Keithley 3910 Operator'S Manual Download

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Summary of Contents for 3910

Page 1: ...Operator s Manual Model 3910 Function Synthesizer 01991 KeithleyInstruments Inc A l l RightsResewed InstrumentsDivision Cleveland Ohio U S A ocumentNumber 3910 900 01...

Page 2: ...All Keithley product names are trademarksor registered hademarksof Keithley Instruments Inc Otherbrandandproductnamesare trademarksor registeredtrademarksoftheir respectiveholders...

Page 3: ...ak are present A good safety practice is to expect that hazardousvoltage is present in any unknown circuitbefore measuring Inspect the connectingcablesand test leadsfor possiblewear cracks orbreaksbef...

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Page 5: ...tarted INTRODUCTION 2 1 INSTALLATION 2 1 InstalIationLocation c 2 1 Cooling 2 1 LINEPOWERSUPPLY 2 2 LINEVoltage SelectorSwitch 2 2 LineReceptadeConnection 2 2 LineFuse 2 2 HANDLING PRECAUTIONS 2 2 BAS...

Page 6: ...B Interface INTRODUmON 4 1 GPIBOverview 4 1 MajorGPIBSpecifications 4 1 BusLineSignAandOperation 4 1 GPIBHandshaking 4 2 Data TransferExample 4 3 BasicTalkerFunctions 4 3 BasicListenerFunctions 4 3 Ba...

Page 7: ...earPanel 3 4 LogicInputCircuit 3 5 OutputCircuit 3 6 PhaseRelationshipbetweenFCTN OUTWaveformand SYNCOUT 3 9 RelationshipbetweenTriggerSignalandOscillationi nTRIGMode 3 10 RelationshipbetweenTriggerSi...

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Page 9: ...CTION 2 Getting Started Table2 1 FuseReplacement 2 2 SECTION4 GPIB Interface Table4 1 Multiple lineInterfaceMessage 4 5 Table4 2 InterfaceFunctions 4 6 Table4 3 BusDriverSpecifications 4 6 Table4 4 Re...

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Page 11: ...uty cycle is also variable TheModel3910usesa singleline 1 1 character LEDdis play to display the values of oscillation frequency pa rameters and other values Settingsare easily made us ingpush button...

Page 12: ...ackingcartonforstorage or possiblefutureshipment 1 6 2 Shipment Contents 1 3 WARRANTY INFORMATION Warrantyinformationislocatedontheinsidefrontcover of this operatofs manual Should your Model 3910 re q...

Page 13: ...transfer uses a 3 line handshake method enabling reliable data transfer between data sending talkers and receivers listeners having differ ingdata transfer rates SECTION 1 GeneralInJonnution Model 70...

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Page 15: ...Alsotheenviron ment must be free of dust and vibration and the Model 3910mustnot be exposed to directsunlight TheModel3910usesalinefilter butpulsenoiseorstrong magneticorelechicfieldsmay causeincorrec...

Page 16: ...ounded AC power receptaclesup plying the correctvoltage WARNING The Model 3910 is equipped with a 3 w e power cord that contains a separate ground wire and is designed to be used with grounded outlets...

Page 17: ...scuss typicaloperatingexamplesfor the Model 3910 2 5 2 Typical Test Connections Figure2 2 shows typical tests connections between the 2 5 1 Front Panel Summary Model 3910mainsynthesizerand aDUT Note t...

Page 18: ...ayshowsa frequencyhigherthan500Rz use thisnext sequence Otherwiseskip to step 2 A Movethecursorto theseventhposition Thesev enth position 100Hz column will blink Press the CLEAR key and at the same ti...

Page 19: ...are waves with different on and off times Leavethesquarewaveinsomeextremevariablepo sition that is an obviouslyunequal on or off time 3 PressDUTYVAR keyagain Thescopepresentation reverts to a square w...

