CAN CSA C22 2 No 1010 1 92 Interface Impedance The 5820A is designed to drive both 50 O and 1MQ loads Analog Low Isolation 20V EMC Complies with EN 61326 1 Line Power Line Voltage selectable 100 V 120 V 220 V 240 V Line Frequency 47 to 63 Hz Line Voltage Variation 10 about line voltage setting Power Consumption 250 VA Dimensions Height 17 8 cm 7 inches standard rack increment plus 1 5 cm 0 6 inch for feet on bottom of unit Width 43 2 cm 17 inches standard rack width Depth 47 3 cm 18 6 inches overall Weight 20 kg 44 pounds 5820A Service Manual 1 8 1 8 Volt Specifications Table 1 2 Volt Specifications Volt Function DC Signal Square Wave Signal 1 into into into into Load 50 Q 1 MQ 50 Q 1MQ Amplitude Characteristics Range OV to t6 6V OV to 130V 1 mV to 1 mV to 6 6 V p p 130 V p p range resolution Resolution 1mV to 24 999 mV 1uV 25 mV to 109 99 mV 10 pV 110 mV to 2 1999 V 100 uV 2 2 V to 10 999 V 1mV 11 V to 130 V 10 mV Adjustment Range Continuous 1 Year Absolute Uncertainty tcal 5 C 0 25 of 0 025 0 25 0 05 output of output of output of output 40 uV 25 uV 40 pV 5 uV 2 Sequence 1 2 5 e g 10 mV 20 mV 50 mV Square W
73. ONSTS blue softkey to store the new calibration constants Note The Calibrator Mainframe will warn when the entered value is out of bounds If this warning occurs check the setup again and carefully re enter the reading insuring proper multiplier i e m 4 n p If the warning still occurs repair may be necessary 3 14 Wave Generator Calibration This procedure uses the following equipment Hewlett Packard 3458A Digital Multimeter BNC f to Double Banana adapter N to BNC cable supplied with the Scope Calibrator Within the calibration menu press the NEXT SECTION blue softkey until the display reads WAVEGEN Cal Then follow these steps to calibrate the Wave Generator 1 Connect the Calibrator Mainframe s CHAN 1 connector to the HP 3458A input using the N to BNC cable and the BNC f to Double Banana adapter Set the HP 3458A to DCV NPLC 01 LEVEL 1 TRIG LEVEL and the DELAY to 0002 for measuring the upper part of the wave form i e topline and the DELAY to 0007 for measuring the lower part of the wave form i e baseline Manually range lock the HP 3458A to the range that gives the most resolution for the topline measurements Use this same range for the corresponding baseline measurements at each step For each calibration step take samples for at least two seconds using the HP 3458A MATH functions to retrieve the average or mean value See Setup for Scope Calibrator Edge and Wave Generator Measur
74. T EEA 6 Replaceable Parts iori kcu kx nanenane niassa KR EUER C X RR MER EUER 6 1 IntrOduCtOf ee redit Gets ier trtesi eto Pete oria o e out een ns RON e cda 6 2 How to Obtain Parts diete eive te EL nee PERI SHEER i 6 3 List of Replacement Parts Index List of Tables Table Title 1 1 General Specifications 0 eee eeecesecesecssecseeceseeeeneeeseeeaeecaeecaaecsaecsaeseaeeeeeeeeeeeeeeees 1 2 Volt Specifications reiche Rede tle aod bep RUE EEES 1 3 DC Volt Measure Specifications eese 1 4 Edge Specifications eate ere HERR aa a i 1 5 Leveled Sine Wave Specifications 600 MHz sse 1 6 Time Marker Specifications rennen nennen nennen 1 7 Wave Generator Specifications eere eene ener 1 8 Pulse Generator Specifications eeseessesseeeeseeeenere nennen nennen nennen 1 9 Trigger Signal Specifications Pulse Function eee 1 10 Trigger Signal Specifications Time Marker Function eeeeeeess 1 11 Trigger Signal Specifications Edge Function eee 1 12 Trigger Signal Specifications Square Wave Voltage Function 1 13 TV Trigger Signal Specifications sees nennen 1 14 Tunnel Diode Drive Capability eene 1 15 Oscilloscope Input Resistance Measurement Specifications sse 1 16 Oscilloscope Input Capacitance Measur
75. TMO canner ine E HEP RE ree ERU E Ernte ierant dis 2 25 Edge Amplitude aee EIL EL ee e EL re piste aree Lee eie ED aa 5 26 Levsme Amplitude iiie bite trasera er rebel e ede bo aaiae D227 DG Volare J0 Oa 25 28 AC Voltage 50 0 unes Ere ire daasoediielvoechslicevaatidvesaaiassenteiveseteaie 23 29 Edge Amphltude eee netten EUR tae bn e Pa vo eode Ente edicto etos 5 30 Levsime Amplitude rti aires a eoo e RoE 25 31 DC Voltage 1 MO erii eerie tpe ente pere eer entree se ete epa rn cin eh bere EA rue EROR Ree ede 25 32 AC Voltage TMO cs cci t ine Re RETE REAPER une REPERI e EAE E 23 33 Edge Amphltude 5 iiie eter irn e ee Pepe ria re eH Eee ee Ea ele Pea 5 34 Capacitance Channels 2 5 ssssssssssessseseessssresseserssessrsseessesressesresseseesseesssseeseesees 6 1 5820A Manuals 0 c cee cccccccsseceescecesececsssceesseceeseeceeeecsaecsesseceeeeecsseeecaeeseseeceseeeesas 6 2 Front Panel Module List of User Replaceable Parts eee 6 3 Rear Panel Module List of Replaceable Parts eene 6 4 Chassis Module List of Replaceable Parts eene 6 5 Single Channel Without GHz Option List of Replaceable Parts 6 6 Single Channel With GHZ Option List of Replaceable Parts vi List of Figures Figure Title 1 1 5820A Multi Product Calibrator sess eene ener
76. Table 3 21 High Frequency Flatness Verification cont Amplitude Calibrator Calibrator Mainframe V Mainframe B D E Flatness Spec 96 Freq 50 kHz MHz y pn RE 0 8 1 51 600 MHz 4 01 Complete Columns A E as follows A Enter the 437B present frequency Reading W B Enter the 437B 50 kHz Reading W C S power sensor correction factor for present frequency W CF Column A D Apply power sensor correction factor for 50 kHz W CF Column B entry E Compute and enter Error relative to 50 kHz plus floor 96 100 sqrt Column B Column D entry 1 100 100uV nominal voltage Calibration and Verification Verification 3 Table 3 21 High Frequency Flatness Verification cont Amplitude Calibrator Calibrator Mainframe V Mainframe B D E Flatness Spec 96 Freq 50 kHz MHz T p n5 13 1 51 600 MHz 4 01 Complete Columns A E as follows A Enter the 437B present frequency Reading W B Enter the 437B 50 kHz Reading W C S power sensor correction factor for present frequency W CF Column A D Apply power sensor correction factor for 50 kHz W CF Column B entry E Compute and enter Error relative to 50 kHz plus floor 96 100 sqrt Column B Column D entry 1 100 100uV nominal voltage 3 45 5820A Service Manual 3 46 Table 3 21 High Frequency Flatness Verification cont Amplitude Calibrator
77. Take dc current measurements at 110 uA 1 10 mA and 11 0 mA and enter the values on the Calibrator front panel 4 Press the GO ON blue softkey to proceed through the calibration points Follow the procedures on the front panel until the display reads 900 uA 1000 Hz AC Current Calibration For the ac calibration the offset from 0 mA current called the baseline is measured and stored in the Calibrator Remove the DMM direct connection and set up the DMM to measure dc volts Follow the instructions in the section Setup for Scope Calibrator Voltage AC Current Measurements above for setting up the DMM 1 Plug in the 1000 precision resistor into the Calibrator front panel 2 Attach the DMM to the ends of the precision resistor 3 Take voltage measurement across the resistor at 900 uA convert to mA and enter the DMM value on the Calibrator front panel 4 Press the GO ON blue softkey 5820A Service Manual 10 11 Plug in the 100 Q precision resistor into the Calibrator front panel Take voltage measurement across the resistor at 9 00 mA convert to mA and enter the DMM value on the Calibrator front panel Press the GO ON blue softkey Plug in the 10 precision resistor into the Calibrator front panel Take voltage measurement across the resistor at 90 0 mA convert to mA and enter the DMM value on the Calibrator front panel Press the GO ON blue softkey To complete the Current calibration press the STORE C
78. ally Triggered Edge at Porch Height Level I esses 5 6 Critically Distorted Edge at Porch Height Level IL 5 9 5 7 Setup for Leveled Sine Wave Harmonics Verification eese 6 1 JImalAssembly nde ne Gett na EDE Herde Ee ee tenet nested vii 5820A Service Manual viii P2 IQ TO TO I2 T2 P2 2 6 e ESSE n n0 Mot bhonm OQvtAJdS to P9 reo MO GO cJ ON ied t9 Fa poet ron UM UPS I LR LA xn LA 0 Lm rnm mnm Lm xn pb p pd Lm xm pk pb rE e L i pd p paak Chapter 1 introduction and Specifications ItitrOdUCLbOfi oed Etre ei e EE E e lads How to Contact Fluke eint pete be tinea ee E Instruction Manuals 2 ne Rr rte epe eer eere per rebut 5820A Operators Manual eee 5820A Service Manual eee eene Nyosebsferinfo T UT General Specifications saene iini oerni o E E E E EEE ERR Volt SpecifiCalIOBs ctt ttti ertet enaa e E eb ead DC Volt Measure Specifications Edge Specifications 2er retine e E he eere detentus Leveled Sine Wave Specifications seseeeee Time Marker Specifications esee Wave Generator Specifications eeeseeeeeeeeeee 1 ns Pulse Generator Specifications eeee Trigger Signal Specifications Pulse Function Trigger Signal Specifications Time Marker Function Trigger Signal Spec
79. aseline measurements correcting for the load resistance error To make this correction multiply the readings by 0 5 50 Rload Rload where Rload actual feedthrough termination resistance 3 16 Leveled Sine Wave Amplitude Calibration This procedure uses the following equipment e HP 437A Power Meter or equivalent e HP 8481D Power Sensor e HP 8482A Power Sensor e N female to BNC female adapter e Nto BNC cable supplied with the Scope Calibrator Select the NEXT SECTION blue softkey until the display reads Set up to measure leveled sine amplitude Then follow these steps to calibrate Leveled Sine Wave amplitude 1 Connect the N to BNC cable to the Calibrator Mainframe s CHAN 1 connector Connect the other end of the N to BNC cable to the 50 Q feedthrough termination then to the 5790A INPUT 2 using the BNC f to Double Banana adapter Refer to Figure 3 3 for the proper equipment connections 2 Set the 5790A to AUTORANGE digital filter mode to FAST restart fine and Hi Res on Press the GO ON blue softkey 4 Press to activate operating mode on the Calibrator Mainframe Allow the 5790A rms reading to stabilize Multiply the 5790A reading by 0 5 50 Rload Rload where Rload the actual feedthrough termination resistance to correct for the resistance error Enter the corrected rms reading via the Calibrator Mainframe front panel keypad then press ENTER 3 13 5820A Service Manual Note The Ca
80. at is in good condition Refer power cord and connector changes to qualified service personnel DO NOT OPERATE IN EXPLOSIVE ATMOSPHERES To avoid explosion do not operate the Calibrator in an atmosphere of explosive gas CHECK INSULATION RATINGS Verify that the voltage applied to the unit under test does not exceed the insulation rating of the UUT and the interconnecting cables DO NOT REMOVE COVER DURING OPERATION To avoid personal injury or death do not remove the Calibrator cover without first removing the power source connected to the rear panel Do not operate the Calibrator without the cover properly installed Normal calibration is accomplished with the cover closed Access procedures and the warnings for such procedures are contained in the Service Manual Service procedures are for qualified service personnel only DO NOT ATTEMPT TO OPERATE IF PROTECTION MAY BE IMPAIRED If the Calibrator appears damaged or operates abnormally protection may be impaired Do not attempt to operate the Calibrator under these conditions Refer all questions of proper Calibrator operation to qualified service personnel Chapter Table of Contents Title Introduction and Specifications ccsseeeeeeeessseeeeeeeeeseeneeeeeeeeeeees 1 1 IntrOductiON Em 1 2 How to Contact Fl ke 2 cades taces irren dendo ede 1 3 Instruction Manuals eese nennen nennen 1 4 5820A Operators Manual s
81. ation to the end of the N to BNC cable 2 Program the Calibrator Mainframe output for 5 000 V dc OUT VAL blue softkey and time limit 60 s T LIMIT blue softkey 3 Press ggy on the Calibrator Mainframe to activate the output and verify that the OPR display timer increments 3 58 Calibration and Verification Hardware Adjustments 3 4 Remove the 50 Q feedthrough termination before 60 seconds and verify that Calibrator Mainframe goes to STBY Reconnect the 50 Q feedthrough termination to the end of the N to BNC cable 6 Program the Calibrator Mainframe output for 5 000 V AC OUT VAL blue softkey 7 Press gy on the Calibrator Mainframe to activate the output and verify that the OPR display timer increments 8 Remove the 50 Q feedthrough termination before 60 seconds and verify that Calibrator Mainframe goes to STBY 3 61 Hardware Adjustments Hardware adjustments must be made to the leveled sine and edge functions each time the 5820A is repaired In addition to the adjustment procedures this section provides lists of the required equipment and some recommendations on models that have the capabilities required by these procedures Equivalent models can be substituted if necessary 3 62 Equipment Required The following equipment is necessary for performing the hardware adjustments described in this section The models listed are recommended for providing accurate results e Standard adjustment tool f
