GW Instek AFG-100, AFG-200 User Manual
Arbitrary Function Generator
Module
AFG-125/225/125P/225P
USER MANUAL
GW INSTEK PART NO. 82DS-23042EA1
ISO-9001 CERTIFIED MANUFACTURER
August 2014
This manual contains proprietary information, which is protected by
copyright. All rights are reserved. No part of this manual may be
photocopied, reproduced or translated to another language without
prior written consent of Good Will company.
The information in this manual was correct at the time of printing.
However, Good Will continues to improve products and reserves the
rights to change specification, equipment, and maintenance
procedures at any time without notice.
Good Will Instrument Co., Ltd.
No. 7-1, Jhongsing Rd., Tucheng Dist., New Taipei City 236, Taiwan
TABLE OF CONTENTS
Table of Contents
SAFETY INSTRUCTIONS ................................................... 4
GETTING STARTED ........................................................... 8
AFG-125/225/125P/225P Overview ........ 9
Panel Overview .................................... 12
DS2-FH1 Housing Installation ............. 14
Module Installation/Removal ............... 15
USB Configuration ............................... 17
AFG App Installation ........................... 18
Uninstalling the AFG App .................... 19
QUICK REFERENCE ......................................................... 20
Options Menu Tree .............................. 21
OPERATION .................................................................... 25
Basic Operation ................................... 26
Modulation .......................................... 40
Sweep .................................................. 50
Burst .................................................... 53
ARB ...................................................... 56
Power Supply Function ........................ 70
APPENDEX ...................................................................... 71
Dimensions ......................................... 71
Preset ARB Waveform .......................... 72
Declaration of Conformity .................... 80
INDEX............................................................................. 81
3
AFG-125/225 Series Options Manual
WARNING
Warning: Identifies conditions or practices that
could result in injury or loss of life.
CAUTION
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
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.
4
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.
General
Guideline
CAUTION
Do not place heavy objects on the instrument.
Do not place flammable objects on the
instrument.
Avoid severe impact or rough handling that
may damage the function generator.
Avoid discharges of static electricity on or near
the function generator.
Use only mating connectors, not bare wires, for
the terminals.
The instrument should only be disassembled by
a qualified technician.
Power Supply
WARNING
DC Input voltage: 5V/2A.
Do not exceed an input voltage of 5V±5%.
Fuse
WARNING
Fuse type: F3.15A/125V.
Only qualified technicians should replace the
fuse.
To ensure fire protection, replace the fuse only
with the specified type and rating.
Disconnect the power and all test leads before
replacing the fuse.
Make sure the cause of fuse blowout is fixed
before replacing the fuse.
Safety Guidelines
5
AFG-125/225 Series Options Manual
Cleaning the
function
generator
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.
Operation
Environment
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
(Pollution Degree) EN 61010-1:2010 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.
Storage
environment
Location: Indoor
Relative Humidity: < 70%
Temperature: -10°C ~ 70°C
6
SAFETY INSTRUCTIONS
Disposal
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.
7
AFG-125/225 Series Options Manual
AFG-125/225/125P/225P Overview .................................... 9
Model Lineup ......................................................................... 9
Main Features ....................................................................... 10
Accessories ............................................................................ 11
Optional Accessories ........................................................... 11
Panel Overview ............................................................... 12
Front Panel ........................................................................... 12
Rear Panel ............................................................................. 13
DS2-FH1 Housing Installation ......................................... 14
Module Installation/Removal .......................................... 15
USB Configuration .......................................................... 17
AFG App Installation ....................................................... 18
Uninstalling the AFG App ................................................ 19
GETTING STARTED
This chapter gives a brief overview of how to
install the AFG-125/225/125P/225P module onto
the GDS-2000A.
8
GETTING STARTED
Model
AFG-125
AFG-125P
AFG-225
AFG-225P
Frequency Range
1uHz-25MHz
Output Channels
1 1 2
2
Power Output
None
Yes
None
Yes
AFG-125/225/125P/225P Overview
The AFG-125, AFG-225, AFG-125P and AFG-225P are arbitrary
function generator modules for use with the GDS-2000A series
DSOs. The options require the DS2-FH1 module extension bay to
secure the module to the DSO. This user manual will explain how
to become familiar with the arbitrary function generator modules.
