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Agilent Technologies E1441A user service Ext Trig / FSK / Burst Input Terminal, Figure, Chapter

Models: E1441A

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Ext Trig / FSK / Burst Input Terminal

Ext Trig / FSK / Burst Input Terminal

command module by sending the IEEE-488 Group Execute Trigger (GET) message.

The input requirement for an external trigger, FSK input or Burst input is a TTL positive-going (when TRIG:SLOPE is POS) or negative-going (when TRIG:SLOPE is NEG) pulse that must be >2 microsecond in duration.

The Ext/FSK/Burst Input terminal is used in the following modes:

Figure 2-14.

Triggered Sweep Mode: Execute TRIG:SOUR EXT or TTLT<0-7> to enable the triggered sweep mode (sweeps must be enabled). When the edge (polarity set by TRIG:SLOPE) of a TTL pulse is received on the Ext Trig terminal or VXIbus TTLTRG line, the function generator outputs a single sweep.

Externally-Modulated FSK Mode: To enable the externally-modulated mode, execute FSK:SOUR EXT when FSK is enabled. When a low TTL level is present, the FSK carrier frequency is output. When a high TTL level is present, the FSK “hop” frequency is output.

Counted Burst Mode: Execute TRIG:SOUR EXT to enable the counted burst mode (burst must be enabled). When the rising edge of a TTL pulse is received, the function generator outputs a burst waveform with the specified number of cycles.

External Gated Burst Mode: To enable the external gated mode, execute BM:SOUR EXT when burst is enabled. When a high TTL level is present, the function generator outputs the carrier waveform. When a low TTL level is present, the output is disabled.

54 Agilent E1441A Application Information

Chapter 2

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Agilent Technologies Ext Trig / FSK / Burst Input Terminal, Figure, Agilent E1441A Application Information, Chapter

