Agilent Technologies 81101A User Manual

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Agilent 81101A 50 MHz Pulse Generator

Quick Start Guide

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, or

parameter value

Entry Focus

Use the KNOB to select a

mode or modify parameters

and formats

Press ENTER or a UNIT key to

confirm parameter changes

Per 1.000µµµµs Normal

Delay1 0ps Width LeadE TraiE

100.0ns

5.00ns =LeadE

OUTPUT TRG-LEVLIMITSMODE/TRG

Press a SOFTKEY to access

the required entry screen

Screen Selection Area

OFF

Offset Amplit

+0.0mV

1.00V

50ΩΩΩΩ into 50.0ΩΩΩΩ

MODE/TRG TRG-LEV MEMCARD CONFIG

MODIFY

*OFF ON

Press MORE key to access

the additional screen menus:

GRAPH

Quick Start Guide

Agilent 81101A 50 MHz

Pulse Generator

Part No. 81101-91020

Printed in Germany March 2000

Edition 1.1, E0300

Notice



No part of this manual may be reproduced in any form or by any means (including electronic storage and retrieval or translation into a foreign language) without prior agreement and written consent from Agilent Technologies Inc. as governed by United States and international copyright laws.

Notice

The material contained in this document is subject to change without notice. Agilent Technologies makes no warranty of any kind with regard to this material, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose. Agilent Technologies shall not be liable for errors contained herein or for incidental or consequential damages in connection with the furnishing, performance, or use of this material.

Warranty

This Agilent Technologies product has a warranty against defects in material and workmanship for a period of three years from date of shipment. During the warranty period, Agilent Technologies 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 Agilent Technologies. The Buyer shall pay Agilent Technologies round-trip travel expenses. For products returned to Agilent Technologies for warranty service, the Buyer shall prepay shipping charges to Agilent Technologies and Agilent Technologies 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 Agilent Technologies from another country.

Notice

Agilent Technologies warrants that its software and firmware designated by Agilent Technologies for use with an instrument will execute its programming instructions when properly installed on that instrument. Agilent Technologies does not warrant that the operation of the instrument software, or firmware, will be uninterrupted or error free.

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. Agilent Technologies 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. Agilent Technologies shall not be liable for any direct, indirect, special, incidental, or consequential damages, whether based on contract, tort or any other legal theory.

Certification

Agilent Technologies certifies that this product met its published specifications at the time of shipment. Agilent Technologies 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.

Services and Support

Any adjustment, maintenance, or repair of this product must be performed by qualified personnel. Contact your customer engineer through your local Agilent Technologies Service Center. You can find a list of local service representatives on the Web at:

http://www.agilent.com/Service/English/index.html

Safety Summary

The following general safety precautions must be observed during all phases of operation of this instrument. Failure to comply with these precautions or with specific warnings elsewhere in this manual violates safety standards of design, manufacture, and intended use of the instrument. Agilent Technologies Inc. assumes no liability for the customer's failure to comply with these requirements.

General

This product is a Safety Class 1 instrument (provided with a protective earth terminal). The protective features of this product may be impaired if it is used in a manner not specified in the operation instructions.

All Light Emitting Diodes (LEDs) used in this product are Class 1 LEDs as per IEC 60825-1.

Environmental Conditions

This instrument is intended for indoor use in an installation category II, pollution degree 2 environment. It is designed to operate at a maximum relative humidity of 95% and at altitudes of up to 2000 meters. Refer to the specifications tables for the ac mains voltage requirements and ambient operating temperature range.

Before Applying Power

Verify that the product is set to match the available line voltage, the correct fuse is installed, and all safety precautions are taken. Note the instrument's external markings described under Safety Symbols on

page 8.

Safety Summary

Ground the Instrument

To minimize shock hazard, the instrument chassis and cover must be connected to an electrical protective earth ground. The instrument must be connected to the ac power mains through a grounded power cable, with the ground wire firmly connected to an electrical ground (safety ground) at the power outlet. Any interruption of the protective (grounding) conductor or disconnection of the protective earth terminal will cause a potential shock hazard that could result in personal injury.

Fuses

Only fuses with the required rated current, voltage, and specified type (normal blow, time delay, etc.) should be used. Do not use repaired fuses or short-circuited fuse holders. To do so could cause a shock or fire hazard.

Do Not Operate in an Explosive Atmosphere

Do not operate the instrument in the presence of flammable gases or fumes.

Do Not Remove the Instrument Cover

Operating personnel must not remove instrument covers. Component replacement and internal adjustments must be made only by qualified service personnel.

Instruments that appear damaged or defective should be made inoperative and secured against unintended operation until they can be repaired by qualified service personnel.

Safety Summary

Safety Symbols

Caution (refer to accompanying documents)

Protective earth (ground) terminal

In the manuals:

WARNING

CAUTION

The WARNING sign denotes a hazard. It calls attention to a procedure, practice, or the like, which, if not correctly performed or adhered to, could result in personal injury. Do not proceed beyond a WARNING sign until the indicated conditions are fully understood and met.

The CAUTION sign denotes a hazard. It calls attention to an operating procedure, or the like, which, if not correctly performed or adhered to, could result in damage to or destruction of part or all of the product. Do not proceed beyond a CAUTION sign until the indicated conditions are fully understood and met.

About this Book

This quick start guide helps you to quickly get familiar with the features and the user interface of the Agilent 81101A Pulse Generator.

Chapter 1 Introducing the Agilent 81101A Pulse Generator on page 15 gives a general overview of the Agilent 81101A, its features, the user

interface, and the steps required for operating the instrument.

For getting started Chapter 2 Getting Started on page 29 gives the setup information for some real-world signal examples, which can easily be used by varying only some parameter values.

Chapter 3 Using the Agilent 81101A on page 43 provides complete

information on the user interface screens.

Installation and maintenance are described in Appendix A Installation

& Maintenance on page 75.

For specifications and information on operating the instrument by means of remote control, please refer to the Reference Guide, p/n 81101-91021.

About this Book

Conventions Used in this Book

This book uses certain conventions to indicate elements of the Agilent 81101A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/OFF) to switch on the output.

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.

Contents

Notice ......................................................................................... 4

Safety Summary ......................................................................... 6

About this Book ......................................................................... 9

Chapter 1

Chapter 2

Introducing the Agilent 81101A Pulse Generator

What you can do with the Agilent 81101A ............................ 16

The Front Panel ....................................................................... 18

Operating the Agilent 81101A ................................................ 20

Switching On the Instrument .............................................................. 20

The Basic Screens ................................................................................. 21

Adjusting Parameters ........................................................................... 23

Switching the Output On and Off ....................................................... 26

Using the Special Function Keys ........................................................ 26

Help is Available ...................................................................... 27

The Rear Panel ........................................................................ 28

Getting Started

Setting Up a Clock Signal ....................................................... 30

Setting Up a Pulse Signal ........................................................ 35

Setting Up a Burst Signal ....................................................... 39

Contents

Chapter 3

Using the Agilent 81101A

The Mode/Trigger Screen ....................................................... 44

Overview ................................................................................................. 44

Continuous Pulses Mode ...................................................................... 46

Continuous Burst Mode ........................................................................ 47

Triggered Pulses Mode ......................................................................... 48

Triggered Burst Mode ........................................................................... 50

Gated Pulses Mode ................................................................................ 52

Gated Burst Mode ................................................................................. 54

External Width Mode ............................................................................ 55

The Output Screen ................................................................. 56

Timing Parameters ................................................................................ 56

Level Parameters ................................................................................... 61

The Limits Screen ................................................................... 64

The Trigger-Level Screen ....................................................... 65

Threshold and Impedance Parameters ............................................... 65

Trigger and Strobe Level Parameters ................................................. 66

Appendix A

The Memory Card Screen ....................................................... 67

The Configuration Screen ...................................................... 70

Warnings and Errors .............................................................. 72

Installation & Maintenance

Initial Inspection .................................................................... 76

Standard Deliverables ........................................................................... 77

Options and Accessories: ..................................................................... 78

xii

Contents

Power Requirements ............................................................... 80

Power Cable ............................................................................. 82

Ventilation Requirements ....................................................... 83

Thermal Protection ............................................................................... 83

Battery ..................................................................................... 84

Battery Replacement ............................................................................ 85

Operating Environment .......................................................... 86

Cleaning Recommendation ..................................................... 87

Acoustic Noise Emission ......................................................... 88

xiii

Contents

xiv

1Introducing the

Agilent 81101A Pulse

Generator

The purpose of the introduction chapter is to give a general overview of the Agilent 81101A.

The main features and use models are described in What you can do

with the Agilent 81101A on page 16.

Operating the instrument via the front panel user interface is described in

The Front Panel on page 18 and Operating the Agilent 81101A on page 20.

Help is Available on page 27 shortly introduces the Agilent 81101As

on-line help system.

Finally, The Rear Panel on page 28 takes a look at the back of the Agilent 81101A.

Introducing the Agilent 81101A Pulse Generator

What you can do with the Agilent 81101A

This section introduces the basic features and use models of the Agilent 81101A Pulse Generator.

Basic Features

The Agilent 81101A is a single-channel pulse generator with variable transition times. It is capable of generating all standard pulses and bursts of pulses needed to test current logic technologies (for example, TTL, CMOS, ECL, PECL, LVDS, GTL) and other digital designs up to 50 MHz.

The instrument features two internal oscillators:



a synchronously triggerable internal oscillator



an accurate, stable internal PLL

For even more accuracy, an external frequency reference can be connected.

