Agilent 81130A Reference Guide

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Reference Guide

HP 81130A 400/660MHz Pulse/Data Generator

Front Panel Display and Softkeys

Mode / Parameter Area Modify / Enter Area

Use the CURSOR keys to

move the entry focus to a

mode, parameter format,

Channel 1

Column

parameter value

Channel 2

Column

Use the KNOB to select a

mode or modify parameters

and formats

Press ENTER or a UNIT key to

confirm parameter changes

ON Freq 50.00MHz OFF

OFF OFF

Entry

Focus

Delay DtyCyc

Press a SOFTKEY to access

the required entry screen

0ps

50.0%

Screen Selection Area

Delay 0ps Width 100.0ns

TIMING PATTERNLEVELSMODE/TRG

MODIFY

50.0

GRAPH

Press MORE key to access

the additional screen menus:

LIMITS TRG-LEV MEMCARD CONFIG

Reference Guide

HP 81130A 400/660 MHz

Pulse/Data Generator

HP Part No. 81130-91011

Printed in Germany November 1998

Edition 1.0, E1198

Notice

 1998 Hewlett-Packard GmbH Herrenberger Str. 110–140 71034 Boeblingen Germany

Warranty

This Hewlett-Packard product has a warranty against defects in material and workmanship for a period of three years from date of shipment. During the warranty period, Hewlett-Packard Company will, at its option, either repair or replace products that prove to be defective. For warranty service or repair, this product must be returned to a service facility designated by Hewlett-Packard. The Buyer shall pay Hewlett-Packard's round-trip travel expenses. For products returned to Hewlett-Packard for warranty service, the Buyer shall prepay shipping charges to HewlettPackard and Hewlett-Packard shall pay shipping charges to return the product to the Buyer. However, the Buyer shall pay all shipping charges, duties and taxes for products returned to Hewlett-Packard from another country. Hewlett-Packard warrants that its software and firmware designated by Hewlett-Packard for use with an instrument will execute its programming instructions when properly installed on that instrument. Hewlett-Packard does not warrant that the operation of the instrument software, or firmware, will be uninterrupted or error free.

Notice

Limitation of Warranty

The foregoing warranty shall not apply to defects resulting from improper or inadequate maintenance by the Buyer, Buyer-supplied software or interfacing, unauthorized modification or misuse, operation outside of the environmental specifications for the product, or improper site preparation or maintenance.

No other warranty is expressed or implied. Hewlett-Packard specifically disclaims the implied warranties of merchantability and fitness for a particular purpose.

Exclusive Remedies

The remedies supplied are the Buyer’s sole and exclusive remedies. Hewlett-Packard shall not be liable for any direct, indirect, special, incidental, or consequential damages, whether based on contract, tort or any other legal theory.

Assistance

Product maintenance agreements and other customer assistance agreements are available for Hewlett-Packard products. For any assistance, contact your nearest Hewlett-Packard Sales Office.

Certification

Hewlett-Packard Company certifies that this product met its published specifications at the time of shipment. Hewlett-Packard further certifies that its calibration measurements are traceable to the United States Institute of Standards and Technology, to the extent allowed by the Institute's calibrating facility, and to the calibration facilities of other International Standards Organization members.

About this Book

This guide provides reference information primarily for programming the HP 81130A via remote control.

Chapter 1 “General Programming Aspects” on page 15 gives general

hints for programming instruments like the HP 81130A using SCPI commands.

Chapter 2 “Programming Reference” on page 27 provides detailed

information on the SCPI commands supported by the instrument.

Chapter 3 “Specifications” on page 95 lists the instrument’s technical

specifications and provides exact definitions for the instrument’s parameters.

For an introduction and information on the HP 81130A’s user interface, please refer to the Quick Start Guide, p/n 81130-91010.

About this Book

Conventions Used in this Book

This book uses certain conventions to indicate elements of the HP 81130A’s user interface. The following table shows some examples:

Softkeys Press the MODE/TRG softkey to access the Mode/

Trigger screen.

Hardkeys Press the MORE key to switch to the alternative

softkey layout.

Alternate Keys Press SHIFT + 0 (ON/OFF1) to switch on output1.

The alternate key label—which is selected by pressing the SHIFT key—is given in parentheses.

Screen Quotes Move the entry focus down to P

turn the knob to select

INTERNAL

ULSE-PERIOD

PLL.

and

Entry Focus The highlight field, that can be moved with the

cursor keys, to change modes, parameters, or parameter formats.

:VOLTage:HIGH 3V

Full command for programming a 3 V high level. The upper case letters represent the short form of the command, which results in faster programming times.

*RST Common IEEE 488 command, to reset instru-

ment to default status.

Safety Information

Safety

This is a Safety Class 1 instrument (provided with terminal for protective earthing). Before applying power, verify that the correct safety precautions are taken (see the following warnings). In addition, note the external markings on the instrument that are described under Safety Symbols. Do not operate the instrument with its covers removed. Replace fuse only with specified type.

Warning

Before turning on the instrument, you must connect the protective earth terminal of the instrument to the protective earth conductor of the (mains) power cord. The mains plug must only be inserted in a socket outlet with a protective earth contact. Do not negate the protective action by using an extension power cord without a protective grounding conductor. Grounding one conductor of a two-conductor outlet is not sufficient protection.

Service instructions are for trained service personnel. To avoid dangerous electric shock, do not perform any service unless qualified to do so. Do not attempt internal service or adjustment unless another person, capable of rendering first aid and resuscitation, is present.

If you energize this instrument using an auto-transformer (for voltage reduction) make sure that the common terminal is connected to the earth terminal of the power source.

Whenever it is likely that the ground protection is impaired, you must make the instrument inoperative and secure it against any unintended operation.

Do not operate the instrument in the presence of flammable gases or fumes. Operation of any electrical instrument in such an environment constitutes a definite safety hazard.

Do not install substitute parts or perform any unauthorized modification to the instrument.

Safety Information

Capacitors inside the instrument may retain a charge even if the instrument is disconnected from its source of supply.

Safety Symbols

Instruction Manual symbol: The instrument is marked with this symbol when it is necessary for you to refer to the instruction manual in order to protect against damage to the instrument.

Protected conductor symbol.

In the manuals:

WARNING

CAUTION Cautions call attention to a procedure, practice, or the like, which, if not

Warnings call attention to a procedure, practice, or the like, which, if not correctly performed or adhered to, could result in personal injury or loss of life. Do not proceed beyond a Warning until the indicated conditions are fully understood and met.

correctly performed or adhered to, could result in damage to or destruction of part or all of the equipment. Do not proceed beyond a Caution until the indicated conditions are fully understood and met.

Safety Information

Contents

Notice ......................................................................................... 6

About this Book ......................................................................... 8

Safety Information .................................................................. 10

Chapter 1

Chapter 2

General Programming Aspects

The HP-IB Interface Bus ......................................................... 16

HP 81130A Remote Control .................................................... 17

Programming Recommendations ............................................ 18

Common Command Summary ................................................. 20

Status Model ............................................................................ 21

Programming Reference

HP 81130A SCPI Command Summary .................................... 28

Default Values, Standard Settings ......................................... 36

Programming the Instrument Trigger Modes ........................ 40

SCPI Instrument Command List ............................................ 44

xiii

Contents

Chapter 3 Specifications

Declaration of Conformity ..................................................... 96

HP 81130A Specifications ...................................................... 97

General ................................................................................................... 97

Timing Specifications ........................................................................... 99

Main Output Level Specifications ..................................................... 102

External Input, External Clock/PLL Reference Input .................... 103

Trigger Modes ...................................................................................... 105

Output Modes ...................................................................................... 106

Human Interface .................................................................................. 108

Memory ................................................................................................. 109

Remote Control ................................................................................... 109

Pulse Parameter Definitions ................................................ 111

xiv

1General Programming

Aspects

This chapter provides general information on writing HP-IB/SCPI programs for instruments like the HP 81130A.

Detailed information on programming the HP 81130A can be found in

Chapter 2 “Programming Reference” on page 27.

General Programming Aspects

The HP-IB Interface Bus

The Hewlett-Packard Interface Bus is the interface used for communication between a controller and an external device, such as the HP 81130A. The HP-IB conforms to IEEE standard 488-1987, ANSI standard MC 1.1, and IEC recommendation 625-1.

If you are not familiar with the HP-IB, please refer to the following books:

•

Hewlett-Packard Company: Publication 5952-0156, Tutor ial Description of Hewlett-Packard Interface Bus.

•

The Institute of Electrical and Electronic Engineers: IEEE Standard

488.1-1987, IEEE Standard Digital Interface for Programmable Instrumentation.

•

The Institute of Electrical and Electronic Engineers: IEEE Standard

488.2-1987, IEEE Standard Codes, Formats, and Common

Commands for Use with IEEE Standard 488.1-1987.

In addition, the commands not from the IEEE 488.2 standard are defined according to the Standard Commands for Programmable Instruments (SCPI). For an introduction to SCPI and SCPI programming techniques, refer to the following documents:

•

Hewlett-Packard Press (Addison-Wesley Publishing Company, Inc.): A Beginners Guide to SCPI by Barry Eppler, 1991.

•

The SCPI Consortium: Standard Commands for Programmable Instruments, published periodically by various publishers. To obtain a copy of this manual, contact your Hewlett-Packard representative.

General Programming Aspects

HP 81130A Remote Control

HP-IB Address You can only set the HP-IB address from the front panel of the instrument

(refer to the Quick Start Guide). The default HP-IB address is 10.

Modes of Operation

The HP 81130A has two modes of operation:

•

Local The instrument is operated using the front panel keys.

•

Remote After receiving the first command or query via the HP-IB, the

instrument is put into remote state. The front panel is locked. To return to local operating mode, press SHIFT (LOCAL).

General Programming Aspects

Programming Recommendations

Here are some recommendations for programming the instrument:

•

Start programming from the default setting. The common command for setting the default setting is:

*RST

•

Switch off the automatic update of the display to increase the programming speed. The device command for switching off the display is:

:DISPlay OFF

•

The SCPI standard defines a long and a short form of the commands. For fast programming speed it is recommended to use the short forms. The short forms of the commands are represented by upper case letters. For example the short form of the command to set 100 ns delay is:

:PULS:DEL 100NS

•

To improve programming speed it is also allowed to skip optional subsystem command parts. Optional subsystem command parts are depicted in square brackets, e.g.: set amplitude voltage of output 1: [SOURce]:VOLTage[1][:LEV el][:IMMed iate][:A MPLitude] . Sufficient to use: :VOLT 1.2V

•

For the commands to set the timing and level parameters, except of period/frequency, you can explicitly specify the output to be programmed (for compatibility reasons). If there is no output specified, the commands will set the default output 1.

So, for setting a high level of 3 Volts for output 1 the commands are:

:VOLT:HIGH 3V # sets high level of 3 V at out 1 :VOLT1:HIGH 3V # sets high level of 3 V at out 1

General Programming Aspects

Programming Recommendations

• It is recommended to test a new setting that will be programmed on the instrument by setting it up manually.

Enable the outputs so that the instrument’s error check system is on and possible parameter conflicts are immediately displayed.

When you have found the correct setting, then use this to create the program. In the program it is recommended to send the command for enabling outputs (for example, :OUTPut ON) as the last command.

• Selftest of the instrument can be invoked by the common command

*TST

• If it is important to know whether the last command is completed, then send the common command

*OPC?

General Programming Aspects

Common Command Summary

This table summarizes the IEEE 488.2 common commands supported by the HP 81130A:

Command Parameter Description

*CLS – Clear the status structure *ESE <0–255> Set the Standard Event Status register mask *ESE? – Read the state of the Standard Event Status enable register *ESR? – Read the state of the Standard Event Status event register *IDN? – Read the Instrument's Identification string *LRN? – Read the complete Instrument Setting *OPC – Set the Operation Complete bit when all pending actions

are complete *OPC? – Read the status of the Operation Complete bit *OPT? – Read the installed options *RCL <0–4> Recall a complete Instrument Setting from memory *RST – Reset the instrument to standard settings *SAV <1–4> Save the complete Instrument Setting to memory *SRE <0–255> Set the Service Request Enable Mask *SRE? – Read the Service Request Enable Mask *STB? – Read the Status Byte *TRG – Trigger *TST? – Execute instrument’s selftest *WAI – Wait until all pending actions are complete

Status Model

TIONABLE STATUS

QUES

Voltage Warning Current Warning

Timi ng War ning

Frequency Warning

Pattern Warning

Operation Complete

Query Error

Device Dependent Error

Execution Error Command Error

Power On

0 1 2 3 4 5 6 7 8 9

OPERation Status

(NOT USED)

0 1 2 3 4 5 6 7 8 9

Standard Event Status

0 1 2 3 4 5 6 7

MAV

SRQ

Status Byte

0 1 2 3 4 5 6 7

General Programming Aspects

Status Model

The instrument has a status reporting system conforming to IEEE 488.2 and SCPI. The above figure shows the status groups available in the instrument.