Contents

E1441-90003 User/Service and SCPI Programming ManualWhere to Find it - Online and Printed Information Agilent E1441APage Chapter ContentsEdition ChapterAppendix B ChapterAppendix A Appendix CPerformance Verification Tests 6 Contents Certification AGILENT TECHNOLOGIES WARRANTY STATEMENTDURATION OF WARRANTY: 1 year U.S. Government Restricted RightsTrademarks Safety SymbolsDocumentation History WARNINGSMeasurement Product Generation Unit SafetyDECLARATION OF CONFORMITY Conforms with the following European DirectivesNotes Notes Notes Function/Arbitrary Waveform Generator Module SetupAgilent E1441A ChapterSetting the Module Address Switch Figure 1-1.Setting the Logical AddressChapter Installing into the Mainframe Interrupt PriorityOption 001 Phase-Lock10 MHz Reference Terminals Faceplate Indicators and ConnectorsFaceplate Indicators Standard Input/Output TerminalsInitial Operation Chapter Functional Capabilities Output ConfigurationAgilent E1441A Application Information ChapterValid Function/ Modulation Modes Table TableFUNCtion:SHAPe SIN|SQU|TRI|RAMP|NOIS|USER|DC Chapter22 Agilent E1441A Application Information TableFREQuency <frequency>|MINimum|MAXimum ChapterParameter 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 Amplitude Modulation AM AM Carrier Waveform ShapeAmplitude Modulation Depth Amplitude Modulating Waveform ShapeAmplitude Modulating Waveform Frequency FREQuency <frequency>|MINimum|MAXimumFrequency Modulation FM Amplitude Modulating SourceFM Carrier Waveform Shape FM Carrier FrequencyFM Peak Frequency Deviation 32 Agilent E1441A Application InformationChapter “Counted Burst Mode” on page “Burst Phase” on page•“Burst Modes” on page “Gated Burst Mode” on pagetrigger source The command sequence to configure this mode isThe command sequence to configure this mode is 34 Agilent E1441A Application InformationGated Burst Mode Burst Trigger Source For Counted Burst ModeEXTernal IMMediateINTernal TTLTRG<n>Maximum Frequency Number of Arb PointsMinimum Frequency Carrier FrequencyBurst Count BM:NCYCles <# cycles>|INFinity|MINimum|MAXimum Use the following command to set the burst countUse the following command to set the burst rate BM:INTernal:RATE <frequency>|MINimum|MAXimum•“FSK “Hop” Frequency” on page Frequency-Shift Keying FSK Modulation•“FSK Carrier Frequency” on page •“FSK Rate” on page •“FSK Hop Source” on pageFREQuency <frequency>|MINimum|MAXimum Use the following command to set the frequencyUse the following command to set the FSK rate FSKey:FREQuency <frequency>|MINimum|MAXimum42 Agilent E1441A Application Information Internal Hop SourceExternal Hop Source Chapter•“Sweep Time” on page •“Sweep Mode” on page Sweep Start and Stop Frequencies•“Sweep Start and Stop Frequencies” on page •“Sweep Trigger Source” on pageSweep Trigger Source External Sources Internal SourceTRIGger:SOURce IMMediate|EXTernal|TTLTRG<0-7>|BUS Sweep Trigger Signal TRIG:SOUR INT shownFigure 2-9.Frequency Sweep with Internal Trigger ChapterArbitrary Waveforms Creating Arbitrary WaveformsCreating and Storing an Arbitrary Waveform 48 Agilent E1441A Application Information WaveformsFigure ChapterPHAS:ADJ Phase-Lock Capabilities OptAPPL:SIN 10E+6, 90DEGFigure To Phase Lock Multiple Function Generatorsrequires Option 50 Agilent E1441A Application InformationTo Phase Lock Using the Counted Burst Mode Send these commands to both function generatorsrequires Option Triggering the Function Generator Trigger SlopeTrigger Source Choices Trig / FSK / Burst Input Terminal” on page Internal TriggeringExternal Triggering Including TTLTRG lines Software BUS Triggering54 Agilent E1441A Application Information Ext Trig / FSK / Burst Input TerminalFigure ChapterSystem-RelatedOperations Firmware Revision Query SCPI Language Version QueryFeature Power-OnandReset State Power-Onand Reset StateProgram Example Programs Application Program ExamplesCLanguage Programs Compiling and Linking a C Burst Modulation ProgramChapter 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 62 Agilent E1441A Application Information ChapterAgilent E1441A Application Information end of main Error handling functionChapter close the device session */ viClosefuncgen64 Agilent E1441A Application Information ChapterAgilent E1441A SCPI Command Reference Command Index by FunctionChapter Modulation Commands 66 Agilent E1441A SCPI Command ReferenceChapter Trigger Commands Sweep CommandsArbitrary Waveform Commands Agilent E1441A SCPI Command ReferenceStatus Reporting Commands System-RelatedCommandsCalibration Commands 68 Agilent E1441A