The Getting Started chapter will introduce the modules with an
overview of the features and installation of the APP and
accompanying PC software. The Operation chapter will go over the
operation details.
Note1: The AFG-125/225/125P/225P are only supported with
GDS-2000A series DSOs with firmware version V1.19 or above
installed.
Note2: Throughout this manual AFG-125 will refer to both the
AFG-125 and the AFG-125P, unless stated otherwise. Similarly,
AFG-225 will refer to both the AFG-225 and AFG-225P, unless
stated otherwise.
Model Lineup
9
Main Features
Performance
DDS signal generator
1μHz resolution over the full range
20ppm frequency stability
Arbitrary Waveform Capability
120 MSa/s sample rate
60 MSa/s repetition rate
4 k-point waveform length
4k waveform memory, 10 groups
User-defined output
DWR (Direct waveform reconstruction) capability
PC waveform editing
Features
Sine, Square, Ramp, Pulse & Noise as standard
waveforms
Internal LIN/LOG sweeps with marker output
AM, FM, FSK, SUM modulation
Triggered burst function
Save/recall 10 setup memories
Output overload protection
Interface
USB interface as standard
AWES (arbitrary waveform editing software) PC
software
Power Supply
(AFG-125P/
225P only
2.5V/3.3V/5V supply output
0.6A current output
AFG-125/225 Series Options Manual
10
GETTING STARTED
Part Number
Description
DS2-FH1
Module extension bay
GTL-254
USB A – USB A/B converter
Quick start guide
CD User manual
Part Number
Description
GPA-501
Power adapter
GTL-246
USB Type A – Type B cable
GTL-201A
Ground lead
Accessories
Optional Accessories
11
AFG-125/225 Series Options Manual
GND CH1 Output
Power Supply
Status LEDs
CH2 Output
SYNC Output
Positive OutputNegative Output
C
CH CH
GD
VV V
FIED
WP
Power Supply
Status LEDs
VV V
FIED
These LEDs indicate the immediate
status of the power supply function
on the AFG-125/225:
2.5V
2.5V output is on
3.5V
3.5V output is on
5V
5V output is on
OVER LOAD
Overload condition
Negative Output
8
GD
Negative output port
GND
Ground port
Positive Output
Positive output port
SYNC
C
Sync output. A TTL signal is output
as the sweep marker or sync output
signal. See page 50 for sweep
details or page 34 for sync details.
CH1
CH
CH1 (Signal 1) output.
Panel Overview
Front Panel
12
CH2
CH
CH2 (Signal 2) output (AFG-225
only).
MX
V
INPUT
Vent USB Device Port Input Power
Vent
Cooling vent.
USB Device Port
Interfaces with the GDS-2000A and
can also provide power.
Input Power
MX
V
INPUT
Input power source:
DC 5V; 2A max.
Rear Panel
GETTING STARTED
13
AFG-125/225 Series Options Manual
Background
The DS2-FH1 consists of 2 housings that are
attached to the feet on the underside of the case.
Note
Make sure the power is turned off before installing the
AFG-125/225 module.
Steps
1. Slip the housing over the front of the feet on the
GDS-2000A.
2. Make sure that the rear tab clips securely over
the fan vent grid on the rear panel, as shown
below.
1
2
3. The AFG-125/225 module is now ready to be
installed.
DS2-FH1 Housing Installation
14
GETTING STARTED
Background
The AFG-125/225 modules are installed into the
area that is left between both of the DS2-FH1
housings.
Note
Make sure the power is turned off before installing the
AFG-125/225 module.
Installation Steps
1. Slide the module into the slot that was created
between the DS2-FH1 housings. The front of
the module should be facing forwards.
2. Make sure the module is secure. The module
will click into place when it is inserted
properly.
3. Make sure the GDS-2000A is turned off before
proceeding.
4. Connect one end of the GTL-254 USB cable to
the rear panel USB Device port and to the USB
Host port. Connect the other end to the Device
port on the AFG-125/225, as shown below.
5. Turn the power back on. The AFG-125/225 will
now be accessible in the Option menu.
Module Installation/Removal
15
AFG-125/225 Series Options Manual
Removal
1. At the rear of the housings are two tabs. Pull
both tabs outwards.
