Appendix C, Direct Digital Synthesis | Agilent Technologies E1441A

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Agilent Technologies user service Agilent E1441A Function Generator Tutorial, Appendix C, Direct Digital Synthesis

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Where to Find it - Online and Printed Information User/Service and SCPI Programming ManualE1441-90003 Agilent E1441APage Edition ContentsChapter Chapter Appendix A ChapterAppendix B Appendix C Performance Verification Tests 6 Contents DURATION OF WARRANTY: 1 year AGILENT TECHNOLOGIES WARRANTY STATEMENTCertification U.S. Government Restricted Rights Documentation History Safety SymbolsTrademarks WARNINGS DECLARATION OF CONFORMITY SafetyMeasurement Product Generation Unit Conforms with the following European Directives Notes Notes Notes Agilent E1441A Module SetupFunction/Arbitrary Waveform Generator Chapter Setting the Module Address Switch Figure 1-1.Setting the Logical AddressChapter Interrupt Priority Installing into the Mainframe Faceplate Indicators Faceplate Indicators and ConnectorsOption 001 Phase-Lock10 MHz Reference Terminals Standard Input/Output Terminals Initial Operation Chapter Agilent E1441A Application Information Output ConfigurationFunctional Capabilities Chapter Valid Function/ Modulation Modes FUNCtion:SHAPe SIN|SQU|TRI|RAMP|NOIS|USER|DC TableTable Chapter FREQuency <frequency>|MINimum|MAXimum Table22 Agilent E1441A Application Information Chapter Parameter Page Use the following command to set the dc offset Use the following command to set the duty cycle sync signal, you can disable the Sync terminal AM Carrier Waveform Shape Amplitude Modulation AM Amplitude Modulating Waveform Frequency Amplitude Modulating Waveform ShapeAmplitude Modulation Depth FREQuency <frequency>|MINimum|MAXimum Amplitude Modulating Source Frequency Modulation FM FM Carrier Frequency FM Carrier Waveform Shape FM Peak Frequency Deviation 32 Agilent E1441A Application InformationChapter •“Burst Modes” on page “Burst Phase” on page“Counted Burst Mode” on page “Gated Burst Mode” on page The command sequence to configure this mode is The command sequence to configure this mode istrigger source 34 Agilent E1441A Application Information Burst Trigger Source For Counted Burst Mode Gated Burst Mode INTernal IMMediateEXTernal TTLTRG<n> Minimum Frequency Number of Arb PointsMaximum Frequency Carrier Frequency Burst Count Use the following command to set the burst rate Use the following command to set the burst countBM:NCYCles <# cycles>|INFinity|MINimum|MAXimum BM:INTernal:RATE <frequency>|MINimum|MAXimum •“FSK Carrier Frequency” on page Frequency-Shift Keying FSK Modulation•“FSK “Hop” Frequency” on page •“FSK Rate” on page •“FSK Hop Source” on page Use the following command to set the FSK rate Use the following command to set the frequencyFREQuency <frequency>|MINimum|MAXimum FSKey:FREQuency <frequency>|MINimum|MAXimum External Hop Source Internal Hop Source42 Agilent E1441A Application Information Chapter •“Sweep Start and Stop Frequencies” on page Sweep Start and Stop Frequencies•“Sweep Time” on page •“Sweep Mode” on page •“Sweep Trigger Source” on page Internal Source Sweep Trigger Source External Sources Figure 2-9.Frequency Sweep with Internal Trigger Sweep Trigger Signal TRIG:SOUR INT shownTRIGger:SOURce IMMediate|EXTernal|TTLTRG<0-7>|BUS Chapter Creating Arbitrary Waveforms Arbitrary Waveforms Creating and Storing an Arbitrary Waveform Figure Waveforms48 Agilent E1441A Application Information Chapter APPL:SIN 10E+6, Phase-Lock Capabilities OptPHAS:ADJ 