Freqauto, Hold, Voltage or current | Agilent Technologies 81101A

Programming Reference

SCPI Instrument Command List

Command	:FREQ:AUTO
Long	[:SOURce]:FREQuency[:CW:FIXed]:AUTO
Form	Event
Parameter	ONCE
*RST value	Not applicable
Description	Use this command to measure the frequency at the CLK-IN connector. If
	the CLK-IN connector is the selected pulse frequency source, you can
	then read the measured value with :FREQ?
Example	To measure and read the frequency at the CLK-IN connector:
	:TRIG:SOUR EXT	Select ext CLK-IN as pulse trigger
	:FREQ:AUTO ONCE	Measure frequency at CLK-IN
	:FREQ?	Query pulse frequency

Command	:HOLD
Long	[:SOURce]:HOLD
Form	Set & Query
Parameter	VOLTage CURRent
*RST value	VOLT
Description	Use this command to enable either of the [:SOURce]:VOLTage or
	[:SOURce]:CURRent subsystems.
	You can control the signal levels of the instrument’s OUTPUT in terms of
	voltage or current.

Page 55

Image 55

Agilent Technologies 81101A Freqauto, Hold, Use this command to enable either of the SOURceVOLTage or, Voltage or current

81101A specifications

Agilent Technologies 81101A is a high-performance pulse generator designed to meet the rigorous demands of today's electronic testing environments. This versatile instrument is crucial for engineers and researchers who require precise timing characteristics and reliability for their testing applications.

One of the standout features of the 81101A is its ability to generate fast, precise pulses with rise and fall times of less than 1 ns. This capability makes it ideal for testing high-speed digital circuits, as it can accurately simulate signal behavior in real-world conditions. The generator operates across a frequency range of DC to 1 GHz, allowing it to cater to a variety of applications, including telecommunications, semiconductor testing, and signal integrity investigations.

The 81101A is equipped with advanced modulation capabilities, including amplitude modulation, frequency modulation, and pulse-width modulation. These features enable users to create complex waveforms that can mimic real-world signals. Additionally, the generator supports dual-channel operation, allowing simultaneous pulse generation on two outputs, which is particularly useful for testing differential signaling schemes.

Another significant characteristic of the 81101A is its comprehensive range of output formats. It supports single-ended and differential outputs, which can be essential for measuring the performance of various devices under different operating conditions. The instrument also offers a wide range of output amplitudes, from a few millivolts to several volts, making it flexible enough to cater to a variety of testing requirements.

The user interface of the 81101A is intuitive, featuring a large graphical display that simplifies waveform configuration and real-time monitoring. This interface allows engineers to easily set parameters and visualize pulse characteristics, reducing the time required for setup and configuration.

In terms of connectivity, the 81101A is designed to integrate seamlessly into existing test environments. It includes standard interfaces such as GPIB, USB, and LAN, facilitating automated testing procedures and communication with other laboratory equipment.

Overall, the Agilent Technologies 81101A pulse generator is an essential tool for engineers seeking precise and versatile signal generation capabilities. With its high-frequency performance, advanced modulation options, and user-friendly features, it remains a valuable asset in electronic testing and research applications.

