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AFG-3000
User Manual
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GW Instek AFG-3000 User Manual

Arbitrary Function Generator
AFG-3000 Series
USER MANUAL
GW INSTEK PART NO. 82FG-30820E01
ISO-9001 CERTIFIED MANUFACTURER
October 2010 edition
The information in this manual was correct at the time of printing. However, Good Will continues to improve its products and therefore reserves the right to change the specifications, equipment, and maintenance procedures at any time without notice.
Good Will Instrument Co., Ltd. No. 7-1, Jhongsing Rd., Tucheng City, Taipei County 236, Taiwan.
TABLE OF CONTENTS
Table of Contents
SAFETY INSTRUCTIONS .................................. 6
GETTING STARTED ........................................ 11
Main Features ................................................................... 11
Panel Overview .................................................................. 13
Setting up the Function Generator .................................... 19
QUICK REFERENCE ....................................... 21
How to use the Digital Inputs ........................................... 23
How to use the Help Menu ............................................... 24
Selecting a Waveform ........................................................ 26
Modulation ........................................................................ 28
Sweep ................................................................................ 32
Burst ................................................................................. 33
ARB ................................................................................... 35
Utility Menu ...................................................................... 39
Menu Tree ......................................................................... 42
Default Settings ................................................................ 53
OPERATION ................................................... 55
Select a Waveform ............................................................. 56
MODULATION ............................................... 65
Amplitude Modulation (AM) ............................................. 67
Frequency Modulation (FM) .............................................. 75
Frequency Shift Keying (FSK) Modulation .......................... 83
Pulse Width Modulation .................................................... 90
Frequency Sweep ............................................................... 97
Burst Mode ..................................................................... 108
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AFG-3000 Series User Manual
SECONDARY SYSTEM FUNCTION SETTINGS
..................................................................... 121
Save and Recall ............................................................... 122
Selecting the Remote Interface ........................................ 125
System and Settings ........................................................ 129
ARBITRARY WAVEFORMS ............................ 137
Inserting Built-In Waveforms ........................................... 138
Display an Arbitrary Waveform ........................................ 151
Editing an Arbitrary Waveform ......................................... 158
Output an Arbitrary Waveform ......................................... 168
Saving/Loading an Arbitrary Waveform ............................ 174
REMOTE INTERFACE ................................... 182
Establishing a Remote Connection .................................. 183
Command Syntax ............................................................. 188
Command List ................................................................. 193
System Commands .......................................................... 196
Status Register Commands .............................................. 200
Interface Configuration Commands ................................. 203
Apply Commands ............................................................ 204
Output Commands .......................................................... 211
Pulse Configuration Commands ...................................... 221
Amplitude Modulation (AM) Commands ......................... 223
AM Overview ................................................................... 223
Frequency Modulation (FM) Commands .......................... 228
FM Overview ................................................................... 228
Frequency-Shift Keying (FSK) Commands ........................ 233
FSK Overview .................................................................. 233
Pulse Width Modulation (PWM) Commands ................... 236
PWM Overview ................................................................ 236
Frequency Sweep Commands ........................................... 241
Sweep Overview .............................................................. 241
Burst Mode Commands ................................................... 251
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TABLE OF CONTENTS
Burst Mode Overview ...................................................... 251
Arbitrary Waveform Commands ....................................... 262
Arbitrary Waveform Overview .......................................... 262
Save and Recall Commands ............................................. 273
Error Messages ............................................................... 275
SCPI Status Registers ...................................................... 289
APPENDIX .................................................... 295
Fuse Replacement ........................................................... 295
AFG-3000 Series Specifications ....................................... 296
EC Declaration of Conformity .......................................... 302
INDEX .......................................................... 303
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AFG-3000 Series User Manual
SAFETY INSTRUCTIONS
This chapter contains important safety instructions that should be followed when operating and storing the function generator. Read the following before any operation to ensure your safety and to keep the function generator in the best condition.
Safety Symbols
These safety symbols may appear in this manual or on the instrument.
WARNING
CAUTION
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Warning: Identifies conditions or practices that could result in injury or loss of life.