Any timing parameter can be varied without glitch or drop out. This contributes to more accurate and confident characterizations of the device under test (DUT).

Complete signal setups can be stored locally (9 internal non-volatile registers available) or on a memory card.

Benchtop Testing

The Agilent 81101A features a graphic display showing all pulse parameters at a glance. The cursor keys and the modify knob allow fast and simple operation.

The user interface is designed to minimize the time invested in getting familiar with the instrument. After familiarization, the instrument supports quick setups of signals. This leaves you free to concentrate on the measurement task and testing of the DUT.

Introducing the Agilent 81101A Pulse Generator

What you can do with the Agilent 81101A

Automated Testing

The Agilent 81101A features an GP-IB/SCPI-conform command structure for all features. Using this programming interface, the instrument can be easily integrated into all phases of test system development such as planning rack integration and test program generation.

Programs designed for the Agilent 81101A are compatible with all other models of the Agilent 81100 family.

NOTE

For a command reference list, please refer to the Reference Guide, part number 81101-91021.

Introducing the Agilent 81101A Pulse Generator

The Front Panel

When used for benchtop testing, the instrument is mainly operated from the front panel.

Front Panel Switch

NOTE

Special Function Keys Data Entry Keys

Softkeys MORE Key Inputs and Outputs

front panel switch

The

When the front panel switch is off, the instrument is in standby mode. The instrument is disconnected from the AC line power only by disconnecting the power cord.

The four keys below the display are the keys). The current function of each softkey is indicated in the corresponding box on the display.

Pressing the MORE key changes the softkey layout.

The other keys ( and the operating the instrument (see Operating the Agilent 81101A on

page 20).

special function keys, data entry keys, cursor keys

rotary knob

is used to switch on and off the instrument.

are used to select and modify parameters when

Cursor Keys

softkeys

(software-controlled

Rotary Knob

)

Introducing the Agilent 81101A Pulse Generator

The Front Panel

The major inputs and outputs of the instrument are available at the front panel:



The external input (EXT INPUT) can be used to connect an external arming source (triggered or gated modes), or to perform pulse recovery (external width mode). For details, please refer to The

Mode/Trigger Screen on page 44.



The strobe output (STROBE OUT) provides a signal indicating the duration of a burst.

In burst mode, the STROBE OUT signal marks the start and end of each burst of pulses generated. The rising edge of the STROBE signal is synchronized to the start of the first pulse period in a burst, the falling edge is synchronized to the start of the last pulse period in the burst. (see The Mode/Trigger Screen on page 44).

You can set the output levels to TTL or ECL (see The Trigger-Level

Screen on page 65)



The trigger signal (TRIGGER OUT) marks the start of each pulse period (see The Mode/Trigger Screen on page 44). You can set the output levels to TTL or ECL (see The Trigger-Level Screen on

page 65).

NOTE



The OUTPUT provides the signal output, the indicator shows the current state of the output (on or off).

An input connector for external frequency reference (CLOCK/REF INP.) is available at the rear panel (see The Rear Panel on page 28). When the rear panel option UN2 is ordered, all input and output connectors are available at the rear panel.

For information on the use of the memory card slot, refer to The

Memory Card Screen on page 67.

Introducing the Agilent 81101A Pulse Generator

Operating the Agilent 81101A

This section guides you through the first steps when operating the Agilent 81101A via the user interface.

NOTE

For information on operating the Agilent 81101A via remote control, please refer to the Reference Guide, part number 81101-91021.

Switching On the Instrument

After switching on the instrument the display indicates that the instrument selftest is running. This can take several seconds to complete.

If the selftest fails, you see a flashing E at the bottom of the screen. Press the HELP key to see a list of the selftest error messages. Use the knob or the cursor keys to scroll through the list if necessary.

To return to normal operation press HELP again. Note that the selftest error messages are removed from the error queue after this.

Introducing the Agilent 81101A Pulse Generator

Operating the Agilent 81101A

The Basic Screens

The major parameters for pulse generation can be set up in only two screens.

Mode/Trigger screen

The and trigger modes with respect to the signal required.

allows you to set the fundamental operating

Press the MODE/ TRG softkey to access this screen.

CONTINUOUS

PULSES

MODIFY

Single-Pulses at Out1

*PulseStrm Burst

Pulse-Period: internal Osc

OUTPUT TRG-LEVLIMITSMODE/TRG

In this screen, you can set up the signal to be triggered or continuous, and to be a pulse stream or a burst (several pulses followed by a pause) consisting of single or double pulses.

In the lower section you can specify the frequency source for the pulse period and the trigger source.

Introducing the Agilent 81101A Pulse Generator

Operating the Agilent 81101A

Output screen

The for the signal to be generated.

allows you to specify timing and level parameters

Press the OUTPUT softkey to access this screen.

Per 1.000

Delay Width LeadE TraiE

µµµµ

s Normal

0ps

100.0ns

5.00ns =LeadE

Offset Amplit

ΩΩΩΩ

into 50.0

OFF

+0.0mV

1.00V

ΩΩΩΩ

MODIFY

*OFF ON

OUTPUT TRG-LEVLIMITSMODE/TRG

In the left part of this screen, you can set up the timing for the signal (period, pulse width, transition times, ...). The right part is for the levels (normal or inverted signal, offset and amplitude, impedance, ...).

Furthermore, you can switch on and off the output.

Pressing SHIFT + MORE (GRAPH) when the Output screen is displayed, toggles between the textual display and a graphical representation of the parameters. Depending on the current cursor position (left or right part), the timing parameters or the level parameters are visualized.

Per 1.000µµµµs Normal

Delay1 0ps Width LeadE TraiE

100.0ns

5.00ns =LeadE

Offset Amplit 50

OUTPUT TRG-LEVLIMITSMODE/TRG

OFF

+0.0mV

1.00V

ΩΩΩΩ

into 50.0

MODIFY

*OFF ON

ΩΩΩΩ

1 OFF

PERIOD

OFF

+11V

1.000

µµµµ

OUTPUT TRG-LEVLIMITSMODE/TRG

-11V OUTPUT TRG-LEVLIMITSMODE/TRG

Output 1

*OFF ON

Introducing the Agilent 81101A Pulse Generator

Operating the Agilent 81101A

Adjusting Parameters

Adjusting parameters within a screen, requires two steps:



selecting the parameter



adjusting its value

Some parameters allow different formats of their values. For example, the pulse width can be displayed and entered as an absolute value, as duty cycle (percentage of the period), or as the delay of the trailing edge.

The following sections show the standard procedure for adjusting parameters, and list some features useful for the advanced user.

Standard Procedure

To experience the standard procedure for adjusting parameters, consider the following example where the duty cycle is set to 50%.

Press the OUTPUT softkey to access the Output screen.

Use the cursor keys to select the W

parameter.

IDTH

Selection Cursor Modify/Enter Area

Per 1.000

Delay

Width

LeadE TraiE

µµµµ

s Normal OFF

0ps

100.0ns

5.00ns =LeadE

Offset Amplit 50

ΩΩΩΩ

into 50.0

+0.0mV

1.00V

ΩΩΩΩ

MODIFY

*Width DutyCycle TrailDel

OUTPUT TRG-LEVLIMITSMODE/TRG

The available formats for the pulse width parameter are displayed in the Modify/Enter area.

Introducing the Agilent 81101A Pulse Generator

Operating the Agilent 81101A

When changing the parameter format, the instrument automatically recalculates the value.

Turn the knob to select D The selected setting is indicated by an *.

Move the cursor to the right to select the duty cycle value.

Use the data entry keys or the knob to enter the required value: 50.

Press the ENTER key to confirm your selection.

UTYCYCLE

Per 1.000

Delay1 0.0ps DtyCyc LeadE TraiE

µµµµ

s Normal OFF

50.00%

6.00ns =LeadE

Offset Amplit 50

ΩΩΩΩ

into 50.0

+0.0mV

1.00V

MODIFY

50.00

ΩΩΩΩ

OUTPUT TRG-LEVLIMITSMODE/TRG

If you need to specify a unit for a parameter, simply press the appropriate unit key (

With this small example, you have learned the basic steps required for adjusting parameters. For a complete reference of parameters and formats available in the individual screens, refer to Chapter 3 Using the

Agilent 81101A on page 43.

NANO, MICRO/MEGA, MILLI/KILO

) instead of the ENTER key.

SHIFT

Introducing the Agilent 81101A Pulse Generator

Operating the Agilent 81101A

Advanced Procedures

The following features can be used to make operation more comfortable.

 Selecting parameters

Most keys of the front panel have an additional function. The SHIFT key provides fast access to the additional functions of the data entry keys and the special function keys.

For example, it is possible to quickly access the pulse width parameter by pressing SHIFT + 6 (WIDTH). The entry focus will be positioned on the corresponding editing field.

 Changing the step size

SHIFT

NOTE

When modifying a value in the Modify/Enter area, pressing the SHIFT key followed by cursor left/right moves the cursor to a different digit in the displayed number.

Thus, you can change the step size for parameter change before you vary the value either with the up/down cursor keys or the knob.

 Overprogramming

Pressing the SHIFT key while turning the knob, it is possible to exceed specified parameter ranges to utilize the instrument to its limits.

Proper operation of the instrument outside of the specified ranges is not guaranteed. It is recommended to have the output switched on when overprogramming to have the internal error check system activated. This error check system warns you about impossible settings.

Introducing the Agilent 81101A Pulse Generator

Operating the Agilent 81101A

Switching the Output On and Off

When you switch the instrument on, the output is switched off to protect the device under test. The LED indicator next to the output connector indicates the output state.

