Agilent 33120A User's Guide

User’s Guide

Part Number 33120-90020
August 1994

For Safety information and Warranties, see the page behind
the Index.

© Copyright Hewlett-Packard Company 1994

All Rights Reserved.

HP 33120A / Option 001
Phase-Lock Assembly

Contents

Chapter 1 Quick Start

The Rear Panel at a Glance 3
The Front-Panel Menu at a Glance 4
To phase lock to an external clock signal 5
To phase lock multiple function generators 7
To set a zero phase reference 9
To phase lock using the triggered burst mode 10
To generate a phase unlock error 14

Chapter 2 Remote Interface Operation

SCPI Command Summary 17
Phase-Lock Commands 18
Simplified Programming Overview 20
The SCPI Status Registers 23
Status Reporting Commands 26
Phase-Lock Error Messages 27

Contents

Chapter 3 Specifications 29

Chapter 4 Replaceable Parts and Schematics

To Order Replaceable Parts 32
Backdating and Parts Changes 32
Replaceable Parts Lists 33

Manufacturer’s List 35
Component Locator Diagram 36
Schematic Diagram 37

Index 39

1

1

Quick Start

Quick Start

This manual contains supplemental information for the HP 33120A
Phase-Lock assembly. Refer to the HP 33120A User’s Guide and
Service Guide for complete details on using the function generator.

The Phase-Lock assembly (Option 001) adds the following capabilities to
the HP 33120A Function Generator / Arbitrary Waveform Generator:

• External clock input and output connectors on the rear panel.

These connectors allow synchronization between multiple HP 33120As
or to an external 10 MHz clock signal.

• Phase offset control from the front panel or over the remote interface.

• Simultaneous hardware triggering of multiple HP 33120As.

Option 001 allows the HP 33120A to generate a trigger pulse from
the Ext Trig terminal which can be routed to other instruments in
a system.

• 2 ppm timebase—10 times the frequency stability of the standard

HP 33120A.

If you have questions relating to the operation of the function generator,

1-800-452-4844 in the United States, or contact your nearest

call
Hewlett-Packard Sales Office.

2

Chapter 1 Quick Start

The Rear Panel at a Glance

The Rear Panel at a Glance

The Phase-Lock assembly adds the Ref Out and Ext Ref In terminals
to allow synchronization between multiple HP 33120As or to an
external 10 MHz clock signal.

1

1 Internal 10 MHz reference output terminal
2 External 10 MHz reference input terminal
3 Chassis ground
4 Power-line fuse-holder assembly
5 Power-line voltage setting

6 AM modulation input terminal
7 External Trigger / FSK / Burst modulation

input terminal

8 HP-IB (IEEE-488) interface connector
9 RS-232 interface connector

3

Chapter 1 Quick Start

The Front-Panel Menu at a Glance

The Front-Panel Menu at a Glance

The Phase-Lock assembly adds the Phase Menu to the front-panel menu.

The menu is organized in a top-down tree structure with three levels.

G: PHASE MENU

1: ADJUST  2: SET ZERO  3: TRIG OUT  4: UNLOCK ERR

1: ADJUST
2: SET ZERO
3: TRIG OUT
4: UNLOCK ERR

Sets the phase offset of the output waveform to a value in degrees.
Nulls the phase offset to a zero reference for relative adjustments.
Enables or disables an external trigger from the
Enables or disables error generation when phase-lock is lost.

4

Ext Trig

terminal.

Chapter 1 Quick Start

To phase lock to an external clock signal

To phase lock to an external clock signal

The rear-panel Ext Ref In terminal allows you to synchronize one or
more function generators with an external 10 MHz signal. The following
steps show you how to configure a single instrument for synchronization
with an external signal.

1

Freq

1 Select the function and set the output frequency to 10 MHz.

You must select either sine or square wave since the other output
waveforms cannot be used up to 10 MHz.

10.000,000 MHz

To adjust the phase offset, you will use the front-panel menu as described
on the following page.

5

Chapter 1 Quick Start

To phase lock to an external clock signal

Shift
Menu On/Off

<

∨

∨

2 Turn on the menu.

A: MOD MENU

3 Move across to the

PHASE MENU choice on this level.

G:PHASE MENU

4 Move down a level to the

ADJUST command.

1: ADJUST

5 Move down a level and set the phase offset.

You can set the offset to any value between -360 degrees and +360 degrees.

The displayed phase is output “real time” unless you have selected the
arbitrary waveform function.

∧000.000 DEG

Enter

6 Turn off the menu.

The function generator beeps and displays a message. You are then
exited from the menu.

At this point, the function generator is phase-locked to the external clock
signal with the specified phase relationship. The two signals will
remain locked unless you change the function or output frequency.

6

Chapter 1 Quick Start

To phase lock multiple function generators

To phase lock multiple function generators

The rear-panel Ref Out and Ext Ref In terminals allow you to
synchronize multiple function generators. The diagram below shows

how to make connections for the “real-time” phase-lock mode. In the
real-time mode, the phase offset relationship is random at first. You can
adjust the phase offset “real time” from the front panel. The following
steps show you how to synchronize two function generators at 10 kHz.