2. The module can now be slid out from the
housing (back to front).
16
GETTING STARTED
Background
The USB Device port needs to be configured to
provide power for the AFG-125/225 if an external
power supply is not used.
Steps
1. As shown previously in the “AFG-125/225
Module Installation/Removal” section, connect
the GTL-254 USB cable.
2. Press the Utility key then I/O from
the bottom menu.
Utility
3. From the side menu press USB
Device Port and select USB Power.
The port will now supply power to the AFG-125/225.
Caution
The USB Device Port should be reconfigured to
“Computer” or “Printer” when the AFG-125/225 is not
used. Failure to do so may damage the PC or printer
when connected in the “USB Power” mode.
USB Configuration
17
AFG-125/225 Series Options Manual
Background
Install the AFG app as you would any application
for the GDS-2000A series.
The AFG app file (AFG.gz) can be found on the
User Manual CD under the APP directory.
For the latest files and information for
applications, see the GW Instek website:
www.gwinstek.com or contact your nearest
distributor.
Steps
1. Make sure the DS2-FH1 and AFG-125/225 are
installed and turned on.
Panel Operation
2. Insert a USB flash drive that has
the AFG app file (AFG.gz) copied
onto it into the front panel USB
port.
Demo
3. Press the Utility key then the File
Utilities soft-key.
Utility
4. Navigate to the desired file in the
USB file path.
When the AFG.gz file has been
found, press the Select key twice to
start the installation.
VARIABLE
AFG App Installation
18
GETTING STARTED
5. The installation will complete in a few seconds.
When finished a pop-up message will appear
asking you to restart the GDS-2000A.
6. Restart the GDS-2000A.
Background
The AFG app can be uninstalled from the TEST
menu, like the other optional apps.
Panel Operation
1. Press the Test key.
T
1. Press the APP button from the
bottom menu.
2. Use the Variable knob to select the
AFG app.
VRIBL
Up Down
2. Press Uninstall on the side menu
twice. Once to select and once to
confirm uninstallation.
3. The uninstallation process is complete when a
message showing “Please turn off the
oscilloscope and turn on again” appears.
Uninstalling the AFG App
19
AFG-125/225 Series Options Manual
Options Menu Tree ......................................................... 21
Option Key ........................................................................... 21
Arbitrary Function Generator ............................................ 22
Arbitrary Function Generator – Signal 1/2 Setup ........... 23
Arbitrary Function Generator – MOD part II ................ 24
Power Supply ........................................................................ 24
QUICK REFERENCE
This chapter describes the menu tree for the AFG125/225.
20
QUICK REFERENCE
Accesses the functions in the Option menu.
Function
Gen 1
Function
Gen 2
I/O
L
z
O
Logic
Analyzer
Function
Gen 1
Goes to the Logic Analyzer menu
Goes to the Function Generator menu
for the GEN 1 output
Function
Gen 2
Goes to the Function Generator
menu for the GEN 2 output
I/O
Goes to the options I/O menu
DVM
AFG
AFG
Goes to the options AFG menu
*Note: Any option that is not installed/turned on will be grayed-out.
Options Menu Tree
Option Key
21
AFG-125/225 Series Options Manual
Set up the AFG-225/125 arbitrary function generator.
Note: The Power Supply function is only available for the AFG-125P
and AFG-225P
The Dual Chan and Sync Setup functions are only available for the
AFG-225 and AFG-225P.
O
Signal 1 Setup
UTIL
Signal 1
Signal 2
Select
ON
O
On
Off
Output
50Ω
High Z
Load
-180.0º~180.0º
Phase
_P
Signal 1 Setup
Signal 2 Setup
Goes to the Signal 1/2 Setup menu
Signal 1 Setup
P
On
Off
Ampl Cpl
OFF
ON
Inverted
Tracking
_P
Bk
OFF
Offset
Ratio
Freq Cpl Type
-999.99Hz ~
24.999MHz
Offset
0.001 ~
1000.000
Ratio
On
Off
Sync
Signal 1
Signal 2
Source
Carrier
Marker
Mode
Normal
Inverted
Polarity
P
Power Supply
Goes to the Power Supply menu
Arbitrary Function Generator
22
QUICK REFERENCE
Setup the signal type for each channel. From the AFG Arbitrary
Function Generator menu on page 22.