Caution: Identifies conditions or practices that could result in damage to the function generator or to other objects or property.
DANGER High Voltage
Attention: Refer to the Manual
Protective Conductor Terminal
Earth (Ground) Terminal
DANGER Hot Surface
SAFETY INSTRUCTIONS
Double Insulated
Do not dispose electronic equipment as unsorted municipal waste. Please use a separate collection facility or contact the supplier from which this instrument was purchased.
Safety Guidelines
General Guideline
CAUTION
Power Supply
WARNING
Do not place heavy objects on the instrument. Do not place flammable objects on the
Avoid severe impact or rough handling that
Avoid discharges of static electricity on or near
Use only mating connectors, not bare wires, for
The instrument should only be disassembled by
(Measurement categories) EN 61010-1:2001 specifies the measurement categories and their requirements as follows. The AFG-3000 falls under category II.
Measurement category IV is for measurement performed at the
Measurement category III is for measurement performed in a
Measurement category II is for measurement performed on
Measurement category I is for measurements performed on
AC Input voltage: 100 ~ 240V AC, 50 ~ 60Hz. Connect the protective grounding conductor of
instrument.
may damage the function generator.
the function generator.
the terminals.
a qualified technician.
source of a low-voltage installation.
building installation.
circuits directly connected to a low voltage installation.
circuits not directly connected to Mains.
the AC power cord to an earth ground to prevent electric shock.
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AFG-3000 Series User Manual
Fuse
WARNING
Cleaning the function generator
Operation Environment
Fuse type: T0.63A/250V. Only qualified technicians should replace the
fuse.
To ensure fire protection, replace the fuse only
with the specified type and rating.
Disconnect the power cord and all test leads
before replacing the fuse.
Make sure the cause of fuse blowout is fixed
before replacing the fuse.
Disconnect the power cord before cleaning the
function generator.
Use a soft cloth dampened in a solution of mild
detergent and water. Do not spray any liquid into the function generator.
Do not use chemicals containing harsh products
such as benzene, toluene, xylene, and acetone.
Location: Indoor, no direct sunlight, dust free,
almost non-conductive pollution (Note below) and avoid strong magnetic fields.
Relative Humidity: < 80% Altitude: < 2000m Temperature: 0°C to 40°C
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SAFETY INSTRUCTIONS
Storage environment
Disposal
(Pollution Degree) EN 61010-1:2001 specifies pollution degrees and their requirements as follows. The function generator falls under degree 2.
Pollution refers to “addition of foreign matter, solid, liquid, or gaseous (ionized gases), that may produce a reduction of dielectric strength or surface resistivity”.
Pollution degree 1: No pollution or only dry, non-conductive
pollution occurs. The pollution has no influence.
Pollution degree 2: Normally only non-conductive pollution
occurs. Occasionally, however, a temporary conductivity caused by condensation must be expected.
Pollution degree 3: Conductive pollution occurs, or dry, non-
conductive pollution occurs which becomes conductive due to condensation which is expected. In such conditions, equipment is normally protected against exposure to direct sunlight, precipitation, and full wind pressure, but neither temperature nor humidity is controlled.
Location: Indoor Relative Humidity: < 70% Temperature: -10°C to 70°C
Do not dispose this instrument as unsorted municipal waste. Please use a separate collection facility or contact the supplier from which this instrument was purchased. Please make sure discarded electrical waste is properly recycled to reduce environmental impact.
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AFG-3000 Series User Manual
Power cord for the United Kingdom
When using the function generator in the United Kingdom, make sure the power cord meets the following safety instructions.
NOTE: This lead/appliance must only be wired by competent persons
WARNING: THIS APPLIANCE MUST BE EARTHED IMPORTANT: The wires in this lead are coloured in accordance with the following code: Green/ Yellow: Earth Blue: Neutral Brown: Live (Phase)
As the colours of the wires in main leads may not correspond with the coloured marking identified in your plug/appliance, proceed as follows:
The wire which is coloured Green & Yellow must be connected to the Earth terminal marked with either the letter E, the earth symbol
Green/Green & Yellow. The wire which is coloured Blue must be connected to the terminal which is
marked with the letter N or coloured Blue or Black. The wire which is coloured Brown must be connected to the terminal
marked with the letter L or P or coloured Brown or Red. If in doubt, consult the instructions provided with the equipment or contact
the supplier. This cable/appliance should be protected by a suitably rated and approved
HBC mains fuse: refer to the rating information on the equipment and/or user instructions for details. As a guide, a cable of 0.75mm protected by a 3A or 5A fuse. Larger conductors would normally require 13A types, depending on the connection method used.