1

Freq

1 Set both instruments to the same output frequency.

You can select sine, square, ramp, or triangle waveforms for phase-lock
operation. You cannot perform real-time phase adjustments on arbitrary
waveforms.

10.000,000 KHz

To adjust the phase offset, you will use the front-panel menu as described
on the following page.

7

Chapter 1 Quick Start

To phase lock multiple function generators

Shift
Menu On/Off

<

∨

∨

2 Turn on the menu.

A: MOD MENU

3 Move across to the

PHASE MENU choice on this level.

G:PHASE MENU

4 Move down a level to the

ADJUST command.

1: ADJUST

5 Move down a level and set the phase offset.

You can set the offset to any value between -360 degrees and +360 degrees.

The displayed phase is output “real time” unless you have selected the
arbitrary waveform function.

∧000.000 DEG

Enter

6 Turn off the menu.

The function generator beeps and displays a message. You are then
exited from the menu.

At this point, the two function generators are phase-locked with the
specified phase relationship. The two signals will remain locked unless
you change the function or output frequency.

8

Chapter 1 Quick Start

To set a zero phase reference

To set a zero phase reference

After selecting the desired phase relationship as described on the
previous pages, you can set a zero-phase point. The function generator
then assumes that its present phase is zero and you can adjust the

phase relative to this new “zero”.

1

Shift
Menu On/Off

<

∨ >

∨

1 Turn on the menu.

A: MOD MENU

2 Move across to the

PHASE MENU choice on this level.

G:PHASE MENU

3 Move down a level and then across to the

SET ZERO command.

2: SET ZERO

4 Move down a level to set the zero phase reference.

The displayed message indicates that the phase reference will be set
to zero degrees (you must exit the menu to select the displayed value).

PHASE = 0

Enter

5 Save the phase reference and turn off the menu.

The function generator beeps and displays a message to show that the
change is now in effect. You are then exited from the menu.

9

Chapter 1 Quick Start

To phase lock using the triggered burst mode

To phase lock using the triggered burst mode

The rear-panel Ref Out and Ext Ref In terminals allow you to
synchronize multiple function generators. The diagram below shows

how to make connections for the “triggered burst” phase-lock mode.
In the triggered burst mode, you can synchronize phase-lock signals
using an external trigger from the rear-panel Ext Trig terminal.
The following steps show you how to synchronize two function
generators at 10 kHz in the triggered burst mode.

Freq

1 Set both instruments to the same output frequency.

You can select sine, square, ramp, or triangle waveforms for phase-lock
operation. You cannot perform real-time phase adjustments on arbitrary
waveforms.

10.000,000 KHz

10

Shift

Burst

Chapter 1 Quick Start

To phase lock using the triggered burst mode

1

2 Enable the burst mode on both instruments.

Shift
<

Recall Menu

∨

Enter

Notice that the

Burst annunciator turns on.

3 Use the menu to set the burst count on both instruments.

After you enable the burst mode, the “recall menu” key will
automatically take you to the

BURST CNT command in the MOD MENU.

4: BURST CNT

4 Move down to the parameter level and set the count to “

Press the right or left arrow keys until the “
Then, press the down arrow key to display “

CYC” units are flashing.
INFINITE”.

INFINITE”.

INFINITE

5 Save the change and turn off the menu.

The function generator beeps and displays a message to show that the
change is now in effect. You are then exited from the menu.

ENTERED

Next, you will set up the starting phase of the burst as shown on
the next page.

11

Chapter 1 Quick Start

To phase lock using the triggered burst mode

Shift
Menu On/Off

∨

Enter

6Go to the BURST PHAS command in the MOD MENU.

6:BURST PHAS

7 Move down a level and set the burst phase.

You can set the starting phase of the burst to any value between

-360 degrees and +360 degrees. With the

BURST PHAS command,

the phase adjustment is not “real time”; you must exit the menu

to output the specified starting phase.

∧000.000 DEG

8 Save the change and turn off the menu.

The function generator beeps and displays a message to show that the
change is now in effect. You are then exited from the menu.

ENTERED

Shift
Menu On/Off

∨

Next, you will configure one of the function generators to source an
external trigger from its rear-panel Ext Trig terminal.

9 On one instrument, go to the

MENU

.

TRIG OUT command in the PHASE

3: TRIG OUT

10 Move down a level and enable the external trigger.

ENABLE

12

Enter

Chapter 1 Quick Start

To phase lock using the triggered burst mode

1

11 Save the change and turn off the menu.

The external trigger setting is stored in volatile memory; the external
trigger state is disabled when power has been off or after a remote­interface reset.

Single

Single

ENTERED

12 Enable both instruments for phase-lock operation.

Press the Single trigger key on both function generators to enable
phase-lock operation. Next, change the output function both function
generators (e.g., change from square wave to sine wave and then back to
square wave). The

Trig annunciator should be on to indicate that each

function generator is in the single trigger mode.

13 Issue a single trigger to initiate the triggered burst.

Press the Single trigger key on the function generator with

TRIG OUT

enabled. The function generator triggers itself and also outputs a trigger
pulse from its rear-panel Ext Trig terminal.

At this point, the two function generators are phase-locked with the
specified phase relationship. The two signals will remain locked unless
you change the function or output frequency.