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Page 21: ...refer to Section4 put BNCconnectors 3 2 FRONT PANELAND REAR PANEL Mostsettingsaremaintained inbatterybacked upmem DESCRIPTION ory As a result the Model 3910automatically assumes the previous settings...

Page 22: ...led start stop phase markwavenumber andspace wavenumber WhenLEDatthelowerleftof the lay is lit oscillation frequency is selected When LED at the upper left of the displayis lit GPIB address start stop...

Page 23: ...nput goes from high level to low level it operatesas a triggers i g n a l V Amplituderange down key When the down cursorkey is pressed the maxi mum value of theamplitudeoutput signalisre duced SYNC OU...

Page 24: ...kwise increases the value while turning the knob counter clockwise decreases the value This knob can be used to set the following pararne ters frequency GPIB address 0301 start stop phase 0 O0 mark wa...

Page 25: ...out let using the supplied 3 wire power cord or the equivalent Thegroundingterminalisconnectedtothechas sis of the Model 3910 To prevent interference and for safety be sure to ground this terminal WAR...

Page 26: ...at end of the cable with a 50R impedance Note that the which the supply voltageisset Model 3910 displays voltage amblitudefor open circuit conditions The actualoutput voltage with a 50Q tenni CAUTION...

Page 27: ...play Displayed error codes and their meanings are summa rized below ERRl ROMerror Abnormalityin internalROMof the machine ERR2 RAMerror Abnormality in internalRAM of the machine ERR3 Memorybackup erro...

Page 28: ...mplitudesetting Waveform Selection Pressing the FCTNkey advances the present waveform functionon the upper right of the front panel Available A A waveforms include sine b triangle b s uare 6111 rising...

Page 29: ...nchronous output Note that as the frequency increases a substan tial phase differentialwill resultbetween the waveform output and the synchronousoutput signals 3 5 6 Oscillation Mode OscillationMode S...

Page 30: ...play When the LED is lit next to GPTB the mark wave number can be found on therightsideof thedisplay Thenuse the4and bkeys to advance the cursor to the mark wave number Turn the MODIFY knob UP clockwi...

Page 31: ...f the dis play When the LED is lit next to GPIB the start stop phasesettingcanbefoundinthecenterof thedisplay To change the current start stop phase setting move the cursortothestart stop phasebyusing...

Page 32: ...ave 0 Not includingthis point Includingthis point amplitude amplitude I 1 I I I 1 I I Phase Phase I 0 180 3 6 0 O0 l8Os 3 6 0 RisingSawtoothWave Falling Sawtooth Wave 0 l n c l u d i n g 2 q Not inclu...

Page 33: ...keys tothe desirednum ber Then turn the MODIFY knob UP dockwise to in crease the setting or DOWN counter clockwise to de creasethesetting Theallowablerangeforthemarkwave numbersettingis 1to 16 Thespac...

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Page 35: ...tes 4 1 2 Major GPIB Specifications Overallcablelength 20m maximum Cablelengthsbetween devices 4m maximum Number of devicesconnectable includinga controller 15maximum Transfermethod 3 linehandshake Tr...

Page 36: ...This control line is used by a device to request service fromthecontroller Thecontrollerdetectsthissignaland usuallyexecutesa serialor parallelpoll operation EOIEnd Qr Identify This line is used to in...

Page 37: ...set low to indicate to the listener that the data is valid WhenDAVgoeslow thelistenerreadsdata and NRFDissetlow indicatingtothetalkerthatdata processing is in progress Each listener sets NDAC high att...

Page 38: ...SECTTON4 GPIB Interface Talker Ustener UNL Address Address A B C CR LF DATA A M I DAV NRFD L r NDAC EOI I Figure4 3 Data TrnnsferEmnrple 7 7...

Page 39: ...SECTION4 GPIBInterfire Table4 1 Multiple line InterfaceMessage...

Page 40: ...ons are sent t the controfleras tener mode are in 7 bit ASCII format bit 7is ignored character stringsin ASCII format Codes can be sentusing either lower caseor upper case letters Ineithercase codesar...