Any exposed wiring from a cable, plug or connection that is engaged in a live socket is extremely hazardous. If a cable or plug is deemed hazardous, turn off the mains power and remove the cable, any fuses and fuse assemblies. All hazardous wiring must be immediately destroyed and replaced in accordance to the above standard.
or coloured
2
should be
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GETTING STARTED
GETTING STARTED
The Getting started chapter introduces the function generator’s main features, appearance, set up procedure and power-up.
Main Features
Model name Frequency bandwidth
AFG-3081 80MHz
AFG-3051 50MHz
Performance
DDS Function Generator series 1μHz high frequency resolution maintained at
full range
1ppm frequency stability Full Function Arbitrary Waveform Capability
200 MSa/s sample rate 100 MSa/s repetition rate 1 M-point waveform length 16-bit amplitude resolution Ten 1M waveform memories True waveform output to display User define output section User defined marker output section D W R (Direct Waveform Reconstruction)
capability Waveform editing capability sans PC N Cycle and Infinite output mode selectable
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AFG-3000 Series User Manual
-60dBc low distortion sine wave
Features
Interface
Sine, Square, Ramp, Pulse, Noise, Sinc standard
waveforms
Internal and external LIN/LOG sweep with
marker output
Int/Ext AM, FM, PWM, FSK modulation Modulation/sweep signal output Burst function with internal and external
triggers without marker output
Store/recall 10 groups of setting memories Output overload protection
GPIB, RS232, USB standard interfaces 4.3 inch Color TFT LCD (480 × 272) Graphical
User Interface.
AWES (Arbitrary Waveform Editing Software)
PC software
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GETTING STARTED
Panel Overview
Front Panel
LCD display
TFT color LCD display, 480 x 272 resolution.
Function keys: F1~F6
Operation keys
Activates the functions which appear in the bottom of the LCD display.
Waveform is used to select a waveform type.
The FREQ/Rate key is used to set the frequency or sample rate
AMPL sets the waveform amplitude.
Sets the DC offset.
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AFG-3000 Series User Manual
Preset
Output key
The UTIL key is used to access the save and recall options, set the remote interface (USB, GPIB, RS232), use DSO link, update and view the firmware version, access the calibration options, output impedance settings, set the language and access the help menu.
ARB is used to set the arbitrary waveform parameters.
The MOD, Sweep and Burst keys are used to set the modulation, sweep and burst settings and parameters.
The preset key is used to recall a preset state.
The Output key is used to turn on or off the waveform output.
Output indicators
When an Output indicator is green, it indicates that the output is active.
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GETTING STARTED
USB host connector
Output terminals
Standby key
Selection keys
Scroll Wheel
The USB Host connector is used to save and restore waveform data and images, as well as update the firmware.
Modulation output terminal.
The SYNC output terminal. 50Ω output impedance.
The primary output terminal. 50Ω output impedance.
The standby key is used to turn the function generator on (green) or to put the function generator into standby mode (red).
Used to select digits when editing parameters.
The scroll wheel is used to edit values and parameters.
Keypad
Decrease The digital keypad is used to
Increase
enter values and parameters. The keypad is often used in conjunction with the selection keys and variable knob.
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Rear Panel
Trigger input
AFG-3000 Series User Manual
External trigger input. Used to receive external trigger signals.
MARK output
Mark output signal. Used for Sweep and ARB mode only.
Fan
Power Socket Input and fuse
Power input: 100~240V AC 50~60Hz. Fuse: T0.63A/250V For the fuse replacement procedure,
see page 295.
Power Switch
USB port
Main power switch.
The Mini-B type USB connector is used to connect the function generator to a PC for remote control.