82. ave Frequency Characteristics 1 Year Absolute Uncertainty tcal 5 C 0 33 ppm of setting Typical Aberration from 50 of leading trailing edge lt 0 5 of output 100 uV 25 mV to 130 V within 4 us 10 mV to 25 mV within 8 us 1 mV to 10 mV within 14 us 1 Positive or negative zero referenced square wave 2 Above 1 kHz 0 25 of output 40 pu V Assumes connectors and cables are in good condition A Caution Input voltages exceeding 30 V dc may cause damage to the instrument 1 9 DC Volt Measure Specifications Table 1 3 DC Volt Measure Specifications Voltage Range Voltage Accuracy DCV 10 V maximum with 1 mV resolution 0 to 5 99 V 0 05 1 mV 6 to 10V 0 25 10 mV 1 MO input resistor gt 1 MQ input impedance measure voltage across Introduction and Specifications General Specifications 1 1 10 Edge Specifications Note The GHz Option offers a Fast Edge function The specifications for the Fast Edge function can be found in Chapter 5 Table 1 4 Edge Specifications Edge Characteristics into 50 O Load 1 Year Absolute Uncertainty tcal 5 C Rise Time lt 300 ps 0 100 ps Amplitude Range p p 4 0 mV to 2 5 V 2 of output 200 uV Resolution 4 digits Adjustment Range 10 around each sequence value indicated below Sequence Values 5 mV 10 mV 25 mV 50 mV 60 mV 80 mV 100 mV 200 mV 250 mV 300 mV 500 mV
83. ble 5 3 Time Marker Specifications Time Marker into 50 Q 2ns to 500 ps Wave Shape sine Typical Output Level gt 1V p p Typical Jitter p p lt 1 ppm Sequence 5 2 1 from 5 s to 2 ns e g 500 ms 200 ms 100 ms Period Resolution 4 digits 1 Year Absolute Uncertainty tcal 5 C 0 33 ppm 5 8 Theory of Operation The GHz Module consists of two portions the A93 Main Board and the A92 Piggy Board A93 contains the power supply filtering and all of the control circuitry used to control the module This board contains the high frequency VCO used to generate leveled sine signals to 2 1 GHz The main board also routes the signals from A55 to A92 Refer to Figure 5 1 for a block diagram of the GHz Module A 10 MHz reference clock is provided by the A55 module from its internal crystal external reference circuit The reference clock is routed through the mother board to the VCO circuit on main Harmonics from the synthesized VCO circuit are removed by a switched filter system A92 contains the high frequency attenuator switching relays the fast edge circuit the leveled sine power amplifier and all of the high frequency connectors The attenuator switching relays replace the A90 board used on A55 In fact when the GHz module is installed A90 is replaced with the A91 board The A91 contains the 300 ps edge circuitry but does not provide any attenuation The fast edge circuit uses a tunnel diode to generate a 150 ps 250 mV squa
84. cation Channels 1 2 and 5 5 5 Fast Edge Rise Time for Channels 1 2 and 5 sese Leveled Sine Wave Harmonics Verification Channels 1 2 and 5 GHz Leveled Sinewave Verification Flatness Channels 1 2 and 5 Leveled Sine Flatness 5 5 V Channel 2 sss Leveled Sine Flatness 5 5 V Channel 3 0 Leveled Sine Flatness 5 5 V Channel 4 1 Leveled Sine Flatness 5 5 V Channel 5 ccccccsscccsssecesssceesseseeeeeecssseeeesseeesees 2 Puls Width iie pete Eee Eee ee teen lees eter eres bye VER 3 Edge Rise Time Channel 2 esses eene nnnt enn 4 Edg Rise Time Channel 3 ertet repr teret ete gH Eee uni te ER REI ene YR 5 Edge Rise Time Channel 4 sess enne 6 Edge Rise Time Channel 5 iter tetto Roten HERE HERR YER IRE d Pule SKeW ciar naa ors tese ciet tese senso ded edu scat speres del Dev ben TTE UM EVER EET Ee PED EY RR dS 5 18 Levsine Amplitude iiss iae iet earn eerie eee en lere Pe a Heel e Ended ee 25 19 DC Voltage 1 MO enar eret em ae ad nene OEA eda oe nona REECE DRIN 5 20 AC Voltage CMO iiit Eno t ee etre NE E Cep AER SEEN Events 2 21 Edge Amphtude eee tette thee totes era ee Potato eria 5 22 Levsme Amplitude cerei re ot itp eni ere ede Yap e HER et He Rd Rc ede 25 23 DC Voltage T MO deron tenete aee erento eti eet en ae E NE E Ea T ee 25 24 AC Voltage
85. cccceseeeseeeneeenseeeeceecssecseeceseenteeeeenes 3 28 AC Voltage Amplitude Verification 3 29 Verification at 1 MO enne 3 30 Verification at SO Ouais iere EE RU Ea etre toes 3 3 AC Voltage Frequency Verification eee 3 32 DC Measurement Verification eese 3 33 Current Verification sesssssssessseeeeeeeeene innen enne nennen 3 34 DC Current Verification cece ceeceeeceseceeeeeeeeeeseeeseeeaeeeaeenaes 3 35 AC Current Verification esses rennen 3 36 Edge Amplitude Verification esee 3 37 Edge Frequency Verification 3 38 Edge Duty Cycle Verification eee 3 39 Edge Rise Time Verification 3 40 Edge Aberr tions niit ign ense rea ete Enc ieS Contents continued 3 41 Tunnel Diode Pulser Drive Amplitude Verification 3 42 Leveled Sine Wave Amplitude Verification sss 3 43 MHz Leveled Sine Wave Flatness Verification 3 44 Equipment Setup for Low Frequency Flatness 3 45 Equipment Setup for High Frequency Flatness 3 46 Low Frequency Verification sese 3 47 High Frequency Verification esee 3 48 600 MHz Leveled Sine Harmonic Verification 3 49 Time Marker Verification sessesssssssseseeeneeen nennen 3 50 Wave Generator Verification
86. ce Verification Calibrator Calibrator Mainframe Nominal Mainframe Actual MeasZ Resistance Resistance Resistance Range Value Reading Value Tolerance res 50 Q 40 Q 0 04 Q res 50 Q 50 0 0 05 Q res 50 Q 60 Q 0 06 Q res 1 MQ 600 kQ 600 Q res 1 MQ 1 MQ 1 kQ res 1 MQ 1 5 M 1 5 kQ 3 59 MeasZ Capacitance Verification The MeasZ capacitance function is verified by measuring capacitors of known values The measurement value is then compared to the capacitor actual value The capacitors must make a solid connection to a BNC f to enable a connection to the end of the N to BNC cable supplied with the Scope Calibrator Due to the small capacitance values care must be taken to know the actual capacitance at this BNC f connector The capacitance values must be determined at a 10 MHz oscillator frequency Fluke uses an HP 4192A Impedance Analyzer at 10 MHz to determine the actual capacitance values This procedure uses the following equipment e Adapters and capacitors to achieve 5 pF 29 pF 49 pF nominal values at the end of BNC f connector e Nto BNC cable supplied with the Scope Calibrator Set the Calibrator Mainframe to the MeasZ menu Follow these steps to verify the MeasZ capacitance function 1 Set the Calibrator Mainframe MeasZ capacitance range to cap The blue softkey under MEASURE toggles the MeasZ ranges 2 Connect the N to BNC cable to the Calibrator Mainframe CHAN 1 connector but do not connect any thi
87. cifications Time Marker Specifications essen Theory of Operation ndi e e eH etre Pier Pete poco eee Fast Edge Adjustment for the GHz Module GHz Leveled Sine Wave Frequency Verification GHz Leveled Sine Wave Harmonics Verification Verification Tables Lee etre ree Certi Ee Ca HL ea Verification Tables for Channels 2 5 see Leveled Sine Flatness lt 600 MHZ eese JU Se Width Edge Rise Time Verification Channels 2 5 sss IPUISE SKC n Ei Channel 2 DMM Input eese enne nennen Channel 3 DMM Input sese Channel 4 DMM Input 1i irdesat etes rete edite in eie a cede Channel 5 DMM Input essere ener Capacitance E aaia 5820A Service Manual 5 2 Options 5 Introduction 5 1 Introduction The following describes additional options to the standard 5820A Calibrator 5 2 5820A 5 Option The 5820A 5 option allows you to calibrate up to five oscilloscope channels simultaneously without changing cables This allows you to perform fast automated calibrations with documented procedures and results while freeing the operator to complete other work All signals except for current are routed through this switch system This option is discussed throughout the manual where appropriate The specifications for 5820A calibrators
88. cord each reading as indicated in Table 3 14 Table 3 14 Edge Amplification Verification Calibrator o D Peakee Mainframe Edge HP 3458A Topline Baseline Peak to Peak x Tolerance Output Range Reading Reading Peak Correction V 100 mV 1 kHz 100 mV dc 0 0022 1 00V 1 kHz 1 Vdc 0 0202 5 mV 10 kHz 100 mV dc 0 0003 10 mV 10 kHz 100 mV dc 0 0004 25 mV 10 kHz 100 mV dc 0 0007 50 mV 10 kHz 100 mV dc 0 0012 100 mV 10 kHz 1 Vdc 0 0022 500 mV 10 kHz 1Vadc 0 0102 1 00 V 10 kHz 1Vadc 0 0202 2 5 V 10 kHz 10V dc 0 0502 3 37 Edge Frequency Verification This procedure uses the following equipment e PM 6680 Frequency Counter with an ovenized timebase Option PM 9690 or PM 9691 e Nto BNC cable supplied with the Scope Calibrator Calibration and Verification 3 Verification Set the Calibrator Mainframe to the Edge menu Press on the Calibrator Mainframe to activate the output Then follow these steps to verify Edge frequency 1 Set the PM 6680 s FUNCTION to measure frequency on channel A with auto trigger measurement time set to 1 second or longer 50 Q impedance and filter off 2 Using the N to BNC cable connect the CHAN 1 connector on the Calibrator Mainframe to PM 6680 channel A 3 Program the Calibrator Mainframe to output 2 5 V at each frequency listed in Table 3 15 4 Allow the PM 6680 readi
89. cseceseeenaeeseeenaes 1 26 Current Output Specifications sese Theory of Operation c 2 1 lining olo Lites HOM MAARE EE encsstee 2 2 Voltage Mode EE 2 3 Edge Mode etre E E EE E EROE 2 4 Leveled Sine Wave Mode senem ene 2 5 Time Marker Mode erect eet teh gon ttp ere i oda 5820A Service Manual 2 6 Wave Generator Mode esses nennen 2 7 P ls Generator E 2 8 Input DC Voltage Measurement Mode sees 2 9 Input Impedance Mode Resistance eee 2 10 Input Impedance Mode Capacitance eene 2 11 Current Module i eee herr eoo ete ener no esae ees tetas agas 2 12 Overload Mode rtr rre err E ERES sauce AE ERA SEE PETRGS 2 13 fishes 2 14 High Frequency Switching eese 2 15 5 Channel OpUOHD iot inter tant roa etae oto ree catt eb itae 2 16 GHz Option Module eese ener 3 Calibration and Verification ceeeeeeeeeeereeeennnnnnnne 3 ionem Sa 3 2 Equipment Required for Calibration and Verification 3 3 Calibration Setup ot csceissccseseieedevsisasceveuceecovevenecoeestea PLE ein aii 3 4 Calibration and Verification of Square Wave Voltage Functions 3 5 Overview of HP3458A Operation seseseeeee
90. current are routed through this switch system GHz Option Module The GHz option extends leveled sine from 600 MHz to 2 1 GHz and adds a 150 ps 250 mV fast edge signal For more information on the GHz Option Module see the Options Chapter 2 9 5820A Service Manual Chapter 3 Calibration and Verification Introductio Mnrusa odode Equipment Required for Calibration and Verification Calibration Setup cessioni eisten iaaii isigi oaie Calibration and Verification of Square Wave Voltage Functions Overview of HP3458A Operation sess 3 6 Setup for Scope Calibrator Voltage Square Wave Measurements Setup for Scope Calibrator Edge and Wave Gen Square Wave MIeasurerenits neret eee Ie tele DO Ee ERRER DC Voltage Calibration esee ener enne AC Voltage Calibration esee eren DC Measurement Calibration essent entere Current CalibratiOn oci a DC Current Calibration eeessssseseeeeeeeeeee nennen enne AC Current Calibrati f 1 eee reine eterni aene eei repeto Wave Generator Calibration eere Edge Amplitude Calibration eere Leveled Sine Wave Amplitude Calibration sses Leveled Sine Wave Flatness Calibration eees Low Frequency Calibration
91. cy Switching eene 5 Channel Options scsAssisscsctets GHz Option Module d ne dace eee era e erac da 2 1 5820A Service Manual 2 2 Theory of Operation 2 Introduction Introduction The following discussion provides a brief overview of the following 5820A operating modes Voltage Edge Leveled sine wave Time marker Wave generator Video Pulse generator Input impedance Overload Current 5 Channel Option DC Volts Measure GHz Option 2 1 GHz Leveled Sine and Fast Edge This discussion will allow you to identify which of the main plug in boards of the Calibrator Mainframe are defective Figure 2 1 shows a block diagram of the 5820A Note that while ac power is filtered on the A3 Mother Board most supply voltages are derived on the A80 Voltage Board The components in the scope module are shown in Figure 2 2 A signal diagram is shown in Figure 2 3 The scope module consists of the following The A55 Main Scope Board which generates leveled sine marker capacitance measurement and trigger The A51 Voltage Video Board which generates precision dc and ac low frequency square wave video overload measurement and resistance measurement The A90 Attenuator Edge Attenuator which attenuates the signal by 0 to 48 dB and generates the 300 ps edge The A52 Pulse Board which generates pulse generator signals 2 3 5820A Service Manual Mother Board A03
92. dcvh 0 001 0 00002525 5 dcvh 130 0 032525 5 dcvh 130 0 032525 Table 5 32 AC Voltage 1 MQ Measured Spec Channel Function Measurement Amplitude Frequency Value Deviation Vp p 5 acvh offset 0 001 1000 0 0000425 5 acvh amplitude 0 001 1000 0 0000055 5 acvh topline 0 001 1000 0 000105 aberration 5 acvh baseline 0 001 1000 0 000105 aberration 5 acvh offset 0 001 1000 0 0000425 5 acvh amplitude 0 001 1000 0 0000055 5 acvh topline 0 001 1000 0 000105 aberration 5 acvh baseline 0 001 1000 0 000105 aberration 5 acvh offset 130 1000 0 32504 5 acvh amplitude 130 1000 0 065005 5 acvh topline 130 1000 0 6501 aberration 5 acvh baseline 130 1000 0 6501 aberration 5 acvh offset 130 1000 0 32504 5 acvh amplitude 130 1000 0 065005 5 acvh topline 130 1000 0 6501 aberration 5 acvh baseline 130 1000 0 6501 aberration 5 29 5820A Service Manual 5 30 Table 5 33 Edge Amplitude Measured Spec Channel Measurement Amplitude Frequency Value Deviation Vp p 5 edge amplitude 2 5 10 kHz 0 0502 5 edge topline 2 5 10 kHz 0 0145 aberration 5 22 Capacitance Table 5 34 Capacitance Channels 2 5 Measured Channel Function Measurement Value Value Deviation Cap F 2 measz capacitance 1 30E 11 1 15E 12 3