Page 41: ...p to 14characters 14bytes Note that space tab and semicolonsarenot stored in the input buffer InitializesGPIBinterface Releasesspecifiedlistenerand talker modes ClearsGPIB input output buffer Clears e...

Page 42: ...esponseisonIycCR TJ EOI ServiceRequest The Model 3910 can request service from the controller via the SRQline under the followingconditions FCDJ OUTON OFF key was operated Out of standard program code...

Page 43: ...sed AIways0 notused When SRQis issued When statusbyte output When DCLor SDCreceived WhenSRQcausewas eliminated due to SRQmaskset 5 Error SRQcause When out of standardprogram code When DCL or SDCreceiv...

Page 44: ...MARKwave number2wave settingwhen BURST TRIG DC D NR1 DC OFFSETON OFF settings Range 0 off 1 on Ex D l DCOFFSETon FREQUENCY F NRl Frequencysettings frequency Hz Range I 0 lmHz to 10000000000 1MHz Ex F...

Page 45: ...ACEwavenumber2wavesettingwhenBURST Triggersignalfrom GPIB Range 0 triggeroff I trigger on Ex Setfrom T O T I T Owhen trigger operated DUTY VAR on off settings Range 0 of0 1 on Ex V1 on Function START...

Page 46: ...owninTable4 7arethe timesre quired from the reception of the command until execu tionis complete Table47 Typical Execution Times Function Amplitude Cycle DC Frequency Setting MessageHeader A C D F Typ...

Page 47: ...the and send them to the Model 3910 Model 3910and thesubroutinestosetREN trueorfalse ampleProgram 1 I0 OUTPUT KBO CHR 255 1 CHI 751 Clear screen 20 CLEAR 702 Clear GPIB 30 REMOTE 702 Set f o r GP10 c...

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Page 49: ...actory However thetypicaldata Appendix A provides the typical performance data for represenkmeanvaluesofmeasurementsforeichModel theModel3910 3910 Thus measured performanceof your Model 3910 may be di...

Page 50: ...y Hz Sine wave AMPTD 10V p pl5OQ 1 kHz standard 50R load Figtire A I Sine WaveAmplitude vs Frequency Characteristics I Amplitude 10k look 1M Frequency Hz Slnewave AMPTD 10V p pI50fl 1kHzstandard 50 J...

Page 51: ...Frequency Range Display Accuracy 9 Amplitude Frequency Amplitude accuracy referenced to amplitude at t k k DCoffset off 50Rload 10Vp poutput Characteristics Sine wave iO ldB 4 31OkI h CONT BURST TRIG...

Page 52: ...Method Left Right Cursor Button and Modify Dial TriggerSource Input Voltage Start Stop Phase I presets I Externaltrigger only Front panel BNCplug or push button switch T Z level 74HCl4input with S lki...

Page 53: ...NDAC NRFD SRQ Opencollector DAV EOI IThree state Return to local function IEEE 488 24 pin GPlBconnector rear panel Signal Ground Power Supply Ambient Temperature and Humidity External Dimensions Weigh...

Page 54: ...Figitre B 1 Ottler Dimensions of theModel 3910...

Page 55: ...0 H HandlingPrecautions 2 2 I Input Connection 3 5 Inquiry Messages 4 8 Installation 2 1 InterfaceFunctions 4 6 L LINEVoltageSelector Switch 2 2 LineFuse 2 2 L i ePowerSupply 2 2 Line ReceptacleConnec...

Page 56: ...y Cycle 3 8 Start Stop Phase 3 11 Startup 3 6 StatusByte 4 9 SynchronousOutput 3 9 spacewave setting 3 13 TriggerParameters 3 11 TypicalData A 1 Typical ExecutionTimes 4 12 TypicalTestConnections 2 3...

Page 57: ...zero nunstable DWill not read applied input OOverload OCalibration only OCertificate of Calibrationrequired OData required attachany additional sheetsasnecessary Show ablock diagram of your measuremen...

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