13

Chapter 1 Quick Start

To generate a phase unlock error

To generate a phase unlock error

You can configure the function generator to generate an error condition
whenever phase lock is lost. The following steps show you how to enable
an unlock error.

Shift
Menu On/Off

<

∨

<

∨

Enter

1 Turn on the menu.

A: MOD MENU

2 Move across to the

PHASE MENU choice on this level.

G:PHASE MENU

3 Move down a level and then across to the

UNLOCK ERR command.

4:UNLOCK ERR

4 Move down a level and enable the unlock error.

ENABLE

5 Save the change and turn off the menu.

The unlock error setting is stored in non-volatile memory, and does not
change when power has been off or after a remote-interface reset.

See also “The

SCPI Status Registers” on page 23.

14

2

2

Remote Interface
Operation

Remote Interface Operation

This chapter gives an overview of the Phase-Lock commands available
to program the function generator over the remote interface. Refer to
chapter 4 in the HP 33120A User’s Guide for complete details on
configuring the function generator for remote interface operation.

• SCPI Command Summary, on page 17

• Phase-Lock Commands, on page 18

• Simplified Programming Overview, on page 20

• The SCPI Status Registers, on page 23

• Status Reporting Commands, on page 26

• Phase-Lock Error Messages, on page 27

16

Chapter 2 Remote Interface Operation

SCPI Command Summary

SCPI Command Summary

This section summarizes the SCPI (Standard Commands for
Programmable Instruments) commands available to program the
Phase-Lock assembly over the remote interface. If you are a first-time
user of the
Language,” starting on page 211 in the HP 33120A User’s Guide.

Throughout this manual, the following conventions are used for

SCPI command syntax.

• Square brackets ( [ ] ) indicate optional keywords or parameters.

• Braces ( { } ) enclose parameters within a command string.

• Triangle brackets ( < > ) indicate that you must substitute a value

for the enclosed parameter.

• A vertical bar (

SCPI language, refer to “An Introduction to the SCPI

|

) separates multiple parameter choices.

2

Phase-Lock Commands (Option 001)

(see page 18 and 19 for more information)

PHASe:ADJust {<radians>|MINimum|MAXimum}
PHASe:ADJust?

PHASe:REFerence

PHASe:UNLock:ERRor:STATe {OFF|ON}
PHASe:UNLock:ERRor:STATe?

OUTPut:TRIGger:IMMediate

OUTPut:TRIGger:STATe {OFF|ON}
OUTPut:TRIGger:STATe?

*OPT?

17

Chapter 2 Remote Interface Operation

Phase-Lock Commands

Phase-Lock Commands

This section describes the SCPI (Standard Commands for Programmable
Instruments) commands available to program the Phase-Lock assembly.
Refer to chapter 4 in the
complete set of commands for the function generator.

HP 33120A User’s Guide for details on the

PHASe:ADJust {<

radians>|MINimum|MAXimum}

Adjust the phase offset of the output waveform in radians. Select from

-2π radians to +2π radians. The default is 0 radians.

MAX = +2π radians. [ Stored in volatile memory ]

• To specify phase in degrees instead of radians, specify “

MIN = -2π radians.

DEG” following

the phase value as shown below:

"PHAS:ADJ -90 DEG"

• For sine, square, triangle, and ramp waveforms, 0 radians is the point

at which the waveform crosses zero volts (or the dc offset value), in a
positive-going direction. For arbitrary waveforms, 0 radians is the
first point downloaded to memory.

• This phase adjustment for phase-lock is independent of the burst

phase as set by the BM:PHAS command. See “Burst Modulation” in the

HP 33120A User’s Guide for more information on burst phase.

PHASe:ADJust?

Query the phase offset setting. Returns a value in radians.

PHASe:REFerence

Immediately set the zero-phase reference point. This command does not
change the phase offset as set with the PHAS:ADJ command, it only
changes the phase reference. This command has no query form.

18

Chapter 2 Remote Interface Operation

Phase-Lock Commands

PHASe:UNLock:ERRor:STATe {OFF|ON}

Disable or enable the function generator from generating an error
if phase-lock is ever lost. If phase-lock is lost and the error is enabled,
580, “Phase-locked loop is unlocked” is generated. The default is
[ Stored in non-volatile memory ]

PHASe:UNLock:ERRor:STATe?

Query the unlock error state. Returns “0” (

OUTPut:TRIGger:IMMediate

Output an immediate
terminal regardless of the present setting of the OUTP:TRIG:STAT
command. You can use this command to issue an immediate external
trigger for synchronizing phase-lock signals using the rear-panel
Ext Trig terminal.

OUTPut:TRIGger:STATe {OFF|ON}

Disable or enable the function generator from sourcing an external
trigger from its rear-panel Ext Trig terminal. The default is
[ Stored in volatile memory ]

TTL “high” pulse from the rear-panel Ext Trig

OFF) or “1” (ON).

OFF.

OFF.

2

OUTPut:TRIGger:STATe?

Query the external trigger state. Returns “0” (

*OPT?

Query the presence of the Phase-Lock option. Returns “1:
option is present or “0” if no option is present.

OFF) or “1” (ON).