93. de Frequency Value Deviation Vp p 4 acvh offset 0 001 1000 0 0000425 4 acvh amplitude 0 001 1000 0 0000055 4 acvh topline 0 001 1000 0 000105 aberration 4 acvh baseline 0 001 1000 0 000105 aberration 4 acvh offset 0 001 1000 0 0000425 4 acvh amplitude 0 001 1000 0 0000055 4 acvh topline 0 001 1000 0 000105 aberration 4 acvh baseline 0 001 1000 0 000105 aberration 4 acvh offset 6V 1000 0 32504 4 acvh amplitude 6V 1000 0 065005 4 acvh topline 6V 1000 0 6501 aberration 4 acvh baseline 6V 1000 0 6501 aberration 4 acvh offset 6V 1000 0 32504 4 acvh amplitude 6V 1000 0 065005 4 acvh topline 6V 1000 0 6501 aberration 4 acvh baseline 6V 1000 0 6501 aberration 5 28 Options Verification Tables for Channels 2 5 Table 5 29 Edge Amplitude Measured Spec Channel Function Measurement Amplitude Frequency Value Deviation Vp p edge amplitude 2 5 10 kHz 0 0502 4 edge topline aberr 2 5 10 kHz 0 0145 15 ns 5 21 Channel 5 DMM Input Table 5 30 Levsine Amplitude Spec Channel Function Measurement Amplitude Frequency Measured Value Deviation Vp p 5 levsine amplitude 5 5 50000 0 1103 Table 5 31 DC Voltage 1 MQ Measured Channel Function Amplitude Value Deviation Spec V 5 dcvh 0 0 000025 5 devh 0 001 0 00002525 5
94. e 6 5 Single Channel Without GHz Option List of Replaceable Parts Reference Description Qty Fluke Stock Number Designator A54MP2 ADAPTER COAX SMA F SMA M SMA F 1 688710 TEE A54MP8 CABLE SMA RT TO RT 2 659968 A54MP13 A54W2 4 CABLE SMA ST TO RT 3 626025 A54W6 CABLE TRIGGER 5 CHANNEL 1 926009 A5AWO9 12 CABLE SMA ST TORT 4 626017 A56MP9 AUX CABLE SMA RT RT 1 647104 A99MP6 CABLE CURRENT LOOP 1 673092 A99A99 PCA LOOP GHZ 1 661667 Replaceable Parts 6 List of Replacement Parts GHZ SINGLE CHANNEL WITHOUT om OUT lt L CE lt L C3 Ed m i2 NWHT BLU JO WHT BRN SEE SECTION A A SHEET J SEE DETAIL A WAT BLU ATTACHMENT OF WIRES FROM TRANSFORMER SHOWN CLEAR OF FORM WIRES AS POWER SWITCH MODIFICATION OF ROUTING WIRES ON FILTER J8 4405 lt MP8 MP13 NN T Figure 6 1 5820A Final Assembly Sheet 6 of 9 yu176f eps Final Assembly cont 6 13 5820A Service Manual GHZ
95. e Edge and Wave Generator functions See Table 3 2 Refer to Figure 3 2 for the proper equipment connections Table 3 3 Edge and Wave Generator HP3458A Settings HP 3458A Settings Input Frequency NPLC DELAY topline DELAY baseline 1 kHz 01 0002 s 0007 s 10 kHz 001 00002 s 00007 s 3 8 Calibration and Verification 3 DC Voltage Calibration HP 3458A 5820A Cable 5820A L A Neu T a rece Oro 50 Q Feedthrough Termination Double Banana TOOR Adapter x EXTTRIG CHANS amwek ECV PK Mx PAX yu055f eps Figure 3 2 Setup for Scope Calibrator Edge and Wave Gen Square Wave Measurements For all measurements the HP 3458A is in DCV manual ranging with level triggering enabled A convenient method to make these measurements from the HP 3458A s front panel is to program these settings into several of the user defined keys on its front panel For example to make topline measurements at 1 kHz you would set the DMM to NPLC 01 LEVEL 1 DELAY 0002 TRIG LEVEL To find the average of multiple readings you can program one of the keys to MATH OFF MATH STAT and then use the RMATH MEAN function to recall the average or mean value 3 8 DC Voltage Calibration This procedure uses the following equipment e Hewlett Packard 3458A Digital Multimeter e BNC f to Double Banana adapter e Nto BNC cable supplied with the Scope Calibrator Note Calibra
96. eaning ioris III ie tus Ee dette ti ERE EH ne Er ai 4 5 Service Information eee eceete etre e rette etd eterne eterne tet eria nono sh m C 5 Isotope m 5 2 5820A 5 ODpUOn cete ee ope erret ee dri Dite ee ER R EA 5 3 rdubuul E 5 4 GHz Option Specifications ee essecsseceseceseceeceeeeeeeeseeeseeseneesaes 5 5 Fast Edge Specifications eee 5 6 Leveled Sine Wave gt 600 MHz Specifications 5 7 Time Marker Specifications seseseseeseesseseeesesseesseseresesseessesecesessees 5 8 Theory of Op ratioh oreet t e erem cr Ere iereg 5 0 Fast Edge Adjustment for the GHz Module 5 10 GHz Leveled Sine Wave Frequency Verification 5 11 GHz Leveled Sine Wave Harmonics Verification 5 12 Verification Tables oco sstaneveaconade cdvnnesuassvecedasaadenedssendeas 5 13 Verification Tables for Channels 2 5 sse 5 14 Leveled Sine Flatness lt 600 MHZ eese 5 15 PUISE Width 5 16 Edge Rise Time Verification Channels 2 5 sss iii 5820A Service Manual 5 17 Pulse SKEW aciei tbi no RERO top ER Bee ied 5 18 Channel 2 DMM Input 5 19 Channel 3 DMM Input 5 20 Channel 4 DMM Input 5 21 Channel 5 DMM Input 5 22 Capacitam
97. ear Spec s s s s 5 14 x 10 2 2 5 x 10 0 05 1 4 x 107 0 02 2 0 x 10 0 01 1 0 x 10 1 0x 10 1 0 x 10 50x10 5 0 x 10 3 5x 10 3 5 x 10 20x1 2 0 x 10 10x10 1 0 x 10 50x10 5 0 x 10 20x10 2 0 x 10 3 49 5820A Service Manual 3 50 3 50 Wave Generator Verification This procedure uses the following equipment 5790A AC Measurement Standard BNC f to Double Banana adapter 50 Q feedthrough termination N to BNC cable supplied with the Calibrator Mainframe See Figure 3 8 for the proper equipment connections BNC F to 50 Q Double Banana Feed Through 7 CHAN3 MAX CHAN4 0 0 Kj l siis AUX EXT TRIG CI O z SOURCE MEASURE CHAN 1 HAN 5 Adapter Termination yu060f eps Figure 3 8 Setup for Wave Generator Function Set the Calibrator Mainframe to the Wavegen menu Press on the Calibrator Mainframe to activate the output Set the offset to 0 mV and the frequency to 1 kHz Then follow these steps to verify the wave generator function 3 51 Verification at 1 MQ Set the Calibrator Mainframe impedance to 1 MQ The blue softkey under SCOPE Z toggles the impedance between 50 Q and 1 MQ 1 Connect the N to BNC cable to the Calibrator Mainframe s CHAN 1 connector Connect the other end of the N to BNC cable to the 5790A INPUT 2 using the BNC f to Double Banana adapter Set the 5790A to AUTOR
98. ed Sine Wave Flatness Verification s 3 44 Equipment Setup for Low Frequency Flatness 3 45 Equipment Setup for High Frequency Flatness 3 46 Low Frequency Verification eese 3 47 High Frequency Verification eee 3 48 600 MHz Leveled Sine Harmonic Verification 3 49 Time Marker Verification 0 cccccecssceececeeseeceenceceeeeeesnaeceeaeeeeeaees 3 50 Wave Generator Verification eessssssssseseeeeeeeeenener enne 3 51 Verification at 1 MO 3 52 Verification at 50 ST 3 53 Pulse Width Verification sess 3 54 Pulse Skew Calibration and Verification esses 3 55 Cali DP att OD ERN 3 56 NV CLIP CAM ON ai ssssatcscacessanecsatee snnaycenssasuadenuns E E 3 57 Pulse Period Verification essere 3 58 MeasZ Resistance Verification cceeceessecceeneeceeeeeeeneceenneeeesees 3 50 MeasZ Capacitance Verification eese 3 60 Overload Function Verification sss 3 61 Hardware Adjustments sees eene enn 3 62 Bquipment Required reet etis Pert tct iere t 3 63 Adjusting the Leveled Sine Wave Function uses 3 64 Equipment SetUp e acces reete Fete rene ete e bn tnr et eoa eua 3 65 Adjusting the Leveled Sine Wave VCO Balance 3 66 Adjusting the Leveled Sine Wave Harmonics
99. ee 3 6 3 6 Setup for Scope Calibrator Voltage Square Wave Measurements 3 7 Setup for Scope Calibrator Edge and Wave Gen Square Wave Me as rementS is ederet ente torno ree Ee nee erae ete tone ere ge iuiar egal 3 8 DC Voltage Calibration sconces 3 0 AC Voltage Calibration eese nnne 3 10 DC Measurement Calibration ieee ceseceseceseeeeeeeseeseneeeneeeeeenaee 3 11 Current Calibration esee enne enne 3 12 DC Current Calibrati fi 3 5 3 2 rete etre err nii 3 13 AC Current Calibration eseeeeeeeeeeeeeeeen nennen 3 14 Wave Generator Calibration eese 3 15 Edge Amplitude Calibration eese 3 16 Leveled Sine Wave Amplitude Calibration sees 3 17 Leveled Sine Wave Flatness Calibration eese 3 18 Low Frequency Calibration eene 3 19 High Frequency Calibration eese 3 20 Pulse Width Calibration eee 3 21 MeasZ Calibration 0 0 0 ccecccecsccceesecsecceeseeeesaeceeaeeceeeeeesaeeeeaaecseaeeenaees 3 22 Leveled Sine Wave Flatness Calibration GHz Option 3 23 5820A 5 ODIO eren teens tenore teinte ta Idee phe i Fe eo ee Ene she ane Sp MAUI E 3 25 DC Voltage Verification esee 3 26 Verification at T MO iiie epi rete yere tenere tus 3 27 Verification at 50 Ooo cccc
100. eeeeeeeeeeeeeen 1 5 5820A Service Manual eese 1 6 Specifica ons eiae ae ERR C HUI a reseed EET E HERR CH EE ER e SETS EL eode 1 7 General Specifications eese 1 8 Volt Specifications rire eet decer ete pre died onera 1 9 DC Volt Measure Specifications cee ceecesseceseceseecnseenseceaeenaees 1 10 Edge Specifications wisiciiseseisddsued sttevesieceessaecocvveen cotesacesvevesstelieassaneces 1 11 Leveled Sine Wave Specifications eee 1 12 Time Marker Specifications essen 1 13 Wave Generator Specifications 1 14 1 ns Pulse Generator Specifications eeeeeee 1 15 Trigger Signal Specifications Pulse Function 1 16 Trigger Signal Specifications Time Marker Function 1 17 Trigger Signal Specifications Edge Function 1 18 Trigger Signal Specifications Square Wave Voltage Function 1 19 Trigger Signal Specifications TV eee 1 20 Tunnel Diode Drive Capability eene 1 21 Oscilloscope Input Resistance Measurement Specifications 1 22 Oscilloscope Input Capacitance Measurement Specifications 1 23 Overload Measurement Specifications esee 1 24 External Reference Input Specifications ees 1 25 Auxiliary Input Specifications ceseesseceseeense
101. eeeeeeeeeeeenenenn High Frequency Calibration eese Pulse Width Calibration essen MeasZ Calibration 5 erento erento Hr nnne Foe rue cere des ss Leveled Sine Wave Flatness Calibration GHz Option ShPIDESNO SERENO Beim M DC Voltage Verification eeseesesseeseeeeeeeneene nennen Verification at 1 MO enne Verification at 50 ui eed ies ee erede AC Voltage Amplitude Verification eene Verification at 1 MX eser iei tere lesa era rds Verification at 50 2 iue e riter ten rr e een ee er eni s AC Voltage Frequency Verification eeeeeeeeee DC Measurement Verification sssssseseseeeeeeeen ener Current VertfICatlOni cnet eter eere ete e tH erede terne iare cn DC Current Verification sssssssseeseeeeeee eene 5820A Service Manual 3 35 AC Current Verification essere eene 3 36 Edge Amplitude Verification seen 3 37 Edge Frequency Verification seesesseseeeeeeeeeen nee 3 38 Edge Duty Cycle Verification eessseseeeeeenerens 3 30 Edge Rise Time Verification sess 3 40 Edge Aberratiotis cerent entre eh etna ene ohio teeth nene 3 41 Tunnel Diode Pulser Drive Amplitude Verification 3 42 Leveled Sine Wave Amplitude Verification sss 3 43 MHz Level
102. els 1 2 and 5 cont Calibrator x Mainframe Freq A B C D E Calibrator Mainframe MHz 10 MHz Flatness Spec 96 2 025 000 000 6 0 2 075 000 000 60 0 250 Vpp 625 000 000 50 725 000 000 50 900 000 000 50 1 125 000 000 50 1 250 000 000 50 1 325 000 000 50 1 375 000 000 50 1 425 000 000 50 1 475 000 000 50 1 525 000 000 50 1 575 000 000 50 1 650 000 000 60 1 750 000 000 60 1 850 000 000 60 1 925 000 000 60 1 975 000 000 60 2 025 000 000 60 2 075 000 000 60 0 100 Vpp 625 000 000 54 725 000 000 51 900 000 000 54 1 125 000 000 54 1 250 000 000 54 1 325 000 000 54 1 375 000 000 54 1 425 000 000 54 1 475 000 000 54 1 525 000 000 54 5 17 5820A Service Manual Table 5 7 Leveled Sinewave Verification Flatness Channels 1 2 and 5 cont Calibrator Mainframe Freq A B E Calibrator Mainframe MHz 10 MHz Flatness Spec 1 575 000 000 54 1 650 000 000 64 1 750 000 000 61 1 850 000 000 61 1 925 000 000 61 1 975 000 00
103. ement Specifications 1 17 Overload Measurement Specifications eeeseeeeeeeneeeeeeenn 1 18 Auxiliary Input Performance eseeeseeseeeseeeeeee enne enne rennen nennen nenne 1 19 Current Output Specifications neret 3 1 Scope Calibrator Calibration and Verification Equipment esse 3 2 Voltage HP3458A Settings sese nennen nter 3 3 Edge and Wave Generator HP3458A Settings esee 3 4 Verification Methods for Scope Calibrator Functions eese 3 9 DC Voltage Verification uen een Hee eese Ere ale ete ewe des la eee does 3 6 DC Voltage Verification at 50 2 nennen enne 3 7 AC Voltage Amplitude Verification 0 0 eee cescesecesecesecsseeeseeeeeeeeseeeseeeaeeeaeenaees 3 8 AC Voltage Verification at 50Q sess rennen enne 3 9 AC Voltage Frequency Verification 0 eee eecssecsseceseceseceseceeeeeseeeeeeseneeeneeeaeeenaes 3 10 DC Voltage Measurement Verification esses 3 11 DC Voltage Verification at 1 MQ ssssssssessesseeeeneenenennee nennen enne 3 12 Edge and Wave Generator HP3458A Settings eseeeeee 3 13 AC Cutrent V erific tion uec Grsecis E eee Pg eoe e ERE pede ni a 3 14 Edge Amplification Verification enne ennemi 3 15 Edge Frequency Verification 0 eceeseeseessecssecssecssecsseesseesseeeseeseneseneeeneeeneeenaes 3 16 Edge Rise Time
104. ements for more details 3 15 Edge Amplitude Calibration This procedure uses the following equipment Hewlett Packard 3458A Digital Multimeter BNC f to Double Banana adapter N to BNC cable supplied with the Scope Calibrator 50 Q feedthrough termination Calibration and Verification Leveled Sine Wave Amplitude Calibration 3 Press the NEXT SECTION blue softkey until the display reads Set up to measure fast edge amplitude Then follow these steps to calibrate edge amplitude 1 Connect the Calibrator Mainframe s CHAN 1 connector to the HP 3458A input using the N to BNC cable and the BNC f to Double Banana 2 Set the HP 3458A to DCV NPLC 01 LEVEL 1 TRIG LEVEL and the DELAY to 0002 for measuring the upper part of the wave form i e topline and the DELAY to 0007 for measuring the lower part of the wave form i e baseline Manually lock the HP 3458A to the range that gives the most resolution for the baseline measurements Use this same range for the corresponding baseline measurements at each step Note that in the EDGE function the topline is very near 0 V and the baseline is a negative voltage 3 For each calibration step take samples for at least two seconds using the HP 3458A MATH functions to enter the average or mean value See Setup for Scope Calibrator Edge and Wave Generator Measurements for more details The true amplitude of the wave form is the difference between the topline and b