Each status group is made up of component registers, as shown in the following figure.

General Programming Aspects

Status Model

Condition Register

Hardware and Firmware condition

Transition Filters

1 0

PTR NTR

Event Register

Latched

Enable Register

Summary Bit

Condition Register

A condition register contains the current status of the hardware and firmware. It is continuously updated and is not latched or buffered. You can only read condition registers. If there is no command to read the condition register of a particular status group, then it is simply invisible to you.

Transition Filters

Transition filters are used to detect changes of state in the condition register and set the corresponding bit in the event register. You can set transition filter bits to detect positive transitions (PTR), negative transitions (NTR) or both. Transition filters are therefore read/write registers. They are unaffected by *CLS.

Event Register

An event register latches transition events from the condition register as specified by the transition filters or records status events. Querying (reading) the event register clears it, as does the *CLS command. There is no buffering, so while a bit is set, subsequent transition events are not recorded. Event registers are read only.

General Programming Aspects

Status Model

Enable Register

The enable register defines which bits in an event register are included in the logical OR into the summary bit. The enable register is logically ANDed with the event register and the resulting bits ORed into the summary bit. Enable registers are read/write, and are not affected by

or querying.

*CLS

Although all status groups have all of these registers, not all status groups actually use all of the registers. The following table summarizes the registers used in the instrument status groups.

Registers in Group

Status Group

QUEStionable

*ESR? *ESE *STB? *SRE

to query.

to set,

to query

to set,

OPERation

Standard Event Status

Status Byte

1 Present, but not used. COND and EVEN always 0. 2 Use 3 Use 4 Use 5 Use

CONDition NTR PTR EVENt ENABLe

√ √ √ √ √

xxxxx

xxx

to query

*ESE?

to query

*SRE?

√

General Programming Aspects

Status Model

Status Byte

The status byte summarizes the information from all other status groups. The summary bit for the status byte actually appears in bit 6 (RQS) of the status byte. When RQS is set it generates an SRQ interrupt to the controller indicating that at least one instrument on the bus requires attention. You can read the status byte using a serial poll or *STB?

Bit Description

0 Unused, always 0 1 Unused, always 0 2 Unused, always 0 3 QUESTionable Status Summary Bit 4 MAV—Message AVailable in output buffer 5 Standard Event Status summary bit 6 RQS; ReQuest Service 7 OPERation Status summary Bit, unused

Standard Event Status Group

Bit Description

0 Operation Complete, set by *OPC 1 Unused, always 0 2 Query Error 3 Device Dependent Error 4 Execution Error 5 Command Error 6 Unused, always 0 7 Power On

OPERation Status Group

This Status Group is not used in the instrument.

Bit Description

0 Unused, always 0 1 Unused, always 0 2 Unused, always 0 3 Unused, always 0 4 Unused, always 0 5 Unused, always 0 6 Unused, always 0 7 Unused, always 0 8 Unused, always 0 9 Unused, always 0

General Programming Aspects

Status Model

10 Unused, always 0 11 Unused, always 0 12 Unused, always 0 13 Unused, always 0 14 Unused, always 0 15 Always 0

General Programming Aspects

Status Model

QUEStionable Status Group

Bit QUEStionable

0 Voltage warning 1 Current warning 2 Time warning 3 Unused, always 0 4 Unused, always 0 5 Frequency warning 6 Unused, always 0 7 Unused, always 0 8 Unused, always 0 9 Pattern warning 10 Unused, always 0 11 Unused, always 0 12 Unused, always 13 Unused, always 0 14 Unused, always 0 15 Always 0

The QUEStionable Status group is used to report warning conditions amongst the voltage, current, pulse timing, frequency and pattern parameters. Warnings occur when a parameter, although not outside its maximum limits, could be causing an invalid signal at the output because of the actual settings and uncertainties of related parameters.

2Programming Reference

This chapter provides reference information on the following topics:

•

“HP 81130A SCPI Command Summary” on page 28

•

“Default Values, Standard Settings” on page 36

•

“Programming the Instrument Trigger Modes” on page 40

•

“SCPI Instrument Command List” on page 44

For general programming information, please refer to Chapter 1

“General Programming Aspects” on page 15.

Programming Reference

HP 81130A SCPI Command Summary

Command Parameter Description see page

:ARM

[:SEQuence[1] | :STARt]

[:LAYer[1]]

:LEVel

[:THReshold] :TERMination

:MODE

:SENSe :SOURce

:INITiate

:CONTinuous

:CHANnel

:MATH

(Trigger mode and source)

<value> Set/read threshold level at EXT INPUT

<value> Set/read the termination voltage at EXT IN-

PUT

GATed | STARted Set/read the trigger mode, if the source is

POSitive | NEGative Set/read trigger on edge or gate on level

EXT1| IMM | MAN Set/read trigger source

ON | OFF | 1 | 0 Starts or stops the instrument, if the arming

OFF|DIGital Set/read addition of channels of channels 1

IMMediate

not

(EXT INPUT| IMMediate | MAN key)

source is

& 2 at output 1

IMMediate

not

Programming Reference

HP 81130A SCPI Command Summary

Command Parameter Description see page

:DIGital

[:STIMulus]

:PATTern 50

:LOOP 47

:INFinite 48

[:STATe] :STARt

[:LEVel[1]]

[:COUNt] :STARt

:LENGth

:PRBS

:SEGMent[1|2|3|4]

:DATA[1|2] :LENGth

:PRESet[1|2] :TYPE[1|2]

[:STATe]

:UPDate

:SIGNal[1|2]

:FORMat

ON | OFF | 1 | 0 Enables/Disables the infinite loop

SEGM1 | SEGM2 | SEGM3 | SEGM4

<value> Set/read the segment loop count

SEGM1 | SEGM2 | SEGM3 | SEGM4

1 | 2 | 3 | 4 Set/read the number of segments within the

<base> Set/read the PRBS base (the same for all

<data> Set/read pattern data

<segment-length> Set/read the length of the segment (if the

[<n>,]<length> Set preset pattern with frequency CLOCK÷ n

DATA| PRBS|HIGH|LOW

OFF|ON|0|1 Switch PATTERN pulse-mode on or off

OFF|ON|ONCE Update the hardware with pattern data

RZ | R1 | NRZ Set/read data format of output channel

Set/read the start of the infinite loop (the segment to restart the output after the last bit of the last used segment)

Set/read the start segment for the counted segment loop

segment loop

PRBS segments!)

length is increased, ‘0’ bits are appended)

Set/read the type of the segment

Programming Reference

HP 81130A SCPI Command Summary

Command Parameter Description see page

:DISPlay 57

[:WINDow]

[:STATe]

:MMEMory

:CATalog? :CDIRectory :COPY

:DELete :INITialize :LOAD

:STATe

:STORe

:STATe

ON|OFF|1|0 Set/read frontpanel display state

[A:] Read directory of memory card

[<name>] Change directory on memory card

<source>[,A:],<dest> [,A: ]

<name>[,A:] Delete a file from memory card

[A:[DOS]] Initialize memory card to DOS format

<n>,<name> Load file from memory card to memory n

<n>,<name> Store memory n to memory card

Copy a file on memory card

:OUTPut[1|2] 60

[:NORMal]

[:STATe]

:COMPlement 60

[:STATe]

OFF|ON|1|0 Set/read normal output state

OFF|ON|1|0 Set/read complement output state

Programming Reference

HP 81130A SCPI Command Summary

Command Parameter Description see page

[:SOURce]

:CORRection[1|2]

:EDELay 61

[:TIMe]

:CURRent[1|2]

[:LEVel]

[:IMMediate]

[:AMPLitude] :OFFSet :HIGH :LOW

:LIMit

:HIGH :LOW :STATe

:FREQency

[:CW]

[:FIXed]

:AUTO

:HOLD[1|2]

<value> Set/read channel delay deskew

The CURRent and VOLTage subsystem cannot be used at the same time. Use the :HOLD command to select between them.

<value> Set/read channel amplitude current

<value> Set/read channel offset current

<value> Set/read channel high-level current

<value> Set/read channel low-level current

<value> Set/read maximum current limits

<value> Set/read minimum current limits

ON|OFF|1|0 Enable/Disable the current limits

<value> Set/read frequency of pulses

ONCE Do a frequency measurement at CLK IN

VOLT|CURR Switch between VOLTage and CURRent

command subtrees

Programming Reference

HP 81130A SCPI Command Summary

Command Parameter Description see page

[:SOURce]

:PHASe[1|2]

[:ADJust]

:PULSe

:DCYCle[1|2] :DELay[1|2]

:HOLD

:UNIT

:HOLD[1|2]

:PERiod

:AUTO :TDelay[1|2] :TRANsition[1|2] 73

:UNIT

[:LEADing]

:TRAiling :TRIGger[1]

:MODE

:POSition

:VOLTage 75

[:LEVel] [:IMMediate]

:WIDTh[1|2]

<value>

<value> Set/read channel phase

<value> Set/read channel dutycycle

<value> Set/read channel delay (to leading edge)

TIME|PRATio Hold absolute delay|delay as period fixed

with varying frequency

S|SEC|PCT|DEG| RAD

WIDTh | DCYCle | TDELay

<value> Set/read pulse period

ONCE Measure pulse period at CLK IN

<value> Set/read trailing edge delay

S|SEC|PCT Set/read transition-time units

<value> Set/read leading-edge transition

<value> Set/read trailing-edge transition

CONTinuous | STARt Set/read the mode of the trigger output sig-

1 | 2 | 3 | 4 Set/read the trigger output signal position

TTL | PECL | SYM | ECLGND | ECLN2V

<value> Set/read channel pulse-width

Set/read delay units

Hold Width|Dutycycle|Trailing edge delay fixed with varying frequency

nal generation (ignored if not in pattern mode)

Set/read TRIGGER OUTput levels

Programming Reference

HP 81130A SCPI Command Summary

Command Parameter Description see page

[:SOURce]

:ROSCillator

:SOURce :EXTernal

:FREQuency

:VOLTage[1|2] 77

[:LEVel]

[:IMMediate]

[:AMPLitude] :OFFSet :HIGH :LOW

:LIMit

[:HIGH] :LOW :STATe

INTernal|EXTernal Set/read PLL reference source

<value> Set/read frequency of external PLL

reference. Value will be rounded to 1 MHz, 2MHz, 5MHz or 10MHz.

<value> Set/read channel amplitude voltage

<value> Set/read channel offset voltage

<value> Set/read channel high-level voltage

<value> Set/read channel low-level voltage

<value> Set/read maximum voltage limit

<value> Set/read minimum voltage limit

ON|OFF|1|0 Enable|Disable the voltage limits

Programming Reference

HP 81130A SCPI Command Summary

Command Parameter Description see page

:STATus

:OPERation 82

[:EVENt]? :CONDition :ENABle :NTRansition

:PTRansition

:PRESet :QUEStionable 83

[:EVENt]? :CONDition? :ENABle :NTRansition

:PTRansition

Numeric Set/Read Operation enable register

Numeric Set/Read Operation negative-transition

Numeric Set/Read positive-transition register

Numeric Set/Read Questionable enable register

Numeric Set/Read Questionable negative-transition

Numeric Set/Read Questionable positive-transition

Read Operation event register

Read Operation condition register

Clear and preset status groups

Read Questionable event register

Read Questionable condition register

Programming Reference

HP 81130A SCPI Command Summary

Command Parameter Description see page

:SYSTem

:ERRor? :KEY :PRESet :SECurity 87

[:STATe] :SET :VERSion? :WARNing 88

[:COUNt]?

:STRing?

:BUFFer?