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GETTING STARTED
RS232 port
GPIB
Trigger output
MOD input
9 pin female RS232 socket used for PC remote control.
24 pin female GPIB connector for PC remote control.
Trigger output terminal.
Modulation input terminal.
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AFG-3000 Series User Manual
Display
Parameter Windows
Status Tabs Shows the status of MOD, Sweep and Burst modes.
The Parameter display and edit window.
Waveform Disp l a y
The Waveform Display is used to output the waveform on the display.
Soft Menu Keys
The function keys (F1~F6) below the Soft Menu keys correspond to the soft keys.
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GETTING STARTED
Setting up the Function Generator
Background
This section describes how adjust the handle and power up the function generator.
Adjusting the stand
Pull out the handle sideways and rotate it.
Place AFG horizontally,
Or tilt stand.
Place the handle vertically to hand carry.
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AFG-3000 Series User Manual
y
On
Power Up
1. Connect the power cord to the socket on the rear panel.
2. Turn on the power switch on the rear panel.
3. Press and hold the Standby key on the front panel to turn the machine on. The
Standb standby key will change from red (standby) to green (on).
4. When the standby key turns green, the instrument will turn on showing a loading screen.
The function generator in now ready to be used.
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QUICK REFERENCE
QUICK REFERENCE
This chapter lists operation shortcuts, built-in help coverage, and default factory settings. Use this chapter as a handy reference for instrument functions. This chapter is to be used as a quick reference, for detailed explanations on parameters, settings and limitations, please see the operation chapter (page 55) or specifications (page
296).
How to use the Digital Inputs ........................................... 23
How to use the Help Menu ............................................... 24
Selecting a Waveform ........................................................ 26
Square Wave ......................................................................... 26
Triangle Wave ....................................................................... 26
Sine Wave ............................................................................. 27
Modulation ........................................................................ 28
AM ........................................................................................ 28
FM ........................................................................................ 29
FSK Modulation.................................................................... 30
PWM Modulation ................................................................. 31
Sweep ................................................................................ 32
Burst ................................................................................. 33
ARB ................................................................................... 35
ARB – Add Built-In Waveform .............................................. 35
ARB – Add Built-In Waveform - Pulse .................................. 35
ARB - Add Point .................................................................... 36
ARB - Add Line ..................................................................... 36
ARB – Output Section .......................................................... 37
ARB – Output N Cycle .......................................................... 37
ARB – Output Infinite Cycles ............................................... 38
ARB – Output Markers ......................................................... 39
Utility Menu ...................................................................... 39
Save ...................................................................................... 39
Recall .................................................................................... 40
Interface GPIB ...................................................................... 40
Interface RS232 .................................................................... 41
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AFG-3000 Series User Manual
Interface USB ....................................................................... 41
Menu Tree ......................................................................... 42
Waveform ............................................................................. 43
ARB-Display .......................................................................... 43
ARB-Edit ............................................................................... 44
ARB-Built in .......................................................................... 45
ARB- Built in- More .............................................................. 46
ARB-Save .............................................................................. 47
ARB-Load .............................................................................. 47
ARB-Output .......................................................................... 48
MOD .................................................................................... 49
Sweep ................................................................................... 49
Sweep - More ....................................................................... 50
Burst – N Cycle .................................................................... 51
Burst - Gate .......................................................................... 51
UTIL ...................................................................................... 52
UTIL - Interface .................................................................... 52
Default Settings ................................................................. 53
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QUICK REFERENCE
How to use the Digital Inputs
Background
The AFG-3000 has three main types of digital inputs: the number pad, selection keys and scroll wheel. The following instructions will show you how to use the digital inputs to edit parameters.
1. To select a menu item, press the corresponding function keys below (F1~F6). For example the function key F1 corresponds to the Soft key “Sine”.
2. To edit a digital value, use the selector key to move the cursor to the digit that needs to be edited.
3. Use the scroll wheel to edit the digit under the cursor. Clockwise increases the value, counterclockwise decreases the value.
4. Alternatively, the number pad can be used to set the value of a highlighted parameter.
/
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AFG-3000 Series User Manual
How to use the Help Menu
Background
Every key and function has a detailed description in the help menu.