105. es that the next steps calibrate WAVEGEN Press the STORE CONSTS blue softkey to store the new calibration constants Calibration and Verification 3 DC Measurement Calibration 3 10 DC Measurement Calibration This procedure uses the following equipment e 5520A calibrator To set 5820A to the Voltage Measurement Calibration mode select the CAL MORE CAL and MEAS V CAL blue softkeys 1 Using the N to BNC cable connect the CHAN 1 connector on the Calibrator Mainframe to the Fluke 5520A Calibrator voltage binding posts using a BNC to banana connector 2 Set the Fluke 5520A Calibrator to 6 Vdc Operate Enter the actual Fluke 5520A Calibrator output 4 When prompted by the Calibrator Mainframe set the Fluke 5520A Calibrator to 6 Vdc Operate 5 Enter the actual Fluke 5520A Calibrator output The Calibrator Mainframe will display that the calibration is complete Press the STORE CONST blue softkey to store the new calibration constants 3 11 Current Calibration 3 12 3 13 These procedures use the following equipment e Hewlett Packard 3458A Digital Multimeter with cable e 10Q 100 Q and 1000 Q precision resistor assemblies Set the Calibrator Mainframe in CURRENT CAL mode Remove the front panel Current Loop using the 2 mm hex head driver and proceed with the following procedures DC Current Calibration 1 Set the DMM to measure dc current 2 Connect the DMM directly to the vacant banana jacks 3
106. essage Adjust Trigger Skew to 0 0 Follow the front panel skew calibration procedure until you see the message Connect 40 ohm Resistor At this point select Options and then Save the calibration constants Verification On the Calibrator keypad select M955 On the display press the soft key under Pulse Press the soft key under TRIG to select the TRIG 1 External Trigger output Program the Calibrator Mainframe to output 1 ns pulse width and 3 us period at 1 5 V with no skew i e the rising trigger edge against the rising pulse Press amp y Jon the Calibrator to activate the output Press the soft key under SKEW Auto set the DSO Then set the DSO to these starting values Main Time Base position initial 2 ns div Vertical scale channel 1 Pulse 200 mV div Vertical scale channel 2 Ext Trig 100 mV div Trigger source ext level 200 mV ext atten x1 slope mode auto Measurement Function none 1 Set skew 0 0 ns Verify the skew between the 30 level of the trigger and pulse edge is less than 500 ps 2 Use the values in the Table 3 27 to verify the skew specification Change the horizontal scale of the DSO as needed Record the skew measurement made and compare to the tolerance column of Table 3 27 Continue through the values in the table recording results Table 3 27 Pulse Skew Measured Measurement Skew Width Period Value Deviation Spec s pulse skew 0 0E 09 1 0E 09 3 0E 06 500 0E 12
107. gy on the Calibrator Mainframe to activate the output 2 Change the vertical scale of the DSO to the value listed in the table Adjust the main time base position and vertical offset until the edge signal is centered on the display Record the rise time measurement in column A of Table 3 16 3 Correct the rise time measurement by accounting for the SD 22 26 sampling head s rise time The SD 22 26 rise time is specified as lt 28 ps Column B sqrt Column AY SD 22 26 rise time 4 The edge rise time measured should be less than the time indicated in Table 3 16 Calibration and Verification 3 Verification Table 3 16 Edge Rise Time Verification DSO A B Calibrator Mainframe Output Vertical Axis 11801 Corrected Voltage Frequency mV div Reading Reading Tolerance 250 mV 1 kHz 20 0 lt 300 ps 250 mV 1 MHz 20 0 lt 300 ps 250 mV 10 MHz 20 0 lt 350 ps 500 mV 1 kHz 50 0 lt 300 ps 500 mV 1 MHz 50 0 lt 300 ps 500 mV 10 MHz 50 0 lt 350 ps 1V 1 kHz 100 0 300 ps 1V 1 MHz 100 0 300 ps 1V 10 MHz 100 0 350 ps 2 5 V 1 kHz 200 0 lt 300 ps 2 5 V 1 MHz 200 0 lt 300 ps 2 5 V 10 MHz 200 0 lt 350 ps 3 40 Edge Aberrations The following equipment is needed for this procedure e High Frequency Digital Storage Oscilloscope Tektronix 11801 with Tektronix SD 22 26 sampling head e N to BNC output cables provided with the Scope Calibrator 2 Before
108. he edge signal occurring between 2 ns and 10 ns to the reference level set above 5 Readjust A90R36 and A90R35 to obtain equal amplitudes for the first second and third aberrations 6 Adjust A90R13 to set the edge signal occurring between 0 ns and 2 ns to the reference point set above Center any aberrations so the peaks are equal above and below the reference level 7 Readjust A90R12 if necessary to keep the edge signal occurring between 2 ns and 10 ns at the reference level 8 Readjust A90R13 if necessary to keep the edge signal occurring between 0 ns and 2 ns at the reference level 9 Setthe UUT output to 250 mV and the oscilloscope vertical to 2 mV div Check the aberrations 10 Connect the 10 dB attenuator to the oscilloscope input Connect the UUT to the attenuator and program the UUT output to 2 5 V 11 Set the oscilloscope vertical to 5 mV div Check the aberrations 12 Check for rise time 300 ps at 250 mV 1 V and 2 5 V outputs Calibration and Verification Hardware Adjustments 3 1st Aberration 2nd Aberration 3rd Aberration Figure 3 12 Adjusting Edge Aberrations om050f eps 3 63 5820A Service Manual 3 64 4 1 4 3 4 4 4 5 Chapter 4 Maintenance Introduction E Replacing the Line Fuse Cleaning the Air Filter eese General Clean rne Er LEE a Leg Service Information sese 4 1 5820A Service Manual
109. hen enter the reading into Column A of the table 5 Enter 50 kHz into the Calibrator Mainframe Allow the 5790A reading to stabilize then enter the 5790A reading in Column B of Table 3 20 6 Repeat steps 4 and 5 for all of frequencies listed in Table 3 20 Continue until you have completed Columns A and B Calibration and Verification 3 Verification 7 When you have completed Columns A and B press to remove the Calibrator Mainframe s output Complete Table 3 20 by performing the calculations for column C Compare Column C to the specifications listed in the final column Table 3 20 Low Frequency Flatness Verification at 5 5 V Calibrator Calibrator Mainframe A B C Mainframe Flatness Frequency 50 kHz Specification 96 500 kHz 1 50 1 MHz 1 50 2 MHz 1 50 5 MHz 1 50 10 MHz 1 50 Complete Columns A C as follows A B C Enter 5790A Reading mV for the present frequency Enter 5790A Reading mV for 50 kHz Compute and enter the Calibrator Mainframe Flatness Deviation 96 100 Column A entry Column B entry Column B entry 3 47 High Frequency Verification This procedure provides an example of testing high frequency flatness using a 5 mV to 5 5 V output Follow the same procedure for testing other amplitudes only compare results against the flatness specification listed in Table 3 21 For this voltage range you will use the model HP 8482A power sensor 1 Program
110. ifications Edge Function Trigger Signal Specifications Square Wave Voltage Function Trigger Signal Specifications TV esee Tunnel Diode Drive Capability eee Oscilloscope Input Resistance Measurement Specifications Oscilloscope Input Capacitance Measurement Specifications Overload Measurement Specifications External Reference Input Specifications sess Auxiliary Input Specifications cee ceseessecsnceenseceseceeeeaecsaeeenaes Current Output Specifications 5820A Service Manual 1 2 Introduction and Specifications Introduction 1 1 Introduction The Fluke Model 5820A Oscilloscope Calibrator Figure 1 1 is a precise instrument that calibrates analog and digital oscilloscopes Specifications are provided in this chapter AA Warning To prevent electric shock or other possible injuries the 5820A Calibrator must be operated in the way specified by this manual or other documentation provided by Fluke A Caution Input voltages exceeding 30 V dc may cause damage to the instrument Do not apply voltages except in voltage measurement mode Features of the 5820A Calibrator include the following e Automatic meter error calculation and keys that change the output value to pre determined cardinal values for various functions e Programmable entry limits that prevent invalid amounts from being ente
111. igits 1 Year Absolute t 2 5 ppm 0 33 ppm 0 33 ppm 0 33 ppm 0 33 ppm Uncertainty tcal 5 C 5 uHz 2 3 1 Typical rise time of square wave and 20 pulse 20 duty cycle pulse is lt 1 5 ns 2 With 10 MHz external reference selected the uncertainty becomes that of the external clock plus 5 wHz 3 Time marker uncertainty is 50 ppm when measured off of cardinal points 5s 2s 1 s 500 ms 200 ms 100 ms 50 ms 20 ms 10 ms 5 ms 2 ms 1 ms 500 us 200 us 100us 50 us 20 us 10 us 5 us 2 us 1 us 500 ns 200 ns 100 ns 50 ns 20 ns 10 ns 5 ns and 2 ns 5820A Service Manual 1 13 Wave Generator Specifications Table 1 7 Wave Generator Specifications Wave Generator Characteristics Amplitude Square Wave and Sine Wave into 50 or 1 MQ Triangle Wave into 50 O or 1 MQ Range into 1 MO 1 8 mV to 55 V p p into 50 Q 1 8 mV to 2 5 V p p into 1 MO 1 8 mV to 55 V p p into 50 Q 1 8 mV to 2 5 V p p 1 Year Absolute Uncertainty tcal 5 C 10 Hz to 10 kHz 3 96 of p p output 100 uV 3 96 of p p output 100 uV Sequence 1 2 5 e g 10 mV 20 mV 50 mV 1 2 5 e g 10 mV 20 mV 50 mV Typical DC Offset Range 0 to 240 of p p amplitude 1 0 to 240 of p p amplitude 1 Ramp Linearity 2 better than 0 1 96 10 Hz to 10 kHz 3 Frequency Range 0 01 Hz to 100 kHz 0 01 Hz to 100 kHz Resol
112. ing equipment Hewlett Packard 3458A Digital Multimeter BNC f to Double Banana adapter 50 Q feedthrough termination N to BNC cable supplied with the Scope Calibrator N to BNC cable to connect the Calibrator Mainframe TRIG OUT to the HP 3458A Ext Trig Set the Calibrator Mainframe to the Volt menu Follow these steps to verify the ac voltage function Verification at 1 MQ For the 1 MQ verification connect the Calibrator Mainframe s CHAN 1 connector to the HP 3458A input using the cable supplied with the Calibrator Mainframe and the BNC f to Double Banana adapter Connect the Calibrator Mainframe TRIG OUT connector to the HP 3458A Ext Trig connector located on the rear of that instrument Make sure the Calibrator Mainframe impedance is set to 1 MQ The blue softkey under Output toggles the impedance between 50 Q and 1 MQ 1 When making measurements at 1 kHz set the HP 3458A to DCV NPLC 01 TRIG EXT and the DELAY to 0007 for measuring the topline of the wave form and the DELAY to 0012 for measuring the baseline of the wave form Manually lock the HP 3458A to the range that gives the most resolution for the topline measurements Use this same range for the corresponding baseline measurements at each step Enable the Calibrator Mainframe external trigger by toggling the blue softkey under TRIG to 1 Measure the topline first as indicated in Table 3 7 For each measurement take samples for at least two seconds us
113. ing head e 3B attenuator 3 5 mm m f 5820A Service Manual 3 32 BNC f to 3 5 mm m adapter 2 e Nto BNC cable supplied with the Scope Calibrator e second N to BNC cable Connect the N to BNC cable supplied with the Scope Calibrator to the Calibrator Mainframe s CHAN 1 connector Connect the other end of the N to BNC cable to one BNC f to 3 5 mm m adapter then to the DSO s sampling head through the 3 dB attenuator Refer to Figure 3 6 for the proper equipment connections Using the second BNC f to 3 5 mm m adapter and N to BNC cable connect the Calibrator Mainframe s EXT TRIG channel 5 connector to the 11801 s Trigger Input Tek 11801 With 5D26 Sampling Head 3 dB Attenaator 3 5 mm m f OW SOURCE MEASURE EXT TRIG CHAN 1 CHAN2 z CHAN2 130V l E m BNC F to 3 5 mm m Adapter yu058f eps Figure 3 6 Setup for Edge Rise Time Verification The Calibrator Mainframe should have the Edge menu on the display Press on the Calibrator Mainframe to activate the output Press the softkey under TRIG to select the TRIG 1 External Trigger output Program the Calibrator Mainframe to output 250 mV 1 kHz Set the DSO to these parameters Digital Storage Oscilloscope Setup Main Time Base position initial 40 ns Horizontal scale 500 ps div Measurement Function Rise Time 1 Program the Calibrator Mainframe to output the voltage and frequency listed in Table 3 16 Press
114. ing the HP 3458A MATH functions to determine the average or mean value Measure the baseline of each output after the corresponding topline measurement as indicated in Table 3 7 The peak to peak value is the difference between the topline and baseline measurements Compare the result to the tolerance column When making measurements at the other frequencies set up the HP 3458A NPLC and topline and baseline DELAY per Table 3 2 3 23 5820A Service Manual 3 24 Table 3 7 AC Voltage Amplitude Verification Into 1 MQ Impedance Unless Noted Nominal Value Frequency Measured Value Deviation 1 year Spec V p p Hz V p p V p p V p p 3 30 Verification at 50 Q For the 50 Q verification connect the Calibrator Mainframe s CHAN 1 connector to the HP 3458A input using the cable supplied with the Calibrator Mainframe the external 50 O termination and the BNC f to Double Banana adapter The 50 O termination is closest to the HP 3458A input Connect the Calibrator Mainframe TRIG OUT connector to the HP 3458A Ext Trig connector located on the rear of that instrument Make sure the Calibrator Mainframe impedance is set to 50 Q The blue softkey under Output toggles the impedance between 50 Q and 1 MQ Proceed with the following steps 1 Set the HP 3458A to DCV NPLC 01 TRIG EXT and the DELAY to 0007 for measuring the topline of the wave form and the DELAY to 0012 for measuring the baseline of the wave
