Roscextfreq, MHz or 10 MHz | Agilent Technologies 81101A guide

		Programming Reference
		SCPI Instrument Command List
Example	To set up the external PLL reference:
	:ROSC:SOUR EXT	Set external PLL reference (CLK-IN)
	:ROSC:EXT:FREQ 10 MHZ	Set expected PLL reference frequency to
		10 MHz

Command	:ROSC:EXT:FREQ
Long	[:SOURce]:ROSCillator:EXTernal:FREQuency
Form	Set & Query
Parameter	Numeric
*RST value	5 MHz
Specified limits	5 MHz or 10 MHz
Description	Use this command to set/read the expected reference frequency for the
	PLL at the CLK-IN connector. The external reference can be a 5 or
	10 MHz signal. Note that if you program any value other than the two
	specified values, the value will be set to the nearest of the two specified
	values.
Example	To set up the external PLL reference:
	:ROSC:SOUR EXT	Set external PLL reference (CLK-IN)
	:ROSC:EXT:FREQ 10MHZ	Set expected PLL reference frequency to
		10 MHz

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Agilent Technologies 81101A manual Roscextfreq, MHz or 10 MHz, Values, To set up the external PLL reference

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 Programming Recommendations DISPlay OFFSOURcePULSeDOUBle1STATe ONOFF. Sufficient to use # switch off display update # set default settings# switch off error check # enable the output Command Parameter Description Common Command Summary Status Model Condition Register Transition FiltersEvent Register Registers in Group Status Group CONDition Enable RegisterEVENt QUEStionable OPERation Status Byte Standard Event Status GroupBit Description OPERation Status Group This Status Group is not used in the instrumentAlways 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 Continuous TriggeredGated Pulses External WidthBurst Pulse period Source TRIGger SOURce Scpi Instrument Command List Armewid Use the SOURceFREQuencyCWFIXed commandOn OFF 1 Armfreq Armlev Armimp Armper 10.00 ∝sNs to 999.5 s Signal Frequency of the arming signalArmsens Edge LEVel Disp Armsour Mmemcdir MMEMCAT? Mmemcopy MmemdelMmeminit Mmemloadstat MmemstorstatFilename,A OUTP1IMP To switch on the outputOUTP1IMPEXT 50.0 Ω OUTP1POL NORMal INVertedCURR1 Offset To program the amplitude current of the output signalOUTPutIMPedanceEXTernal CURR1OFFSet CURR1HIGH SOURceCURRent subsystem CURR1LOW CURR1LIM CURR1LIMSTAT CURR1LIMLOW Freq Freqauto Use this command to enable either of the SOURceVOLTage orHold Voltage or current SOURcePULSeDELay1HOLD PRATio With SOURcePULSeDELay 10.0% derived from width and period PULSDCYC1001% to 99.9%, depends on width, transition & period Period is varied rather than the absolute pulse width use SOURcePULSeDELay1HOLD Time PULSDEL1HOLDTime PRATio PULSDEL1UNIT To set the pulse delay to 50% of periodParameter is programmed to a value without a unit suffix PULSDOUB1 SOURcePULSeDOUBle1DELayHOLD Time To set and hold the double-pulse delayPULSDOUB1DEL PULSDOUB1DELHOLD To set the double-pulse delay to 50%TIMEPRATio PULSDOUB1DELUNIT Pulsper PULSHOLD1 PULSTDEL1 Pulsperauto When the pulse width is varied To program the pulse width by means of the delay parametersPULSTRAN1HOLD Pulse width PULSTRAN1 PULSTRAN1UNIT To set the leading and trailing edges independently PULSTRAN1TRA PULSTRIG1VOLT PULSTRAN1TRAAUTO Roscsour PULSWIDT1 Roscextfreq To set up the external PLL referenceMHz MHz or 10 MHz SOURceVOLTage subsystem Numeric Parameter suffix V with engineering prefixes With Amplitude, see VOLT1OFFSetTo +10 Specified current limits With low level, see VOLT1HIGH500 mV To 10.0 V 50 Ω into 50 Ω With high level, see VOLT1LOWTo 9.9 V 50 Ω into 50 Ω To set the low level voltage VOLT1LIMLOW VOLT1LIM Command STATusOPERation VOLT1LIMSTATTo set and activate the high and low voltage limits Command STATusQUEStionable This commandStatus Group Register PTR NTR STATusQUEStionableEVENt? STATusQUEStionableENABleSTATusQUEStionableCONDition? STATusQUEStionableNTRansition SYSTERR? Systchec No suffix allowed SystkeyKey Description No key pressed Query only Softkey Cursor Up Cursor Down Cursor Left Cursor Right Command Systpres Systsec Systset SYSTVERS?SYSTWARN? Separator between the messages SYSTWARNSTR?SYSTWARNBUFF? TRIGCOUNt EXT Input Triggered by a positive edge at the EXT InputTrigimp 50 Ω or 10 kΩ Triglev TrigslopTrigsour Pulse period source Pulse period sources set by TrigsourTRIGSOURce IMMediate INTernal1 Scpi Instrument Command List Pulse Generator TemperatureUsed by the instrument Warranted Performance Agilent 81112 a Declaration of Conformity Safety Agilent 81101A SpecificationsPower requirements Maximum Dimensions H x W x D Warranty WeightRecalibration period Acoustic Noise Emission Glitch-free timing changes PeriodPeriod can also be entered as frequency Period Agilent 81101A Delay Agilent 81101A DelayWidth Width Agilent 81101A Double Pulse Delay Agilent 81101A Double Pulse DelayTransition Times Transition Times Agilent 81101A Level Parameters Agilent 81101A External Load compensation Level Parameters Level Specifications 50 Ω into 50 Ω 1k Ω into 50 ΩPulse Performance Pulse Performance Agilent 81101A Phase Locked Loop PLL Input Specifications Agilent 81101AClock / PLL Reference Input Burst Mode Pulses ModeExternal Clock Burst Parameters Agilent 81101A Externally Triggered Externally GatedGenerate continuous pulses, double pulses, or bursts Strobe Output Specifications Agilent 81101A Trigger Output Specifications Agilent 81101ATrigger Output Strobe Output Typical Delays Mode From ValueTyp Help Key OverprogrammingNon-Volatile Memory Memory Card Programming Times Function CodeOperates according to Ieee standard 488.2, 1987 and Scpi SH1, AH1, T6, L4, SR1, RL1, PP0, DC1, DT1,C0 105 Pulse Parameter Definitions Time Reference Point Trigger DelayPulse Period Pulse Width Pulse Delay Interchannel Delay SkewInterval between leading edge medians of the double pulses Transition Time Linearity108 Stability JitterPulse Levels 109 Preshoot, Overshoot, Ringing Settling Time110 111 Repeatability 112 113 SymbolsBurst Gated 114 JitterPeriod 115 Safety 116 Front Panel Controls Page Manual Changes Model 81101A Index of Manual Change Manual Frame Errata Manual Change Declaration of Conformity

To set up the external PLL reference:

:ROSC:EXT:FREQ

5 MHz

5 MHz or 10 MHz

Description

values.

To set up the external PLL reference:

81101A specifications