Numeric Simulate key press or read last key pressed

ON|OFF Switch security on and off

Block data Set/read complete instrument setting

Read error queue

no function

Read SCPI compliance setting

Read number of active warnings

Read active warnings as concatenated string

Read maximum possible length of concatenated string

:TRIGger

[:SEQuence [1]] | :STARt]

:COUNt

:PULSes[1|2]

:LEVel

:TERMination

:SOURce

(Pulse mode and period source)

<value> Set/read number of triggered periods to be

generated per ARM event (BURST period)

<value> Set/red the number of pulses within the trig-

gered periods at OUTput 1 or OUTput 2

<value> Set/read termination voltage level at CLK IN

IMM | INT[1] | EXT2 Set/read trigger source (Immediate | PLL |

CLK IN)

Programming Reference

Default Values, Standard Settings

Parameter *RST, Default Values

:ARM :LEVel [:THReshold] +1.0 V

:TERM +0.0 V

:MODE STARted

:SENSe POS

:SOURce IMM

:INITiate :CONTinuous ON

:CHANnel :MATH OFF

:DIGital :PATTern: OFF

:LOOP:INFinite ON

:LOOP:INFinite:STARt SEGM1

:LOOP 1

:LOOP:STARt SEGM1

:LOOP:LENGth 1

:PRBS 7

:SEGMent:DATA see

:SEGMent:LENGth 32, 0, 0, 0

:SEGMent:PRESet not applicable

:SEGMent:TYPE DATA

:UPDate ON

:SIGNal :FORMat RZ

:DISPlay ON

:MMEMory :CATatalog? not applicable

:CDIRectory not applicable

:COPY not applicable

:DELete not applicable

page 51

Programming Reference

Default Values, Standard Settings

Parameter *RST, Default Values

:INITialize not applicable

:LOAD :STATe not applicable

:STORe :STATe not applicable

:OUTPut OFF

:COMPlement OFF

:CORRection :EDELay 0.0 s

:CURRent

:OFFSet

:HIGH

:LOW

:LIMit [:HIGH] +10.0 mA

:LOW –10 mA

:STATe OFF

:FREQuency 1.00 MHz

:AUTO not applicable

:HOLD VOLT

:PHAS 0.0

:PULSe :DCYCle 10.0% (derived from Width and Period)

:DELay 0.00

:HOLD TIME

:UNIT SEC

:HOLD WIDTh

:PERiod 1µs

:AUTO not applicable

:TDELay 100 ns

:TRANsition :HOLD TIME

:UNIT SEC

20 mA (50

0.0

+10 mA (50

–10 mA (50

into 50Ω)

Ω

A (50Ω into 50Ω)

into 50Ω)

Ω

into 50Ω)

Ω

Programming Reference

Default Values, Standard Settings

Parameter *RST, Default Values

[:LEADING] 0.8 ns (HP 81131A) or not applicable

:TRAiling 0.8 ns (HP 81131A) or not applicable

:TRAiling:AUTO ON

:TRIGger: :MODE STARt

:POSition 1

:VOLTage TTL

:WIDTh 100 ns

:ROSCillator :SOURce INT

:EXTernal :FREQuency 5 MHz

:VOLTage 1.00 V

:OFFSet 0.0 mV

:HIGH 500 mV

:LOW –500 mV

:LIMit [HIGH] +500 mV

:LOW –500 mV

:STATe OFF

:STATus :OPERation not applicable

:PRESet not applicable

:QUESTionable ON

:SYSTem :ERRor? not applicable

:KEY not applicable

:PRESet not applicable

:SECurity OFF

:SET not applicable

:VERSion? “1992.0”

:WARN? [:COUNt] not applicable

:STRing? not applicable

:BUFFer? not applicable

Programming Reference

Default Values, Standard Settings

Parameter *RST, Default Values

:TRIGger :COUNt 1

:PULSes 2

:LEVel :TERMination 0.0 V

:SOURce INT

Programming Reference

Programming the Instrument Trigger Modes

Programming the Instrument Tri gg er M ode s

The following figure shows the instrument’s arming/triggering model:

*RST or power on

Trigger system

(1)

initiated

(still) initiated

ARM conditions

(1)

satisfied

For details of the trigger count command, refer to

“:TRIG:COUN” on page 89.

Idle

loops

(1)

(2)

Notes:

(1) The instrument is always initiated in CONTINUOUS modes.

The instrument is automatically initiated in MANual started/gated modes.

(2) 1 in Pulses Mode (same as :TRIGger:COUNt)

:TRIGger:COUNt in Continuous/Gated Mode

Maximum of :TRIGger:COUNt:PULSes1 and :TRIGger:COUNt:PULSes2 in Started Burst mode

Depends on sequence in Pattern Mode (may be infinite)

no longer initiated

Initiated

wait for Arm

completed # of Trigger

no longer initiated

wait for Trigger

Trigger conditions

satisfied

You program the comprehensive triggering capabilities of the instrument using the SCPI :ARM and :TRIGger subsystems. Using these two command subsystems you can program the operating modes of the instrument which are set up using the M

ODE/TRG

screen on the

frontpanel. Use the :ARM subsystem to select the overall triggering mode of the

instrument (CONTINUOUS, STARTED, GATED), and the :TRIGger subsystem to select the pulse period source, triggering and number of pulse periods per :ARM event (BURST length). In pattern mode the pattern length is the sum of each used segment’s length.

Programming Reference

Programming the Instrument Trigger Modes

Continuous

Set Continuous mode by arming the instrument from its internal PLL:

:ARM:SOURce IMMediate Arm from internal PLL

Started

Set Started mode by arming the instrument on low to high level transition from the EXT INPUT:

:ARM:SOURce EXTernal1 Arm from EXT INPUT :ARM:MODE STARted Start on the arm event :ARM:SENSe POSitive Arm on positive (high) level :ARM:LEVel:THReshold 1V Set EXT INPUT threshold

Gated

Set Gated mode by arming the instrument on levels from the EXT INPUT:

:ARM:SOURce EXTernal1 Arm from EXT INPUT :ARM:MODE GATed Select gated mode :ARM:SENSe POSitive Arm on positive level

Pulses

Set Pulses mode by setting the

:TRIGger:COUNt

triggered pulse period is generated for every :ARM event. The trigger source sets the pulse period:

:TRIGger:COUNt 1 Single pulse period per arm event :TRIGger:SOURce INTernal 1 Pulse period from internal PLL :DIGital:PATTern OFF Disable pattern data.

Pulse period source :TRIGger SOURce

internal PLL CLK-IN

INTernal[1] or IMMediate EXTernal2

to 1 so that a single

Programming Reference

Programming the Instrument Trigger Modes

Burst

Set Burst mode by setting the :TRIGger:COUNt to the burst count required. The trigger source sets the pulse period for the pulses within the burst (See table in “Pulses” on page 41).

:TRIGger:COUNt 16 Burst of 16 pulse periods :TRIGger:SOURce INTernal1 Pulse period from internal PLL. :DIGital:PATTern OFF Disable pattern data

Pattern

Set Pattern mode by setting the :DIGital[STIMulus]:PATTern:SEGMent[1|2|3|4]:LENGth to the required pattern length, and switching on digital pattern data. The trigger source sets the pulse period for the data pulses (See table in “Pulses” on

page 41):

#Pattern length 512 :DIGital[:STIMulus]:PATTern:SEG Ment1:LENGth 512 :DIGital[:STIMulus]:PATTern:SEG Ment2:LENGth 0 :DIGital[:STIMulus]:PATTern:SEG Ment3:LENGth 0 :DIGital[:STIMulus]:PATTern:SEG Ment4:LENGth 0

#Disable counted segment loop :DIGital[:STIMulus]:PATTern:LOO P:COUNt 1

#Jump back to start of segment 1 after the last bit of the last segment (here: segment 1) :DIGital[:STIMulus]:PATTern:LOO P:INFinite[:STATe] ON :DIGital[:STIMulus]:PATTern:LOOP:INFinite:STARt SEGM1

:TRIGger:SOURce INTernal1 Pulse period from internal PLL :DIGital:PATTern ON En ab le pattern data :DIGital:SIGNal1:FORMat NRZ Set OUTPUT 1 data to NRZ :ARM:MODE STARted :ARM:SOURce EXT1 Switch to started by EXT1

Programming Reference

Programming the Instrument Trigger Modes

Manually Starting and Gating

When starting and gating with the MAN key use the following commands:

STARTED *TRG or :INITiate:CONTinuous ON to start the instrument

:INITiate:CONTinuous OFF to stop the instrument

GATED :INITiate:CONTinuous ON to 'open the gate'

:INITiate:CONTinuous OFF to 'close the gate'

*TRG to gate for approx. 10ms

Programming Reference

SCPI Instrument Command List

The following reference sections list the instrument commands in alphabetical order. In addition to a command description, the attributes of each command are described under the following headings. Not all of these attributes are applicable to all commands. The commands are conform to the IEEE 488.2 SCPI standard.

Command Shows the short form of the command. Long Shows the long form of the command. Form Most commands can be used in different forms:

Set The command can be used to program the instrument

Query The command can be used to interrogate the instrument. Add a ? to

Event The command performs a one-off action.

Parameter The type of parameter, if any, accepted by the command. The minimum

and maximum value of numeric parameters can be accessed by the option MINimum or MAXimum.

the command if necessary.

Parameter Suffix The suffixes that may follow the parameter.

Functional Coupling

Value Coupling Any other parameter that is also changed by the command. Range Coupling Any other parameters whose valid ranges may be changed by the

*RST value The value/state following a *RST command. Specified Limits The specified limits of a parameter. Absolute Limits Some parameters can be programmed beyond their specified limits. Example Example programming statements.

Any other commands that are implicitly executed by the command.

command.

Programming Reference

SCPI Instrument Command List

Command :ARM:LEV[:THR]

Long

:ARM[:SEQuence[1] | :STARt][:LAYer]:LEVel[:THReshold]

Form Set & Query Parameter Numeric

Parameter SuffixV with engineering prefixes. *RST value +1.0 V Specified Limits –1.4 V to +3.7 V Description Use this command to program the triggering threshold of the EXT INPUT

connector.

Example

:ARM:LEV 2.5V

Set EXT INPUT threshold to 2.5 V

Command :ARM:LEV:TERM

Long

:ARM[:SEQuence[1] | :STARt][:LAYer]:LEVel:TERMination

Form Set & Query Parameter Numeric

Parameter SuffixV with engineering prefixes. *RST value +0.0 V Specified Limits –2.1 V to +3.3 V Description Use this command to program the termination voltage compensation of

the EXT INPUT connector.

Example

:ARM:LEV:TERM 1.0V

Set EXT INPUT termination voltage to 1.0 V

Command :ARM:MODE

Long

:ARM[:SEQuence[1] | :STARt][:LAYer]:MODE

Form Set & Query

Parameter

*RST value

STARted | GATed STARted

Programming Reference

SCPI Instrument Command List

Description Use this command to select STARTED or GATED mode.

In the gated mode, the instrument triggers as long as the arming signal is above (:ARM:SENS POS), or below (:ARM:SENS NEG) the selected threshold level (:ARM:LEV).

In started mode, the instrument triggers on positive edge (:ARM:SENS POS) or negative edge (:ARM:SENS NEG).

Command :ARM:SENS

Long

:ARM[:SEQuence[1] | :STARt][:LAYer]:SENSe

Form Set & Query Parameter POSitive | NEGative *RST value POS Description Use this command to select the edge or trigger level for the arming

signal. The instrument triggers at the positive or negative cycle of the arming

signal.

Command :ARM:SOUR

Long

:ARM[:SEQuence[1] | :STARt][:LAYer]:SOURce

Form Set & Query Parameter IMMediate | EXTernal1 | MANual *RST value IMM Description Use this command to select the triggering mode of the instrument by

selecting the source of the arming signal:

Triggering Source :ARM:SOURce Mode

Internal PLL EXT INPUT MAN key

IMMediate EXTernal1 MANual

Continuous Triggered | Gated by: EXT IN Triggered | Gated by: MANKey

Use :ARM:MODE STARTed|GATed to select the mode.

Programming Reference

SCPI Instrument Command List

Command :INIT:CONT

Long

:INITiate:CONTinuous

Form Set & Query

Parameter

*RST value

ON | OFF | 1 | 0 ON

Description Use this command to enable/disable automatic restart of the instrument

(equal to start and stop the instrument). If

IMMediate

, the value of

:INITiate:CONTinuous

:ARM:SOURce

is ignored.

is set to

Command :CHAN:MATH

Long

:CHANnel:MATH

Form Set & Query

Parameter

*RST value

OFF | DIGital OFF

Description Use this command to enable or disable digital channel addition in an

instrument with two Output channels installed.

:CHAN:MATH DIGital

With

the digital signals from both channels are ”xor’ed” (before the slopes are applied) at OUTPUT 1. The signal of OUTPUT 2 can be used in parallel.

This allows you to for example to simulate single or repeated glitches.

Command :DIG:PATT:LOOP

Long

:DIGital[:STIMulus]:PATTern:LOOP[:LEVel[1]][:COUNt]

Form Set & Query Parameter Numeric *RST value 1 Specified Limits 1 to 2^20 Description Use this command to set up a counted loop across one or more

segments.

Programming Reference

SCPI Instrument Command List

If nested loops are used, the counted loop must be embedded into the infinite loop completely.