SCPI Command ReferenceAgilent E1441A SCPI Command Reference The IEEE-488.2Common CommandsOption 001 Phase-LockCommands ChapterSCPI Command Format Command FundamentalsCommon Command Format Abbreviated CommandsLinking Commands Implied CommandsParameters SCPI Command Reference Command GuidesCOUNt? CALibrationCALibration? Subsystem SyntaxSECure:CODE SECure:STATeParameters SECure:STATe? SETupSETup? STRingVALue? STRing?VALue ParametersDATA VOLATILESubsystem Syntax DAC VOLATILE ATTRibute:AVERage? ATTRibute CFACtor?Downloading a Binary Block of Data 80 Agilent E1441A SCPI Command Reference ATTRibute:POINts?ATTRibute PTPeak? ChapterAgilent E1441A SCPI Command Reference CATalog?COPY ChapterDELete DEL:ALL NVOLatile:CATalog?NVOLatile:FREE? BORDer? FORMatBORDer •Related CommandsSTATe:RECall:AUTO MEMorySTATe:DELete •Related Commands: *RCL, *SAVSTATe:RECall:AUTO? Comments • Returned Value: 0 orLOAD? OUTPutLOAD ParametersTRIGger:IMMediate SYNCSYNC? TRIGger:STATeenable TTLTRG2 line to source a trigger TTLTrg<n>:STATe?Agilent E1441A SCPI Command Reference enable TTLTRG7 line to source a triggerSubsystem Syntax PHASe PHASeADJust Only valid with OptionUNLock:ERRor:STATe? ADJust?UNLock:ERRor:STATe REFerenceSubsystem Syntax SOURce92 Agilent E1441A SCPI Command Reference ChapterParameters Amplitude Modulation AM CommandsAM:DEPTh •*RST Condition: 100%AM:INTernal:FUNCtion? AM:DEPTh?AM:INTernal:FUNCtion AM:INTernal:FREQuencyAM:STATe? AM:SOURce?AM:STATe •*RST Condition: BOTHAPPLy Commands APPLy Command ParametersSyntax in the waveform see below 98 Agilent E1441A SCPI Command Reference Chapter±10 Vdc into an open circuit APPLy:RAMP APPLy:DCAPPLy NOISe APPLy:SINusoidAPPLy:USER APPLy:SQUareAPPLy:TRIangle APPLy?BM NCYCles? BURST MODULATION COMMANDSBM:NCYCles BurstCountBM:INTernal:RATE BM:PHASeBM:PHASe? ParametersBM:SOURce FM COMMANDSBM:INTernal:RATE? BM:SOURce?FM:INTernal:FREQuency FM:DEViationFM:DEViation? ParametersFM:INTernal:FUNCtion? FM:INTernal:FREQuency?FM:INTernal:FUNCtion FM:STATeAgilent E1441A SCPI Command Reference FREQuency?FREQuency:STARt ParametersFREQuency:STOP Frequency-ShiftKeying FSK CommandsFREQuency:STARt? FREQuency:STOP?FSKey INTernal RATE FSKey:FREQuencyFSKey FREQuency? FSKey:INTernal:RATE?FSKey:STATe Selecting an Arbitrary WaveformFSKey:SOURce? FSKey:STATe?Agilent E1441A SCPI Command Reference FUNCtion:USER?FUNCtion:SHAPe Chapter112 Agilent E1441A SCPI Command Reference FUNCtion:SHAPe?PULSe:DCYCle ParametersSWEep:SPACing? PULSe:DCYCle?SWEep:SPACing SWEep:TIMEVOLTage SWEep:STATeSWEep:STATe? 114 Agilent E1441A SCPI Command ReferenceAgilent E1441A SCPI Command Reference VOLTage?VOLTage:OFFSet ParametersVOLTage:OFFSet? VOLTage:UNITVOLTage:UNIT? QUEStionable :CONDition? PRESetSTATus QUEStionable :EVENt?QUEStionable :ENABle QUEStionable :ENABle?Agilent E1441A SCPI Command Reference FigureChapter VERSion? ERRor?SYSTem Subsystem SyntaxSLOPe? TRIGgerSLOPe SOURcethe *TRG IEEE-488.2common command SOURce? Related Commands *RST Condition TRIG SOUR IMM124 Agilent E1441A SCPI Command Reference IEEE 488.2Common CommandReferenceCommand CategoryComments • Coupled command: No ESE?ESR? •Related Commands: STATus:PRESetOPT? option IDN?OPC? Comments • Coupled command: NoComments • Coupled command: No PSC?•Coupled command: No •*RST Condition: nonePower-OnCondition no bits are enabled •Coupled command: NoComments • Coupled command: No ParametersTST? SRE?STB? Comments • Coupled command: NoPower-Onand Reset State Agilent E1441A Power-Onand Reset StateFeature 130 Agilent E1441A SCPI Command ReferenceSCPI Command Quick Reference Agilent E1441A SCPI Command ReferenceChapter 132 Agilent E1441A SCPI Command Reference ChapterAgilent E1441A SCPI Command Reference SOURceChapter 134 Agilent E1441A SCPI Command Reference ChapterSinewave Spectral Purity Agilent E1441A SpecificationsAppendix A Frequency CharacteristicsResolution Signal Characteristics Square waveOutput Characteristics 1,5 Amplitude into 50Ω:2 Triangle, Ramp, ArbFrequency Sweep CharacteristicsModulation Faceplate Inputs5Cooling/Slot System Characteristics Configuration TimesArb Download Times Operating EnvironmentFaceplate Output: Ref Out terminal Option 001 Specifications Timebase AccuracyPhase Offset Trigger140 Agilent E1441A Specifications Appendix AAppendix B Agilent E1441A Error MessagesExecution Errors 102 Syntax error112 Program mnemonic too long 108 Parameter not allowed109 Missing parameter 113 Undefined header158 String data not allowed 170to -178 Expression errors151 Invalid string data 161 Invalid block data221 Settings conflict; frequency