ON/OFF

MAN

RECALL

STORE

SHIFT

LOCAL

To switch the output on or off



either press SHIFT + 0 (ON/OFF),



or move the cursor to the ON/OFF parameter in the Output screen and select the appropriate value by turning the knob.

Using the Special Function Keys

The instrument provides the following special function keys:



The MAN key can be used in triggered or gated mode to manually trigger the instrument if there is no other source available (see The

Mode/Trigger Screen on page 44).



The STORE key can be used to store/recall to/from 1 to 9 individual settings in the instrument memory.

In the internal memory location 0 there is a default setting stored. Pressing SHIFT + STORE (RECALL) and selecting 0 resets the instrument to the default setting.



The SHIFT key provides fast access to additional functions. When the front panel controls are locked in remote control, pressing

the SHIFT key unlocks the front panel controls.

HELP



The HELP key provides access to the instruments on-line help or in warning or error state, access to Warning/Error Report screen.

Pressing SHIFT + HELP (AUTOSET) sets the instrument to a valid setting based on the current period setting.

Help

Introducing the Agilent 81101A Pulse Generator

Help is Available

Whenever you are in doubt or the instrument signals warnings or errors, press the HELP key.

If there are no warnings or errors pending, pressing the HELP key displays information on the currently selected parameter, the parameter help. More information is available within the help system:

 Parameter Help

The help information gives a short description of the parameter or setting options and the corresponding SCPI command(s) syntax for programming the parameter or setting.

If there is more than one screen available (indicated by small arrows), use the knob or the cursor keys to scroll through the help information.

To access parameter help from other screens of the help system, press the ON FIELD softkey.

Warnings and Errors

Exit Help

 Concept Help

Pressing the CONCEPT softkey within the help system displays a short description of the instrument.

 Serial Numbers and Software Revision

Pressing the SERIAL # softkey within the help system displays information on serial numbers and software revision codes of the instrument.

If there are warnings or errors pending (indicated by a flushing W or E), pressing the HELP key displays a list of the current messages. Using the ERROR QU and WARNING softkeys, you can toggle between both lists. For more information on warnings and errors, see Warnings and Errors on

page 72.

To exit from the help system, press the HELP key again, or press the EXIT HELP softkey.

Introducing the Agilent 81101A Pulse Generator

The Rear Panel

The rear panel always provides two connectors:



The input connector for external frequency reference (CLOCK/REF INP.). This input can be used if a higher frequency accuracy is required, or if you need frequency locking.



The GP-IB connector providing the interface for remote control.

The following figure shows the rear panel view with the option UN2.

GP-IB ConnectorExternal Reference

Inputs and Outputs

With option UN2 the major inputs and outputs of the instrument (as described in The Front Panel on page 18) are available at the rear panel:



external input (EXT INPUT)



strobe output (STROBE OUT)



trigger signal (TRIGGER OUT)



signal output (OUTPUT)

Fuse Holder AC Line Socket

Serial Number

2Getting Started

The intention of this chapter is to give the necessary steps to set up generic signals for first-time users of the Agilent 81101A.

This chapter provides examples for the following types of signals:



“Setting Up a Clock Signal” on page 30



“Setting Up a Pulse Signal” on page 35



“Setting Up a Burst Signal” on page 39

At the end of each example, the required set of device commands is listed to provide programming examples. For further information on the commands and a complete command reference please refer to the Reference Guide, p/n 81101-91021.

The examples are intended to be performed one after the other. Therefore, the first example provides the most detailed instructions, while the other examples are described on a higher level.

Getting Started

Setting Up a Clock Signal

Ta sk

Instructions

Set up a continuous clock signal with 25 MHz frequency with PLL accuracy, a duty cycle of 50 %, 6 ns transition times, a high level of 2.5 V and low level of 0 V.

Duty Cycle = 50 %

2.5 V

0.0 V

f = 25 MHz

To set the

Reset all parameters and modes by pressing SHIFT + STORE (RECALL) + 0.

Press the MODE/TRG softkey to enter the Mode/Trigger screen. Trigger mode CONTINUOUS and operating mode PULSES are

selected by default.

Move the entry focus down to P select

operating mode and trigger mode

ULSE-PERIOD

INTERNAL

PLL.

as required:

and turn the knob to

CONTINUOUS PULSES Single-Pulses at Out1

Pulse-Period: internal PLL

OUTPUT TRG-LEVLIMITSMODE/TRG

MODIFY

intOsc intPLL *CLK-IN

Getting Started

Setting Up a Clock Signal

To set the

Press the OUTPUT softkey to enter the Output screen.

Press SHIFT + 0 (ON/OFF). This turns on the Output and activates the internal error check to

detect parameter conflicts.

Move the entry focus to P

Move the entry focus to the right (to the frequency entry field) and enter a value of 25 MHz by pressing 2 + 5 +

A warning is displayed, indicating a potential conflict in your settings. You can ignore this, because the conflict will be solved in the next steps.

Move the entry focus down to W

Move the entry focus to the right and enter 50 % by typing 5 + 0 + ENTER.

Move the entry focus down to the leading edge entry field and press 6 +

The trailing edge is set to be the same as the leading edge (T L

Freq 25.00MHz Normal ON

timing parameters

NANO

E) by default.

EAD

as required:

and turn the knob to select F

MICRO/MEGA

and select D

IDTH

UTYCYC

REQ

le.

RAI

MODIFY

E =

Delay1 0.0ps DtyCyc LeadE TraiE

50.00%

6.00ns

=LeadE

Offset Amplit

ΩΩΩΩ

into 50.0

+0.0mV

1.00V

ΩΩΩΩ

OUTPUT TRG-LEVLIMITSMODE/TRG

Press SHIFT + MORE (GRAPH) to see a preview of your signal.

6.00

Getting Started

Setting Up a Clock Signal

1 ON

LeadEdge1

6.00

OUTPUT TRG-LEVLIMITSMODE/TRG

You can modify the parameter displayed in the Modify/Enter area, and immediately check how your changes affect the signal. Use the cursor keys to switch to another parameter.

Press SHIFT + MORE (GRAPH) to return to the textual screen.

To set the

Move the entry focus to O select H

Move the entry focus to the high level entry field, enter 2.5 and press the ENTER key.

In the same way, enter 0 for the low level. The impedance is 50Ω source into 50Ω load by default.

level parameters

IGH-LOW

as required:

FFSET/AMPLITUDE

and turn the knob to

NOTE

Freq 25.00MHz Normal ON

Delay1 0.0ps DtyCyc LeadE TraiE

50.00%

6.00ns =LeadE

High Low

ΩΩΩΩ

into 50.0

+2.50V

+0.00V

ΩΩΩΩ

MODIFY

+2.50

OUTPUT TRG-LEVLIMITSMODE/TRG

There is also a graphical screen available for the level parameters.

Getting Started

Setting Up a Clock Signal

Here is the signal as displayed on an Agilent 54810A Infinium oscilloscope. Use the generator’s TRIGGER OUT to trigger the scope.

Getting Started

Setting Up a Clock Signal

Programming Example

If you want to include this clock signal in your GP-IB program, use the following command lines. The comment lines starting with a # are not required.

# Reset the instrument to start from a defined, default status. *RST

# Switch off the automatic display update to increase programming # speed. :DISPlay OFF

# Internal PLL has to be set as period source. :ARM:SOURce INT2

# Set the frequency to 25 MHz, the duty cycle to 50 % and the # leading and trailing edge to 6 ns. :FREQuency 25 MHZ :PULSe:DCYCle 50 :PULSe:TRANsition 6NS

# Set the high level to 2.5 Volts, the low level to 0.0 Volts. :VOLTage:HIGH 2.5V :VOLTage:LOW 0V

# Enable the output. :OUTPut ON

Setting Up a Pulse Signal

Getting Started

Setting Up a Pulse Signal

Ta sk

Instructions

Set up a continuous pulse signal with 50 ns period, a pulse width of 30 ns, a leading edge of 6 ns, a trailing edge of 10 ns, an amplitude of 3.3 V and an offset of 1.65 V (high level 3.3 V, low level 0.0 V).

Pulse Width = 30 ns

3.3 V

50 %

0.0 V

Period = 50 ns

To set the

Reset all parameters and modes by pressing SHIFT + STORE + 0.

Press the MODE/TRG softkey to enter the Mode/Trigger screen. The default settings can be used for this example. For reference the

Mode/Trigger screen is displayed. There is nothing to change.

CONTINUOUS

operating mode and trigger mode

PULSES

as required:

MODIFY

Single-Pulses at Out1

*PulseStrm Burst

Pulse-Period: internal Osc

OUTPUT TRG-LEVLIMITSMODE/TRG

Getting Started

Setting Up a Pulse Signal

To set the

Press the OUTPUT softkey to enter the Output screen.

Switch on the output.

Enter a period of 50 A warning is shown, which you may ignore, because the parameter

conflict will be solved in the next steps.

Enter a pulse width of 30

Enter 6

For the trailing edge, select A

Per 50.00ns Normal ON

Delay1 0.0ps Width LeadE TraiE

timing parameters

for the leading edge.

Offset

30.00ns

6.00ns

Amplit 50

10.0ns

as required:

BSOLUTE

+0.0mV

1.00V

ΩΩΩΩ

into 50.0

and enter a value of 10 NS.

MODIFY

10.0

ΩΩΩΩ

OUTPUT TRG-LEVLIMITSMODE/TRG

To set the

Enter an offset of 1.65 V.