Example To set up an infinite loop over segment 2 to segment 4 and a counted loop

across segment 2 and segment 3:

:ARM:SOUR EXT1 :ARM:MODE STAR :ARM:SENS POS :DIG:PATT:LOOP:INF:STAR SEGM2 :DIG:PATT:LOOP 100

:DIG:PATT:LOOP:STAR SEGM2 :DIG:PATT:LOOP:LENG 2 :DIG:PATT ON

Set arming source to EXT-IN Set arming mode to started Arm on positive level Set jump destination to segment 2 Set number of repetitions of segment2 and segment 3 Set start of counted loop Set length of counted loop Switch on PATTERN mode

Command :DIG:PATT:LOOP:INF

Long

:DIGital[:STIMulus]:PATTern:LOOP:INFinite[:STATe]

Form Set & Query

Parameter

*RST value

ON | OFF | 1 | 0 ON

Description Use this command to set up an infinite loop from the last used segment

to the destination segment. The infinite loop is ignored, if

:ARM:SOURce

IMMediate

is (CONTINUOUS mode), since in continuous mode there has to be a jump back to the start of the pattern (always from segment 4 to segment 1).

Example To setup an infinite loop over segment 2 to segment 4:

:ARM:SOUR EXT1 :ARM:MODE STAR :ARM:SENS POS :DIG:PATT:LOOP:INF ON :DIG:PATT:LOOP:INF:STAR SEGM2 :DIG:PATT:LOOP 1 :DIG:PATT ON

Set arming source to EXT-IN Set arming mode to started Arm on positive level Enable infinite loop Set jump destination to segment 2 Disable counted loop Switch on PATTERN mode

SCPI Instrument Command List

Command :DIG:PATT:LOOP:INF:STAR

Long

:DIGital[:STIMulus]:PATTern:LOOP:INFinite:STARt

Form Set & Query

Parameter

SEGM1 | SEGM2 | SEGM3 | SEGM4 | 1 | 2 | 3 | 4

*RST value SEGM1 Description Use this command to set up the destination segment.

The infinite loop is ignored, if :ARM:SOURce is IMMediate (CONTINUOUS mode), since in continuous mode there has to be a jump back to the start of the pattern (always from segment 4 to segment 1).

Example See previous example (page 48).

Command :DIG:PATT:LOOP:STAR

Long

:DIGital[:STIMulus]:PATTern:LOOP[:LEVel[1]]:STARt

Form Set & Query

Parameter

*RST value

Programming Reference

Description Use this command to set the first segment within a counted loop. The

start of the counted loop must be within the infinite loop (if used).

Example To set up an infinite loop over segment 2 to segment 4 and a counted loop

across segment 2 and segment 3:

:ARM:SOUR EXT1 :ARM:MODE STAR :ARM:SENS POS :DIG:PATT:LOOP:INF ON :DIG:PATT:LOOP:INF:STAR SEGM2 :DIG:PATT:LOOP 100

:DIG:PATT:LOOP:STAR SEGM2 :DIG:PATT:LOOP:LENG 2 :DIG:PATT ON

Set arming source to EXT-IN Set arming mode to started Arm on positive level Switch on infinite loop Set jump destination to segment 2 Set number of repetitions of segment2 and segment 3 Set start of counted loop Set length of counted loop Switch on PATTERN mode

Programming Reference

SCPI Instrument Command List

Command :DIG:PATT:LOOP:LENG

Long

:DIGital[:STIMulus]:PATTern:LOOP[:LEVel[1]]:LENGth

Form Set & Query

Parameter

*RST value

1 | 2 | 3 | 4 1

Description Use this command to set the number of segments to be repeated within

the counted loop.

Example See previous example (page 49).

Command :DIG:PATT

Long

:DIGital[:STIMulus]:PATTern[:STATe]

Form Set & query

Parameter

*RST value

ON | OFF | 1 | 0 OFF

Description Use this command to enable and disable PATTERN mode.

Command :DIG:PATT:PRBS

Long

:DIGital[:STIMulus]:PATTern:PRBS

Form Set & Query Parameter Numeric *RST value 7 Specified Limits 7 to 15 (integer) Description Use this command to set up PRBS polynom for all PRBS segments on all

channels.

Programming Reference

SCPI Instrument Command List

Example

To set up a repeating 2

:ARM:SOUR IMM :DIG:PATT:SEGM1:LENG 1023

:DIG:PATT:SEGM2:LENG 0 :DIG:PATT:SEGM3:LENG 0 :DIG:PATT:SEGM4:LENG 0 :DIG:PATT:SEGM1:TYPE1 PRBS

:DIG:PATT:LOOP 1 :DIG:PATT:PRBS 10 :DIG:PATT ON

–1 PRBS on OUTPUT 1:

Set continuous mode Set segment 1 pattern length (last bit) to 1023 Set segment 2 to be ignored Set segment 3 to be ignored Set segment 4 to be ignored Set type of segment 1 on channel 1 to PRBS Disable segment looping Set PRBS base to 10 Switch on PATTERN mode

Command :DIG:PATT:SEGM[1|2|3|4]:DATA[1|2]

Long

:DIGital[:STIMulus]:PATTern:SEGMent[1|2|3|4]:DATA[1|2]

Form Set & Query Parameter <data> *RST value Segment 1

Channel

[1|2] Description Bit 1 Bit 2

1 CH1 (OUTPUT 1) 1 0

2 CH2 (OUTPUT 2) 0 1

Segment 2 to Segment 4 set to all bits set to zero.

Description Use this command to set or read a segment’s data of one or all channels

starting from Bit 1. The <data> is an arbitrary block of program data as defined in IEEE 488.2 7.7.6.2, for example:

#1511213

# Start of block 1 Length of the length of the data 5 Length of the data

11213 5 bytes of data

Programming Reference

SCPI Instrument Command List

#2161000100010001000

# Start of block 2 Length of the length of the data 16 Length of the data

10...00 16 bytes of data

#011213

# Start of block 0 Replaces the data block length specification. Length is

calculated automatically.

11213 5 bytes of data

NOTE The data length meets the same restrictions, than the segment length

(see page 53).

Example :DIG:PATT:SEGM1:DATA #1511213

The instrument uses each byte of data set one Bit in the pattern memory. If you don’t specify a particular channel, the lowest two bits of each byte are used to set all three channels, and the top six bits are ignored. Note that you can therefore use the ASCII characters ‘0’,‘1’,‘2’ and ‘3’, to program Outputs 1 and 2 in binary:

DATA CH2

ASCII

0 1 2 3

ignored used

D7 D6 D5 D4 D3 D2 D1 D0

0 0 1 1 0 0 0 0 1 1 0 0 0 0 1 1 0 0 0 0 1 1 0 0

0 0 0 1 1 0 1 1

OUTPUT2

0 0 1 1

CH1 OUTPUT1

0 1 0 1

:DIG:PATT:SEGM1:DATA2 #1501011

If you specify a particular channel, the least significant bit of each byte is used to set the selected channel, and the top seven bits are ignored. Note

Programming Reference

SCPI Instrument Command List

that you can therefore use the ASCII characters ‘1’ and ‘0’ to set individual bits to 1 and 0:

Example

DATA CH2

ASCII

0 1

:ARM:SOUR IMM :DIG:PATT:SEGM1:DATA1 #1501011 :DIG:PATT:SEGM1:LENG 5 :DIG:PATT ON

ignored

D7 D6 D5 D4 D3 D2 D1 D0

0 0 1 1 0 0 0 0 0 1 1 0 0 0

LSB

0 1

Set continuous mode Set up pattern data for channel 1 Set pattern length (last bit) to 5 Switch on PATTERN mode

OUTPUT2

0 1

CH1 OUTPUT1

remains unchanged remains unchange

Command :DIG:PATT:SEGM[1|2|3|4]:LENG

Long

:DIGital[:STIMulus]:PATTern:SEGMent[1|2|3|4]:LENGth

Form Set & Query Parameter Numeric *RST value 32, 0, 0, 0 (segment 1 = 32, segments 2, 3, and 4 = 0) Specified Limits 0 to 65504 Description Use this command to set up the number of bits within a segment. If a

segment is set to a length of 0, the segment will be skipped.

Restrictions:

• At least one segment’s length has to be > 0.

• The overall length of the pattern has to be <= 65504 and >= two times

segment length resolution.

• If at least one segment is used to generate a PRBS, the overall pattern length has to be <= 32768.

Programming Reference

SCPI Instrument Command List

• The segment length has a resolution that depends on the current set frequency/period.

• The segment at the start of a counted loop has a minimum length of 2 times the resolution.

Pulse Period

< 3ns 16

3ns ... < 6ns 8

6ns ... < 12ns 4

12ns ... < 24ns 2

>= 24ns 1

Segment Length Resolution (length must be multiple of ...)

NOTE Every change of a segment length will cause the unused pattern data to

be overwritten (no undo!).

Command :DIG:PATT:SEGM[1|2|3|4]:PRES[1|2]

Long

:DIGital[:STIMulus]:PATTern:SEGMent[1|2|3|4]:PRESet[1|2]

Form Set Parameter <n>,<length> *RST value Not applicable Specified Limits <n> 0 to 32768 (integer)

<length> 1 to 65504 (integer)

Description Use this command to set up clock data starting from bit 1 with value 1.

The parameter <n> is used as the divider to generate a CLOCK÷n sequence (squarewave if NRZ data is selected). The parameter <length> determines the length of the segment.

Programming Reference

SCPI Instrument Command List

n=0 Fill with 0 n=1 Fill with 1

n=2 Sequence = 101010101010101....

n=4 Sequence = 110011001100110....

n=6 Sequence = 111000111000111....

n=8 Sequence = 111100001111000....

and so on.

NOTE The data length meets the same restrictions, than the segment length

(see page 53).

Command :DIG:PATT:SEGM[1|2|3|4]:TYPE[1|2]

Long

:DIGital[:STIMulus]:PATTern:SEGMent[1|2|3|4]:TYPE[1|2]

Form Set & Query

Parameter

*RST value

DATA | PRBS | HIGH | LOW DATA

Description Use this command to set the type of the segment for one channel.

If the segment type of one channel is set to PRBS the other channel may not be set to DATA.

If at least one channel uses PRBS, then the segment type combination used in this segment has to be used in every segment that shall generate a PRBS.

Command :DIG:PATT:UPD Long :DIGital[:STIMulus]:PATTern:UPDate Form Set & query

Parameter

ON | OFF | ONCE

Programming Reference

SCPI Instrument Command List

*RST value ON Description Use this command to enable and disable the automatic updating of the

pattern generating hardware following a :DIG:PATT:SEGM[1|2|3|4]:DATA command. Disable the automatic updating if you want to set up new pattern data in the instrument without affecting the pattern which is currently being generated. You can then update the hardware with the new pattern data by sending a :DIG:PATT:UPD ONCE command.

Command :DIG:SIGN[1|2]:FORM

Long

:DIGital[:STIMulus]:SIGNal[1|2]:FORMat

Format Set & Query Parameter RZ | NRZ | R1 Range Coupling Period, Frequency *RST value RZ Description Use this command to set and read the data format of channels 1 and 2

when using PATTERN mode. If you don’t specify a channel number in the command, channel 1 is assumed.

Example

RZ Return to Zero. An RZ pulse is generated for each ‘1’ in

the data. You can vary the width, edges and levels of the pulse.

R1 Return to One. An R1 pulse is generated for each ‘0’ in

the data. You can vary the width, edges and levels of the pulse.

NRZ Non Return to Zero. A pulse of 100% dutycycle is

generated for each ‘1’ in the data. You can vary the edges and levels of the pulse.

:DIG:SIGN:FORM NRZ

Set channel 1 data format to NRZ

Programming Reference

SCPI Instrument Command List

Command :DISP

Long

:DISPlay[:WINDow][:STATe]

Form Set & Query

Parameter

*RST value

ON | OFF | 1 | 0 ON

Description This command is used to turn the frontpanel display on and off.

Switching off the display improves the programming speed of the instrument.

NOTE *RST switches the display back on.

Example

DISP OFF

Switch off the frontpanel display

Command :MMEM:CAT?

Long

:MMEMory:CATalog?

Form Query Parameter ["A:"] *RST value Not applicable Description Use this command to get a listing of the contents of the currently

selected directory on the memory card. As there is only one memory card slot, the parameter A: is optional. The information returned is:

BYTES_USED

BYTES_FREE

>,<

FILE_ENTRY

>{,<

<bytes_used> The total number of bytes used on the memory card. <bytes_free> The total number of bytes still available on the memory

card.

<file_entry> String containing the name, type and size of one file:

FILE_NAME

FILE_TYPE

>,<

FILE_SIZE

>,<

NOTE The <file_type> is always blank. A directory name has <file_size> = 0

Programming Reference

SCPI Instrument Command List

Command :MMEM:CDIR

Long

:MMEMory:CDIRectory

Form Event Parameter ["directory_name"] *RST value Not applicable Description Use this command to change the current directory on the memory card.

If you don’t specify a directory name parameter, the root directory is selected.

NOTE Note that you cannot use DOS pathnames as directory names, you can

only select a directory name within the current directory. Use the directory name ".." to move back to the parent directory of the

current directory, unless you are already in the root directory "\".

Examples

:MMEM:CDIR :MMEM:CDIR ""PERFORM"" :MMEM:CDIR ""..""