has been adjusted 221 Settings conflict; offset has been adjusted222 Data out of range; frequency 222 Data out of range222 Data out of range; amplitude 222 Data out of range; offset580Phase-lockedloop is unlocked 350 Too many errors550Command not allowed in local 440 Query UNTERMINATED after indefinite response590I/O processor reset 601Trigger test failed Self-TestErrorsCalibration Errors 701Cal security disabled by jumper703Invalid secure code 707Cal signal measurement out of range702Cal secured 704Secure code too long851Negative offset gain cal required CAL:SETup Arbitrary Waveform Errors850Cal setup invalid 852Flatness DAC gain cal required CAL:SETup786Cannot delete a built-inarb waveform 783Arb waveform name too long785Specified arb waveform does not exist 788Cannot copy to VOLATILE arb waveformOption 001 Phase-LockErrors 580Phase-lockedloop is unlocked152 Agilent E1441A Error Messages Appendix BAgilent E1441A Function Generator Tutorial Appendix CDirect Digital Synthesis 154 Agilent E1441A Function Generator Tutorial Figure C-2Figure C-3 Appendix CSignal Imperfections Appendix CAgilent E1441A Function Generator Tutorial Figure C-5 Output Amplitude ControlFigure C-4 156 Agilent E1441A Function Generator TutorialAppendix C Floating Signal GeneratorsAttributes of AC Signals Agilent E1441A Function Generator Tutorial158 Agilent E1441A Function Generator Tutorial Modulation1 + D ⋅ Am 〈 t〉 ⋅ sin2π ⋅ Fc ⋅ T Appendix CFor wideband FM Appendix CAgilent E1441A Function Generator Tutorial Start Frequency + Stop FrequencyDeviation = Hop Frequency – Carrier Frequency 160 Agilent E1441A Function Generator TutorialAppendix C 624for FM Table C-1for AM Appendix Cy = mX + b Fs = 1 / 9 x 200 ∝s = 555.555 kHzPoints P = C/S / Fs = 162 Agilent E1441A Function Generator TutorialService Procedures Appendix DClosed-CaseElectronic Calibration Agilent Technologies Calibration ServicesAutomated Verification and Calibration Procedures Calibration IntervalRecommended Test Equipment Test ConsiderationsPerformance Verification Tests Frequency Verification Quick Performance CheckPerformance Verification Tests 168 Service Procedures Function Gain and Linearity VerificationDC Function Offset Verification Table D-4.DC Function Offset VerificationTable D-5.AC Amplitude Verification High Z AC Amplitude VerificationService Procedures Appendix D170 Service Procedures Table D-6.AC Amplitude Verification 50 OhmsAppendix D Table D-7.Amplitude Flatness Verification Amplitude Flatness VerificationService Procedures Appendix DAM Modulation Depth Verification Optional Performance Verification TestsSquare Wave Duty Cycle Verification Table D-10.Distortion Verification Distortion VerificationService Procedures Appendix DTo re-secure Calibration Security CodeTo unsecure for calibration To change security codeUnsecuring the Function Generator Calibration Count Calibration MessageGeneral Calibration/Adjustment Procedure Calibration ExampleFrequency and Burst Rate Adjustment Aborting a Calibration in ProgressFunction Gain and Linearity Adjustment AC Amplitude Adjustment High-Z Modulation Adjustment 182 Service Procedures AC Amplitude Adjustment 50 OhmsTable D-15.50 Ohm Adjustment Setup Appendix DService Procedures 7.Repeat steps 4, 5 and 6 for SETUP 35 throughTable D-16.AC Amplitude 50 Ohms Adjustment Setups 8.Perform the “AC Amplitude Verification” on pageDC Output Adjustment Duty Cycle Adjustment AC Amplitude Flatness Adjustment1 kHz to 100 kHz Table D-22.AC Flatness Adjustment Setups Service ProceduresAppendix D Table D-24. Self-TestError Messages Error MessagesTable D-23.System Error Messages 188 Service ProceduresTable D-25.Calibration Error Messages Service ProceduresAppendix D Test Accuracy Ratio TAR Performance Test RecordTest Limits Measurement Uncertainty MaximumValue – ExpectedReadingAppendix D Model No Appendix DTest Equipment Used Description Trace NoAgilent E1441A DC Function Offset Agilent E1441A Frequency AccuracyAgilent E1441A Function Gain and Linearity Appendix DAgilent E1441A AC Amplitude High Z Appendix DAgilent E1441A AC Amplitude 50 Ohms Appendix DAgilent E1441A Amplitude Flatness Agilent E1441A AM ModulationAppendix D Agilent E1441A Distortion Optional Performance Verification TestsAgilent E1441A Square Wave Duty Cycle Appendix DAppendix D Symbols IndexCODE, STATe, AVERage?, CFACtor?, POINts?, PTPeak?, ALL,CATalog?, FREE?, IDN?, 124, ERRor STATe, STATe?, FM, 32, FSK, 41,OPC, 124, 126 *OPC? DELete,RST, 124, SRE?, 124, STB?, 124,DEPTh, DEPTh?, INTernal FREQuency, FUNCtion, Vpp, 25, Vrms, 25, WAI, 124,