PLL” if the

19

Chapter 2 Remote Interface Operation

Simplified Programming Overview

Simplified Programming Overview

This section gives an overview of the basic techniques used to program
the Phase-Lock assembly over the remote interface. This section is only
an overview and does not give all of the details you will need to write

your own application programs. Refer to chapter 6, “Application
Programs,” in the HP 33120A User’s Guide for more details and

examples. Also refer to the programming reference manual that came
with your computer for details on outputting command strings and
entering data.

To Phase Lock to an External Clock Signal

The rear-panel Ext Ref In terminal allows you to synchronize one or
more function generators with an external 10 MHz signal. The following
statements show how to configure a single instrument for
synchronization with an external signal:

"APPL:SIN 10E+6, 5.0" Select sine function at 10 MHz

"PHAS:ADJ -90 DEG" Set phase offset to -90 degrees

"PHAS:REF" Set phase reference to zero

20

Chapter 2 Remote Interface Operation

Simplified Programming Overview

To Phase Lock Multiple Function Generators

The rear-panel Ref Out and Ext Ref In terminals allow you to
synchronize multiple function generators. The following statements
show you how to synchronize two function generators at 10 kHz
(send the commands to both function generators):

"APPL:SIN 10E+3, 5.0" Select sine function at 10 kHz

"PHAS:ADJ -90 DEG" Set phase offset to -90 degrees

"PHAS:REF" Set phase reference to zero

2

21

Chapter 2 Remote Interface Operation

Simplified Programming Overview

To Phase Lock Using the Triggered Burst Mode

In the triggered burst mode, you can synchronize phase-lock signals
using an external trigger from the rear-panel Ext Trig terminal.
The following statements show you how to synchronize two function
generators in the triggered burst mode (send the commands to both
function generators):

"APPL:SIN 10E+3, 5.0" Set both to the same frequency

"BM:NCYC INF" Set burst count to “

"BM:STAT ON" Enable the burst mode

"TRIG:SOUR EXT" Set trigger source to external

Send the following command statement to only one function generator:

"OUTP:TRIG:IMM" Issue external trigger to all instruments

INFINITY”

22

Chapter 2 Remote Interface Operation

The SCPI Status Registers

The SCPI Status Registers

The function generator uses the Status Byte, the Standard Event,
and the Questionable Data register groups (phase-lock assembly only)
to record various instrument conditions. This section discusses only the
Questionable Data register group; refer to chapter 4 in the HP 33120A
User’s Guide for a complete discussion of the status registers. A diagram

SCPI status system is shown on the next page.

of the

An example program is included in chapter 6, “Application Programs,”
of the HP 33120A User’s Guide which shows the use of the status registers.
You may find it useful to refer to the program after reading the following
section in this chapter.

2

23

Chapter 2 Remote Interface Operation

The SCPI Status Registers

SCPI Status System

24

Chapter 2 Remote Interface Operation

The SCPI Status Registers

The Questionable Data Register

The Questionable Data register reports the present lock state on bit 6.
The state of this bit can be reported in the Questionable Data
summary bit through the enable register. To set the enable register
mask, you must write a decimal value to the register using the
STATus:QUEStionable:ENABle command.

Bit Definitions – Questionable Data Register

2

Bit

0 Not Used
1 Not Used
2 Not Used
3 Not Used
4 Not Used
5 Not Used
6 Phase Unlocked
7 Not Used
8 Not Used
9 Not Used
10 Not Used
11 Not Used
12 Not Used
13 Not Used
14 Not Used
15 Not Used

Decimal
Value

—
—
—
—
—
—

64
—

—
—
—
—
—
—
—
—

Definition

Always set to 0.
Always set to 0.
Always set to 0.
Always set to 0.
Always set to 0.
Always set to 0.
The function generator has lost phase lock.
Always set to 0.
Always set to 0.
Always set to 0.
Always set to 0.
Always set to 0.
Always set to 0.
Always set to 0.
Always set to 0.
Always set to 0.

The Questionable Data event register is cleared when:

• You execute a *CLS (clear status) command.

• You query the event register using STATus:QUEStionable:EVENt?.

The Questionable Data enable register is cleared when:

• You turn on the power (*PSC does not apply).

• You execute the STATus:PRESet command.

• You execute the STATus:QUEStionable:ENABle 0 command.

25

Chapter 2 Remote Interface Operation

Status Reporting Commands

Status Reporting Commands

STATus:QUEStionable:CONDition?

Query the Questionable Data condition register and return the real-time

value of all bits set. Returns “0” if phase is locked or “64” if phase is
unlocked.

STATus:QUEStionable:ENABle <

Enable bits in the Questionable Data enable register. The selected bits
are then reported to the Status Byte.

STATus:QUEStionable:ENABle?

Query the Questionable Data enable register. The function generator
returns a decimal value which corresponds to the binary-weighted sum
of all bits set in the enable register.

STATus:QUEStionable:EVENt?

Query the Questionable Data event register. The function generator
returns a decimal value which corresponds to the binary-weighted sum
of all bits set in the event register.