Select root directory Select directory "PERFORM" Select parent directory

Command :MMEM:COPY

Long

:MMEMory:COPY

Form Event Parameter "filename"[,"A:"],"copyname"[,"A:"] *RST value Not applicable Description Use this command to copy an existing file filename in the current

directory to a new file copyname. If copyname is the name of a subdirectory in the current directory, a copy of the file filename is made in the sub-directory. Use ".." as copyname to copy a file into the parent directory of the current directory.

Examples

:MMEM:COPY ""test1"",""test2"" :MMEM:COPY ""test1"",""..""

Copy test1 to test2 Copy test1 into parent directory

Programming Reference

SCPI Instrument Command List

Command :MMEM:DEL

Long

:MMEMory:DELete

Form Event Parameter "filename" *RST value Not applicable Description Use this command to delete file filename from the currently selected

directory.

Command :MMEM:INIT

Long

:MMEMory:INITialize

Form Event Parameter ["A:"[,"DOS"]] *RST value Not applicable Description Use this command to initialize a memory card to DOS format.

CAUTION Initializing a memory card destroys any existing data on the card.

Command :MMEM:LOAD:STAT

Long

:MMEMory:LOAD:STATe

Form Event Parameter <n>,"filename"[,"A:"] *RST value Not applicable Specified Limits <n> = 0 to 4 (integer) Description Use this command to load a complete instrument setting from file

filename in the current directory into memory <n> in the instrument. Memories 1 to 4 are the internal memories. Use memory 0 to load a

setting as the current instrument setting.

Examples See next command

Programming Reference

SCPI Instrument Command List

Command :MMEM:STOR:STAT

Long

:MMEMory:STORe:STATe

Form Event Parameter <n>,"filename"[,"A:"] *RST value Not applicable Specified Limits <n> = 0 to 4 (integer) Description Use this command to store a complete instrument setting from memory

<n> to file filename in the current directory on the memory card. Memories 1 to 4 are the internal memories. Use memory 0 to store the

current instrument setting to a file.

Examples

:MMEM:LOAD:STAT 1,""FREQPERF"" :MMEM:LOAD:STAT 0,""AMPTEST"" :*SAV 2 :MMEM:STOR:STAT 2,""SETTING2"" :*RCL 3

Load FREQPERF into memory 1 Load AMPTEST as current setting Save current setting in memory 2 Store memory 2 to file “SETTING2” Recall memory 3 as current setting

Command :OUTP[1|2]

Long

:OUTPut[1|2][:NORMal][:STATe]

Form Set & Query

Parameter

*RST value

ON | OFF | 1 | 0 OFF

Description Use this command to switch the normal OUTPUTs on or off.

Example

:OUTP1 ON :OUTP2 OFF

Switch on OUTPUT 1 Switch off OUTPUT 2

Command :OUTP[1|2]:COMP

Long

:OUTPut[1|2]:COMPlement[:STATe]

Form Set & Query

Parameter

ON | OFF | 1 | 0

Programming Reference

SCPI Instrument Command List

*RST value OFF Description Use this command to switch the complement OUTPUTs on or off.

Example

:OUTP1:COMP ON :OUTP2:COMP OFF

Switch on complement OUTPUT 1 Switch off complement OUTPUT 2

Command :CORR[1|2]:EDELay

Long

[:SOURce]:CORRection[1|2]:EDELay[:TIMe]

Form Set & Query Parameter Numeric

Parameter suffix

with engineering prefixes.

*RST value 0.0 s Specified Limits –25.0 ns to +25.0 ns Description Use this command to program the OUTPUT Deskew delay. This allows

you to deskew the OUTPUTS so that the zero-delay points of both OUTPUT signals are the same at the device-under-test.

Example

:CORR1:EDEL 0NS :CORR2:EDEL 5.18NS

Set OUTPUT 1 DESKEW to 0 Set OUTPUT 2 DESKEW to 5.18 ns

Command :CURR[1|2]

Long

[:SOURce]:CURRent[1|2][:LEVel][:IMMediate][:AMPLitude]

Form Set & Query Parameter Numeric

Parameter suffix

with engineering prefixes.

*RST value 20 mA (50 Ω into 50 Ω) Specified Limits 3.8 V Outputs (50 Ω into short): max. 152 mA typical

3.0 V Outputs (50 Ω into short): max. 120 mA typical

Programming Reference

SCPI Instrument Command List

Value coupling

Amplitude = High – Low

Offset =

High – Low

Range coupling Offset Description This command programs the amplitude current of the OUTPUT signal.

Note that to set the OUTPUT levels in terms of current, you first have to execute the [:SOURce]:HOLD CURRent command to enable the [:SOURce]:CURRent subsystem.

The available current range is limited by the specified voltage limits.

Example

Command :CURR[1|2]:OFFSet

Long

:HOLD CURR :CURR1 75MA

[:SOURce]:CURRent[1|2][:LEVel][:IMMediate]:OFFSet

Enable CURRENT subsystem Set OUTPUT 1 amplitude to 75 mA

Form Set & Query Parameter Numeric Parameter suffix A with engineering prefixes. *RST value 0.0 µA (50 Ω into 50 Ω) Specified Limits 3.8 V Outputs (50 Ω into short): max. 152 mA typical

3.0 V Outputs (50 Ω into short): max. 120 mA typical

Value coupling

Amplitude = High – Low

Offset =

High – Low

Range coupling Amplitude Description This command programs the offset current of the OUTPUT signal. Note

that to set the OUTPUT levels in terms of current, you first have to

SCPI Instrument Command List

execute the [:SOURce]:HOLD CURRent command to enable the [:SOURce]:CURRent subsystem.

The available current range is limited by the specified voltage limits.

Example

:HOLD CURR :CURR1:OFF 50MA

Enable CURRENT subsystem Set OUTPUT 1 offset to 50 mA

Command :CURR[1|2]:HIGH

Long

[:SOURce]:CURRent[1|2][:LEVel][:IMMediate]:HIGH

Form Set & Query Parameter Numeric Parameter suffix A with engineering prefixes. *RST value +10 mA (50 Ω into 50 Ω) Specified Limits 3.8 V Outputs (50 Ω into short): max. 152 mA typical

3.0 V Outputs (50 Ω into short): max. 120 mA typical

Value coupling

Programming Reference

Amplitude = High – Low

Offset =

High – Low

Range coupling Low-level Description This command programs the High-level current of the OUTPUT signal.

Note that to set the OUTPUT levels in terms of current, you first have to execute [:SOURCE]:HOLD CURRent command to enable the [:SOURCE]:CURRent subsystem.

The available current range is limited by the specified voltage limits.

Example

:HOLD CURR :CURR1:HIGH 150MA

Enable CURRENT subsystem Set OUTPUT 1 High-level to 150 mA

Programming Reference

SCPI Instrument Command List

Command :CURR[1|2]:LOW

Long

[:SOURce]:CURRent[1|2][:LEVel][:IMMediate]:LOW

Form Set & Query Parameter Numeric

Parameter suffix

with engineering prefixes.

*RST value –10 mA (50 Ω into 50 Ω) Specified Limits 3.8V Outputs (50 Ω into short): max. 152 mA typical

3.0V Outputs (50 Ω into short): max. 120 mA typical

Value coupling

Amplitude = High – Low

Offset =

High – Low

Range coupling High-level Description This command programs the Low-level current of the OUTPUT signal.

Note that to set the OUTPUT levels in terms of current, you first have to execute the

[:SOURce]:CURRent

[:SOURce]:HOLD CURRent

subsystem.

command to enable the

The available current range is limited by the specified voltage limits.

Example

:HOLD CURR :CURR1:LOW 50 MA

Command :CURR[1|2]:LIM

Long

[:SOURce]:CURRent[1|2]:LIMit[:HIGH]

Form Set & Query Parameter Numeric

Parameter suffix

with engineering prefixes.

*RST value +10.0 mA

Enable CURRENT subsystem Set OUTPUT 1 Low-level to 50 mA

Programming Reference

SCPI Instrument Command List

Description Use this command to set/read the High-level current limit. If you switch

on current limiting, the High-level current cannot be set above the programmed limit.

NOTE The current is NOT limited by the OUTPUT hardware, this is a software

limit.

Example

:HOLD CURR :CURR1:LIM 50 MA :CURR1:LIM:STAT ON

Enable CURRENT subsystem Set OUTPUT 1 High-level current limit to 50 mA Switch on OUTPUT 1 limits

Command :CURR[1|2]:LIM:LOW

Long

[:SOURce]:CURRent[1|2]:LIMit:LOW

Form Set & Query Parameter Numeric

Parameter suffix

with engineering prefixes.

*RST value –10.0 mA Description Use this command to set/read the Low-level current limit. If you switch

on current limiting, the Low-level current cannot be set below the programmed limit.

NOTE The current is NOT limited by the OUTPUT hardware, this is a software

limit.

Example

:HOLD CURR :CURR1:LIM:LOW -50MA :CURR1:LIM:STAT ON

Enable CURRENT subsystem Set OUTPUT 1 Low-level current limit to – 50mA Switch on OUTPUT 1 limits

Command :CURR[1|2]:LIM:STAT

Long

[:SOURce]:CURRent[1|2]:LIMit:STATe

Form Set & Query

Parameter

ON | OFF | 1 | 0

Programming Reference

SCPI Instrument Command List

*RST value OFF Description This command switches the output limits on or off. When you switch on

the output limits cannot program the output-levels beyond the programmed limits, until you switch off the output-limits. The limits apply whether you program High/Low levels or Amplitude/Offset levels.

NOTE

You can switch the limits on and off in both the

[:SOURce]:CURRent

and the [

:SOURce]:VOLTage

but the current and voltage limits are not enabled/ disabled independently

. The voltage and current limits are always enabled/

disabled together.

Example

:HOLD CURR :CURR1:LIM 50MA :CURR1:LIM:LOW -50MA :CURR1:LIM:STAT ON

Command :FREQ

Long

[:SOURce]:FREQuency[:CW][:FIXed]

Form Set & Query Parameter Numeric Parameter Suffix Hz with engineering prefixes, or MHZ for Megahertz. *RST value 1.00 MHz Specified limits HP 81131A: 1 kHz to 400 MHz

HP 81132A: 1 kHz to 660 MHz

Value coupling

Period =

Enable CURRENT subsystem Set OUTPUT 1 High-level current limit to 50 m Set OUTPUT 1 LOW-level current limit to –50mA Switch on OUTPUT 1 limits

Frequency

subsystems

Description Use this command to set/read the pulse frequency. Select the frequency

source for the pulse frequency using :TRIGger:SOURce. The currently selected source is programmed by this command. Note that the specified limits and available resolution depend on the selected source.

Programming Reference

SCPI Instrument Command List

You cannot set the pulse frequency if you have selected the CLK IN connector as the frequency source (:TRIG:SOUR EXT).

Example

:TRIG:SOUR INT :FREQ 75MHz

Select internal PLL as pulse trigger Set pulse frequency to 75 MHz

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

:TRIG:SOUR EXT2 :FREQ:AUTO ONCE :FREQ?

Select ext CLK IN as pulse trigger Measure frequency at CLK IN 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 OUTPUTs in terms of

voltage or current.

Programming Reference

SCPI Instrument Command List

Command :PHAS[1|2]

Long

[:SOURce]:PHASe[1|2][:ADJust]

Form Set & Query Parameter Numeric

Parameter suffix

DEG

RAD

. A parameter without a suffix is interpreted as

*RST value 0.0 Specified limits 0 to 360° constrained by delay and period limits.

Value coupling

Phase

Delay =

360

Period

RAD

Functional coupling

Programming the pulse phase also executes

PHASe

so that the pulse phase is held constant when the signal frequency

[:SOURce]:PULSe:HOLD

is changed.

Description Use this command to set/read the relative phase-delay of the output

signal. This is equivalent to setting an absolute or percentage pulse-delay

[:SOURce]:PULSe:DELay

with

If you want the phase delay to remain constant when the pulse period is varied (rather than the absolute pulse delay) use

Example

[:SOURce]:PULSe:DELay[1|2]:HOLD PRATio

:PULS:DEL1 500NS :PHAS2 180 DEG :PULS:DEL1:HOLD TIM :PULS:DEL2:HOLD PRAT

Set OUTPUT 1 delay to 500ns Set OUTPUT 2 phase to 180 Hold OUTPUT 1 delay constant with varying perio Hold OUTPUT 2 phase constant with varying period

Command :PULS:DCYC[1|2]

Long

[:SOURce]:PULSe:DCYCle[1|2]

Form Set & Query Parameter Numeric Parameter suffix PCT *RST value 10.0% (derived from Width and Period)

Programming Reference

SCPI Instrument Command List

Specified limits 0.1 – 99.9%, depends on Width & Period.