115. lf testing and diagnostics of analog and digital functions How to Contact Fluke USA and Canada 1 888 99 FLUKE 1 888 993 5853 Europe 31 402 675 200 Japan 81 3 3434 0181 Singapore 65 738 5655 Anywhere in the world 1 425 446 5500 For additional information about Fluke its products and services visit Fluke s web site at www fluke com Instruction Manuals The 5820A Manual Set provides complete information for operators and service or maintenance technicians The set includes e 5820A Operators Manual PN 802154 e 5820A Service Manual PN 673142 The 5820A Operators Manual ships with the instrument The 5820A Service Manual is optional Order additional copies of the manuals separately using the part number provided For ordering instructions refer to the Fluke Catalog or ask a Fluke sales representative These manuals are also available on Fluke s web site www fluke com 5820A Operators Manual The 5820A Operators Manual provides complete information for installing the 5820A Oscilloscope Calibrator and operating it from the front panel keys and in remote configurations The manual also provides a glossary of calibration specifications and error code information The 5820A Operators Manual includes the following topics e Installation e Operating controls and features including front panel operation e Remote operation IEEE 488 bus or serial port remote control Introduction and Specifications Specifica
116. librator Mainframe will warn when the entered value is out of bounds If this warning occurs recheck the setup and calculation and carefully re enter the corrected rms reading insuring proper multiplier i e m u n p If the warning still occurs repair may be necessary 6 Repeat step 5 until the Calibrator Mainframe display indicates that the next steps calibrate Leveled Sine flatness Press the STORE CONSTS blue softkey to store the new calibration constants yu034f eps Figure 3 3 Connecting the Calibrator Mainframe to the 5790A AC Measurement Standard 3 17 Leveled Sine Wave Flatness Calibration Leveled Sine Wave flatness calibration is divided into two frequency bands 50 kHz to 10 MHz low frequency and gt 10 MHz to 600 MHz high frequency The equipment setups are different for each band Flatness calibration of the low frequency band is made relative to 50 kHz Flatness calibration of the high frequency band is made relative to 10 MHz Leveled Sine Wave flatness is calibrated at multiple amplitudes Both low and high frequency bands are calibrated at each amplitude Calibration begins with the low frequency band then the high frequency
117. m u n p If the warning still occurs repair may be necessary 7 When prompted by the Calibrator Mainframe disconnect the 60 Q resistance and connect the 0 6 MQ resistance to the end of the N to BNC cable 8 Press the GO ON blue softkey 9 Enter 0 6 MQ resistance 10 When prompted by the Calibrator Mainframe disconnect the 0 6 MQ resistance and connect the 1 5 MQ resistance to the end of the N to BNC cable 11 Press the GO ON blue softkey 5820A Service Manual Note Calibrating the capacitance for the Scope Calibrator uses 4 capacitors 0 pF 5 pF 28 pF and 50 pF Starting with 0 or no input you proceed through each capacitor entering the exact value each time 12 When prompted for the first reference capacitor by the Calibrator Mainframe disconnect the 1 5 MQ resistance and leave nothing attached to the end of the N to BNC cable 13 Press the GO ON blue softkey 14 Enter 0 15 When prompted by the Calibrator Mainframe connect the 5 pF capacitor to the end of the N to BNC cable 16 Press the GO ON blue softkey 17 Enter the actual 5 pF capacitance value 18 When prompted by the Calibrator Mainframe disconnect the 5 pF capacitor and connect the 28 pF to the end of the N to BNC cable 19 Press the GO ON blue softkey 20 Enter the actual 28 pF capacitance value 21 When prompted by the Calibrator Mainframe disconnect the 28 pF capacitor and connect the 50 pF to the end of the N to BNC cable
118. measz capacitance 1 30E 11 1 15E 12 4 measz capacitance 1 30E 11 1 15E 12 5 measz capacitance 1 30E 11 1 15E 12 6 1 6 2 6 3 Introduction How to Obtain Parts List of Replacement Parts Chapter 6 Replaceable Parts 6 1 5820A Service Manual 6 2 Replaceable Parts 6 Introduction 6 7 6 2 Introduction This chapter contains a list of replaceable parts for the Fluke 5820A Oscilloscope Calibrator Parts are listed by assembly and alphabetized by reference designator Each assembly is accompanied by and illustration showing the location of each part and it s reference designator The parts lists give the following information e Reference designator e An indication if the part is subject to damage by static discharge e Description e Fluke stock number e Total quantity e Any special notes i e factory selected part A Caution A symbol indicates a device that may be damaged by static discharge How to Obtain Parts Electrical components may be ordered directly from the manufacturer by using the manufacturers part number or from the Fluke Corporation and its authorized representatives by using the part number under the heading Fluke Stock Number See Chapter 4 for Fluke contact information List of Replacement Parts The following is a list of replacement parts for the Fluke 5820A 6 3 5820A Service Manual
119. ne flatness 5 5 120000000 0 1101 2 levsine flatness 5 5 290000000 0 1101 2 levsine flatness 5 5 360000000 0 1926 2 levsine flatness 5 5 390000000 0 1926 2 levsine flatness 5 5 400000000 0 1926 2 levsine flatness 5 5 480000000 0 1926 2 levsine flatness 5 5 570000000 0 2201 2 levsine flatness 5 5 580000000 0 2201 2 levsine flatness 5 5 590000000 0 2201 2 levsine flatness 5 5 600000000 0 2201 5 21 5820A Service Manual Table 5 9 Leveled Sine Flatness 5 5 V Channel 3 Measured Spec Channel Function Measurement Amplitude Frequency Value Deviation Vp p levsine flatness 5 5 1000000 0 0826 levsine flatness 5 5 10000000 0 0826 levsine flatness 5 5 30000000 0 0826 levsine flatness 5 5 70000000 0 0826 levsine flatness 5 5 120000000 0 1101 levsine flatness 5 5 290000000 0 1101 levsine flatness 5 5 360000000 0 1926 levsine flatness 5 5 390000000 0 1926 levsine flatness 5 5 400000000 0 1926 levsine flatness 5 5 480000000 0 1926 levsine flatness 5 5 570000000 0 2201 levsine flatness 5 5 580000000 0 2201 levsine flatness 5 5 590000000 0 2201 levsine flatness 5 5 600000000 0 2201 Table 5 10 Leveled Sine Flatness 5 5 V Channel 4 ae Measured Spec Channel Function Measurement Amplitude Frequency Value Deviation Vp p 4 levsine flatness 5 5 1000000 0 0826 4 levsine flatness 5 5
120. ng equipment e Fluke 5520A Calibrator 1 Select Voltage Measurement mode 3 26 Calibration and Verification 3 Verification 2 Using the N to BNC cable connect the CHAN 1 connector on the Calibrator Mainframe to the Fluke 5520A Calibrator voltage binding posts using a BNC to banana connector Record the 5820A reading for each voltage in Table 3 10 Table 3 10 DC Voltage Measurement Verification Nominal Value 1 year Spec V dc Measured Value Deviation V p p OV 0 001 1V 0 0015 2 5V 0 00225 5V 0 0035 6 5V 0 02625 9 9V 0 03475 1V 0 0015 2 5V 0 00225 5 V 0 0035 6 5 V 0 02625 9 9 V 0 03475 3 33 3 34 Current Verification This procedure uses the following equipment Hewlett Packard 3458A Digital Multimeter with cable 1 Q 10 Q 100 Q and 1000 Q precision resistor assemblies Remove the front panel Current Loop using the 2 mm hex head driver DC Current Verification l 2 Connect the DMM directly to the vacant banana jacks on the calibrator Program the Calibrator Mainframe to output the Currents listed in Table 3 11 Press on the Calibrator Mainframe to activate the output Allow the HP 34584 reading to stabilize then record the HP 3458A reading for each current in Table 3 11 Compare result to the tolerance column 3 27 5820A Service Manual 3 28 Table 3 11 DC
121. ng to stabilize then record the PM 6680 reading for each frequency listed in Table 3 15 Compare to the tolerance column of Table 3 15 Table 3 15 Edge Frequency Verification Calibrator Mainframe Frequency PM 6680 Reading Output 2 5 V p p Frequency Tolerance 1 kHz 001 Hz 10 kHz 0 01 Hz 100 kHz 0 1 Hz 1 MHz 1Hz 10 MHz 10 Hz 3 39 Edge Duty Cycle Verification This procedure uses the following equipment e PM 6680 Frequency Counter e Nto BNC cable supplied with the Scope Calibrator Set the Calibrator Mainframe to the Edge menu Press on the Calibrator Mainframe to activate the output Then follow these steps to verify Edge duty cycle 1 Set the PM 6680 s FUNCTION to measure duty cycle on channel A with auto trigger measurement time set to 1 second or longer 50 Q impedance and filter off 2 Using the N to BNC cable connect the CHAN 1 connector on the Calibrator Mainframe to PM 6680 channel A Program the Calibrator Mainframe to output 2 5 V at 1 MHz 4 Allow the PM 6680 reading to stabilize Compare the duty cycle reading to 50 596 Edge Rise Time Verification This procedure tests the edge function s rise time Aberrations are also checked with the Tektronix 11801 oscilloscope and SD 22 26 sampling head The following equipment is used to verify the edge rise time e High Frequency Digital Storage Oscilloscope Tektronix 11801 with Tektronix SD 22 26 sampl
122. ng to the end of this cable 3 Allow the Calibrator Mainframe reading to stabilize then press the SET OFFSET blue softkey to zero the capacitance reading 4 Connect the end of the N to BNC cable to the BNC f connector attached to the nominal capacitor values indicated in Table 3 27 5 Allow the Calibrator Mainframe reading to stabilize then record the Calibrator Mainframe capacitance reading for each nominal value listed in Table 3 27 Compare the Calibrator Mainframe capacitance readings to the actual capacitance values and the tolerance column of Table 3 30 5820A Service Manual Table 3 27 MeasZ Capacitance Verification Calibrator Mainframe Nominal Capacitance Actual Capacitance Value Reading Capacitance Value Tolerance J Spr 0 75 pF 29 pF 1 95 pF 49 pF 2 95 pF 3 60 Overload Function Verification This procedure uses the following equipment e 50 Q feedthrough termination e Nto BNC cable supplied with the Calibrator Mainframe See Figure 3 9 for the proper equipment connections 5820A Cable OW SOURCE MEASURE EXT TRIG CHAN 1 CHAN2 d CHAN3 MAX GHANA 50 Q Feedthrough Termination yu061f eps Figure 3 9 Setup for Overload Function Verification Set the Calibrator Mainframe to the Overload menu Connect the N to BNC cable to the Calibrator Mainframe CHAN 1 connector Then follow these steps to verify the overload function 1 Connect the 50 Q feedthrough termin
123. nts Resolution Bandwidth 3 MHz Video Bandwidth 3 kHz Reference Level 20 dBm 2 Use your Spectrum Analyzer s Peak Search function to find the desired reference signal The Analyzer should show the fundamental and second and third harmonics The harmonics need to be adjusted so that the second harmonic is at 33 dBc and third harmonic should typically be at 38 dBc as shown in Figure 3 11 3 To adjust the harmonics adjust R8 as shown in Figure 3 11 until the peaks of the second and third harmonic are at the correct dB level You may find that you can place the second harmonic at 33 dBc but the third harmonic is not at 38 dBc If this is the case continue adjusting R8 The second harmonic will fluctuate but there is a point at which both harmonics will be at the correct decibel level 2nd harmonic 3rd harmonic aag051f eps Figure 3 11 Adjusting the Leveled Sine Wave Harmonics 3 67 Adjusting the Aberrations for the Edge Function Adjustments need to be made after repair to the edge function to adjust the edge aberrations Note To verify the edge aberrations back to national standards you should send your Calibrator Mainframe to Fluke or other facility that has established traceability for aberrations Fluke for example has a reference pulse that is sent to the National Institute of Standards and Technology NIST for characterization This information is then transferred to high speed
124. ope 22 26 sampling head or Tektronics TDS 820 scope with 8 GHz option Attenuator 2 3 dB SMA m f SMA T connector m f m 0 5 M SMA cable m m Adapter 2 BNC f to SMA m N to BNC Cable 2 supplied with Scope Calibrator f Leveled Sine Wave Frequency Verification Frequency PM 6680 with option PM 9621 PM 9624 50 kHz to 600 MHz lt 0 1 ppm Counter or PM 9625 and PM 9690 or PM 9691 uncertainty Adapter Pomona 3288 BNC f to Type N m N to BNC Cable supplied with Scope Calibrator Leveled Sine Wave Flatness Low Frequency Calibration and Verification AC Measurement Fluke 5790A Range 5 mV p p to 5 5 V p p Standard with 03 option Frequency 50 kHz to 10 MHz Adapter Pomona 3288 BNO f to Type N m N to BNC Cable supplied with Scope Calibrator Leveled Sine Wave Harmonics Verification Spectrum Analyzer HP 8590A 600 MHz and below HP 8592L Above 600 MHz GHz Option Adapter Pomona 3288 BNC f to Type N m N to BNC Cable supplied with Scope Calibrator Pulse Period Edge Frequency AC Voltage Frequency Verification Frequency Counter PM 6680 with option PM 9690 or PM 9691 uncertainty 20 ms to 150 ns 10 Hz to 10 MHz 0 12 ppm N to BNC Cable supplied with Scope Calibrator 3 4 Calibration and Verification Equipment Required for Calibration and Verification 3 Table 3 1 Scope Calibrator Calibration and Verification Equipmen