STATus:PRESet

Clear all bits in the Questionable Data enable register.

enable value>

26

Chapter 2 Remote Interface Operation

Phase-Lock Error Messages

Phase-Lock Error Messages

This section lists the two error messages that can be generated if the
Phase-Lock option is installed. Refer to chapter 5 in the HP 33120A
User’s Guide for a complete listing of error messages.

-221 Settings conflict; cannot adjust phase in present configuration

Option 001 Phase-Lock Only. The phase cannot be adjusted real-time if
an arbitrary waveform is selected, a modulation mode (other that burst)
is enabled, or if burst is enabled with a burst count other than infinity.

580 Phase-locked loop is unlocked

Option 001 Phase-Lock Only. The function generator has detected an

“unlock” condition. You must execute the PHAS:UNL:ERR:S TAT ON
command to enable this error.

2

27

3

3

Specifications

Chapter 3 Specifications

HP 33120A / Option 001 Phase-Lock Assembly

Timebase Accuracy

Setability: < 0.01 ppm
Stability: ±2 ppm 0°C - 50°C
Aging: < 1 ppm in first 30 days

10-7 / month

(after first 30 days operation)

(continuous operation)

Rear-Panel Input (

Lock Range: 10 MHz ±50 Hz
Level: -10 dBm to +15 dBm, +25 dBm

Impedance: 50Ω ±2%, 42 Vpk isolation from earth
Locktime: < 2 seconds

Rear-Panel Output (

Frequency: 10 MHz
Level: > 1 Vpp square wave into 50Ω

Ext Ref In

or 10 Vpp absolute maximum input

Ref Out

terminal)

terminal)

Phase Offset

Range: +360 to -360 degrees
Resolution: 0.001°
Accuracy: 25 ns

Trigger

Level: 5V zero-going pulse
Pulse Width: > 2 µs
Fanout: Four (4) HP 33120As

30

4

4

Replaceable Parts
and Schematics

Replaceable Parts and Schematics

This chapter contains information to help you order replacement parts
for your HP 33120A Function Generator/Option 001. Parts are listed in
alphanumeric order according to their schematic reference designators.
The parts lists include a brief description of the part with applicable
HP part number and manufacturer part number.

See the HP 33120A Service Guide for complete details on the servicing
and warranty policies of the HP 33120A.

To Order Replaceable Parts

You can order replaceable parts from Hewlett-Packard using the
HP part number or directly from the manufacturer using the

manufacturer’s part number. To order replaceable parts from HP,
do the following:

1. Contact your nearest HP Sales Office or HP Service Center.

2. Identify the parts by the HP part number shown in the replaceable
parts list.

3. Provide the instrument model number and serial number.

Backdating and Parts Changes

Always refer to chapter 8, “Backdating” in the HP 33120A Service Guide
before attempting repair or before ordering replacement parts.
Parts changes are documented in the backdating chapter.

32

Chapter 4 Replaceable Parts and Schematics

33120-66503 – Phase-Lock PC Assembly

33120-66503 – Phase-Lock PC Assembly

Reference HP Part Mfr. Mfr. Part
Designator Number Qty Part Description Code Number

C101 0160-5945 11 CAP-FXD 0.01 uF 50 V 04222 08055C103KAT A
C102 0160-5955 1 CAP-FXD 68 pF 50 V 04222 08051A680JATRA
C103 0160-5945 CAP-FXD 0.01 uF 50 V 04222 08055C103KAT A
C104-C109 0160-6497 21 CAP-FXD 0.1 uF 25 V 04222 12065C104KAT A
C110 0160-5967 1 CAP-FXD 100 pF 5% 04222 08051A101JAT A
C111-C120 0160-6497 CAP-FXD 0.1 uF 25 V 04222 12065C104KAT A
C121 0180-3975 1 CAP-FXD 2.2 uF 20 V TA 04222 TAJB225M020
C122 0160-5945 CAP-FXD 0.01uF 50 V 04222 08055C103KAT A
C123-C127 0160-6497 CAP-FXD 0.1 uF 25 V 04222 12065C104KAT A
C128-C135 0160-5945 CAP-FXD 0.01uF 50 V 04222 08055C103KAT A

CR101 1906-0291 1 DIODE- 70V 100MA 04713 MBAV9902037
CR102 1902-1565 2 DIODE-ZNR 4.7V 5% TO-236 (SOT-23) 25403 BZX84-C4V7
CR103 1990-1523 2 LED-LAMP LUM-INT=2MCD IF=30MA-MAX 28480 HSMS-T 400
CR104 1906-0291 1 DIODE- 70V 100MA 04713 MBAV99
CR105 1990-1521 1 LED-LAMP LUM-INT=2MCD IF=20MA-MAX 28480 HSMY-T 400
CR106 1902-1565 DIODE-ZNR 4.7V 5% TO-236 (SOT-23) 25403 BZX84-C4V7
CR107 1990-1523 LED-LAMP LUM-INT=2MCD IF=30MA-MAX 28480 HSMS-T 400

4

FB101 9170-1506 1 CORE-SHIELDING BEAD 06352 HF50ACB201209
HDW1-HDW2 2190-0699 2 WASHER-LK INTL T 1/2 IN .5-IN-ID 00779 1-329632-2