Value coupling

Width =

Description Use this command to program the dutycycle of the pulse signal. If you

want to set an absolute pulse-width use [:SOURce]:PULSe:WIDTh[1|2].

If you want the pulse dutycycle to remain constant when the pulse period is varied (rather than the absolute pulse width use)

[:SOURce]:PULSe:HOLD[1|2] DCYCle

Example

Command :PULS:DEL[1|2]

Long

:PULS:DCYC1 25PCT :PULS:HOLD1 DCYC

[:SOURce]:PULSe:DELay[1|2]

Duty Cycle

100

Period

Set OUTPUT 1 dutycycle to 25% Hold dutycycle constant with varying period

Form Set & Query Parameter Numeric Parameter suffix S with engineering prefixes. You can change the default unit using

[:SOURce]:PULSe:DELay[1|2]:UNIT.

*RST value 0.0 Specified limits 0 to 3.00 µs

Value coupling

Phase =

Delay

× 360

Period

Delay% =

Description Use this command to set/read the pulse-delay. Delay is the time between

the start of the pulse period and the start of the leading-edge of the pulse. If you want the pulse-delay to remain constant when the pulse period is

Delay

Period

× 100

Programming Reference

SCPI Instrument Command List

varied (rather than the phase-delay) use [:SOURce]:PULSe:DELay[1|2]:HOLD TIME.

Example

:PULS:DEL1 500NS :PHAS2 180 DEG :PULS:DEL1:HOLD TIME

:PULS:DEL2:HOLD PRAT

Set OUTPUT1 delay to 500 ns Set OUTPUT 2 phase to 180 Hold OUTPUT 1 delay constant with varying period Hold OUTPUT 2 phase constant with varying period

Command :PULS:DEL[1|2]:HOLD

Long

[:SOURce]:PULSe:DELay[1|2]:HOLD

Form Set & Query Parameter TIME | PRATio *RST value TIME Description Use this command to set/read the coupling between the pulse period and

the pulse-delay:

Example

TIME The absolute pulse-delay is held fixed when the pulse period is

PRATio The pulse phase-delay (delay as ratio of period) is held fixed

:PULS:DEL1 500ns :PHAS2 180DEG :PULS:DEL1:HOLD TIME :PULS:DEL2:HOLD PRAT

varied (Pulse phase varies).

when the pulse period is varied. (Pulse-delay varies).

Command :PULS:DEL[1|2]:UNIT

Long

[:SOURce]:PULSe:DELay[1|2]:UNIT

Form Set & Query Parameter S | SEC | PCT | DEG | RAD *RST value SEC

Set OUTPUT 1 delay to 500ns Set OUTPUT 2 phase to 180° Hold OUTPUT 1 delay constant with varying period Hold OUTPUT 2 phase constant with varying period

Programming Reference

SCPI Instrument Command List

Description Use this command to set/read the default units for the pulse-delay

parameter. The default unit of a parameter is the unit used when the parameter is programmed to a value without a unit suffix.

Example

:PULS:DEL1:UNIT PCT :PULS:DEL1 50

Set OUTPUT 1 delay unit to % Set OUTPUT 1 delay to 50% of period

Command :PULS:HOLD[1|2]

Long

[:SOURce]:PULSe:HOLD[1|2]

Form Set & Query

Parameter

*RST value

WIDTh | DCYCle | TDELay WIDTh

Description Use this command to set whether the pulse-width, the pulse-dutycycle or

the pulse trailing-edge delay is held constant when the pulse period is changed.

Example

:PULS:DEL:HOLD1 TIME :PULS:DEL 20NS :PULS:HOLD1 DCYC

:PULS:DCYC 25PCT

Hold OUTPUT 1 delay fixed when frequency varies Set OUTPUT 1 delay to 20ns Hold OUTPUT 1 Dutycycle fixed when frequency varies Set OUTPUT 1 Dutycycle to 25%

Command :PULS:PER

Long

[:SOURce]:PULSe:PERiod

Form Set & Query Parameter Numeric

Parameter SuffixS with engineering prefixes.

*RST value 1 µs Specified limits HP 81131A: 2.5 ns to 1 ms

HP 81132A: 1.5 ns to 1 ms

Programming Reference

SCPI Instrument Command List

Value coupling

Frequency =

Period

Description Use this command to set/read the pulse period. Select the pulse period

source using :TRIGger:SOURce. The currently selected source is programmed by this command. Note that the specified limits and available resolution depend on the selected source.

You cannot set the pulse period if you have selected the CLK IN connector as the frequency source (:TRIG:SOUR EXT2).

Example

:TRIG:SOUR INT :PULS:PER 25NS

Command :PULS:PER:AUTO

Long

[:SOURce]:PULSe:PERiod:AUTO

Form Event

Select internal PLL as pulse trigger Set pulse frequency to 25 ns

Parameter ONCE *RST value Not applicable Description Use this command to measure the period at the CLK IN connector. If the

CLK IN connector is the selected pulse period source, you can then read the measured value with :PULS:PER?

Example

:TRIG:SOUR EXT2 :PULS:PER:AUTO ONCE :PULS:PER?

Select ext CLK IN as pulse trigger Measure period at CLK IN Query pulse period

Command :PULS:TDEL[1|2]

Long

[:SOURce]:PULSe:TDELay[1|2]

Form Set & Query Parameter Numeric Parameter Suffix S with engineering prefixes.

Programming Reference

SCPI Instrument Command List

*RST value 100 ns Specified Limits HP 81131A: 1.25 ns to 999.9 µs

HP 81132A: 0.75 ns to 999.9 µs

Description Use this command to program the delay of the trailing-edge of the pulse

relative to the start of the pulse period. This is an alternative method of programming the pulse-width.

Example

:PULS:DEL1 500NS :PULS:DEL1:HOLD TIME :PULS:TDEL1 750NS

Set OUTPUT 1 delay to 500 ns Hold OUTPUT 1 delay constant with varying period Set OUTPUT 1 trailing delay to 750 ns

Command :PULS:TRAN[1|2]:UNIT

Long

[:SOURce]:PULSe:TRANsition[1|2]:UNIT

Form Set & Query

Parameter

*RST value

S | SEC | PCT SEC

Description Use this command to set the default units for the pulse transition-times.

The default unit is used when the parameter is programmed to a value without a unit suffix.

Command :PULS:TRAN[1|2]

Long

[:SOURce]:PULSe:TRANsition[1|2][:LEADing]

Form Set & Query Parameter Numeric

Parameter suffixS with engineering prefixes *RST value 0.8 ns Specified limits HP 81131A: 0.8 ns or 1.6 ns

Parameter

Trailing-edge = Leading-edge fixed coupled

coupling

Programming Reference

SCPI Instrument Command List

Description Use this command to set/read the transition-time of the pulse leading-

edge. Note that the leading and trailing edges of the pulse have to fit within the defined pulse-width.

Example

:PULS:TRAN1 1.6NS

Set OUTPUT 1 leading edge to 1.6 ns

NOTE Selectable transition time is only available with HP 81131A.

Command :PULS:TRAN[1|2]:TRA

Long

[:SOURce]:PULSe:TRANsition[1|2]:TRAiling

Form Set & Query Parameter Numeric

Parameter suffixS with engineering prefixes. *RST value 0.8 ns Specified limits HP 81131A: 0.8 ns or 1.6 ns

Parameter

Trailing-edge = Leading-edge fixed coupled

coupling Description Use this command to set/read the transition-time of the pulse trailing-

edge. Note that the leading and trailing edges of the pulse have to fit within the defined pulse-width.

NOTE Selectable transition time is only available with HP 81131A.

Command :PULS:TRIG[1]:MODE

Long

[:SOURce]:PULSe:TRIGger[1]:MODE

Form Set & Query

Parameter

*RST value

CONTinuous | STARt STARt

Programming Reference

SCPI Instrument Command List

Description Use this command to set/read the TRIGGER OUT generation mode in

pattern mode.

Command :PULS:TRIG[1]:POS

Long

[:SOURce]:PULSe:TRIGger[1]:POSition

Form Set & Query

Parameter

1 | 2 | 3 | 4

*RST value 1 Description Use this command to set/read the TRIGGER OUT position in pattern

mode. The specified value selects a segment number for the HP 81130A.

Command :PULS:TRIG[1]:VOLT

Long

[:SOURce]:PULSe:TRIGger[1]:VOLTage[:LEVel][:IMMediate]

Form Set & Query

Parameter

*RST value

TTL | PECL | SYM | ECLG ND | ECLN2 V TTL

Description Use this command to set/read the output levels at the TRIGGER OUT

connector.

Termination

Value High Level Low Level

TTL 2,5V 0V 0V 50

PECL 4,2V 3,3V 3,0V 50

SYM 0,5V –0.5V 0V 50

ECLGND –0,8V –1,7V 0V 50

ECLN2V –0,8V –1,7V –2,0V 50

Vol tage

Termination

Resistor

Ω Ω Ω Ω Ω

Programming Reference

SCPI Instrument Command List

Command :PULS:WIDT[1|2]

Long

[:SOURce]:PULSe:WIDTh[1|2]

Form Set & Query Parameter Numeric

Parameter suffix

with engineering prefixes

*RST value 100 ns Specified Limits HP 81131A: 1.25 ns to 999.9 µs

HP 81132A: 0.75 ns to 999.9 µs

Description Use this command to program the width of the pulse signal. If you want

to set width as dutycycle use

[:SOURce]:PULSe:DCY Cle[1 |2]

If you want the pulse-width to remain constant when the pulse period is varied (rather than the dutycycle) use

[:SOURce]:PULSe:HOLD[1|2 ]

WIDTh.

Example

:PULS:WIDT1 50NS :PULS:HOLD1 WIDTH

Set OUTPUT 1 pulse width to 50 ns Hold pulse-width constant with varying period

Command :ROSC:SOUR

Long

[:SOURce]:ROSCillator:SOURce

Form Set & Query

Parameter

*RST value

INTernal | EXTernal INT

Description Use this command to set/read the reference source for the PLL. If you

select the external reference (CLK IN connector) you can choose to use a 1 MHz, 2 MHz, 5 MHz or 10 MHz reference signal using

:ROSC:EXT:FREQ.

INTernal Lock the PLL to its internal reference EXTernal Lock the PLL to a reference signal at the CLK IN connector. The exter-

nal reference signal can be 1, 2, 5 or 10 MHz.

Example

:ROSC:SOUR EXT :ROSC:EXT:FREQ 10 MHZ

Set external PLL reference (CLK IN) Set expected PLL reference frequency to 10 MHz

Programming Reference

SCPI Instrument Command List

Command :ROSC:EXT:FREQ

Long Form Set & Query Parameter Numeric *RST value 5 MHz Specified limits 1 MHz, 2 MHz , 5 MHz or 10 MHz Description Use this command to set/read the expected reference frequency for the

Example

Command :VOLT[1|2]

Long

[:SOURce]:ROSCillator:EXTernal:FREQuency

PLL at the CLK IN connector. The external reference can be a 1, 2, 5 or 10 MHz signal. Note that if you program any value other than the specified values, the value will be set to the nearest of the specified values.

:ROSC:SOUR EXT :ROSC:EXT:FREQ 10MHZ

[:SOURce]:VOLTage[1|2][:LEVel][:IMMediate][:AMPLitude]

Set external PLL reference (CLK IN) Set expected PLL reference frequency to 10 MHz

Form Set & Query Parameter Numeric

Parameter suffixV with engineering prefixes. *RST value 1.00 V Specified Limits HP 81131A: 0.10 Vpp to 3.80 Vpp

HP 81132A: 0.10 Vpp to 2.50 Vpp

Value coupling

High = Offset +

Amplitude

Low = Offset

–

Amplitude

Range coupling Offset

Programming Reference

SCPI Instrument Command List

Description This command programs the amplitude voltage of the OUTPUT signal.

Note that to set the OUTPUT levels in terms of voltage, you first have to execute the [:SOURce]:HOLD VOLTage command to enable the [:SOURce]:VOLTage subsystem.

The available voltage range is limited by the specified current limits.

Example

:HOLD VOLT :VOLT1 2V

Enable VOLTAGE subsystem Set OUTPUT 1 amplitude to 2 V

Command :VOLT[1|2]:OFFSet

Long

[:SOURce]:VOLTage[1|2][:LEVel][:IMMediate]:OFFSet

Form Set & Query Parameter Numeric Parameter suffix V with engineering prefixes. *RST value 0.0 mV Specified Limits HP 81131A: –1.95 V to 3.75 V

HP 81132A: –1.95 V to 2.95 V

Value coupling

High = Offset +

Amplitude

Low = Offset

–

Amplitude

Range coupling Amplitude Description This command programs the offset voltage of the OUTPUT signal. Note

that to set the OUTPUT levels in terms of voltage, you first have to execute the [:SOURce]:HOLD VOLTage command to enable the [:SOURce]:VOLtage subsystem.