90DEG requires Option To Phase Lock Multiple Function GeneratorsFigure 50 Agilent E1441A Application Information To Phase Lock Using the Counted Burst Mode Send these commands to both function generatorsrequires Option Triggering the Function Generator Trigger SlopeTrigger Source Choices External Triggering Including TTLTRG lines Internal TriggeringTrig / FSK / Burst Input Terminal” on page Software BUS Triggering Figure Ext Trig / FSK / Burst Input Terminal54 Agilent E1441A Application Information Chapter System-RelatedOperations SCPI Language Version Query Firmware Revision Query Reset State Power-OnandFeature Power-Onand Reset State CLanguage Programs Compiling and Linking a C Application Program ExamplesProgram Example Programs Burst Modulation Program Chapter Agilent E1441A Application Informationiferr != VI_SUCCESS err_handlerfuncgen, err AM Modulation and Instrument State Storage 60 Agilent E1441A Application InformationChapter Arbitrary Waveform Example ChapterAgilent E1441A Application Information Chapter 62 Agilent E1441A Application Information Chapter end of main Error handling functionAgilent E1441A Application Information close the device session */ viClosefuncgen Chapter 64 Agilent E1441A Application Information Agilent E1441A SCPI Command Reference Command Index by FunctionChapter Modulation Commands 66 Agilent E1441A SCPI Command ReferenceChapter Arbitrary Waveform Commands Sweep CommandsTrigger Commands Agilent E1441A SCPI Command Reference Calibration Commands System-RelatedCommandsStatus Reporting Commands 68 Agilent E1441A SCPI Command Reference Option 001 Phase-LockCommands The IEEE-488.2Common CommandsAgilent E1441A SCPI Command Reference Chapter Common Command Format Command FundamentalsSCPI Command Format Abbreviated Commands Linking Commands Implied CommandsParameters Command Guides SCPI Command Reference CALibration? CALibrationCOUNt? Subsystem Syntax SECure:CODE SECure:STATeParameters SETup? SETupSECure:STATe? STRing VALue STRing?VALue? Parameters DATA VOLATILESubsystem Syntax DAC VOLATILE ATTRibute:AVERage? ATTRibute CFACtor?Downloading a Binary Block of Data ATTRibute PTPeak? ATTRibute:POINts?80 Agilent E1441A SCPI Command Reference Chapter COPY CATalog?Agilent E1441A SCPI Command Reference Chapter DELete DEL:ALL NVOLatile:CATalog?NVOLatile:FREE? BORDer FORMatBORDer? •Related Commands STATe:DELete MEMorySTATe:RECall:AUTO •Related Commands: *RCL, *SAV Comments • Returned Value: 0 or STATe:RECall:AUTO? LOAD OUTPutLOAD? Parameters SYNC? SYNCTRIGger:IMMediate TRIGger:STATe Agilent E1441A SCPI Command Reference TTLTrg<n>:STATe?enable TTLTRG2 line to source a trigger enable TTLTRG7 line to source a trigger ADJust PHASeSubsystem Syntax PHASe Only valid with Option UNLock:ERRor:STATe ADJust?UNLock:ERRor:STATe? REFerence 92 Agilent E1441A SCPI Command Reference SOURceSubsystem Syntax Chapter AM:DEPTh Amplitude Modulation AM CommandsParameters •*RST Condition: 100% AM:INTernal:FUNCtion AM:DEPTh?AM:INTernal:FUNCtion? AM:INTernal:FREQuency AM:STATe AM:SOURce?AM:STATe? •*RST Condition: BOTH APPLy Commands APPLy Command ParametersSyntax in the waveform see below Chapter 98 Agilent E1441A SCPI Command Reference ±10 Vdc into an open circuit APPLy NOISe APPLy:DCAPPLy:RAMP APPLy:SINusoid APPLy:TRIangle APPLy:SQUareAPPLy:USER APPLy? BM:NCYCles BURST MODULATION COMMANDSBM NCYCles? BurstCount BM:PHASe? BM:PHASeBM:INTernal:RATE Parameters BM:INTernal:RATE? FM COMMANDSBM:SOURce BM:SOURce? FM:DEViation? FM:DEViationFM:INTernal:FREQuency Parameters FM:INTernal:FUNCtion FM:INTernal:FREQuency?FM:INTernal:FUNCtion? FM:STATe