HDW3-HDW4 2940-0256 2 NUT-HEX-DBL-CHAM 1/2-28-THD .095-IN-THK 00779 1-329631-2
J1-J2 1250-1884 2 CONNECTOR-RF BNC RCPT PC-W-STDFS 00779 227161-6
MNL1 33120-90020 1 ENGLISH MANUAL (USER’S AND SERVICE) 28480 33120-90020

P2 1250-0257 1 CONNECTOR-RF SMB PLUG PC-W-STDFS 00779 413990-3
Q101 1853-0724 1 TRANSISTOR PNP SI TO-261AA FT=200MHz 04713 PZT2907A
R101-R102 0699-2103 7 RESISTOR 49.9 +-1% .125W TKF TC=0+-100 19701 9C12063AFK R

R103 0699-1394 2 RESISTOR 14.7K +-1% .125W TKF TC=0+-100 19701 9C12063AFKR
R104 0699-1378 1 RESISTOR 2.61K +-1% .125W TKF TC=0+-100 19701 9C12063AFKR
R105 0699-1401 1 RESISTOR 28.7K +-1% .125W TKF TC=0+-100 19701 9C12063AFKR
R106 0699-1394 RESISTOR 14.7K +-1% .125W TKF TC=0+-100 19701 9C12063AFKR
R107-R108 0699-1330 4 RESISTOR 100K +-1% .125W TKF TC=0+-100 19701 9C12063AFKR
R109 0699-1384 3 RESISTOR 4.64K +-1% .125W TKF TC=0+-100 19701 9C12063AFKR
R110 0699-1435 1 RESISTOR 681 +-1% .125W TKF TC=0+-100 19701 9C12063AFKR
R111 0699-1330 RESISTOR 100K +-1% .125W TKF TC=0+-100 19701 9C12063AFKR
R112 0699-1544 1 RESISTOR 78.7K +-1% .125W TKF TC=0+-100 19701 9C12063AFKR

33

Chapter 4 Replaceable Parts and Schematics

33120-66503 – Phase-Lock PC Assembly

Reference HP Part Mfr. Mfr. Part
Designator Number Qty Part Description Code Number

R113 0699-1392 2 RESISTOR 11K +-1% .125W TKF TC=0+-100 19701 9C12063AFKR
R114 0699-1372 1 RESISTOR 1.47K +-1% .125W TKF TC=0+-100 19701 9C12063AFKR
R115 0699-1384 RESISTOR 4.64K +-1% .125W TKF TC=0+-100 19701 9C12063AFKR
R116 0699-1414 1 RESIST O R 9 0 .9K 1 % 1206 .125W TC=100 200V 19701 9C12063AFKR
R117 0699-2103 RESISTOR 49.9 +-1% .125W TKF TC=0+-100 19701 9C12063AFKR
R118 0699-1320 1 RESISTOR 19.6K +-1% .125W TKF TC=0+-100 19701 9C12063AFKR
R119 0699-3218 2 RESISTOR 33.2K +-1% .125W TKF TC=0+-100 91637 CRCW1206-33R2KF
R120 0699-3287 1 RESISTOR 49.9K +-1% .125W TKF TC=0+-100 19701 9C12063A4992FK
R121 0699-1456 1 RESISTOR 562K +-1% .125W TKF TC=0+-100 19701 9C12063AFKR
R122 0699-1413 1 RESISTOR 82.5K +-1% .125W TKF TC=0+-100 19701 9C12063AFKR

R123 0699-1330 RESISTOR 100K +-1% .125W TKF TC=0+-100 19701 9C12063AFKR
R124-R126 0699-1403 3 RESISTOR 31.6K +-1% .125W TKF TC=0+-100 91637 CRCW1206F
R127 0699-1392 RESISTOR 11K +-1% .125W TKF TC=0+-100 19701 9C12063AFKR
R128 0699-3218 RESISTOR 33.2K +-1% .125W TKF TC=0+-100 91637 CRCW1206-33R2KF
R129 0699-1384 RESISTOR 4.64K +-1% .125W TKF TC=0+-100 19701 9C12063AFKR
R130 0699-1423 1 RESISTOR 215 +-1% .125W TKF TC=0+-100 80031 9C12063AFKR
R131 0699-1344 1 RESISTOR 10 +-1% .125W TKF TC=0+-100 19701 9C12063AFKR
R133-R135 0699-2103 RESISTOR 49.9 +-1% .125W TKF TC=0+-100 19701 9C12063AFKR
R136-R138 0699-1415 4 RESISTOR 100 +-1% .125W TKF TC=0+-100 80031 FKR04935
R139 0699-2103 RESISTOR 49.9 +-1% .125W TKF TC=0+-100 19701 9C12063AFKR
R140 0699-1415 RESISTOR 100 +-1% .125W TKF TC=0+-100 80031 FKR04935

T101 9100-4902 1 TRANSFORMR-RF FREQ. RNGE: 15-400 MHz 15542 T1-1-KK81-TR
U101 1826-2387 1 IC COMPARATOR HS 14 PIN PLSTC-SOIC 27014 LM361M