The available voltage range is limited by the specified current limits.

Example

:HOLD VOLT :VOLT1:OFF -800MV

Enable VOLTAGE subsystem Set OUTPUT 1 offset to –800mV

Programming Reference

SCPI Instrument Command List

Command :VOLT[1|2]:HIGH

Long

[:SOURce]:VOLTage[1|2][:LEVel][:IMMediate]:HIGH

Form Set & Query Parameter Numeric

Parameter suffixV with engineering prefixes. *RST value 500 mV Specified Limits HP 81131A: –1.90 V to 3.80 V

HP 81132A: –1.90 V to 2.50 V

Value coupling

Amplitude = High – Low Offset =

High – Low

Range coupling Low-level Description This command programs the High-level voltage of the OUTPUT signal.

Note that to set the OUTPUT levels in terms of voltage, you first have to execute the

[:SOURce]:VOLTage

[:SOURce]:HOLD VOLTage

subsystem.

command to enable the

The available voltage range is limited by the specified current limits.

Example

:HOLD VOLT :VOLT1:HIGH 2V

Command :VOLT[1|2]:LOW

Long

[:SOURce]:VOLTage[1|2][:LEVel][:IMMediate]:LOW

Form Set & Query Parameter Numeric

Parameter suffix

with engineering prefixes.

*RST value –500 mV Specified Limits HP 81131A: –2.00 V to 3.70 V

Enable VOLTAGE subsystem Set OUTPUT 1 high level voltage to 2 V

Programming Reference

SCPI Instrument Command List

HP 81132A: –2.00 V to 2.90 V

Value coupling

Amplitude = High – Low Offset =

High – Low

Range coupling High-level Description This command programs the Low-level voltage of the OUTPUT signal.

Note that to set the OUTPUT levels in terms of voltage, you first have to execute the [:SOURce]:HOLD VOLTage command to enable the [:SOURce]:VOLTage subsystem.

The available voltage range is limited by the specified current limits.

Example

:HOLD VOLT :VOLT1:LOW 500MV

Command :VOLT[1|2]:LIM

Long

[:SOURce]:VOLTage[1|2]:LIMit[:HIGH]

Enable VOLTAGE subsystem Set OUTPUT 1 low-level to 500mV

Form Set & Query Parameter Numeric Parameter suffix V with engineering prefixes. *RST value +500 mV Description Use this command to set/read the High-level voltage limit. If you switch

on voltage limiting, the High-level voltage cannot be set above the programmed limit. Note that the voltage is NOT limited by the OUTPUT hardware, this is a software limit.

Example

:HOLD VOLT :VOLT1:LIM 2V :VOLT1:LIM:STAT ON

Enable VOLTAGE subsystem Set OUTPUT 1 High-level limit to 2 V Switch on OUTPUT 1 limits

Programming Reference

SCPI Instrument Command List

Command :VOLT[1|2]:LIM:LOW

Long

[:SOURce]:VOLTage[1|2]:LIMit:LOW

Form Set & Query Parameter Numeric

Parameter suffixV with engineering prefixes. *RST value –500 mV Description Use this command to set/read the Low-level voltage limit. If you switch

on voltage limiting, the Low-level voltage cannot be set below the programmed limit. Note that the voltage is NOT limited by the OUTPUT hardware, this is a software limit.

Example

:HOLD VOLT :VOLT1:LIM:LOW 0V :VOLT1:LIM:STAT ON

Enable VOLTAGE subsystem Set OUTPUT 1 Low-level voltage Switch on OUTPUT 1 limits

Command :VOLT[1|2]:LIM:STAT

Long

[:SOURce]:VOLTage[1|2]:LIMit:STATe

Form Set & Query

Parameter

*RST value

ON | OFF | 1 | 0 OFF

Description This command switches the output limits on or off. When you switch on

the output limits cannot program the output-levels beyond the programmed limits, until you switch off the voltage-limits. The limits apply whether you program High/Low levels or Amplitude/Offset levels.

NOTE You can switch the limits on and off in both the

and the

[:SOURce]:VOLTage

subsystems but the current and voltage

[:SOURce]:CURRent

limits are not enabled/ disabled independently. The voltage and current limits are always enabled/disabled together.

Example

:HOLD VOLT :VOLT1:LIM 2V :VOLT1:LIM:LOW 0V :VOLT1:LIM:STAT ON

Enable VOLTAGE subsystem Set OUTPUT 1 High level voltage limit to 2 Set OUTPUT 1 Low-level voltage limit to 0 Switch on OUTPUT 1 limits

Programming Reference

SCPI Instrument Command List

Command :STATus:OPERation

This command tree accesses the OPERation status group. The OPERation status group is not used by the instrument therefore this

command tree is redundant.

:STATus:OPERation[:EVENt]? :STATus:OPERation:CONDition? :STATus:OPERation:ENABle :STATus:OPERation:NTRansition :STATus:OPERation:PTRansition

Command :STATus:PRESet

Long

:STATus:PRESet

Form Event *RST value Not Applicable Description This command

• Clears all status group event-registers

• Clears the error queue

• Presets the status group enable-, PTR-, and NTR-registers as follows:

Status Group Register Preset value

OPERation ENABle

QUEStionable ENABle

PTR

NTR

PTR

NTR

0000000000000000 0111111111111111 0000000000000000 0000000000000000 0111111111111111 0000000000000000

Command :STATus:QUEStionable

This command tree accesses the QUEStionable status group. The QUEStionable status group contains warning bits for voltage, current, time and frequency parameters. A warning occurs when the output signal could be out of specification due to the combined specification uncertainties of many parameters, although all parameters are set within their individually specified limits. If a parameter is set outside its specified limits an error is generated.

The following commands are used to access the registers within the status group:

1. :STATus:QUEStionable[:EVENt]?

Form *RST value Description

Query Not Applicable This command reads the event register in the QUEStionable status group.

2. :STATus:QUEStionable:CONDition?

Form *RST value Description

Query Not Applicable This command reads the condition register in the QUEStionable status group.

Programming Reference

SCPI Instrument Command List

3. :STATus:QUEStionable:ENABle

Form Parameter *RST value Specified limits Description

Set & Query Numeric Not affected by *RST 0 – 32767

This command sets or queries the enable register in the QUEStionable status group.

4. :STATus:QUEStionable:NTRansition

Form Parameter *RST value Specified limits Description

Set & Query Numeric Not applicable 0 – 32767

This command sets or queries the negative transition register in the QUEStionable status group.

Programming Reference

SCPI Instrument Command List

5. :STATus:QUEStionable:PTRansition

Form Parameter *RST value Specified limits Description

Set & Query Numeric Not applicable 0 – 32767

This command sets or queries the positive transition register in the QUEStionable status group.

Command :SYST:ERR?

Long

:SYSTem:ERRor?

Form Query *RST value Not Applicable Description Use this command to read the instrument error queue. The instrument

error queue can store up to 30 error codes on a first-in-first-out basis. When you read the error queue, the error number and associated message are put into the instrument's output buffer.

If the queue is empty, the value 0 is returned, meaning

No Error

. If the

queue overflows at any time, the last error code is discarded and

Example

replaced with

:SYS:ERR?

-350

meaning

Queue overflow

Query for errors

Output example:

-222 "Data out of range" overlap at output 1: Width>Period

The above message is an example of a customized description. Generic descriptions are available in the SCPI 1995 Command Reference, items

21.8.4 to 21.8.11.

":SYST:WARN:STR?"

Send

. Alternatively, the HELP key shows the current errors and warnings and their description on the instruments display.

Command :SYST:KEY

Long

:SYSTem:KEY

Form Set & Query Parameter Numeric Parameter suffix No suffix allowed *RST value Not Applicable

Specified limits

No. Key Description

255 No key pressed (Query only)

0 DATA ENTRY 0

1 DATA ENTRY 1

2 DATA ENTRY 2

3 DATA ENTRY 3

4 DATA ENTRY 4

5 DATA ENTRY 5

6 DATA ENTRY 6

7 DATA ENTRY 7

8 DATA ENTRY 8

9 DATA ENTRY 9

10 DATA ENTRY .

11 DATA ENTRY

12 Cursor Up

13 Cursor Down

14 Cursor Left

15 Cursor Right

MAN

STORE

HELP

Programming Reference

SCPI Instrument Command List

+/–

Programming Reference

SCPI Instrument Command List

No. Key Description

21 Softkey 1

22 Softkey 2

23 Softkey 3

24 Softkey 4

29 Modify Knob Left (counter-clockwise)

30 Modify Knob Right (clockwise)

SHIFT

NANO

MICRO/MEGA

MILLI/KILO

ENTER

Description In query form, this command reads the last key pressed. The buffer is

emptied by *RST and returns the value -1 when empty. In set form, the command simulates pressing a key on the frontpanel.

Simulated key-press are also recorded as the last key pressed.

NOTE :SYST:KEY 19 sets the instrument to LOCAL mode.

1. In remote mode only the softkeys under the display and the SHIFT

(LOCAL) key are active. Since the instrument normally switches to remote mode when any command is received, including :SYSTem:KEY, simulating one of the other disabled keys has no effect.

2. If you want to simulate full frontpanel operation, you must prevent

the instrument from entering remote mode by using the REN line of the HP-IB to maintain local mode (LOCAL 7 in BASIC).

If you do this, the :SYSTem:KEY command is the only command which works. Any other commands will be buffered in the instrument blocking any further :SYSTem:KEY commands, until remote mode is enable.

Programming Reference

SCPI Instrument Command List

Command :SYST:PRES

Long

:SYSTem:PRESet

Form Same as *RST

Command :SYST:SEC

Long

:SYSTem:SECurity[:STATe]

Form Set & Query

Parameter

*RST value

ON|OFF OFF

Description

CAUTION Do not switch on system security unless you are willing to erase the

instrument settings stored in the instrument. All instrument memories, including the current setting, will be overwritten with the default settings if you

• Switch off system security

• Switch the instrument off and on again

• If you accidentally switch on system security, and want to rescue the

settings stored in the instrument, store the settings on a memory card. You can then recall them from the memory card later.

Use this command to switch on system security mode. Switch on system security if you need to make sure that all instrument settings stored in the instrument are erased automatically when the instrument is switched off, or when security mode is switched off.

The instrument settings are erased by overwriting them with the default settings.

System security mode is not available via the frontpanel. If you want to erase all settings by hand:

1 SHIFT STORE 0 to RECALL the default settings from memory 0. 2 STORE 1, STORE 2 ,...,STORE 4 to store the defaults in memories 1 to 4.

Programming Reference

SCPI Instrument Command List

Command :SYST:SET

Long

:SYSTem:SET

Form Set & Query Parameter Block data *RST value Not applicable Description In query form, the command reads a block of data containing the

instrument's complete set-up. The set-up information includes all parameter and mode settings, but does not include the contents of the instrument setting memories, the status group registers or the

:DISPlay[:WINDow][:STATe]

The data is in a binary format, not

ASCII, and cannot be edited. In set form, the block data must be a complete instrument set-up read

using the query form of the command.

Command :SYST:VERS?

Long

:SYSTem:VERSion?

Form Query *RST value "1992.0" Description This command reads the SCPI revision to which the instrument

complies.

Command :SYST:WARN?

Long

:SYSTem:WARNing[:COUNt]?

Form Query *RST value Not applicable Description Use this command to read the number of warnings which are currently

active. Note that the warning status of voltage, current, time and frequency are also summarized by bits in the QUESTionable Status register.

Programming Reference

SCPI Instrument Command List

Command :SYST:WARN:STR?

Long

:SYSTem:WARNing:STRing?

Form Query *RST value Not applicable Description Use this command to read all the currently active warning messages. The

warning messages are concatenated to form a single string with a ; as separator between the messages.

Command :SYST:WARN:BUFF?

Long

:SYSTem:WARNing:BUFFer?

Form Query *RST value Not applicable Description Use this command to read the maximum possible number of characters

which could be returned by

:SYST:WARN:STR?

if all warnings were

active.

Command :TRIG:COUN

Long

:TRIGger[:SEQuence[1] | :STARt]:COUNt

Form Set & Query Parameter Numeric *RST value 1 Specified limits 1 to 65504 Description Use this command to set/read the number of trigger events (pulse

periods) to be generated for each arming event in pulse and burst mode (in pattern mode the number of trigger events depends on the used

Programming Reference

SCPI Instrument Command List

sequence). This corresponds to selecting the event mode on the MODE/ TRG screen:

PULSES

Set a trigger count of 1 so that a single pulse period is generated for each arming event.

BURST of

Set a trigger count of 2 to 65504 so that a burst of 2 to 65504 pulse periods is generated for each arming event. Switch off pattern mode so that a pulse is generated in each pulse period. (

:DIG:PATT OFF

)

NOTE For a started burst this command will reduce the number of pulses on

channel 1 and channel 2 (:TRIGger:COUNt:PULSes[1|2]) to the value set by :TRIGger:COUNt. Changes of the number of pulses on the channels will increase the value to of :TRIGger:COUNt to reflect the changes on the channels.