Contents

Agilent 81101A 50 MHz Pulse Generator Front Panel Display and Softkeys Agilent 81101A 50 MHz Pulse Generator Copyright Limitation of Warranty Safety Summary Do Not Operate in an Explosive Atmosphere Safety Symbols About this Book VOLTageHIGH Contents Contents General Programming Aspects GP-IB Interface Bus Agilent 81101A Remote Control DISPlay OFF Programming RecommendationsSOURcePULSeDOUBle1STATe ONOFF. Sufficient to use # enable the output # set default settings# switch off display update # switch off error check Command Parameter Description Common Command Summary Status Model Transition Filters Condition RegisterEvent Register QUEStionable OPERation Enable RegisterRegisters in Group Status Group CONDition EVENt Standard Event Status Group Status ByteBit Description This Status Group is not used in the instrument OPERation Status GroupAlways Bit QUEStionable QUEStionable Status Group Programming Reference See Agilent 81101A Scpi Command Summary High DOUBle1 STATe KEY SET Parameter RST, Default Values Default Values, Standard Settings Auto KEY LEVel SLOPe POSitive SOURce IMMediate ARM Event detection layer Programming the Instrument Trigger Modes Triggered ContinuousGated Pulse period Source TRIGger SOURce External WidthPulses Burst Scpi Instrument Command List Armfreq Use the SOURceFREQuencyCWFIXed commandArmewid On OFF 1 Armlev Armimp 10.00 ∝s ArmperNs to 999.5 s Edge LEVel Frequency of the arming signalSignal Armsens Disp Armsour Mmemcdir MMEMCAT? Mmemdel MmemcopyMmeminit Mmemstorstat MmemloadstatFilename,A 50.0 Ω To switch on the outputOUTP1IMP OUTP1IMPEXT NORMal INVerted OUTP1POLCURR1 CURR1OFFSet To program the amplitude current of the output signalOffset OUTPutIMPedanceEXTernal CURR1HIGH SOURceCURRent subsystem CURR1LOW CURR1LIM CURR1LIMSTAT CURR1LIMLOW Freq Voltage or current Use this command to enable either of the SOURceVOLTage orFreqauto Hold SOURcePULSeDELay1HOLD PRATio With SOURcePULSeDELay Period is varied rather than the absolute pulse width use PULSDCYC110.0% derived from width and period 001% to 99.9%, depends on width, transition & period PULSDEL1HOLD SOURcePULSeDELay1HOLD TimeTime PRATio PULSDOUB1 To set the pulse delay to 50% of periodPULSDEL1UNIT Parameter is programmed to a value without a unit suffix To set and hold the double-pulse delay SOURcePULSeDOUBle1DELayHOLD TimePULSDOUB1DEL PULSDOUB1DELUNIT To set the double-pulse delay to 50%PULSDOUB1DELHOLD TIMEPRATio Pulsper PULSHOLD1 PULSTDEL1 Pulsperauto Pulse width To program the pulse width by means of the delay parametersWhen the pulse width is varied PULSTRAN1HOLD PULSTRAN1 PULSTRAN1UNIT To set the leading and trailing edges independently PULSTRAN1TRA PULSTRIG1VOLT PULSTRAN1TRAAUTO Roscsour PULSWIDT1 MHz or 10 MHz To set up the external PLL referenceRoscextfreq MHz SOURceVOLTage subsystem Numeric Parameter suffix V with engineering prefixes Specified current limits VOLT1OFFSetWith Amplitude, see To +10 To 10.0 V 50 Ω into 50 Ω VOLT1HIGHWith low level, see 500 mV To set the low level voltage VOLT1LOWWith high level, see To 9.9 V 50 Ω into 50 Ω VOLT1LIMLOW VOLT1LIM VOLT1LIMSTAT Command STATusOPERationTo set and activate the high and low voltage limits PTR NTR This commandCommand STATusQUEStionable Status Group Register STATusQUEStionableNTRansition STATusQUEStionableENABleSTATusQUEStionableEVENt? STATusQUEStionableCONDition? SYSTERR? Systchec No key pressed Query only SystkeyNo suffix allowed Key Description Softkey Cursor Up Cursor Down Cursor Left Cursor Right Command Systpres Systsec SYSTVERS? SystsetSYSTWARN? TRIGCOUNt SYSTWARNSTR?Separator between the messages SYSTWARNBUFF? 50 Ω or 10 kΩ Triggered by a positive edge at the EXT InputEXT Input Trigimp Trigslop TriglevTrigsour IMMediate INTernal1 Pulse period sources set by TrigsourPulse period source TRIGSOURce Scpi Instrument Command List Warranted Performance TemperaturePulse Generator Used by the instrument Agilent 81112 a Declaration of Conformity Maximum Dimensions H x W x D Agilent 81101A SpecificationsSafety Power requirements Acoustic Noise Emission WeightWarranty Recalibration period Period Agilent 81101A PeriodGlitch-free timing changes Period can also be entered as frequency Width Agilent 81101A DelayDelay Agilent 81101A Width Transition Times Agilent 81101A Double Pulse DelayDouble Pulse Delay Agilent 81101A Transition Times Level Parameters Agilent 81101A External Load compensation Pulse Performance Agilent 81101A Level Specifications 50 Ω into 50 Ω 1k Ω into 50 ΩLevel Parameters Pulse Performance Input Specifications Agilent 81101A Phase Locked Loop PLLClock / PLL Reference Input Burst Parameters Agilent 81101A Pulses ModeBurst Mode External Clock Externally Gated Externally TriggeredGenerate continuous pulses, double pulses, or bursts Strobe Output Trigger Output Specifications Agilent 81101AStrobe Output Specifications Agilent 81101A Trigger Output Mode From Value Typical DelaysTyp Memory Card OverprogrammingHelp Key Non-Volatile Memory SH1, AH1, T6, L4, SR1, RL1, PP0, DC1, DT1,C0 Function CodeProgramming Times Operates according to Ieee standard 488.2, 1987 and Scpi 105 Pulse Parameter Definitions Pulse Width Trigger DelayTime Reference Point Pulse Period Interchannel Delay Skew Pulse DelayInterval between leading edge medians of the double pulses Linearity Transition Time108 109 JitterStability Pulse Levels Settling Time Preshoot, Overshoot, Ringing110 111 Repeatability 112 Gated Symbols113 Burst Jitter 114Period 115 Safety 116 Front Panel Controls Page Manual Changes Model 81101A Index of Manual Change Manual Frame Errata Manual Change Declaration of Conformity

Agilent Technologies 81101A manual Freqauto, Hold, Voltage or current

Models: 81101A

:FREQ:AUTO

ONCE

Description

To measure and read the frequency at the CLK-IN connector:

:HOLD

VOLT

Description

Use this command to enable either of the [:SOURce]:VOLTage or

[:SOURce]:CURRent subsystems.

voltage or current.

81101A specifications