125. or Trigger BNC Figure 2 3 Signal Diagram of Scope Module aag031f eps Theory of Operation 2 Introduction 2 2 Other than the scope module the A81 Current Board the A6 Direct Digital Synthesis Board and the A3 Mother Board provide the other functions in the 5820A Digital controls are provided by the 5520A 4002 for the front panel display and by 5520A 4009 Out Guard CPU on the rear panel for all external and internal communication The A6 provides low frequency marker frequencies the wave generator functions and also contains the acquisition circuitry used in the dc voltage measurement In addition the main voltage reference signals are generated on this board TheA3 is used to provide the routing for all control signals from the guard processor and the signal path for all low frequency signals including the voltage sense signals An auxiliary input Auxin is a feature that allows a signal to be routed from the front panel to the output port Optional features for the 5820A include 5 channel multiplexing capability and GHz extended frequency capability The 5 channel option allows the output signals to be routed to one of five output ports The GHz gigahertz option provides a 2 1 GHz leveled sine and 150 ps fast edge Information about the optional feature can be found in the Options chapter of this manual Note In the following discussion the circuit boards are generally referenced by their last two digits
126. or adjusting the pots and trimmer caps e Extender Card e Oscilloscope Mainframe and Sampling Head Tektronix 11801 with SD 22 26 or Tektronix TDS 820 with 8 GHz bandwidth e 10dB Attenuator Weinschel 9 10 SMA or Weinschel 18W 10 or equivalent e Cable provided with 5820A e Spectrum Analyzer Hewlett Packard 8590A 3 63 Adjusting the Leveled Sine Wave Function There are two adjustment procedures that need to be made for the leveled sine wave function The first procedure adjusts the balance out of the LO VCO so that the signal is balanced between the two VCOs The second procedure adjusts the harmonics 3 64 Equipment Setup This procedure uses the spectrum analyzer Before you begin this procedure verify that the Calibrator Mainframe is in leveled sine wave mode the Levsine menu is displayed and program it to output 5 5 V p p 600 MHz Press to activate the output Refer to Figure 3 7 for setup connections and connect the Calibrator Mainframe to the Spectrum Analyzer Adjust the Spectrum Analyzer so that it displays one peak across its horizontal center line The far right of the peak is fixed at the far right of the center line as shown below 3 65 Adjusting the Leveled Sine Wave VCO Balance Once you have completed the setup described above perform the following procedure to adjust the VCO balance for the leveled sine wave function 3 59 5820A Service Manual 1 Program the Calibrator Mainframe for an output of
127. outed through A55 The signals are then sent to the A90 assembly where range attenuation occurs Wavegen signals are then sent to front panel high frequency switch Output trigger capability is not available with these signals Pulse Generator Pulse Gen Pulse Generator Modes signals are derived from A52 While the maximum pulse period is 20 ms or 50 Hz the minimum is 200 ns The pulse width can be set to less than 1 ns or set as wide as 500 ns The pulse can be skewed with the output trigger so that it leads or lags the trigger in 250 ps increments Output trigger capability is available with this signal Input DC Voltage Measurement Mode The dc voltage measurement mode is provided through A6 The input signal to be measured is filtered on A3 The DCV reference signal and measuring signals are on A6 Maximum input voltage is 10 V dc Caution Input voltages above 30 V dc may cause damage to the unit Input Impedance Mode Resistance The reference resistors for input resistances are on A51 while the actual measurement takes place on A6 Input Impedance Mode Capacitance Capacitance measurement circuits are contained on A55 Signals from the leveled sine signals are used in the measurement Theory of Operation 2 Introduction 2 11 2 12 2 13 2 14 2 15 2 16 Current Module For the A81 Current Board A55 supplies the reference signal This signal is inverted with respect to polarity of the output curren
128. pe Calibrator Set the Calibrator Mainframe to Edge Proceed with the following steps 1 Connect the Calibrator Mainframe s CHAN 1 connector to the HP 3458A input using the N to BNC cable and the BNC f to Double Banana adapter 2 Activate the TD Pulser output by pushing the TDPULSE blue softkey The output should now be at 80 V peak to peak 100 kHz STANDBY 3 Set the HP 3458A to DCV NPLC 001 LEVEL 1 TRIG LEVEL and the DELAY to 00012 for measuring the topline and DELAY to 00007 for measuring the baseline Manually range lock the HP 3458A to the 100 V dc range 4 Change the Calibrator Mainframe output frequency to 10 kHz Push the operate key and use the HP 3458A to measure the topline and baseline 5 The peak to peak value is the difference between the topline and baseline Record these values in Table 3 18 and compare against the listed tolerance Table 3 18 Tunnel Diode Pulser Verification Nominal Value Frequency Measured Value Deviation 1 Year Spec V p p Hz V p p V p p V p p 11 100 0 2202 11 1000 0 2202 55 100 1 1002 55 10000 1 1002 100 100 2 0002 100 10000 2 0002 3 42 Leveled Sine Wave Amplitude Verification This procedure uses the following equipment e 5790A AC Measurement Standard e BNC f to Double Banana Plug adapter e 50 Q feedthrough termination e Nto BNC cable supplied with the Scope Calibrator Set the Calibrator Mainframe to the Levsine menu Pres
129. porch appears try adjusting R175 Failure of the edge to appear above the porch may indicate that R188 also needs adjustment A typical fast edge waveform looks like Figure 5 2 Notice how the fast edge signal rides on top of a porch signal Options 5 GHz Module Amplitude from porch to top 250mV Rising edge 150ps N Porch yu005 eps Figure 5 2 Fast Edge Full Wave Form The fast edge testing procedure uses the following equipment A Tektronix TDS 820 with 8 GHz bandwidth option or a Tektronix 11801 with an SD 26 module 3 DMM It is suggested that an extender card be used during adjustment Use the following steps to test and adjust the circuits on A92 1 2 Da uL ON A Remove the GHz module and remove the machined cover over the A92 module Before the adjustment check that the resistance measured across the tunnel diode CR21 is between 2 Q and 5 Q If this measurement is less than 2 Q or more than 5 Q the tunnel diode may be damaged Install the GHz module on the extender board Connect the trigger signal from A55 to the trigger input J2 SMB on the A92 board Connect a scope to the GHz signal output connector J4 SMA Apply power No other cables need to be attached Set the 5820A edge function to fast edge on via the front panel Adjust the oscilloscope vertical offset so that the porch level is centered in the display screen See Figure 5 3 5 7
130. r at their own site if they are Calibration and Verification 3 Verification required to do so Fluke strongly recommends that if possible you return your unit to Fluke for calibration and verification All equipment specified for Scope Calibrator verification must be calibrated certified traceable if traceability is to be maintained and operating within their normal specified operating environment It is also important to ensure that the equipment has had sufficient time to warm up prior to its use Refer to the operating manual for each piece of equipment for details Before you begin verification you may wish to review all of the procedures in advance to ensure you have the resources to complete them All of the Scope Calibrator functions are listed in Table 3 4 with the verification technique indicated Table 3 4 Verification Methods for Scope Calibrator Functions Function Verification Method DC Voltage Procedure provided in this manual AC Voltage amplitude Procedure provided in this manual AC Voltage frequency Procedure provided in this manual DC Voltage Procedure provided in this manual Measurement Current Procedure provided in this manual Edge amplitude Procedure provided in this manual Edge frequency duty cycle rise time Procedure provided in this manual Tunnel Diode Pulser amplitude Procedure provided in this manual See Voltage and Edge Calibration and Verification for details
131. r into the 50 Q oscilloscope input and monitors the current A time measurement counter indicates the time duration of the applied overload signal When the input protection circuit reacts and opens up the 50 Q load the calibrator indication is set to off on the right hand display In order to prevent front end damage to the oscilloscope a limited amount of energy is applied by a user selectable time limit Table 1 17 Overload Measurement Specifications Source Typical On current Typical Off current Maximum Time Limit DC or Voltage indication indication AC 1 kHz 5Vto9V 100 mA to 180 mA 10 mA setable 5 to 60 sec 1 24 External Reference Input Specifications The External Reference Input selection allows the user to provide their own high stability 10 MHz reference clock for the 5820A for all functions except the Wave Generator function For all other modes the frequency stability is determined by the external reference stability The external reference input must be between 1 to 5 V p p 1 25 Auxiliary Input Specifications Maximum input voltage into the auxiliary input is 40 V p p Table 1 18 Auxiliary Input Performance Channel Configuration Frequency Typical Loss Typical VSWR 1 Channel 600 MHz 1 1 dB lt 1 2 1 1 Channel 600 MHz to 1 GHz lt 1 3 dB 1 41 1 Channel 1 GHz to 2 0 GHz lt 2 0 dB 1 73 1 Channel 2 GHz to 3 GHz lt 3 0 dB lt 2 01 5 Channel 600 MHz 1 1
132. re wave This is a single amplitude signal The period frequency is controlled by the trigger signal from A55 A special high frequency switch is used to switch between other signals and the fast edge signal The leveled sine signal is derived from A93 but the power amplifier and coupling circuits are on this board There is a high frequency switch used to select between the signals on A55 and this leveled sine signal A cable is used to route the output signal to the high frequency switches on the front panel 5 5 5820A Service Manual 5 6 10 MHz Ref osc From 600 MHz Bd with Trigger Attenuator removed 2 4 GHz Synthesizer and Amplifier T 10 MHz Reference Signal 8 dB Step Attenuator 150 pS Edge Switch aag072f eps Figure 5 1 GHz Block Diagram Fast Edge Adjustment for the GHz Module The GHz module consists of two boards A93 and A92 The fast edge is generated on A92 There are two adjustments for the fast edge e R175 adjusts the edge trigger level e R188 adjusts the amplitude of the porch signal on which the fast edge signal rides While R175 can be adjusted through a hole in the machined cover adjusting R188 requires that the A92 cover be removed Before the module is taken apart the fast edge should be checked against the specifications when viewed through a scope set to 1 ns division If no signal above the
133. red e Edge Leveled Sine Pulse Marker and Wave Generation modes e Accurate oscilloscopic input impedance measurement e Tunnel Diode Pulse compatibility e DC Volt Measure Mode e Current Mode generates both DC and low frequency ac current e I ns to 500 ns pulse width capability with skew controlled trigger ES s SSSSSSS S d f pm 7 w b amp LR DR 9 CJ AAA m A OO OO CES woe JOD OO BA JO Oe EG JO OE mj SA S CON SESS yh001f eps Figure 1 1 5820A Oscilloscope Calibrator 5820A Service Manual 1 4 e External reference e Auxiliary input e 5 channel output 5 Channel Option The 5 Channel Option allows you to calibrate up to five oscilloscope channels simultaneously without changing cables e Simultaneous output of a signal and a trigger signal e 600 MHz Leveled Sine wave output e Optional 600 MHz 2 1 GHz Leveled Sine wave output with 150 ps fast edge e Standard IEEE 488 GPIB interface complying with ANSI IEEE Standards 488 1 1987 and 488 2 1987 e FIA Standard RS 232 C serial data interface for printing displaying or transferring internally stored calibration constants and for remote control of the 5820A e Pass through RS 232 C serial data interface for communicating with the Unit Under Test UUT e Extensive automatic internal se
134. ront panel keypad then press ENTER Note The Calibrator Mainframe will warn when the entered value is out of bounds If this warning occurs recheck the setup and carefully re enter the reading insuring proper multiplier i e m L n p If the warning still occurs repair may be necessary 7 Repeat steps 6 until the Calibrator Mainframe display indicates that the next steps calibrate ac Voltage Press the STORE CONSTS blue softkey to store the new calibration constants AC Voltage must now be calibrated Continue with the next section AC Voltage Calibration This procedure uses the same equipment and setup as dc voltage calibration DC voltages are measured and entered in the Calibrator Mainframe to calibrate the AC Voltage function Set up the Calibrator Mainframe to Cal ACV Press the NEXT SECTION blue softkey until the display reads The next steps calibrate Scope Calibrator ACV Then follow these steps to calibrate ac voltage 1 Press the GO ON blue softkey 2 Allow the HP 34584 dc voltage reading to stabilize Enter the reading via the Calibrator Mainframe front panel keypad then press ENTER Note The Calibrator Mainframe will warn when the entered value is out of bounds If this warning occurs recheck the setup and carefully re enter the reading insuring proper multiplier i e m u n p If the warning still occurs repair may be necessary 3 Repeat step 2 until the Calibrator Mainframe display indicat