Enter an amplitude of 3.30 V.

level parameters

as required:

Per 50.00ns Normal ON

Delay1 0.0ps Width LeadE TraiE

30.00ns

6.00ns

10.0ns

Offset Amplit 50

ΩΩΩΩ

into 50.0

OUTPUT TRG-LEVLIMITSMODE/TRG

+1.65V

3.30V

ΩΩΩΩ

MODIFY

3.30

Getting Started

Setting Up a Pulse Signal

Here is the figure as displayed on the Agilent 54810A Infinium oscilloscope. Use the generator’s TRIGGER OUT to trigger the scope.

Getting Started

Setting Up a Pulse Signal

Programming Example

If you want to include this pulse signal in your GP-IB program, use the following command lines. The comment lines starting with a # are not required.

# Reset the instrument to start from a defined, default status. *RST

# Switch off the automatic display update to increase programming # speed. :DISPlay OFF

# Pulse stream operating mode is required, but as we start # from a default status it is not necessary to send a command for # setting the instrument into pulse stream operating mode. # Set the period to 50 ns, the pulse width to 20 ns, the leading # edge to 6 ns and the trailing edge to 10 ns. :PULSe:PERiod 50NS :PULSe:WIDTh 30NS :PULSe:TRANsition 6NS :PULSe:TRANsition:TRAiling:AUTO OFF :PULSe:TRANsition:TRAiling 10NS

# Set the amplitude to 3.3 Volts, the offset to 1.65 Volts. :VOLTage 3.3V :VOLTage:OFFSet 1.65V

# Enable the output :OUTPut ON

Setting Up a Burst Signal

Getting Started

Setting Up a Burst Signal

Ta sk

Instructions

Set up a burst signal with a burst repetition of 2 µs. Each burst consists of two double-pulses at a period of 500 ns. The pulse width is 100 ns, the delay between the two pulses of a double-pulse is 200 ns. The levels are 2 Vpp amplitude and 0 V offset.

Double Pulse Delay = 200 ns

1 V

0 V

1 V

Pulse Period = 500 ns

Burst Repetition = 2 µs

To set the

Reset all parameters and modes by pressing SHIFT + STORE + 0.

Press the MODE/TRG softkey to enter the Mode/Trigger screen.

operating mode and trigger mode

as required:

The internal PLL is used to trigger the startable internal oscillator. The PLL defines the burst repetition, the oscillator generates the pulse period. This requires the following settings:

Move to CONTINUOUS and turn the knob to select T

Move to PULSES and select B

Move down and select D

Move left and select a burst length of 2.

Move down and select T (burst repetition)

OUBLE

RG’D BY

URST

OUBLE-PULSES AT OUT

: PLL and set the period to 2.000µs

RIGGERED

1).

Getting Started

Setting Up a Burst Signal

TRIGGERED BURSTS OF 2-Double-Pulses at Out1

Pulse-Period: internal Osc Trg'd by: PLL ->

Per 2.000

µµµµ

OUTPUT TRG-LEVLIMITSMODE/TRG

To set the

Press the OUTPUT softkey to enter the Output menu.

Switch on the Output.

Enter a pulse period of 500

Enter a double-pulse delay (D

To set the

Enter an amplitude of 2.00 V.

timing parameters

level parameters

as required:

BLDEL

as required:

) of 200NS.

Per 500.0ns Normal ON

MODIFY

2.000

µµµµ

MODIFY

DblDel1 200.0ns Width LeadE TraiE

100.0ns

5.00ns =LeadE

OUTPUT TRG-LEVLIMITSMODE/TRG

Offset Amplit 50

ΩΩΩΩ

into 50.0

+0.0mV

2.00V

ΩΩΩΩ

2.00

Getting Started

Setting Up a Burst Signal

The following figure shows the signals as displayed on the Agilent 54810A Infinium Oscilloscope if you connect OUTPUT to channel 1, STROBE OUT to channel 2, and use the generator’s TRIGGER OUT to trigger the scope.

Getting Started

Setting Up a Burst Signal

Programming example

If you want to include this burst signal in your GP-IB program use the following command lines. The comment lines starting with a # are not required.

# Reset the instrument to start from a defined, default status. *RST

# Switch off the automatic display update to increase programming # speed. :DISPlay OFF

# Set the instrument to burst mode by selecting a burst count # of 2. Choose double pulses. Select triggered mode by selecting # PLL as the trigger source and set the burst repetition to 2 µs. :TRIGger:COUNt 2 # Set Burst mode with burst count of 2 :ARM:SOURce INT2 # Set Triggered mode with PLL as

# trigger source :ARM:PERiod 2US # Set burst repetition of 2 µs :PULSe:DOUBle ON # second channel generates double pulses

# per period

# Set the double pulse delay to 200 ns and the width to 100 ns. :PULSe:PERiod 500NS :PULSe:WIDTh 100NS :PULSe:DOUBle:DELay 200NS

# Set the output amplitude to 2 Volts and the offset to # 0.0 Volts. :VOLTage 2V

# Enable the output. :OUTPut ON

3Using the Agilent 81101A

This chapter provides complete reference information for using the Agilent 81101A by means of the user interface screens.

Each screen is described in detail. To access the individual screens, use the softkeys below the screen. There are two softkey layouts:



the default layout

OUTPUT TRG-LEVLIMITSMODE/TRG



the alternative layout displayed after pressing the MORE key

TRG-LEV CONFIGMEMCARDMODE/TRG

At the end of this chapter, Warnings and Errors on page 72 provides details on the instruments warning and error messaging system.

NOTE

For general information on using the Agilent 81101A and information on the instruments hardkeys, please refer to Chapter 1 Introducing the

Agilent 81101A Pulse Generator on page 15.

For information on using the Agilent 81101A via remote control, please refer to the Reference Guide, part number 81101-91021.

Using the Agilent 81101A

The Mode/Trigger Screen

This section describes the Mode/Trigger screen, starting with an overview of the available parameter combinations, followed by detailed descriptions of each combination.

Overview

To access the Mode/Trigger screen, press the MODE/TRG softkey.

The following figure shows a typical Mode/Trigger screen, where the individual parameters are indicated. The parameter combinations are listed in the table on the next page.

➀

TRIGGERED BURSTS OF 2-Double-Pulses at Out1

➃ ➄

Pulse-Period: internal Osc Trg'd by: PLL ->

In this screen, you can set up the signal to be triggered or continuous, and to be a pulse stream or a burst (several pulses followed by a pause) consisting of single or double pulses.

➁

Per 2.000

OUTPUT TRG-LEVLIMITSMODE/TRG

➅

➂

MODIFY

2.000

µµµµ

Using the Agilent 81101A

The Mode/Trigger Screen

Furthermore, you can specify the pulse and trigger sources.

The following table provides a list of possible parameter combinations. The rows refer to the numbers in the figure.

Trigger Mode Continuous Triggered Gated Ext. Width

➀

Pulse Mode Pulses Burst Pulses Burst Pulses Burst

➁

Pulse Type

➂

Length

➃

Period Source

➄

Arming Source

➅

Trigger Out

Strobe Out

Single/Double Single/Double Single/Double

265536 265536 265536

internal Osc. internal PLL CLK-IN

not used

on 1st

↑

on last

↓

MAN

key

Ext. Input

marks each pulse period generated

not used

internal Osc. internal PLL CLK-IN

MAN

key Ext. Input PLL

on1st

↑

on last

↓

internal Osc. internal PLL CLK-IN

MAN

key

Ext. Input

not used

↑ ↓

on 1st on last

MAN

key

Ext. Input

not used

The pulse period source can be selected from internal oscillator, internal PLL, and external CLK-IN:



If you have to trigger after an external event, use the startable oscillator (

internal Osc.

), which starts on the external signal with a

fixed latency.



If you do not have to trigger but need a high accuracy frequency, then use the



For even more accuracy, you can use the external CLK-IN.

internal PLL

clock generation circuitry.

In triggered/gated mode the internal PLL can be used as an arming source. However, the internal PLL cannot be used as pulse and arming source at the same time.

The following sections explain the individual mode combinations in more detail. For each combination of trigger mode and pulse mode, typical timing diagrams are provided, showing single and double pulses.

Using the Agilent 81101A

The Mode/Trigger Screen

Continuous Pulses Mode

The following figure shows typical timings for trigger mode CONTINUOUS and pulse mode PULSES.

Period Source

int Osc, int PLL or Ext Clock

TRIGGER OUT

OUTPUT

Single Pulse

OUTPUT

Double Pulse

Period

Characteristics

NOTE



Pulse periods are generated continuously.



You can select single pulses or double pulses per pulse period.



For the pulse period source you can select from



internal Osc (VFO)



internal PLL (higher accuracy)



external CLK-IN (external signal), synchronize to rising or falling edge



TRIGGER OUT marks each pulse period.

STROBE OUT is not used in continuous pulse mode.

Using the Agilent 81101A

The Mode/Trigger Screen

Continuous Burst Mode

The following figure shows typical timings for trigger mode CONTINUOUS and pulse mode BURST.

Burst of 3

Period

Period Source

int Osc, int PLL or Ext Clock

OUTPUT

Single Pulse

OUTPUT

Double Pulse

TRIGGER OUT

Characteristics

STROBE OUT

1st period



A burst of pulse periods is repeated continuously.



You can select the number of pulse periods per burst in the range of

last period

265536.



You can select single pulses or double pulses per pulse period.



For the pulse period source you can select from



internal Osc (VFO)



internal PLL (higher accuracy)



external CLK-IN, synchronize to rising or falling edge.



TRIGGER OUT marks each pulse period.