1. Press UTIL.
2. Press System (F5).
3. Press Help (F3).
4. Use the scroll wheel to navigate to a help item. Press Select to choose the item.
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Keypad
Create Arbitrary Waveform
Modulation Function
Sweep Function Provides help on the Sweep
Provides help on any front panel key that is pressed.
Provides help on creating arbitrary waveforms.
Explains how to create Modulated waveforms.
function.
QUICK REFERENCE
Burst Function Provides help on the Burst
function.
DSO Link Provides help on DSO link.
Hardcopy Explains how to use the
Hardcopy function.
5. For example select item 4 to see help on the sweep function.
6. Use the scroll wheel to navigate to each help page.
7. Press F6 to return to the previous menus.
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AFG-3000 Series User Manual
Selecting a Waveform
Square Wave
Example: Square Wave, 3Vpp, 75%Duty, 1 kHz
Output
Input: N/A
1. Press the Waveform key and select Square (F2).
2. Press Duty(F1), followed by 7 + 5 + %(F5)
3. Press the Freq/Rate key, followed by 1 + kHz (F5).
4. Press the AMPL key, followed by 3 + VPP (F6).
5. Press the output key.
Triangle Wave
Example: Triangle Wave, 5Vpp,10kHz
Output
Input: N/A
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1. Press the Waveform key and select Triangle (F3).
2. Press the Freq/Rate key, followed by 1 + 0 + kHz (F5).
QUICK REFERENCE
3. Press the AMPL key, followed by 5 +VPP (F6).
4. Press the output key.
Sine Wave
Example: Sine Wave, 10Vpp,100kHz
Output
Input: N/A
1. Press the Waveform key and select Sine (F1).
2. Press the Freq/Rate key, followed by 1 + 0 +0 + kHz (F5).
3. Press the AMPL key, followed by 1 + 0 +VPP (F6).
4. Press the output key.
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AFG-3000 Series User Manual
Modulation
AM
Example: AM modulation. 100Hz modulating square wave. 1kHz Sine wave carrier. 80% modulation depth.
Output
Input: N/A
1. Press the MOD key and select AM (F1).
2. Press Waveform and select Sine (F1).
3. Press the Freq/Rate key, followed by 1 + kHz (F5).
4. Press the MOD key, select AM (F1), Shape (F4), Square (F2).
5. Press the MOD key, select AM (F1), AM Freq (F3).
6. Press 1 + 0 + 0 + Hz (F2).
7. Press the MOD key, select AM (F1), Depth (F2).
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8. Press 8 + 0 + % (F1).
QUICK REFERENCE
9. Press MOD, AM (F1), Source (F1), INT (F1).
10. Press the output key.
FM
Example: FM modulation. 100Hz modulating square wave. 1kHz Sine wave carrier. 100 Hz frequency deviation. Internal Source.
Output
Input: N/A
1. Press the MOD key and select FM (F2).
2. Press Waveform and select Sine (F1).
3. Press the Freq/Rate key, followed by 1 + kHz (F5).
4. Press the MOD key, select FM (F2), Shape (F4), Square (F2).
5. Press the MOD key, select FM (F2), FM Freq (F3).
6. Press 1 + 0 + 0 + Hz (F2).
7. Press the MOD key, select FM (F2), Freq Dev (F2).
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AFG-3000 Series User Manual
8. Press 1 + 0 + 0 + Hz (F3).
9. Press MOD, FM (F2), Source (F1), INT (F1).
10. Press the output key.
FSK Modulation
Example: FSK modulation. 100Hz Hop frequency. 1kHz Carrier wave. Triangle wave. 10 Hz Rate. Internal Source.
Output
Input: N/A
1. Press the MOD key and select FSK (F3).
2. Press Waveform and select Triangle (F3).
3. Press the Freq/Rate key, followed by 1 + kHz (F5).
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4. Press the MOD key, select FSK (F3), FSK Rate (F3).
5. Press 1 + 0 + Hz (F2).
6. Press the MOD key, select FSK (F3), Hop Freq (F2).
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