U102 1821-0055 1 IC SCHMITT-TRG CMOS/ACT NAND 04713 MC74ACT132D
U103 1820-4687 1 IC GATE TTL/F NOR QUAD 2-INP 27014 74F02SC
U104 1820-8825 1 IC GATE CMOS/ACT EXCL-OR QUAD 04713 MC74ACT86D
U105 1820-5040 1 IC FF TTL/F D-TYPE POS-EDGE-TRIG 27014 74F74SC
U106 1820-5788 1 IC SW CMOS/74HC ANALOG QUAD 04713 MC74HC4066D
U107 1826-1622 1 IC OP AMP LOW-BIAS-H-IMPD QUAD 14 PIN 04713 TL074CD
U108 1826-2202 1 IC V RGLTR-FXD-POS 11.5/12.5V 8-P-SOIC 04713 MC78L12ACD
U109 1826-2201 1 IC V RGLTR-FXD-NEG -11.5/-12.5V 8-P-SOIC 04713 MC79L12ACD
U110 1813-1030 1 CLK-OSC-XTAL PRC 40.000-MHZ 0.0001% 09793 HTV1611
U111 1826-1838 1 IC V RGLTR-V-REF-FXD 4.95/5.05V 8-P-SOIC 10858 LT1021DCS8-5

34

Chapter 4 Replaceable Parts and Schematics

Manufacturer’s List

Manufacturer’s List

Mfr Code Manufacturer’s Name Manufacturer’s Address Zip Code

00779 Amp Inc Harrisburg, PA, U.S.A. 17111
04222 AVX Corp Great Neck, NY, U.S.A. 11021
04713 Motorola Inc Roselle, IL, U.S.A. 60195
06352 TDK Corporation of America Skokie, IL, U.S.A. 60076
09793 Connor-Winfield Corp West Chicago, IL, U.S.A. 60606
10858 Linear Technology Corporation Milpitas, CA, U.S.A. 95035
15542 Mini-Circuits Lab Brooklyn, NY, U.S.A. 11235
19701 North America Philips Corp New York, NY, U.S.A. 10017
25403 NV Philips Elcoma Eindhoven, Netherlands 02876
27014 National Semiconductor Corp Santa Clara, CA, U.S.A. 95052
28480 HP Div 01 San Jose Components San Jose, CA, U.S.A. 95131
80031 Mepco Electra Corp Morristown, NJ, U.S.A. 07960
91637 Vishay Electronic Components Columbus, NE, U.S.A. 68601

4

35

Chapter 4 Replaceable Parts and Schematics

Component Locator Diagram

Component Locator Diagram

36

Index

If you have questions relating to the operation of the function generator,
call

1-800-452-4844 in the United States, or contact your nearest

Hewlett-Packard Sales Office.

*OPT? command, 19

A

accuracy
phase offset, 30
timebase, 30
adjust phase, 5, 7, 20
aging (timebase accuracy), 30

B

bits, questionable data register, 25
burst count, 11, 22
burst mode (phase lock), 10, 22

C

command syntax (phase lock)
command summary, 17
conventions, 17
phase-lock commands, 18 - 19
radians vs degrees, 18
status reporting commands, 26
component locator diagram, 36
connections (phase lock), 5, 7, 10
cycles (burst), 11, 22

D

degrees (phase offset)
front panel, 6, 8
remote interface, 18

E

error messages, 27
error (phase unlock)
enabling/disabling, 14, 19
status register reporting, 23
Ext Ref In terminal
phase-lock connections, 5, 7, 10
rear-panel location, 3
specifications, 30
Ext Trig terminal
phase-lock connections, 10
rear-panel location, 3
specifications, 30
trigger pulse output, 13, 19
external clock (triggered mode), 5, 20
external trigger, 13, 19

F

fanout (triggering), 30
frequency stability, 30
front-panel menu reference, 4

I

IEEE-488
command reference, 18 - 19
command summary, 17
programming overview, 20 - 22
infinite burst count, 11, 22

M

menu (front-panel) reference, 4
messages (phase-lock errors), 27
modulation (burst), 10, 22
multiple instruments, phase lock, 7

N

number of cycles (burst), 11, 22

O

option query, 19

OUTP:TRIG:IMM command, 19
OUTP:TRIG:STAT command, 19

overview
phase-lock option, 2
programming, 20 - 22

P

parts lists, 33 - 34

PHAS:ADJ command, 18
PHAS:REF command, 18
PHAS:UNL:ERR:STAT command, 19

phase lock
external clock (triggered mode), 5, 20
multiple instruments, 7, 21
option query, 19
overview, 2
phase adjust, 5, 7, 20
SCPI command syntax, 18 - 19
SCPI command summary, 17
specifications, 30
triggered burst mode, 10, 22
zero reference, 9, 18

Phase Menu, 4
phase offset, 6, 8, 20
accuracy, 30
range, 30
resolution, 30
phase reference, 9, 18
phase unlock error
enabling/disabling, 14, 19
status register reporting, 23
programming overview, 20 - 22
pulse width, 30

Q

questionable data register
bit definitions, 25
clearing bits, 25

R

radians (phase offset)
front panel, 6, 8
remote interface, 18
rear panel
connections (phase lock), 5, 7, 10
Ext Ref In terminal, 3
overview, 3
Ref Out terminal, 3
reference, zero phase, 9, 18
Ref Out terminal
phase-lock connections, 5, 7, 10
rear-panel location, 3
specifications, 30
register diagram (status), 24
remote interface
command reference, 18 - 19
command summary, 17
programming overview, 20 - 22
replaceable parts lists, 33 - 34