STROBE OUT rises at the start of the first pulse period in a burst, and falls at the start of the last pulse period.

Using the Agilent 81101A

The Mode/Trigger Screen

Triggered Pulses Mode

The following figure shows typical timings for trigger mode TRIGGERED and pulse mode PULSES. The pulses are triggered by the rising edge of the arming source.

Arming Source

Trg'd by: Ext Input or MAN Key

TRIGGER OUT

OUTPUT

Single Pulses

OUTPUT

Double Pulses

Trg'd by:

Characteristics

NOTE

STROBE OUT



Single pulse periods are triggered by (T

RG'D BY

) an active edge at the

selected arming source:



MAN key on front panel, triggered by press or release or both.



EXT INPUT triggered by rising or falling or both edges.



You can select single pulses or double pulses per pulse period.



TRIGGER OUT marks each pulse period.



STROBE OUT is not used in triggered pulse mode.

The PLL cannot be selected as the arming source. Select continuous pulse mode with the PLL as period source to achieve the same result.

Using the Agilent 81101A

The Mode/Trigger Screen

In contrast to the previous figure, this figure shows a timing diagram where the pulses are triggered by both rising and falling edges of the arming source.

Trg'd by:

Arming Source

(Trg'd by:)

Ext INPUT or MAN Key

OUTPUT

Single Pulses

OUTPUT

Double Pulses

TRIGGER OUT

STROBE OUT

Minimum Width

Using the Agilent 81101A

The Mode/Trigger Screen

Triggered Burst Mode

The following figures show typical timings for trigger mode TRIGGERED and pulse mode BURST. The bursts are triggered by the rising edge of the arming source.

For the first example, the synchronously triggerable internal oscillator is used to source the period.

Characteristics

Trg'd by:

ARMING SOURCE

(Trg'd by:) EXT INPUT

or MAN Key

or PLL

PERIOD SOURCE

internal Osc.

OUTPUT

Single Pulses

OUTPUT

Double Pulses

TRIGGER OUT

STROBE OUT



A burst of pulse periods is triggered by an active edge at the selected

Period

1st period

Burst of 3

last period

Oscillator starts synchronously

1st period

arming source



MAN key on front panel, triggered by press or release or both.



EXT INPUT triggered by rising or falling or both edges.



PLL (internally triggered bursts)

When using the internal PLL as the arming source, you must specify the triggering period.



You can select the number of pulse periods per burst in the range of 265536.



You can select single pulses or double pulses per pulse period.

Using the Agilent 81101A

The Mode/Trigger Screen



TRIGGER OUT marks each pulse period.



STROBE OUT rises at the start of the first pulse period in a burst and falls at the start of the last pulse period.

NOTE

For the second example, either the internal PLL or an external CLK-IN

or MAN Key

OUTPUT

Single Pulses

OUTPUT

Double Pulses

Trg'd by:

Period

1st period

PLL/CLK-IN NOT synchronous to EXT INPUT

DELAY = n * Period, 1 < n ≤ 2

Burst of 3

last period

1st period

are used to source the periodboth cannot be triggered synchronously.

ARMING SOURCE

(Trg'd by:) EXT INPUT

PERIOD SOURCE

internal PLL or CLK-IN.

TRIGGER OUT

STROBE OUT

You cannot use the PLL as both pulse period source and arming (T

RG'DBY

) source at the same time.

Using the Agilent 81101A

The Mode/Trigger Screen

Gated Pulses Mode

The following figures show typical timings for trigger mode GATED and pulse mode PULSES.

For the first example, the synchronously triggerable internal oscillator is used to source the period.

Characteristics

Gated by:

ARMING SOURCE

(Gated by:) EXT INPUT

or MAN Key

Period

PERIOD SOURCE



internal Osc

OUTPUT

Single Pulses

OUTPUT

Double Pulses

TRIGGER OUT

STROBE OUT

Pulse periods are gated by (enabled by) an active level at the selected

Oscillator starts synchronously

arming source:



MAN key on the front panel, gated while pressed or released or both.



EXT INPUT (external signal) gated by high, low or both levels.



You can select single pulses or double pulses per pulse period.



TRIGGER OUT marks each pulse period.



STROBE OUT is not used in gated pulses mode.

Using the Agilent 81101A

The Mode/Trigger Screen

For the second example, either the internal PLL or an external CLK-IN are used to source the periodboth cannot be triggered synchronously.

ARMING SOURCE

(Gated by:) EXT INPUT

or MAN Key

PERIOD SOURCE

internal PLL or CLK-IN

OUTPUT

Single Pulses

OUTPUT

Double Pulses

TRIGGER OUT

STROBE OUT

Gated by:

Period

PLL/CLK-IN NOT Synchronous to EXT INPUT

DELAY = n * Period, 1 < n ≤ 2

Using the Agilent 81101A

The Mode/Trigger Screen

Gated Burst Mode

The following figures show typical timings for trigger mode GATED and pulse mode BURST.

For the first example, the synchronously triggerable internal oscillator is used to source the period.

Characteristics

Gated by:

ARMING SOURCE

(Gated by:) EXT INPUT

or MAN Key

PERIOD SOURCE

internal Osc.

OUTPUT

Single Pulses

OUTPUT

Double Pulses

TRIGGER OUT

STROBE OUT

1st period



Bursts of pulse periods are gated by (enabled by) an active level at

Period

Oscillator starts synchronously

Burst of 3

last period

1st period

last period

the selected arming source:



MAN key on the front panel, gated while pressed or released or both.



EXT INPUT (external signal) gated by high, low or both levels.



You can select single pulses or double pulses per pulse period.



TRIGGER OUT marks each pulse period.



STROBE OUT rises at the start of the first pulse period in a burst and falls at the start of the last pulse period.

Using the Agilent 81101A

The Mode/Trigger Screen

For the second example, either the internal PLL or an external CLK-IN are used to source the periodboth cannot be triggered synchronously.

ARMING SOURCE

(Gated by:) EXT INPUT

or MAN Key

PERIOD SOURCE

internal PLL. or CLK-IN

OUTPUT

Single Pulses

OUTPUT

Double Pulses

TRIGGER OUT

STROBE OUT

Gated by:

Period

1st period

PLL/CLK-IN NOT Synchronous to EXT INPUT

DELAY = n * Period, 1 < n

Burst of 3

last period

≤

1st period

last period

External Width Mode

In external width mode, the pulse width is determined by an external signal. You can choose between:



MANK

: Pressing the key generates a leading edge, releasing the key

generates a trailing edge.



EXT-IN: A rising edge at the EXT INPUT generates a leading edge, a falling edge generates a trailing edge.

The threshold and impedance of the EXT INPUT can be set on the Trigger Level screen.

The period, delay, and width of the output pulse are not programmable in this mode, because they are determined by the external signal.

The TRIGGER OUT rises and falls parallel to the OUTPUT signal.

Using the Agilent 81101A

The Output Screen

The Output screen shows both timing and level parameters on one screen.

To access the Output screen, press the OUTPUT softkey.

Timing Parameters

You can use the left part of the Output screen to view and control the pulse timing parameters.

NOTE

1.000

Per

Delay Width LeadE TraiE

0ps

100.0ns

5.00ns =LeadE

µµµµ

s Normal OFF

Offset Amplit 50

ΩΩΩΩ

+0.0mV

1.00V

into 50.0

*Period Frequency

ΩΩΩΩ

MODIFY

OUTPUT TRG-LEVLIMITSMODE/TRG

The individual timing parameters are described in more detail in the following. All parameters can be entered in different formats.

With the Agilent 81101A you can vary timing parameters without the risk of glitches or drop outs, which could cause measurement errors. This applies to continuous mode with timing values < 100 ms (frequency < 10 Hz), and consecutive values between one-half and twice the previous value.

Using the Agilent 81101A

The Output Screen

When you press SHIFT + MORE (GRAPH) while one of the timing parameters is selected, you will see a graphical representation of the timing parameters. The currently selected parameter is displayed in the Modify/ Enter area and is indicated by dashed or bold lines in the graphical display.

1 OFF

NOTE

Width1

100.0

OUTPUT TRG-LEVLIMITSMODE/TRG

1 OFF

PERIOD

1.000

µµµµ

OUTPUT TRG-LEVLIMITSMODE/TRG

Use the left/right cursor keys to toggle between the individual timing parameters.

Note that in graphics mode you can only adjust the values of each parameter, not the parameter format. If you want to change the format of a parameter, for example W select the parameter name with the cursor.

Pulse Period Parameter

to DTYCYC, you must be in text mode to

IDTH

Set the pulse period as either P

If you select the CLK-IN as the pulse period source on the Mode/Trigger screen, the pulse period/frequency is determined from the signal applied to the CLOCK/REF INP. connector:



EAS ONCE

The external signal is measured only once. Press ENTER to measure again.

ERIOD

or F

REQUENCY

Using the Agilent 81101A

The Output Screen



Pulse Delay Parameter

Delay the leading edge of the pulse within the pulse period. There are three delay formats available:



EAS CONT

The external signal is continuously measured until the instrument receives a command via GP-IB.

To invoke continuous measurements again, you have to bring the instrument in local operating mode by pressing SHIFT (LOCAL) and start continuous measurement again.

or DBLDEL (select A

ELAY

is the absolute delay from the start of a pulse period to the

ELAY

BSOLUTE

)

start of the leading edge of the pulse. If double pulses are selected on the Mode/Trigger screen, the D

BLDEL

parameter specifies the delay between the first and second pulse in each pulse period.

The absolute delay is independent of the pulse period. So the leading edge does not move relative to the start of the period if you change the period.