FREQuency:STARt FREQuency?Agilent E1441A SCPI Command Reference Parameters FREQuency:STARt? Frequency-ShiftKeying FSK CommandsFREQuency:STOP FREQuency:STOP? FSKey FREQuency? FSKey:FREQuencyFSKey INTernal RATE FSKey:INTernal:RATE? FSKey:SOURce? Selecting an Arbitrary WaveformFSKey:STATe FSKey:STATe? FUNCtion:SHAPe FUNCtion:USER?Agilent E1441A SCPI Command Reference Chapter PULSe:DCYCle FUNCtion:SHAPe?112 Agilent E1441A SCPI Command Reference Parameters SWEep:SPACing PULSe:DCYCle?SWEep:SPACing? SWEep:TIME SWEep:STATe? SWEep:STATeVOLTage 114 Agilent E1441A SCPI Command Reference VOLTage:OFFSet VOLTage?Agilent E1441A SCPI Command Reference Parameters VOLTage:OFFSet? VOLTage:UNITVOLTage:UNIT? STATus PRESetQUEStionable :CONDition? QUEStionable :EVENt? QUEStionable :ENABle? QUEStionable :ENABle Agilent E1441A SCPI Command Reference FigureChapter SYSTem ERRor?VERSion? Subsystem Syntax SLOPe TRIGgerSLOPe? SOURce the *TRG IEEE-488.2common command Related Commands *RST Condition TRIG SOUR IMM SOURce? Command IEEE 488.2Common CommandReference124 Agilent E1441A SCPI Command Reference Category ESR? ESE?Comments • Coupled command: No •Related Commands: STATus:PRESet OPC? IDN?OPT? option Comments • Coupled command: No •Coupled command: No PSC?Comments • Coupled command: No •*RST Condition: none Comments • Coupled command: No •Coupled command: NoPower-OnCondition no bits are enabled Parameters STB? SRE?TST? Comments • Coupled command: No Feature Agilent E1441A Power-Onand Reset StatePower-Onand Reset State 130 Agilent E1441A SCPI Command Reference SCPI Command Quick Reference Agilent E1441A SCPI Command ReferenceChapter Chapter 132 Agilent E1441A SCPI Command Reference Agilent E1441A SCPI Command Reference SOURceChapter Chapter 134 Agilent E1441A SCPI Command Reference Appendix A Agilent E1441A SpecificationsSinewave Spectral Purity Frequency Characteristics Output Characteristics 1,5 Amplitude into 50Ω:2 Signal Characteristics Square waveResolution Triangle, Ramp, Arb Modulation CharacteristicsFrequency Sweep Faceplate Inputs5 Arb Download Times System Characteristics Configuration TimesCooling/Slot Operating Environment Phase Offset Option 001 Specifications Timebase AccuracyFaceplate Output: Ref Out terminal Trigger Appendix A 140 Agilent E1441A Specifications Execution Errors Agilent E1441A Error MessagesAppendix B 102 Syntax error 109 Missing parameter 108 Parameter not allowed112 Program mnemonic too long 113 Undefined header 151 Invalid string data 170to -178 Expression errors158 String data not allowed 161 Invalid block data 221 Settings conflict; offset has been adjusted 221 Settings conflict; frequency has been adjusted 222 Data out of range; amplitude 222 Data out of range222 Data out of range; frequency 222 Data out of range; offset 550Command not allowed in local 350 Too many errors580Phase-lockedloop is unlocked 440 Query UNTERMINATED after indefinite response Calibration Errors Self-TestErrors590I/O processor reset 601Trigger test failed 701Cal security disabled by jumper 702Cal secured 707Cal signal measurement out of range703Invalid secure code 704Secure code too long 850Cal setup invalid Arbitrary Waveform Errors851Negative offset gain cal required CAL:SETup 852Flatness DAC gain cal required CAL:SETup 785Specified arb waveform does not exist 783Arb waveform name too long786Cannot delete a built-inarb waveform 788Cannot copy to VOLATILE arb waveform 580Phase-lockedloop is unlocked Option 001 Phase-LockErrors Appendix B 152 Agilent E1441A Error Messages Agilent E1441A Function Generator Tutorial Appendix CDirect Digital Synthesis Figure