Examples To set STARTED BURST of 16 pulse periods and 6 Pulses at

Out1, the burst are started by a positive level at the EXT INPUT:

:ARM:SOUR EXT1 :ARM:MODE STAR :ARM:SENS POS :TRIG:COUN 16 :TRIG:COUN:PULS1 6 :TRIG:SOUR INT1 :DIG:PATT OFF

Set arming from EXT INPUT Set started mode Set arming on positive level Burst length 16 Number of pulses at OUTPUT 1 Pulse period trigger from internal PLL. Disable pattern operating mode

To set GATED PULSES Pulses at Out1, gated by a positive level at the EXT INPUT:

:ARM:SOUR EXT1 :ARM:MODE GAT :ARM:SENS POS :TRIG:COUN 1 :TRIG:SOUR INT1 :DIG:PATT OFF

Set arming from EXT INPUT Set arming on levels Set arming on positive level 1 pulse period Single pulse output mode Pulse period trigger from internal PLL. Disable pattern data

Programming Reference

SCPI Instrument Command List

Influence of :TRIGger:COUNt and :TRIGger:COUNt:PULSes[1|2] in started burst mode:

:ARM:SOUR IMM TRIG:COUN 1 :ARM:MODE STAR :TRIG:COUN:PULS1 20 :TRIG:COUN 5

:TRIG:COUN:PULS1?

:TRIG:COUN?

:TRIG:COUN:PULS1 10

:TRIG:COUN?

:TRIG:COUN 20

:TRIG:COUN?

:TRIG:COUN 8

:TRIG:COUN:PULS1?

:TRIG:COUN 1

:TRIG:COUN:PULS1?

⇒

Set continuous mode

Set Pulse mode

Prepare started mode

Set number of pulses on channel 1 to 20

Set Burst mode with a length of 5 clocks, the number of pulses on both channels will be reduced to 5 if necessary.

Request number of pulses on channel 1

Request number of clock within the started burst

Set number of pulses on channel 1 to 10

Request number of clocks within the started burst

Set number of clocks within the started burst to 20

Request the number of clocks with in the started burst. The return value is 10, because none of the channels will generate more than 10 pulses.

Set the number of clocks within the started burst to 8.

Request the number of pulses on channel 1. The return value is 8, because the number of clocks has been decreased to a value less than the currently used number of pulses on channel 1.

Set Pulse mode

Request the number of pulses on channel 1. The value stays unchanged, since the instrument is no longer in started burst mode.

Programming Reference

SCPI Instrument Command List

Command :TRIG:COUN:PULS[1|2]

Long

:TRIGger[:SEQuence[1] | :STARt]:COUNt:PULSes[1|2]

Form Set & Query Parameter Numeric *RST value 2 Specified limits 2 to 65504 Description Use this command to set/read the number of pulses within a burst at

OUTPUT 1 or OUTPUT 2.

Examples To set

Out1

:ARM:SOUR EXT1 :ARM:MODE STAR :ARM:SENS POS :TRIG:COUN 16 :TRIG:COUN:PULS1 6 :TRIG:SOUR INT1 :DIG:PATT OFF

STARTED BURST of 16 pulse periods

, the burst is started by a positive level at the EXT INPUT:

Set arming from EXT INPUT Set started mode Set arming on positive level Burst length 16 Set 6 pulses at OUTPUT 1 Pulse period trigger from internal PLL. Disable pattern operating mode

6 Pulses at

and

Command :TRIG:LEV:TERM

Long

:TRIGger[:SEQuence[1] | :STARt]:LEVel:TERMination

Form Set & Query Parameter Numeric

Parameter SuffixV with engineering prefixes. *RST value 0.0 V Specified Limits –2.1V to +3.3V Description Use this command to program the termination voltage compensation of

the CLK IN connector.

Example

:TRIG:LEV:TERM 2.5V

Set CLK IN termination voltage to 2.5 V

Programming Reference

SCPI Instrument Command List

Command :TRIG:SOUR

Long

:TRIGger[:SEQuence[1] | :STARt]:SOURce

Form Set & Query

Parameter

*RST value

IMMediate | INTernal[1] | EXTernal2 INT

Description Use this command to select the pulse period source of the HP 81130A by

selecting the source of the pulse period trigger signal: Pulse period sources set by

:TRIG:SOUR

Pulse period source :TRIG:SOURce

internal PLL

CLK IN

IMMediate | INTernal[1] EXTernal2

Programming Reference

SCPI Instrument Command List

3Specifications

In this chapter you will find the specifications of the HP 81130A Pulse Generator and its output modules HP 81131A and HP 81132A.

At the end of this chapter, “Pulse Parameter Definitions” on page 111 provides detailed information on the definition of the pulse parameters used by the instrument.

NOTE

Warranted Performance

Specifications describe the instrument’s warranted performance. Nonwarranted values are described as typical. All specifications apply after a 30 minute warm-up phase with 50 Ohm source, a 50 Ohm load resistance and separate channels. They are valid from 0 °C to 55 °C ambient temperature.

Specifications

Declaration of Conformity

Manufacturer

Safety Standard

EMC Standard

Supplementary Information

Hewlett-Packard GmbH Boeblingen Instruments Division Herrenberger Str.110–140

D-71034 Boeblingen, Germany We declare that the system:

HP 81100 Family of Pulse-/Data Generators HP 81110 A 330/165 MHz Pulse/Pattern Generator HP 81104 A 80 MHz Pulse Pattern Generator HP 81101 A 50 MHz Pulse Pattern Generator HP 81112 A 330 MHz , 3.5V Output Module HP 81130 A * 400/660 MHz Puls-/Pattern Generator HP 81131 A * 400 MHz , 3.5V Output Module HP 81132 A * 660 MHz , 2.5V Output Module

conforms to the following standards:

IEC 1010-1:1990 +A1:1992 EN61010-1:1993 EN 55011:1991 / CISPR 11 Group 1, Class B

* EN 55011:1991 / CISPR 11 Group 1, Class A

EN 61000-4-2:1995 ESD: 4kVcd; 8 kVad;4kV c.p. EN 61000-4-3:1995 Radiated Immunity: 3V/m 80%AM ENV 50204: 1995 Radiated Immunity: 3V/m; 50%Dty EN 61000-4-4:1995 Fast Transients/Bursts: 0.5kV, 1kV EN 61000-4-5:1995 Surges: 1kVdiff; 2kV com.mode EN 61000-4-6:1995 Conducted Immunity EN 61000-4-8:1993 Power freq. magn. field 3A/m; 50Hz IEC1000-4-11:1994 Voltage Dips and Interruptions

The product herewith complies with the requirements of the

•

Low Voltage Directive (73/23/EEC) and the

•

EMC Directive (89/336/EEC).

During the measurements against EN55011, the I/O ports were terminated with their nominal impedance, the HP-IB connection was terminated with the cable HP 10833B.

When the product is connected to other devices, the user must ensure that the connecting cables and the other devices are adequately shielded to prevent radiation.

Boeblingen, June 09th 1998 Wolfgang Fenske

Regulation Consultant

Specifications

HP 81130A Specifications

General

Environmental Conditions

Operating temperature: 0°C to +55°C

Storage temperature: –40°C to +70°C

Humidity: 95% r.h. up to 40°C ambient temperature

Altitude: up to 2000 m

Installation: Category II

Pollution: Degree 2

EMC: conforms to EN50082-1, EN55011, Class A

Battery: Lithium, type CR2477-N

(HP part number 1420-0557)

Safety

IEC1010, CSA1010

Power requirements

100–240 Vac, ±10%, 50–60 Hz; 100–120 Vac, ±10%, 400 Hz Power consumption: 300 VA max.

Maximum Dimensions (H x W x D)

89 mm x 426 mm x 521 mm

Specifications

HP 81130A Specifications

Weight

Net

8.5 kg Single Channel

9.2 kg Dual Channel

Shipping

13.8 kg Dual Channel

Recalibration period

1 year recommended

Warranty

3 years standard

Acoustic Noise Emission

For ambient temperature up to 30°C, under normal operation and at the typical operator position:

LpA = 52 dB (5.9 bel) typical {47 dB (5.3 bel) at 23°C) typical} Measured in accordance with ISO 7779/EN 27779.

Specifications

HP 81130A Specifications

Timing Specifications

The timing characteristics are measured at 50% amplitude at fastest transitions in continuous mode and 50 Ω load impedance.

NOTE The HP 81130A is designed and recommended for an operation in the

frequency range of 170 kHz to 400/660 MHz. However it can be operated in the extended range down to 1 kHz. Changes in specifications below 170 kHz are set in brackets [].

Period & Frequency

Period can also be entered as frequency.

Period & Frequency

Period range: 2.5 ns to 1 ms 1.5 ns to 1 ms

Frequency range: 1 kHz to 400.0 MHz 1 kHz to 660.0 MHz

Period/frequency resolution:

Period accuracy

RMS-jitter: (internal reference, internal clock)

In burst mode the first period may be decreased by 150 ps.

HP 81130A with HP 81131A

4 digits, 2 ps best case

HP 81130A with HP 81132A

± 100 ppm [0.01%]

0.001% + 15 ps

Repeatability is typically four times better than accuracy.

Specifications

HP 81130A Specifications

Width

The width can be entered as absolute width, duty cycle, or trailing edge delay.

Widt h

Width range: 1.25 ns to (period – 1.25 ns) 750 ps to (period – 750 ps)

Resolution: 4 digits, 2 ps best case [0.05% of period]

Accuracy:

Jitter: 0.001% + 15 ps

HP 81130A with HP 81131A

100 ppm ± 200 ps [± 0.06% of period]

HP 81130A with HP 81132A

Delay

Measured between trigger output and main output. Can be entered as absolute delay, phase ° or % of period.

Delay

Variable delay range: 0 to 3.00 µs: independent of period

Resolution: 4 digits, 2 ps best case [0.05% of period]

Accuracy:

Jitter: 0.001% + 15 ps

Fixed Delay: 32 ns typ.

HP 81130A with HP 81131A

> 3.00 µs: 0 ns to 1 period

(0.01% + 100 ps) relative to the zero-delay

HP 81130A with HP 81132A

[±0.035% of period]

Deskew

Compensation for different cable delays.

Deskew

Range:

Resolution: 4 digits, 2 ps best case

HP 81130A with HP 81131A

HP 81130A with HP 81132A

25 ns

For frequencies >170 kHz only.

100

Specifications

HP 81130A Specifications

Transi t ion Times

Measured between 10% and 90% of amplitude, except for ECL levels (20% and 80% of amplitude).

Tran si ti on Ti mes

Range:

Minimum transition:

At ECL levels: <450 ps < 350 ps (200 ps typ.)

HP 81130A with HP 81131A

800 ps or 1600 ps (selectable)

600 ps for Vpp ≤ 1 V

≤

900 ps for Vpp > 1 V

≤

HP 81130A with HP 81132A

fixed

500 ps typ.

Digital Channel Add

In this mode, channel 1 and channel 2 are added and fed to channel 1 output. Channel 2 is still available.

101

Specifications

HP 81130A Specifications

Main Output Level Specifications

Level parameters can be entered as high/low level in terms of voltage or current or offset/amplitude.

Level Specifications

Output impedance: 50 Ω ± 1% typ. 50 Ω ± 5% typ.

Max. external voltage: –2.2 V to +5.5 V –2.0 V to +4.0 V

Amplitude: 0.10 Vpp to 3.80 Vpp 0.10 Vpp to 2.50 Vpp

Level window: –2.00 V to +3.80 V –2.00 V to +3.00 V

Accuracy:

Limits: high and low level can be limited to protect the DUT

Resolution: 3 digits (10 mV best case)

Short circuit current: –80 mA to +152 mA –80 mA to +120 mA

Baseline noise: 4 mV RMS typ. 8 mV RMS typ.

Connectors: SMA(f) 3.5 mm

Overshoot/preshoot/ ringing:

Normal/inverted: differential outputs

ON/OFF: relays connect/disconnect output (HiZ)

HP 81130A with HP 81131A

(2% + 50 mV)

(5% +50 mV) of amplitude typ.

HP 81130A with HP 81132A

(5% + 50 mV)

102

Agilent 81130A Reference Guide

Specifications and Main Features

Frequently Asked Questions

User Manual

Notice

About this Book

Safety Information

The HP-IB Interface Bus

Programming Recommendations

Common Command Summary

Status Model

2Programming Reference

Default Values, Standard Settings

Programming the Instrument Trigger Modes

SCPI Instrument Command List

3Specifications

Declaration of Conformity

General

Timing Specifications

Main Output Level Specifications