% (select % OF P

ELAY

ERIOD

)

The delay from the start of the pulse period to the start of the leading edge expressed as a percentage of the pulse period. In this format, if you change the period, the leading edge moves relative to the start of the period in order to maintain the percentage delay.



HASE

(select P

HASE

)

The phase delay in degrees from the start of the pulse period to the start of the leading edge (360° = 1 pulse period). In this format, if you change the period, the leading edge moves relative to the start of the period in order to maintain the phase delay.

Using the Agilent 81101A

The Output Screen

Pulse Width Parameter

Set the width of the output pulse. There are three width formats available:



(select W

IDTH

The absolute pulse width measured from the start of the leading edge to the start of the trailing edge. In this format, the pulse width is independent of changes in pulse period and delay.

IDTH

)

NOTE



TYCYC

(select D

UTYCYCLE

)

The duty cycle is the pulse width measured from the start of the leading edge to the start of the trailing edge expressed as a percentage of the period. In this format, if you adjust the period, the absolute width is adjusted to maintain the duty cycle.



RADEL

(select T

RAILDEL

)

The trailing delay is the absolute delay from the start of the pulseperiod to the start of the trailing edge. In this format the trailing edge remains fixed relative to the start of the pulse period if you adjust the pulse delay (leading edge delay) or the pulse period.

You cannot have the width format set to D edge format set to percentage of width (L

EADED

and the leading/trailing-

TYCYC

%/T

E%) at the same

RAIL

time.

Leading Edge Parameter

Set the leading edge transition time of the pulse, measured from 10% to 90% of the pulse amplitude. There are two formats available:



E (select A

EAD

BSOLUTE

The absolute transition time measured from 10% to 90% of the pulse amplitude. In this format the leading edge is independent of the pulse width.

)



E% (select % OF WID)

EAD

The absolute transition time expressed as a percentage of the pulse width. In this format, if you adjust the pulse width, the transition time is adjusted to maintain the edge time as a percentage of the width.

Using the Agilent 81101A

The Output Screen

NOTE

The leading and trailing edges are independently programmable within certain ranges only, see Transition Times in the Reference Guide.

You cannot have the width format set to D edge format set to percentage of width (L

EAD

and the leading/trailing-

TYCYC

E%/T

E%) at the same

RAI

time.

Pulse Trailing Edge Parameter

Set the trailing edge transition-time of the pulse, measured from 10% to 90% of the pulse amplitude. There are three formats available:



E (select =L

EAD

The trailing edge transition time is coupled directly to the leading edge to maintain a symmetrical pulse.



E (select A

RAI

BSOLUTE

The absolute transition time measured from 90% to 10% of the pulse amplitude. In this format the trailing edge is independent of the leading edge and the pulse width.



E% (select % OF WID)

RAI

The trailing edge transition time expressed as a percentage of the pulse width. In this format, if you adjust the pulse width, the transition time is adjusted to maintain the edge time as a percentage of the width.

EAD

)

NOTE

The leading and trailing edges are independently programmable within certain ranges only, see Transition Times in the Reference Guide.

You cannot have the width format set to D edge format set to percentage of width (L

EAD

and the leading/trailing

TYCYC

E%/T

E%) at the same

RAI

time.

Using the Agilent 81101A

The Output Screen

Level Parameters

You can use the right part of the Output screen to view and control the pulse level parameters and to enable or disable the outputs.

Per 1.000

Delay1 0ps Width LeadE TraiE

The individual level parameters are described in more detail in the following. All parameters can be entered in different formats.

When you press SHIFT + MORE (GRAPH) while one of the level parameters is selected, you will see a graphical representation of the level parameters. The currently selected parameter is displayed in the Modify/Enter area and is indicated in the graphical display.

OFF

µµµµ

s Normal

100.0ns

5.00ns =LeadE

OUTPUT TRG-LEVLIMITSMODE/TRG

+11V

Offset Amplit

ΩΩΩΩ

into 50.0

OFF

+0.0mV

1.00V

ΩΩΩΩ

MODIFY

*OFF ON

Amplitude1

1.00

-11V

OUTPUT TRG-LEVLIMITSMODE/TRG

When output limits are on, the limits are indicated on the Output screen in graphics mode (see The Limits Screen on page 64).

Using the Agilent 81101A

The Output Screen

NOTE

Note that in graphics mode you can only adjust the values of each parameter, not the parameter format. If you want to change the format of a parameter, for example O

FFS-AMPL

to H

IGH-LOW

, you must be in text

mode to select the parameter name with the cursor.

When the output is switched on, the instrument monitors the actual voltage and current levels at the output. The output is automatically switched off if voltage levels or power dissipation reach levels which could damage the output circuits.

Normal/Complement Parameter

Switch the output between normal and complement mode:



ORMAL

Pulse leading edge rises from low to high level, trailing edge falls from high to low level.



OMPLMNT

Pulse leading edge falls from high to low level, trailing edge rises from low to high level.

This parameter is only available in text mode.

Offset/Amplitude, High/Low Level Parameters

Set and display the pulse levels in terms of either offset and amplitude, or high and low level. You can quickly set TTL or ECL output levels using the S



TTL and SET ECL formats.

TTL

Select high and low level formats and automatically set the levels to the default TTL levels:

TTL-HI: +2.50 V TTL-LOW: +0.0 mV

The default levels are set once and can be adjusted afterwards by moving the entry focus to the values as normal.



IGH-LOW

Select high and low level format for the pulse levels.

Using the Agilent 81101A

The Output Screen



FFS-AMPL

Select offset and amplitude format for the pulse levels. Offset is measured from 0V to the middle of the pulse amplitude. Pulse amplitude is the difference between the high and low levels of the pulse.



ECL

Select high and low level format and automatically set the levels to the default ECL levels:

ECL-HI: 850 mV ECL-LOW: 1.80 V

These default levels are set once and can be adjusted afterwards by moving the entry focus to the value as normal.

Voltage/Current Mode (mV/V/mA/A)

Move the entry focus onto the level units to select between setting the pulse levels

IN VOLTS

or IN A

MPERES

NOTE

This parameter is only available in text mode.

Output Source Impedance Parameter (50Ω into)

Select an output source impedance of 50 Ω or 1 kΩ.

This parameter is only available in text mode

Load Impedance Parameter (50.0Ω)

Adjust the load impedance value expected at the output to compensate for non-50Ω loads. The displayed level parameters are then calculated using this value and therefore represent the levels at a non-50Ω static load.

This parameter is only available in text mode.

Using the Agilent 81101A

The Limits Screen

Use the Limits screen to set up voltage and current limits for the pulse level parameters to prevent accidental damage of the device under test.

To access the Limit screen, press the LIMIT softkey.

Limits OFF

High-V +500mV Low-V -500mV High-A +10.0mA Low-A -10.0mA

OUTPUT TRG-LEVLIMITSMODE/TRG

After you switch on the limits, the pulse level parameters on the OUTPUT screen cannot be adjusted outside the ranges specified on the LIMITS screen if the output is switched on. Note that because current and voltage limits apply, the available ranges of the impedance parameters are also affected.

When output limits are on, the limits are indicated on the OUTPUT screen in graphics mode, and the level bar is scaled accordingly:

+1V

OFF

MODIFY

*OFF ON

Amplitude1

500

-1V

OUTPUT TRG-LEVLIMITSMODE/TRG

Using the Agilent 81101A

The Trigger-Level Screen

Use the Trigger-Level screen to



set the triggering threshold and input impedance for the EXT INPUT connector,



set the triggering threshold and input impedance for the CLOCK/REF INP. connector,



set the output levels for the STROBE OUT and TRIGGER OUT connectors.

To access the Trigger-Level screen, press the TRG-LEV softkey.

EXT-IN: Threshold

+1.0V 50

CLK-IN: Threshold +1.0V 50

ΩΩΩΩ

MODIFY

Set TTL Set ECL

TRIGGER-OUT: TTL

*Voltage

STROBE-OUT : TTL

OUTPUT TRG-LEVLIMITSMODE/TRG

Threshold and Impedance Parameters

You can individually specify threshold and input impedance of the EXTIN and the CLK-IN connectors.

EXT-IN and CLK-IN Threshold Parameters

Move the entry focus to EXT-IN or CLK-IN to quickly set the triggering threshold of the external input or the clock input to a TTL- or ECLcompatible level:

Using the Agilent 81101A

The Trigger-Level Screen



S Set the input threshold to +2.5 V. You can adjust the threshold by moving the entry focus to the value.



S Set the input threshold to 1.3 V. You can adjust the threshold by moving the entry focus to the value.



V Set any threshold level in the range of 10.0 V to +10.0 V. Move the

entry focus to the value to adjust it.

EXT-IN and CLK-IN Impedance Parameters

Toggle the input impedance of the external input connector or the clock input connector between 50Ω and 10 kΩ.

Trigger and Strobe Level Parameters

TTL

ECL

OLTAGE

You can individually set the output levels of the TRIGGER OUT connector and the STROBE OUT connector.

Set the output levels (into 50 Ω) to



TTL High level: +2.50 V Low level: 0 V



ECL High level: 0.85 V Low level: 1.80 V

Using the Agilent 81101A

The Memory Card Screen

Use the Memory Card screen to



store instrument settings to the memory card,



recall instrument settings from the memory card,



delete files from the memory card,



format a memory card.

To access the Memory Card screen, press the MEMCARD softkey. If the MEMCARD softkey is not displayed, press MORE.