135. rs shipped since that time Skew calibration and verification is normally performed as part of the pulse width calibration and verification procedure For these procedures skew is measured from 30 of the trigger signal amplitude to 30 of pulse amplitude As an example the trigger output is 1 0 V into 50 Q if the pulse amplitude is 1 5 V the skew would be measured from 450 mV point on the pulse to 300 mV on the trigger Put the Calibrator into standby Connect the N to BNC cable supplied with the Scope Calibrator to the Calibrator Mainframe s CHAN 1 connector Connect the other end of 3 54 Calibration and Verification 3 Verification 3 55 3 56 the N to BNC cable to one BNC f to SMA m adapter then to the DSO s channel 1 sampling head through the 3 dB attenuator Using the second N to BNC cable connect to the Calibrator Mainframe s EXT TRIG channel 5 connector Connect the BNC end of the cable to a BNC f to SMA m adapter Next connect the adapter to one end of the SMA T connector Connect the T connector to the 3 dB attenuator and attached the attenuator to the DSO s channel 2 sampling head The other end of the T connector should be connected through a 0 5 M cable to the trigger input of the DSO Calibration On the Scope Calibrator keypad select SETUP On the display select the Cal soft key Next select Cal 58XXA soft key For the next soft key selections press Options followed by Next until you see the m
136. s on the Calibrator Mainframe to activate the output Then follow these steps to verify the leveled sine wave amplitude 1 Connect the N to BNC cable to the Calibrator Mainframe s CHAN 1 connector Connect the other end of the N to BNC cable to the 50 Q feedthrough termination then to the 5790A INPUT 2 using the BNC f to Double Banana adapter 2 Set the 5790A to AUTORANGE digital filter mode to FAST restart fine and Hi Res on 3 Program the Calibrator Mainframe to output the voltage listed in Table 3 19 Calibration and Verification Verification 3 4 Allow the 5790A reading to stabilize then record the 5790A s rms reading for each voltage listed in Table 3 19 5 Multiply the rms reading by the conversion factor of 2 8284 to convert it to the peak to peak value 6 Multiply the peak to peak value by 0 5 50 Rload Rload where Rload the actual feedthrough termination resistance to correct for the resistance error Compare result to the tolerance column Calibrator Mainframe Output 50 kHz 5 0 mV 7 5 mV Table 3 19 Leveled Sine Wave Amplitude Verification 5790A Reading V rms 5790A Reading x 2 8284 V p p V p p value x Correction Tolerance V p p 400 uV 450 uV 9 9 mV 10 0 mV 498 uV 500 uV 25 0 mV 39 0 mV 800 uV 1 08 mV 40 0 mV 70 0 mV 1 10 mV 1 70 mV 99 0 mV 100 0 mV 2 28 mV 2 30 mV 250 0 mV 399 0 mV 5 30 mV 8 28 mV
137. sampling heads which are used to adjust and verify the 5820A 3 68 Equipment Setup The following equipment is needed for this procedure e Oscilloscope Tektronix 11801 with SD22 26 input module or Tektronix TDS 820 with 8 GHz bandwidth e 10dB Attenuator Weinschel 9 10 SMA or Weinschel 18W 10 or equivalent 5820A Service Manual 3 62 3 69 e Output cable provided with the 5820A Before you begin this procedure verify that the 5820A is in the edge mode the Edge menu is displayed and program it to output 1 V p p 1 MHz Press to activate the output Refer to Figure 3 6 for the proper setup connections and connect the Calibrator Mainframe to the oscilloscope Set the oscilloscope vertical to 10 mV div and horizontal to 1 ns div Set the oscilloscope to look at the 90 point of the edge signal use this point as the reference level Set the oscilloscope to look at the first 10 ns of the edge signal with the rising edge at the left edge of the oscilloscope display Adjusting the Edge Aberrations Refer to Figure 3 12 while making the following adjustments 1 Adjust A90R 13 to set the edge signal at the right edge of oscilloscope display at 10 ns to the reference level set above 2 Adjust A90R36 so the first overshoot is the same amplitude as the next highest aberration 3 Adjust A90R35 so that the second and third overshoot aberrations are the same amplitude as the first aberration 4 Adjust A9OR12 to set t
138. ses below 1ns but pulse width accuracy is not specified 2 Assumes that trigger used in divide by 1 mode Other divide modes are not specified 3 Pulse skew measured from 30 of trigger signal amplitude to 30 of pulse range amplitude 4 Uncertainty specification applies only for pulse periods that are 3 us or greater in duration Otherwise skew uncertainty is typical 1 15 Trigger Signal Specifications Pulse Function Table 1 9 Trigger Signal Specifications Pulse Function Pulse Period Division Ratio Amplitude into 50 Q Typical Rise Time p p 20 ms to 200 ns off 1 10 100 21V lt 2ns Skew between Pulse and Trigger programmable from 10 ns to 30 ns 1 16 Trigger Signal Specifications Time Marker Function Table 1 10 Trigger Signal Specifications Time Marker Function Pulse Period Division Ratio 1 Amplitude into 50 Q p p Typical Rise Time 5 s to 750 ns off 1 21V 2 ns 34 9 ms to 7 5 ns off 10 21V lt 2 ns 34 9 ms to 2 ns off 1 10 100 21V 2 ns 5820A Service Manual 1 17 Trigger Signal Specifications Edge Function Table 1 11 Trigger Signal Specifications Edge Function Edge Signal Division Typical Amplitude Frequency Ratio into 50 p p Typical Rise Time Typical Lead Time 1 kHz to 10 MHz off 1 21V lt 2ns 40 ns 1 18 Trigger Signal Specifications Square Wave Voltage Function Table 1 12 Trigger Signal Specifications Square Wa
139. t a negative voltage results in a positive current output A81 has three ranges 100 uA to 1 0999 mA 1 1 mA to 10 999 mA and 11 mA to 100 mA The board limits the compliance to 2 V Overload Mode The source voltage for the overload mode is generated on the A51 Voltage Video Board The voltage is applied to the external 50 Q load and the circuit current is monitored by A6 Trigger The A55 marker clock signal is used to generate the trigger signals There are two trigger output SMB connectors on A55 The right angle SMB should be used to route the trigger signal to the front panel The vertical connector should be used to route the trigger signal to the optional GHz module if installed High Frequency Switching For the standard single channel calibrator output signals except for current and trigger are routed to a high frequency switch From the switch the signals are cabled to the 5820A 4096 output block For the single channel unit the trigger signal and current signal are cabled directly to the output block and current loop respectively A high frequency relay is used to select between the auxiliary input signal Auxin and the output signal The selected signal is cabled to connectors on the front panel In five channel units additional high frequency switches are used to route the trigger signal out channel 1 or channel 5 5 Channel Option This option multiplexes the output to one of the 5 channels All signals except for
140. t cont Instrument _Edge Duty Cycle Minimum Use Specifications Model _Frequency Counter PM 6680 N to BNC Cable Calibrator supplied with Scope Termination N to BNC Cable Resistors Capacitors Adapters N to BNC Cable MeasZ Resist User supplied User supplied Overload Functional Verification supplied with Scope Calibrator supplied with Scope Calibrator Leveled Sine Wave Flatness High Frequency Calibration and Verification Feedthrough 50 Q t 196 ance Capacitance Verification 40 60 Q 600 kQ and 1 5 MQ nominal values 5 pF 28 pF and 50 pF nominal value at the end of BNC f connector to connect resistors and capacitors to BNC f connector Power Meter Hewlett Packard 437B Range 42 to 5 6 dBm Frequency 10 600 MHz Power Sensor Hewlett Packard 8482A Range 20 to 19 dBm Frequency 10 600 MHz Power Sensor Hewlett Packard 8481D Range 42 to 20 dBm Frequency 10 600 MHz 30 dB Hewlett Packard Range 30 dB Reference 11708A Attenuator supplied with HP 8481D Frequency 50 MHz Adapter Hewlett Packard BNC f to Type N f PN 1250 1474 N to BNC supplied with Scope Cable Calibrator f Leveled Sine Wave Frequency Time Marker Verification Frequency PM 6680 with option 2 ns to 5 s 50 kHz to 600 MHz lt 0 1 ppm uncertainty Counter PM 9621 PM 9624 or PM 9625 and PM 9690 or PM 9691
141. talled in the high frequency section of the 5820A To use this reference frequency follow these instructions l In the Lev Sine mode press the MORE OPTIONS blue softkey The menu will change 2 Push the SET TOR 10MHz blue softkey If there is no GHz Option loaded into the 5820A then the SET TO R 10MHz menu option is not present Table 5 2 Leveled Sine Wave Specifications 2600 MHz Leveled Sine Wave Frequency Range Characteristics into 10 MHz 600 MHz to 1 1 GHz to 1 6 GHz to 502 reference 1 1 GHz 1 6 GHz 2 1 GHz Amplitude Characteristics Range p p 5 mV to 3 5 V Resolution 100 mV 3 digits 2 100 mV 4 digits Adjustment Range continuously adjustable 1 Year Absolute 2 of output 796 of output 7 of output 8 of output Uncertainty tcal 5 C 300 uV 300 uV 300 uV 300 uV Flatness not 596 of output 5 of output t 6 of output relative to 10 MHz 1 applicable 100 pV 100 uV 100 uV Short term Amplitude lt 1 2 Stability Frequency Characteristics Resolution 100 kHz 1 Year Absolute 0 33 ppm Uncertainty tcal 5 C Distortion Characteristics 2nd Harmonic lt 33dBc 3rd and Higher lt 38 dBc Harmonics 1 As measured near Oscilloscope bandwidth frequency 2 Within one hour after reference amplitude setting provided temperature varies no more than 5 C 5 4 Options 5 GHz Module 5 7 Time Marker Specifications Ta
142. the Calibrator Mainframe for an output of 5 mV 30 MHz Press on the Calibrator Mainframe to activate the output Allow the power meter reading to stabilize The power meter should display approximately 75 mW Enter the power meter s reading in Column A of Table 3 21 Enter 10 MHz into the Calibrator Mainframe Allow the power meter reading to stabilize then enter the power meter s reading in Column B of Table 3 21 Enter the next frequency listed in Table 3 21 Allow the power meter s reading to stabilize then enter the reading into Column A of the table Enter 10 MHz into the Calibrator Mainframe Allow the power meter reading to stabilize then enter the power meter s reading in Column B of Table 3 21 Repeat steps 4 and 5 for all of frequencies listed in Table 3 21 Continue until you have completed Columns A and B When you have completed Columns A and B press to remove the Calibrator Mainframe s output Complete Table 3 21 by performing the calculations for each column Compare Column G to the specifications listed in the final column 5820A Service Manual 3 38 Table 3 21 High Frequency Flatness Verification lamplitude Calibrator Calibrator Mainframe V Mainframe A B C D E Flatness Spec Freq 50 kHz MHz 0 005 50 MHz 3 50 100 MHz 3 50 150 MHz 4 00 200 MHz 4 00 250 MHz 4 00
143. ting dc voltage requires ac voltage calibration Note When dc voltage calibration is started the calibrator uses a special configuration of WAVEGEN mode with a zero frequency ordinarily undefined to source approximately 3 Vdc After the operator enters the true dc value this value is then transferred to the internal DACs and A D through a series of internal calibration steps On firmware version 1 5 and earlier the output displayed is 6 V pp 0 00 Hz at this step This is a side effect of the special configuration used As of firmware version 1 6 the output display indicates 3 V 0 00 Hz Set the Calibrator to Cal DCV by pressing the SETUP CAL and 5820A CAL blue softkeys then follow these steps to calibrate dc voltage 3 9 5820A Service Manual 3 9 1 Connect the Calibrator Mainframe s CHAN 1 connector to the HP 3458A input using the N to BNC cable and the BNC f to Double Banana adapter 2 Set the HP 3458A to DCV Auto Range NPLC 10 FIXEDZ on Press the GO ON blue softkey 4 Ensure the HP 3458A reading is 0 0 V dc 10 uV If not adjust R121 on A41 see Hardware Adjustments in this chapter Press the GO ON blue softkey Calibration voltages 33 V and greater will automatically put the Calibrator Mainframe output in standby When this occurs press on the Calibrator Mainframe to activate the output Allow the HP 3458A dc voltage reading to stabilize Enter the reading via the Calibrator Mainframe f
144. tions 1 1 6 e Serial port operation printing displaying or transferring data and setting up for serial port remote control e Operator maintenance including verification procedures and calibration approach for the 5820A e Accessories e Error Messages 5820A Service Manual This 5820A Service Manual includes product specifications appropriate theory of operation calibration and verification procedures maintenance information and options Specifications The following paragraphs describe the details for the 5820A specifications All specifications are valid after allowing a warm up period of 30 minutes or twice the time the 5820A has been turned off For example if the 5820A has been turned off for 5 minutes the warm up period is 10 minutes All specifications apply for the temperature and time period indicated For temperatures outside of tcal 5 C tcal is the ambient temperature when the 5820A was calibrated the temperature coefficient is less than 0 1 times the 1 year specification per C limited to 0 C 50 C If you ordered the GHz Option the following specification tables are supplemented by the tables with similar headings in Chapter 5 e Edge Specifications e Leveled Sine Wave Specifications Refer to Figure 1 2 for the dimensional outline of the 5820A Calibrator 5820A Service Manual I 43 2 em 17 in