C-3 Figure C-2154 Agilent E1441A Function Generator Tutorial Appendix C Signal Imperfections Appendix CAgilent E1441A Function Generator Tutorial Figure C-4 Output Amplitude ControlFigure C-5 156 Agilent E1441A Function Generator Tutorial Attributes of AC Signals Floating Signal GeneratorsAppendix C Agilent E1441A Function Generator Tutorial 1 + D ⋅ Am 〈 t〉 ⋅ sin2π ⋅ Fc ⋅ T Modulation158 Agilent E1441A Function Generator Tutorial Appendix C Agilent E1441A Function Generator Tutorial Appendix CFor wideband FM Start Frequency + Stop Frequency Deviation = Hop Frequency – Carrier Frequency 160 Agilent E1441A Function Generator TutorialAppendix C for AM Table C-1624for FM Appendix C Points P = C/S / Fs = Fs = 1 / 9 x 200 ∝s = 555.555 kHzy = mX + b 162 Agilent E1441A Function Generator Tutorial Appendix D Service Procedures Automated Verification and Calibration Procedures Agilent Technologies Calibration ServicesClosed-CaseElectronic Calibration Calibration Interval Test Considerations Recommended Test Equipment Performance Verification Tests Frequency Verification Quick Performance CheckPerformance Verification Tests DC Function Offset Verification Function Gain and Linearity Verification168 Service Procedures Table D-4.DC Function Offset Verification Service Procedures AC Amplitude VerificationTable D-5.AC Amplitude Verification High Z Appendix D 170 Service Procedures Table D-6.AC Amplitude Verification 50 OhmsAppendix D Service Procedures Amplitude Flatness VerificationTable D-7.Amplitude Flatness Verification Appendix D AM Modulation Depth Verification Optional Performance Verification TestsSquare Wave Duty Cycle Verification Service Procedures Distortion VerificationTable D-10.Distortion Verification Appendix D To unsecure for calibration Calibration Security CodeTo re-secure To change security code Unsecuring the Function Generator Calibration Message Calibration Count Calibration Example General Calibration/Adjustment Procedure Aborting a Calibration in Progress Frequency and Burst Rate Adjustment Function Gain and Linearity Adjustment AC Amplitude Adjustment High-Z Modulation Adjustment Table D-15.50 Ohm Adjustment Setup AC Amplitude Adjustment 50 Ohms182 Service Procedures Appendix D Table D-16.AC Amplitude 50 Ohms Adjustment Setups 7.Repeat steps 4, 5 and 6 for SETUP 35 throughService Procedures 8.Perform the “AC Amplitude Verification” on page DC Output Adjustment AC Amplitude Flatness Adjustment Duty Cycle Adjustment 1 kHz to 100 kHz Table D-22.AC Flatness Adjustment Setups Service ProceduresAppendix D Table D-23.System Error Messages Error MessagesTable D-24. Self-TestError Messages 188 Service Procedures Table D-25.Calibration Error Messages Service ProceduresAppendix D Test Limits Measurement Uncertainty Performance Test RecordTest Accuracy Ratio TAR MaximumValue – ExpectedReading Appendix D Test Equipment Used Description Appendix DModel No Trace No Agilent E1441A Function Gain and Linearity Agilent E1441A Frequency AccuracyAgilent E1441A DC Function Offset Appendix D Appendix D Agilent E1441A AC Amplitude High Z Appendix D Agilent E1441A AC Amplitude 50 Ohms Agilent E1441A Amplitude Flatness Agilent E1441A AM ModulationAppendix D Agilent E1441A Square Wave Duty Cycle Optional Performance Verification TestsAgilent E1441A Distortion Appendix D Appendix D Index Symbols CODE, STATe, AVERage?, CFACtor?, POINts?, PTPeak?, ALL,CATalog?, FREE?, IDN?, 124, OPC, 124, 126 *OPC? FM, 32, FSK, 41,ERRor STATe, STATe?, DELete, RST, 124, SRE?, 124, STB?, 124,DEPTh, DEPTh?, INTernal FREQuency, FUNCtion, WAI, 124, Vpp, 25, Vrms, 25,