Dir Path \

Filename TESTVI.TXT

MODIFY

*BURSTS PULSES

Perform Operation

TRG-LEV CONFIGMEMCARDMODE/TRG

Directory Path Parameter

Move the entry focus to DIR P card, or to view the sub-directories of the current directory (the name of the current directory is displayed next to D

All sub-directories of the current directory are listed in the Modify/Enter area.

To change the directory, turn the knob to select the directory name and press the ENTER key.

Note that when you are in a sub-directory you can return to the parentdirectory by selecting .. from the directory list.

to change the directory on the memory

ATH

IR PATH

Using the Agilent 81101A

The Memory Card Screen

Filename Parameter

CAUTION

Move the entry focus to the F

ILENAME

parameter to select a file from the current directory. Use the knob to scroll through the filenames listed in the Modify/Enter area.

Memory Card Operations

Move the entry focus to P

ERFORM OPERATION

the required operation. Press the ENTER key to perform the operation.



EADCARD

Read the DOS file system information from the memory card after inserting a new card.



ECALL

Recall the selected file as the current instrument setting.



TORE

Store the current instrument setting to the memory card. Press ENTER once to start editing the filename for the setting in the

Modify/Enter area. The currently selected filename is used as default.

If you do not modify the filename, the existing file will be overwritten when you press ENTER.

To modify the filename, move the character cursor with the cursor keys. Modify a character using the knob. When you have finished, press ENTER to store the setting.

The filename can be up to 8 characters long. Press the cursor up or cursor down keys to cancel the store operation

at any time. Note that the DOS filename suffix .ST0 is added automatically to the

filename when you store the current settings.

and use the knob to select



TORE ALL

Store the current instrument setting and the instrument setting memories 1 to 9 to the memory card. Each setting is stored in a separate file with the same name but different suffixes (.ST0 for the current setting, ST1 to ST9 for setting memories 1 to 9).

Using the Agilent 81101A

The Memory Card Screen

Press ENTER once to start editing the filename for the setting in the Modify/Enter area. The currently selected filename is used as default.

CAUTION

If you do not modify the filename, the existing file will be overwritten when you press ENTER.

To modify the filename, move the character cursor with the cursor keys. Modify a character using the knob. When you have finished, press ENTER to store the setting.

The filename can be up to 8 characters long. Press the cursor up or cursor down keys to cancel the store operation

at any time.



ELETE

Delete the selected file from the memory card.



ORMAT

Format the memory card.

Formatting a memory card destroys any existing files on the card.

Using the Agilent 81101A

The Configuration Screen

Use the Configuration screen to



set the GP-IB address of the Agilent 81101A,



perform a selftest,



select the frequency reference source and the frequency for the PLL.

To access the Configuration screen, press the CONFIG softkey. If the CONFIG softkey is not displayed, press MORE.

GPIB-Address: 10

Perform Selftest: µP and Signal

MODIFY

Group Params by: TIMING/LEVELS Pulse-Period: internal PLL

PLL-Ref: Internal Deskew 1: +0ps 2: +0ps

TRG-LEV CONFIGMEMCARDLIMITS

GP-IB Address

Set the GP-IB address for the instrument in the range of 0 to 30. The default address is 10.

Perform Operation Selftest

Move the entry focus to P

If the selftest fails, a flashing E is displayed. Press HELP to see the list of error messages.

ERFORM

: S

ELFTEST

and press the ENTER key.

Using the Agilent 81101A

The Configuration Screen

PLL Reference

Set the frequency reference source for the PLL:



NTERNAL

The internal 5 MHz reference.



CLK-IN An external reference signal at the CLOCK/REF INP. connector. You

can set the expected frequency of the external reference to 5 MHz or 10 MHz.

Using the Agilent 81101A

Warnings and Errors

The Agilent 81101A has two levels of error reporting called warnings and errors. Checking for errors and warnings is always enabled, unless you switch it off via the GP-IB using the

:SYSTem:CHEC k

command.

A warning

to a combination of worst case uncertainties at the current settings of all relevant parameters.

For example, when adjusting the pulse width, all other timing parameters (leading edge, trailing edge, and pulse period) and their uncertainties have to be considered in order to check if the width setting will fits within the pulse period.

Note that the warning limits are therefore not fixed for a particular parameter, but vary with the settings of the related parameters. It is also possible that the error and warning limits are the same, that is, a warning does not occur before the error limit is reached.

If a warning occurs, the settings are still implemented in the hardware because the worst-case conditions used to evaluate the warning limits are very unlikely to occur in practice.

A blinking W indicates that one or more warnings have occurred. Press HELP to view the warning list.



error

An required parameter settings cannot be implemented in the output hardware. Multiple errors can occur, but only the first error detected is displayed.

An error is indicated by a blinking error message at the bottom of the screen.

is generated when the output signal could be invalid due

is generated when an invalid mode is chosen, or the

NOTE

If you are using the knob to adjust parameters it is normally not possible to generate warnings or errors. All parameters are automatically limited to settings that guarantee specified operation.

However, if you press the SHIFT key while turning the knob, you can adjust a parameter beyond its warning limits.

Using the Agilent 81101A

Warnings and Errors

NOTE

You can press SHIFT + HELP (AUTOSET) to carry out an autoset. The instrument resets all parameters, based on the current period setting, to remove all warning and error conditions.

An Example of Warning and Error Reporting

Switch on the instrument and recall the standard settings by pressing SHIFT + STORE (RECALL) + 0.

The period is now set to 1 µs.

Switch on the output by pressing SHIFT + 0 (ON/OFF).

On the Output screen, move the parameter cursor to the value of the W

parameter (100NS).

IDTH

Use the knob to make the pulse width as large as possible (approximately 940

This limit is intended to guarantee that the actual output pulse is within specifications, for the actual period.

The limit is calculated taking into account a worst case combination of minimum period from the period setting (1 width from the width setting (940 and trailing edge settings (5.00

Note that if you now try to adjust the leading edge from its current setting of 5.00 ns with the knob, it cannot be adjusted. This is because the upper and lower warning limits are currently 5.00 ns. The width is at its maximum value and width + leading edge + trailing edge <

) and maximum

) together with minimum leading

period.

NOTE

Press SHIFT and adjust the pulse width above its warning limit. A flashing W appears to indicate that a warning condition has occurred.

Note that as long as no errors occur, the output hardware is set up and attempts to generate the required output.

Press HELP to see the warning message: T

RAILING EDGE

Press HELP again to return to the W

MAY CUT NEXT PULSE

parameter.

IDTH

Using the Agilent 81101A

Warnings and Errors

Increase the pulse width further to approximately 980 ns and press HELP to see the current warnings:

IDTH

TOO CLOSE TO PERIOD

RAILING EDGE

Press HELP again to return to the W

MAY CUT NEXT PULSE

parameter.

IDTH

Increase the pulse width further until a flashing error message appears (approximately 1.10 µs):

OUTPUT 1: W You have reached the current upper error-limit of the W

IDTH

> P

ERIOD

IDTH

parameter. The setting is not implemented in the output hardware.

Press SHIFT + HELP to perform an AUTOSET.

AInstallation & Maintenance

Initial Inspection

Inspect the shipping container for damage. If the container or cushioning material is damaged, keep it until the contents of the shipment have been checked for completeness and the instrument has been verified both mechanically and electrically.

WARNING

To avoid hazardous electric shock, do not perform electrical tests when there are signs of shipping damage to any part of the instruments outer covers or panels.

If the contents are incomplete, or there is mechanical damage, or if the instrument does not work as expected within its specifications, notify the nearest Agilent office. (Please request the latest performance tests from Agilent.) Keep the shipping materials for inspection by the carrier. The Agilent office will arrange for repair or replacement without awaiting settlement.

Initial Inspection

Standard Deliverables

The Agilent 81101A shipping container contains the following standard deliverables:

1. The Agilent 81101A Pulse Generator.

2. The English Quick Start Guide and a Reference Guide.

3. A power cord.

1. Agilent 81101A Pulse Generator

2. This Quick Start Guide and the Reference Guide

3. A Power Cord

Initial Inspection

Options and Accessories:

Options

Rear Panel Connectors Option UN2

All inputs and outputs are at the rear panel

1 MB SRAM Memory Card Option UFJ

(Agilent part number 0950-3380)

The following figure shows the instruments rear panel with Option UN2 installed.

Handle Accessory

Front Handle Kit Agilent part number 5063-9226

Rack Mounting Accessories

Rack Mount Kit Agilent part number 5063-9212

Rack Mount and Front Handle Kit

Rack Slide Kit Agilent part number 1494-0059

Agilent part number 5063-9219

Quick Start Guide Language Options

French Guide Option ABF

(Agilent part number 81101-91220)

Japanese Guide Option ABJ

(Agilent part number 81101-91520)

Taiwan Chinese Guide Option AB0

(Agilent part number 81101-91620)

Korean Guide Option AB1

(Agilent part number 81101-91720)

Chinese Guide Option AB2

(Agilent part number 81101-91820)

Additional Documentation Options

Service Manual Option 0BW

(Agilent part number 81101-91021)

Initial Inspection

Power Requirements

CAUTION

NOTE

Before applying AC line power to the instrument, ensure that the correct line fuse is installed in the fuse holder and the correct power cable is fitted.

When the front panel switch is off, the instrument is in “standby” mode. The instrument is disconnected from the AC line power only by disconnecting the power cord. Please make sure that the power cord is easily identifiable and can quickly be reached by the operator.

The following symbol is close to the ‘Standby’ switch on the front panel of the instrument.