145. tions Verification Tables for Channels 2 5 5 17 Pulse Skew Table 5 17 Pulse Skew a e a Channel Function Measurement Skew Width Period Value Deviation Spec s 1 pulse skew 1 00E 08 1 00E 08 2 00E 07 5 00E 10 1 pulse skew 5 00E 09 1 00E 08 12 00E 07 5 00E 10 1 pulse skew l1 50E 08 1 00E 08 2 00E 07 5 00E 10 1 pulse skew 3 00E 08 1 00E 08 12 00E 07 5 00E 10 3 pulse skew 1 00 08 1 00E 08 2 00E 07 5 00E 10 3 pulse skew 5 00E 09 1 00E 08 12 00E 07 5 00E 10 3 pulse skew 50E 08 1 00E 08 12 00E 07 5 00E 10 3 pulse skew 3 00E 08 1 00E 08 2 00E 07 5 00E 10 5 18 Channel 2 DMM Input Table 5 18 Levsine Amplitude Measured Function Measurement Amplitude Frequency Value Deviation Spec s Channel 2 levsine amplitude 5 5 50000 0 1103 Table 5 19 DC Voltage 1 MO Measured Channel Function Amplitude Value Deviation Spec V 2 dcvh 0 000025 2 dcvh 0 00002525 2 dcvh 0 00002525 2 dcvh 0 032525 2 dcvh 0 032525 5 25 5820A Service Manual Table 5 20 AC Voltage 1 MQ Measured Channel Function Measurement Amplitude Frequency Value Deviation Spec Vp p 2 acvh offset 0 001
146. to the front panel high frequency switch Output trigger capability is not available with this signal Time Marker Mode There are 4 primary ranges of time marker operation 5 s to 50 ms 20 ms to 2 us 1 us to 20 ns and 10 ns to 2 ns 2 7 5820A Service Manual 2 8 2 10 The 5 s to 50 ms markers are generated on A6 and are passed to A55 for filtering and shaping The 20 ms to 2 us markers are derived from a square wave signal that is generated on A55 and passed through wave shaping and external trigger generation The 1 us to 20 ns periods are derived from leveled sine or square wave signals The 10 ns to 2 ns sine markers are generated from the leveled sine wave generator on A55 This signal is also split to drive the external trigger circuits If the trigger is turned on the signal is then connected to the Trig Out on the front panel The other path routes the signal to the marker circuits on A55 where the signal is shaped into the other marker waveforms The marker signals are passed from A55 to the A90 and on to the front panel high frequency switch Filters on A55 shape the signal into spike and 20 pulse The marker signal passing through A55 is connected to the A90 assembly The signal is then passed to the front panel high frequency switch Output trigger capability is available with these signals Wave Generator Mode All amplitude and frequency for the Wavegen function are generated on A6 and the signals are r
147. ual resistance values and an HP 4192A Impedance Analyzer at 10 MHz to determine the actual capacitance value This procedure uses the following equipment e Resistors of known values 40 Q 60 Q 600 kQ and 1 5 MQ nominal e adapters to connect resistors to BNC f connector Calibration and Verification 3 MeasZ Calibration e adapters and capacitors to achieve 5 pF 28 pF and 50 pF nominal value at the end of BNC f connector e Nto BNC cable supplied with the Scope Calibrator EN SOURCE MEASURE EXT TRIQQGHAN 1 CHAN 2 ji CHAN 2 20V PK MAX CHAN 4 CHAN 4 EXT TRIG CHANS yu056f eps Figure 3 4 Setup for MeasZ Calibration Set the Calibrator Mainframe in Scope Cal mode at the prompt to connect a 40 Q resistor Then follow these steps to calibrate MeasZ 1 Connect the N to BNC cable to the SCOPE connector Connect the other end of the N to BNC cable to the BNC f connector attached to the 40 Q resistance Refer to Figure 3 4 for the proper equipment connections 2 Press the GO ON blue softkey Enter the actual 40 Q resistance 9 4 When prompted by the Calibrator Mainframe disconnect the 40 Q resistance and connect the 60 Q resistance 5 Press the GO ON blue softkey 6 Enter the actual 60 Q resistance Note The Calibrator Mainframe will warn when the entered value is out of bounds If this warning occurs recheck the setup and carefully re enter the actual resistance insuring proper multiplier i e
148. ution 4 or 5 digits depending upon 4 or 5 digits depending upon frequency frequency 1 Year Absolute Uncertainty teal 5 C 5 2 5 ppm 5 uHz 4 2 5 ppm 5 uHz 4 1 The DC offset plus the wave signal must not exceed 30 V rms 2 Applies to the 10 to 90 of the triangle waveform 500 mV p p to 10 V p p 3 No specification below 10 Hz or above 10 kHz 4 With 10 MHz external reference selected the uncertainty becomes that of the external clock plus 5 uHz 5 Uncertainties below 10 Hz are typical 6 Square wave rise fall time typically less than 500 ns Introduction and Specifications 1 General Specifications 1 14 1 ns Pulse Generator Specifications Table 1 8 Pulse Generator Specifications Pulse Generator Characteristics Fosiuve pules into 50 6 Typical Rise fall Time 500 ps Typical Available Amplitudes 1 5 V 600 mV 150 mV 60 mV 15 mV Pulse Width Range 1 1 ns to 500 ns Uncertainty 5 200 ps Pulse Period Pulse width 1 ns 20 ms to 200 ns 1 ns lt Pulse width x 9 9 ns 20 ms to 200 ns 10 ns lt Pulse width lt 79 9 ns 20 ms to 2 us 80 ns lt Pulse width lt 500 ns 20 ms to 10 us Resolution 4 or 5 digits depending upon frequency and width 1 Year Absolute Uncertainty tcal 5 C 0 33 ppm Pulse Skew with Trigger 3 Range 2 30 ns to 10ns with 250 ps resolution Uncertainty 4 500 ps 1 May generate pul
149. value is then compared to the resistor actual value The resistors must make a solid connection to a BNC f to enable a connection to the end of the N to BNC cable supplied with the Scope Calibrator The resistance values must be known at this BNC f connector Fluke uses an HP 3458A DMM to make a 4 wire ohms measurement at the BNC f connector to determine the actual resistance values This procedure uses the following equipment e Resistors of known values 1 5 MQ 1 MQ 60 Q 50 Q 40 Q nominal e adapters to connect resistors to BNC f connector e Nto BNC cable supplied with the Scope Calibrator Set the Calibrator Mainframe to the MeasZ menu Follow these steps to verify the MeasZ resistance function 1 Set the Calibrator Mainframe MeasZ resistance range as indicated in Table 3 26 The blue softkey under MEASURE toggles the MeasZ ranges 2 Using the N to BNC cable connect the CHAN 1 connector to the BNC f connector attached to the nominal resistance values indicated in Table 3 26 The 600 KQ nominal value can be achieved by connecting the 1 5 MQ and 1 MQ resistors in parallel Calibration and Verification 3 Verification 3 Allow the Calibrator Mainframe reading to stabilize then record the Calibrator Mainframe resistance reading for each nominal value listed in Table 3 26 Compare the Calibrator Mainframe resistance readings to the actual resistance values and the tolerance column of Table 3 26 Table 3 26 MeasZ Resistan
150. ve Voltage Function Edge Signal Division Typical Amplitude Frequency Ratio into 50 Q p p Typical Rise Time Typical Lead Time 10 Hz to 10 kHz off 1 21V lt 2ns 2 us 1 19 Trigger Signal Specifications TV Table 1 13 TV Trigger Signal Specifications Trigger Signal Type Parameters Frame Formats Selectable NTSC SECAM PAL PAL M Polarity Positive or negative Amplitude into 50 Q p p Adjustable 0 to 1 5 V p p into 50 ohm load 7 accuracy Line Marker Selectable Line Video Marker 1 20 Tunnel Diode Drive Capability Table 1 14 Tunnel Diode Drive Capability TD Pulse Drive Square wave at 100 Hz to 100 kHz with variable amplitude of 60 to 100 V p p 1 21 Oscilloscope Input Resistance Measurement Specifications Table 1 15 Oscilloscope Input Resistance Measurement Specifications Scope Input Selected 50 Q 1 Mo Measurement Range 40 O to 60 Q 500 kO to 1 5 MO Uncertainty 0 1 96 0 1 96 1 22 Oscilloscope Input Capacitance Measurement Specifications Table 1 16 Oscilloscope Input Capacitance Measurement Specifications Scope Input Selected 1MOo Measurement Range 5 pF to 50 pF Uncertainty 5 of input 0 5 pF 1 1 Measurement made within 30 minutes of capacitance zero reference Introduction and Specifications 1 General Specifications 1 23 Overload Measurement Specifications The Overload test function applies dc or ac 1 kHz square wave powe
151. ve to 50 kHz plus floor 96 100 sqrt Column B Column D entry 1 100 100uV nominal voltage 3 39 5820A Service Manual 3 40 Table 3 21 High Frequency Flatness Verification cont Amplitude Calibrator Calibrator Mainframe V Mainframe B D E Flatness Spec 96 Freq 50 kHz MHz 0 025 EN 1 90 0 039 1 75 600 MHz 4 26 Complete Columns A E as follows A Enter the 437B present frequency Reading W B Enter the 437B 50 kHz Reading W C S power sensor correction factor for present frequency W CF Column A D Apply power sensor correction factor for 50 kHz W CF Column B entry E Compute and enter Error relative to 50 kHz plus floor 96 100 sqrt Column B Column D entry 1 100 100uV nominal voltage Calibration and Verification Verification 3 Table 3 21 High Frequency Flatness Verification cont Amplitude Calibrator Calibrator Mainframe V Mainframe B D E Flatness Spec 96 Freq 50 kHz MHz 0 04 A NES 0 07 1 64 DNE T 600 MHz 4 14 Complete Columns A E as follows A Enter the 437B present frequency Reading W B Enter the 437B 50 kHz Reading W C S power sensor correction factor for present frequency W CF Column A D Apply power sensor correction factor for 50 kHz W CF Column B entry E Compute and enter Error relative to 50 kHz plus floor 96 100 sqrt Column B Column D entry 1 10
152. with external trigger enabled A convenient method to make these measurements from the HP 3458A s front panel is to program these settings into several of the user defined keys on its front panel For example to make topline measurements at 1 KHz you would set the DMM to NPLC 01 DELAY 0007 TRIG EXT To find the average of multiple readings you can program one of the keys to MATH OFF MATH STAT and then use the RMATH MEAN function to recall the average or mean value Note For this application if making measurements of a signal gt 1 kHz the HP 3456A has been known to have 0596 to 0 196 peaking For these signals lock the HP 3458A to the 1V range 3 7 5820A Service Manual HP 3458A Front 5820A Cable L 1 SOURCE MEASURE 50 Q Feedthrough pna m Termination E T CHAN 4 Mox AME cd CHO Adapter EXTTRIG GHANS i A HP 3458A Rear yu054f eps Figure 3 1 Setup for Scope Calibrator Voltage Square Wave Measurements 3 7 Setup for Scope Calibrator Edge and Wave Gen Square Wave Measurements The setup to measure the topline and baseline of Edge and Wave Generator signals differs slightly from the Voltage Square Wave method described above The HP 3458A is triggered by a change in input level instead of an external trigger The trigger level is set to 1 of the DCV range with ac coupling of the trigger signal The delay after the trigger event is also changed for th
153. with the 5820A 5 Option are the same as for units without this option Note If the 5820A is equipped with the 5 channel option the Mainframe will indicate when to move to the next channel 5 3 GHz Module The GHz option extends leveled sine from 600 MHz to 2 1 GHz and adds a 150 ps 250 mV fast edge signal The GHz Module offers extended specifications for many of the 5820A Oscilloscope Calibrator functions See the GHz Option Specifications section later in this chapter 5 4 GHz Option Specifications Inclusion of the GHz option modifies several of the Calibrator s specifications The following specification tables supersede those with the similar titles in Chapter 1 e Fast Edge Specifications e Leveled Sine Wave Specifications 2600 MHz e Time Marker Specifications 5 5 Fast Edge Specifications Table 5 1 Fast Edge Specifications 1 Year Absolute Uncertainty Edge Characteristics into 50 Q tcal 5 C Amplitude Range p p 250 mV Adjustment Range none Other Edge Characteristics Frequency Range 1 1 kHz to 1 MHz 0 33 ppm of setting Rise Time 0 50 ps 1 All readings are referenced to a Tek11801 with an SD26 module or a Tek820 oscilloscope with a 8 GHz bandwidth option 5 3 5820A Service Manual 5 6 Leveled Sine Wave gt 600 MHz Specifications Note To ensure applied frequencies above 600 MHz meet factory specifications the user MUST use the special 10 MHz reference that is ins
154. you begin this procedure verify that the Scope Calibrator is in the edge mode the Edge menu is displayed program it to output 1 V p p 1 MHz and press the soft key under TRIG to select the TRIG 1 External Trigger output Press f to activate the output and trigger Set the DSO vertical to 10 mV div and horizontal to 10 ns div Next set the signal edge against the left side of the DSO display Mentally note the signal amplitude 90 ns from the edge use this point as the reference level It maybe helpful to set the DSO to average 4 per reading Now set the DSO to 1 ns div and look at the first 10 ns of the edge signal with the rising edge at the left edge of the DSO display With the vertical setting each line on the DSO represents a 146 i e 10 mV of aberration Determine that the Scope Calibrator falls within the typical specifications shown in Table 3 17 For time greater than 10 ns set the DSO to 10 ns div Verify the aberrations are within specification Table 3 17 Edge Aberrations Time from 50 of Rising Edge Typical Edge Aberrations 0 2ns 32 mV 3 2 2 5ns 22 mV 2 296 5 30ns lt 12 mV 1 2 gt 30 ns lt 7 mV 0 7 3 33 5820A Service Manual 3 34 3 41 Tunnel Diode Pulser Drive Amplitude Verification This procedure uses the following equipment e Hewlett Packard 3458A Digital Multimeter e BNC f to Double Banana adapter e Nto BNC cable supplied with the Sco

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