IndexIndex

39

Index

S

safety information, inside front cover
schematic diagram, 37
SCPI language
command format, 17
command summary, 17
programming overview, 20 - 22
status registers, 23 - 25
syntax conventions, 17
single trigger, 13
specifications, 30

STAT:PRES command, 26
STAT:QUES:COND? command, 26
STAT:QUES:ENAB command, 26
STAT:QUES:EVEN? command, 26

status registers (questionable data)
bit definitions, 25
clearing bits, 25
commands, 26
register diagram, 24
syntax conventions, 17

Index

T

technical specifications, 30
timebase accuracy, 30
triggered burst mode (phase lock), 10, 22
triggering
fanout, 30
from Ext Trig terminal, 13, 22
pulse width, 30
single trigger, 13
troubleshooting (error messages), 27

U

unlock error
enabling/disabling, 14, 19
status register reporting, 23

W

warranty information, inside front
cover

Z

zero phase reference, 9, 18

40

Copyright  1994
Hewlett-Packard Company
All Rights Reserved.

Printing History

Edition 1, August 1994

New editions are complete
revisions of the manual.
Update packages, which
are issued between editions,
may contain additional in­formation and replacement
pages which you merge into
the manual. The dates on
this page change only when
a new edition is published.

Certification

Hewlett-Packard (HP)
certifies that this product
met its published specifications
at the time of shipment.
HP further certifies that
its calibration measurements
are traceable to the United
States National Institute
of Standards and Technology
(formerly National Bureau
of Standards), to the extent
allowed by that organiza-

tion’s calibration facility,
and to the calibration
facilities of other Interna­tional Standards
Organization members.

Warranty

This HP product is war­ranted against defects in
materials and workman­ship for a period of three
years from date of shipment.
Duration and conditions of
warranty for this product
may be superceded when
the product is integrated
into (becomes a part of)
other HP products. During
the warranty period, HP
will, at its option, either
repair or replace products
which prove to be defective.

Warranty Service

For warranty service or
repair, this product must
be returned to a service
facility designated by HP.

For products returned to
HP for warranty service,
the Buyer shall prepay
shipping charges to HP
and HP 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 HP from
another country.

Limitation of Warranty

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

The design and implemen­tation of any circuit on this
product is the sole respon­sibility of the Buyer.
HP does not warrant the
Buyer’s circuitry or
malfunctions of HP
products that result from
the Buyer’s circuitry.
In addition, HP does not
warrant any damage that
occurs as a result of the
Buyer’s circuit or any defects
that result from Buyer­supplied products.

HP makes no other
warranty, expressed or im­plied, whether written or
oral with respect to this
product and specifically dis­claims any implied
warranty or
condition of merchantabil­ity, fitness for a particular
purpose or
satisfactory quality.

Exclusive Remedies

The remedies provided
herein are the Buyer’s sole
and exclusive remedies.
HP shall not be liable for
any direct, indirect, special,
incidental, or consequen­tial damages (including
lost profit), whether based
on warranty, contract, tort,
or any other legal theory.

Notice

The information contained
in this document is subject
to change without notice.

Hewlett-Packard makes no
warranty of any kind

regard to this material, i n­cluding, but not limited to,
the implied warranties of
merchantability and fitness
for a particular purpose.

with

Hewlett-Packard 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. No
part of this document may
be photocopied, reproduced,
or translated to another
language without the prior
written consent of HP.

Restricted Rights

The Software and Docu­mentation have been
developed entirely at private
expense. They are delivered
and licensed as “commercial
computer software” as
defined in DFARS 252.227­7013 (Oct 1988), DFARS

252.211-7015 (May 1991),
or DFARS 252.227-7014
(Jun 1995), as a “commercial
item” as defined in FAR

2.101(a), or as “restricted
computer software” as
defined in FAR 52.227-19
(Jun 1987) (or any equivalent
agency regulation or contract
clause), whichever is appli­cable. You have only those
rights provided for such
Software and Documenta­tion by the applicable FAR
or DFARS clause or the HP
standard software agreement
for the product involved.

Trademark Information

Windows, Windows 95,
and Windows NT are regis­tered trademarks of
Microsoft Corp.

Safety

Do not install substitute
parts or perform any
unauthorized modification
to the product. Return the
product to an HP Sales and
Service Office for service and
repair to ensure that safety
features are maintained.

Safety Symbols

Warning

Calls attention to a proce­dure, practice, or condition,
that could possibly cause
bodily injury or death.

Caution

Calls attention to a proce­dure, practice, or condition
that could possibly cause
damage to equipment or
permanent loss of data.

Earth ground symbol.

Chassis ground symbol.

Warning

Only qualified, service­trained personnel who are
aware of the hazards
involved should remove the
cover from the instrument.

Warning

For continued protection
against fire, replace the
line fuse only with a fuse
of the specified type and
rating.

Manual Part Number: 33120-90020
Microfiche Part Number: 33120-99020

Printed: August 1994 Edition 1

Printed in U.S.A.