The instrument can operate from any single-phase AC power source supplying 100–240 V in the frequency range from 50 to 60 Hz, or 100– 120 V at 400 Hz. The maximum power consumption is 300 VA with all options installed. When the instrument is switched on the power supply adapts automatically to the applied AC power (Auto Selection) and monitors the AC power range during operation.

Power Requirements

Replacing the Fuse

1 Remove the power cord.

Unscrew the fuse cap at the rear of the instrument beside the powerinlet socket.

Fuse Holder and Fuse Cap

Replace the fuse with the equivalent part:

Agilent

Line Voltage Fuse Type

100–240 V~ T 10A, 250 V 2110-0720

Refit the fuse cap.

Part Number

Power Cable

In accordance with international safety standards, this instrument is equipped with a three-wire power cable. The figure below shows the part numbers of the power cables available. When connected to an appropriate AC power receptacle, this cable grounds the instrument cabinet.

Australia

8120-1369

South Africa

8120-4211

Denmark

8120-2956

Switzerland

Europe

8120-1689

Great Britain

8120-1351

8120-2104

United States 120V

8120-1378

Japan 120V

8120-4753

Ventilation Requirements

The instrument is fitted with three cooling fans. Make sure that there is adequate clearance of 80 mm at the rear and 25 mm at the top and bottom to ensure adequate air flow. If the air flow is restricted, the internal operating temperature will be higher, reducing the instrument's reliability or causing the instrument's thermal-protection circuits to automatically switch off the instrument.

NOTE

Do not cover the ventilation holes.

Thermal Protection

Overheating Detection

The instrument monitors its internal temperature. If the temperature exceeds approximately 80°C, the power supply is switched off. The instrument will switch on again if the temperature falls below approximately 77°C.

Fan Failure

If a fan is broken or prevented from operating by a blockage, the temperature will increase. When the temperature exceeds approximately 80°C the overheating detection switches off the instrument for safety reasons. For reliability it is recommended to send instruments with broken or defective fans immediately to Agilent Service for repair.

Battery

This instrument contains a lithium battery. Typical life time of the battery is about 5 years.

NOTE

CAUTION

Recycle or dispose used batteries according to local regulations. Or contact your Agilent representative for information on battery recycling.

The battery is replaceable. Replacement should only be carried out by qualified service personnel.

There is a danger of explosion if the battery is incorrectly replaced.

The battery must be replaced with the same or equivalent battery type:

Lithium CR2477-N

The Agilent replacement part number is:

The battery is protected against charging.

Do not crush, puncture, or incinerate the battery. Do not short the battery’s external contacts.

type battery.

1420-0557

Battery Replacement

Battery

NOTE

Disconnect the power cord from AC line voltage to avoid electrical shock.

1 Remove the bumper which is fitted to the front panel.

Remove the strips on the left and right side of the front panel.

Remove the front panel which is secured with two screws at each side.

Disconnect the flat cable which connects the front panel to the chassis.

On the right side of the chassis there is a cover secured with one screw. Remove this cover.

Now the battery can be removed from the battery holder. It is recommended to push the battery on the top, and to pull the battery on the bottom with one finger for easier removal.

Fit the new battery in the holder, take care to not short current the battery on the chassis.

Fit the cover again and secure it with the screw to the chassis.

Re-connect the flat cable of the front panel again to the chassis connector. Make sure that the pin one (red wire) is pointing to the mid of the chassis.

Re-assemble the front cover.

Fit the strips to the sides of the front panel, again.

Fit the bumper to the front panel.

Operating Environment

Storage Temperature –40 °C to +70 °C

Operating Temperature 0 °C to 55 °C

Humidity 95% R.H. (at 40 °C)

Altitude Up to 2000m

Installation Category II

Pollution Degree 2

WARNING

The instrument is not designed for outdoor use. Do not expose the instrument to rain or other excessive moisture. Protect the instrument from humidity and temperature changes which could cause condensation within the instrument.

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

Cleaning Recommendation

WARNING

To prevent electrical shock, disconnect the instrument from mains before cleaning. Use a dry cloth or one slightly dampened with water to clean external case parts. Do not attempt to clean internally.

Acoustic Noise Emission

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

LpA = 52 dBA

Measured in accordance with ISO 7779 / EN 27779.

Geräuschemissionswerte

Bei einer Umgebungstemperatur bis 30°C

LpA = 52 dBA

am Arbeitsplatz, normaler Betrieb.

Angabe ist das Ergebnis einer Typprüfung nach ISO 7779 / EN 27779.

Index

Accessories 78 Acoustic Noise Emission Additional Documentation Amplitude Parameter Automated Testing

26,

Autoset

Battery 84

disposal for memory back-up replacement

type Benefits Burst Mode

continuous

gated

triggered Burst Signal

command list

example

Cable 82 Capabilities

signal generation Certification

met specifications Cleaning Recommendation Clock Signal

command list

example CLOCK/REF INP. connector Command Language Command List

burst signal

clock signal

pulse signal Conditions, environmental Configuration Screen Connectors

front panel

rear panel Continuous Mode

burst

pulses Current limits

34 38

Digits 25

Directory Documentation, additional

Emission

Environmental Conditions Error checking Errors Examples

Exceed

EXT INPUT

EXT INPUT Threshold External PLL Reference External Width Mode

Features 16 Front Panel

Gating

GP-IB

Graphical Display

Handle Accessory 78 Help Information High Accurate Frequency High Level Parameter

IC Technologies 16 Input Impedance

acoustic noise

26,

burst signal clock signal pulse signal

Specified Values

front panel Impedance rear panel

gated burst mode gated pulses mode manual sources

Address automated testing connector

Index

Inspection 76 Installation

Knob 18

Language Options 79 Leading Edge Parameter Level Parameters Limits

overprogramming

screen Line Fuse Load Impedance Parameter LOCAL key Logic Technologies Low Level Parameter

MAN Key 26, 48, 50, 52, 54 Memory Card Screen Modify

resolution Modify Knob MORE key

Normal/Complement Parameter 62

Offset Parameter 62 On-line Help Operating Environment Options OUTPUT connector Output Screen Output Source Impedance Parameter Overprogramming

Parameter

step size Parameters

levels

timing Path PLL

reference source PLL Reference

84,

Power Cable Power Consumption Power Cord Power Requirements Power Source Product Features Pulse Capabilities Pulse Delay Parameter Pulse Period

parameter source

Pulse Signal

command list

example Pulse Trailing Edge Parameter Pulse Width Parameter Pulses Mode

continuous

gated

triggered

Rack Mounting 78 Rear Panel Recalling Settings

internal memory

memory card Remote

control

programming

unlock Resolution Rotary Knob

Safety

symbols SCPI

Selftest Service Documentation Shift Key Signal Generation Capabilities Standard Deliverables Standby Switch Startable Oscillator Storing Settings

internal memory

memory card STROBE OUT connector

77,

25,

Index

Switch, standby 80

Threshold 65 Timing Parameters Timing Variations

dropout free

glitch free TRIGGER OUT connector TRIGGER OUT levels Triggering

Trigger-Level Screen

Unlock Front Panel 26 Use Models

Ventilation Requirements 83 VFO Voltage limits Voltage/Current Mode Parameter

Warnings 26, 72

manual

sources

triggered burst mode

triggered pulses mode

16,

Index

Front Panel Controls

DATA ENTRY CURSOR/DIGIT MODIFY

MAN

RECALL PERIOD DELAY WIDTH

STORE

AUTOSET

HELP

SHIFT

LOCAL

LEAD TRAIL HIGH LOW

1 2 3

ON | OFF

O . +/-

8 9

5 6

DATA ENTRY /

QUICK ACCESS

Keys

Special

FUNCTION

Keys

nano

micro Mega

milli kilo

ENTER

ENTER &

UNIT Keys

CURSOR

Keys

KNOB

Edition E0300

Printed in Germany

81101-91020

MANUAL CHANGES November, 00

Manual for Model Number 81101A Manual printed on März 2000

E0300

Manual Part Number 81101-91020

Make all ERRATA corrections.

Check the following table for your instrument serial prefix/serial number/EDC and make the listed changes to your manual

New Item

Serial Prefix or Manual Serial Number Changes

ERRATA

DE38900598

7 November, 2000 Page 1 of 2

MODEL 81101A

____________________________________________________________________

ERRATA

Page 80, Power consumption: 170VA max. Page 81, Replaceable fuse : T 3.15A 2110-0596

__________________________________________________________________________________

07.11.00 Page 2 of 2

Agilent Technologies 81101A User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Notice

Safety Summary

About this Book

The Front Panel

Switching On the Instrument

The Basic Screens

Adjusting Parameters

Switching the Output On and Off

Using the Special Function Keys

Help is Available

The Rear Panel

2Getting Started

Setting Up a Clock Signal

Setting Up a Pulse Signal

Setting Up a Burst Signal

The Mode/Trigger Screen

Overview

Continuous Pulses Mode

Continuous Burst Mode

Triggered Pulses Mode

Triggered Burst Mode

Gated Pulses Mode

Gated Burst Mode

External Width Mode

The Output Screen

Timing Parameters

Level Parameters

The Limits Screen

The Trigger-Level Screen

Threshold and Impedance Parameters

Trigger and Strobe Level Parameters

The Memory Card Screen

The Configuration Screen

Warnings and Errors

AInstallation & Maintenance

Initial Inspection

Standard Deliverables

Options and Accessories:

Power Requirements

Power Cable

Ventilation Requirements

Thermal Protection

Battery

Battery Replacement

Operating Environment

Cleaning Recommendation

Acoustic Noise Emission