Waveform Mode
MO
ARB
Sine
Square
Pulse
Rm
N
On
Off
ARB
L
Om
M1
On
Off
MOD
M
M
K
M1
On
Off
Sweep
B
On
Off
Burst
N
User
1μHz ~ 60MHz
Frequency
1mVpp to
2.5Vpp
(into 50Ω)
2mVpp to 5Vpp
(open-circuit)
Amplitude
User
2μHz ~ 120MHz
Rate
Linear
Log
Type
M
M
Mk
Go Back
1~65535 cycles
Cycles
Infinite
-360º ~ 360º
Phase
1ms ~ 500
seconds
Period
TRI
INT
Manual Trigger
0~655350 nS
Delay
Bk
PM
SUM
1μHz~ 25MHz
1μHz~ 15MHz
(Square)
1μHz~ 1MHz
(Ramp)
Start
1μHz~ 25MHz
1μHz~ 15MHz
(Square)
1μHz~ 1MHz
(Ramp)
Stop
M1
0.001 ~ 500.000
Sec
SWP Time
1μHz ~ 25MHz
1μHz ~ 15MHz
(Square)
1μHz ~ 1MHz
(Ramp)
Span
450Hz ~ 25MHz
450Hz ~ 15MHz
(Square)
450Hz ~ 1MHz
(Ramp)
Center
±1.25Vpk ac+dc
(into 50Ω)
±2.5Vpk ac+dc
(Open circuit)
Offset
On
Off
Marker
Bk
1μHz ~ 25 MHz
1μHz ~ 1 MHz
(Ramp)
Frequency
AM
FM
Goes to the Signal 1 Setup menu -MOD part II
FSK
PM
SUM
Arbitrary Function Generator – Signal 1/2 Setup
23
AFG-125/225 Series Options Manual
Configures AM, FM, FSK, PM or SUM modulation. From the
Arbitrary Function Generator – Signal 1/2 Setup – MOD menu on
page 23.
UM
Bk
0.0% ~ 100.0%
SUM Ampl
0.002Hz ~
20kHz
SUM Freq
Sine
Square
Triangle
UpRamp
DnRamp
Shape
M
Bk
0.0% ~ 120.0%
Depth
0.002Hz ~
20kHz
AM Freq
Sine
Square
Triangle
UpRamp
DnRamp
Shape
M
Bk
0.002Hz ~
20kHz
FM Freq
Sine
Square
Triangle
UpRamp
DnRamp
Shape
K
Bk
0.002Hz ~
100kHz
FSK Rate
Bk
0.0º ~ 360º
Phase Dev
0.002Hz ~
20kHz
PM Freq
Sine
Square
Triangle
UpRamp
DnRamp
Shape
PM
DC~25MHz
DC~15MHz
(square)
DC~1MHz
(Ramp)
Freq Dev
1 μHz~25MHz
(sine)
1 μHz~15MHz
(Square, Pulse)
1 μHz~1MHz
(Ramp)
Hop Freq
Power supply menu for the AFG-125P and AFG-225P.
P
On
Off
Power
2.5V
3.3V
5V
Voltage
Arbitrary Function Generator – MOD part II
Power Supply
24
OPERATION
Basic Operation .............................................................. 26
Entering the AFG Menu ..................................................... 26
State Display ......................................................................... 27
Selecting a Basic Waveform ................................................ 28
Turning the Output On ...................................................... 29
Dual Channel Tracking ....................................................... 31
Recalling the Preset Settings ............................................... 33
Sync Setup ............................................................................. 34
Modulation ..................................................................... 40
AM Modulation .................................................................... 40
FM Modulation .................................................................... 42
FSK Modulation ................................................................... 44
PM Modulation .................................................................... 46
SUM Modulation .................................................................. 48
Sweep ............................................................................. 50
Sweep ..................................................................................... 50
Burst ............................................................................... 53
Burst Waveform ................................................................... 53
ARB ................................................................................. 56
Loading a Preset ARB Waveform ...................................... 56
Creating/Editing a Preset ARB Waveform ...................... 59
Setting ARB Output Length ............................................... 67
Setting ARB Frequency, Rate, Amplitude & Offset ........ 68
OPERATION
25
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