Model 645

Arbitrary Waveform Generator

User’s manual

Printed Date: 06/2008

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Table of Contents

TABLE OF CONTENTS............................................................................................................ 2

1 GENERAL INFORMATION............................................................................................... 5

1.1 FEATURE OVERVIEW ....................................................................................................... 5 1.2 WARRANTY INFORMATION ............................................................................................. 6 1.3 PRECAUTION OF OPERATION ......................................................................................... 7 1.4 UPKEEP OF MODEL 645................................................................................................. 8 1.5 SAFETY INFORMATION.................................................................................................... 8 1.6 SYMBOLS AND TERMS .................................................................................................... 9 1.7 INSPECTION .................................................................................................................. 10 1.8 OPTIONS AND ACCESSORIES....................................................................................... 11

2 OVERVIEW ........................................................................................................................... 12

2.1 TO ADJUST THE HANDLE ............................................................................................... 12 2.2 FACTORY DEFAULT SETTINGS ..................................................................................... 15 2.3 MODEL 645 OPERATION PANELS................................................................................ 17

2.3.1 Front Panel....................................................................................................... 17

3 COMMON OPERATIONS................................................................................................. 19

3.1 GRAPH MODE ................................................................................................................ 19 3.2 NUMERICAL/ALPHABETICAL ENTRY ............................................................................. 19 3.3 TO SELECT OUTPUT FUNCTION ................................................................................... 20 3.4 TO SET OUTPUT FREQUENCY/PERIOD ........................................................................ 21 3.5 TO SET OUTPUT AMPLITUDE ....................................................................................... 23 3.6 TO SET DC OFFSET VOLTAGE..................................................................................... 25 3.7 TO SET HIGH-LEVEL AND LOW-LEVEL BOUNDS ....................................................... 26 3.8 TO SET WAVEFORM POLARITY .................................................................................... 27 3.9 TO SET OUTPUT TERMINATION ................................................................................... 28 3.10 TO ENABLE/DISABLE VOLTAGE AUTORANGING ...................................................... 28 3.11 TO CONTROL OUTPUT CONNECTOR.......................................................................... 29 3.12 TO ENABLED/DISABLE SYNC OUT SIGNAL.............................................................. 30 3.13 TO RESTORE THE FACTORY DEFAULT SETTINGS..................................................... 32

4 WAVEFORM OUTPUT OPERATIONS ....................................................................... 33

4.1 SINE WAVE ................................................................................................................... 33 4.2 SQUARE WAVE.............................................................................................................. 34

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4.3 RAMP WAVE .................................................................................................................. 35 4.4 NOISE WAVEFORM ....................................................................................................... 36 4.5 PULSE WAVEFORM........................................................................................................ 37 4.6 ARBITRARY WAVEFORM ............................................................................................... 39 4.7 AMPLITUDE MODULATION ............................................................................................ 41 4.8 FREQUENCY MODULATION ........................................................................................... 44 4.9 PHASE MODULATION .................................................................................................... 47 4.10 FSK MODULATION ..................................................................................................... 50 4.11 PWM WAVEFORM ...................................................................................................... 52 4.12 FREQUENCY SWEEP.................................................................................................... 54 4.13 BURST OPERATION .................................................................................................... 59 4.14 PATTERN OUTPUT....................................................................................................... 64

5 SYSTEM OPERATIONS ....................................................................................................... 72

5.1 TRIGGERING.................................................................................................................. 72 5.2 STORING THE INSTRUMENT STATE .............................................................................. 74 5.3 DISPLAY CONTROL ....................................................................................................... 77 5.4 BEEPER .......................................................................................................................... 78 5.5 SOUND........................................................................................................................... 78 5.6 ERROR DISPLAY ............................................................................................................ 79 5.7 CALIBRATION ................................................................................................................ 79

6 REMOTE INTERFACE OPERATIONS............................................................................ 80

6.1 REMOTE INTERFACE CONFIGURATION ........................................................................ 80 6.1.1 USB Interface ............................................................................................. 80 6.1.2 GPIB Interface ........................................................................................... 80 6.1.3 LAN Interface ............................................................................................. 81

6.2 REMOTE INTERFACE COMMANDS................................................................................. 84

7 ERROR MESSAGES ........................................................................................................... 94

7.1 COMMAND ERRORS ...................................................................................................... 95 7.2 EXECUTION ERRORS..................................................................................................... 96 7.3 DEVICE DEPENDENT ERRORS .................................................................................... 107 7.4 QUERY ERRORS .......................................................................................................... 108 7.5 INSTRUMENT ERRORS ................................................................................................ 108 7.6 SELF-TEST ERRORS ................................................................................................... 108 7.7 CALIBRATION ERRORS ............................................................................................... 109 7.8 ARBITRARY WAVEFORM ERRORS............................................................................... 110

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APPENDIX............................................................................................................................... 113

A SPECIFICATION LIST .................................................................................................... 114 B REMOTE INTERFACE REFERENCE................................................................................. 120

B.1.1 Command Format Used in This Manual...............................................120 B.1.2 Command Separators ................................................................................ 121 B.1.3 Using the MIN and MAX Parameters ....................................................122 B.1.4 Querying Parameter Settings..................................................................122 B.1.5 SCPI Command Terminators ................................................................... 123 B.1.6 IEEE-488.2 Common Commands ..........................................................123 B.1.7 SCPI Parameter Types ............................................................................... 123

B.2 Output Data Formats ................................................................................ 125 B.3 Command Reference ................................................................................. 125

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