ADInstruments AD8660 Series User manual

AD INSTRUMENTS
AD8660 Series Fully Numerical Control
Dual Channel Function/Arbitrary Waveform Generator
User’s Manual
Rev1.0 May,2019

AD INSTRUMENTS
AD8660 Series User’s Manual I
Guaranty and Declaration
Copyright
© 2019 AD INSTRUMENTS
Declaration
● AD INSTRUMENTS reserves the right to modify or change parts of or
all the specifications and pricing policies at company’s sole decision.
● Information in this publication replaces all previously corresponding material.
● AD INSTRUMENTS shall not be liable for losses caused by either
incidental or consequential in connection with the furnishing, use or
performance of this manual as well as any information contained.
●Any part of this document is forbidden to be copied or photocopied or
rearranged without prior written approval of AD INSTRUMENTS.
Contact Us
If you have any problem or requirement when using our products or this
manual, please contact AD INSTRUMENTS.
Tel： [phone] E-mail：[e-mail]
Website：www.adinstruments.es

AD INSTRUMENTS
II AD8660 Series User’s Manual
Contents
Guaranty and Declaration .................................................................................... I
Product Introduction ........................................................................................... 4
Quick Start ........................................................................................................... 7
General Inspection .......................................................................................... 7
Front Panel Overview ...................................................................................... 8
Back Panel Overview .................................................................................... 10
Power On and Inspection .............................................................................. 11
User Interface ................................................................................................ 12
Appearance and Dimensions .......................... ¡Error! Marcador no definido.
Front Panel Operations ..................................................................................... 15
Waveform Output .......................................................................................... 15
Select Output Channel ............................................................................................ 15
Select Waveform ..................................................................................................... 16
Set Frequency ......................................................................................................... 17
Set Amplitude .......................................................................................................... 18
Set Offset ................................................................................................................ 19
Set Duty Cycle (Rectangle)&Set pulse wave pulse width (Adj-Pulse) ................. 20
Set Phase ................................................................................................................ 21
Enable Output ......................................................................................................... 22
Example：Output Sine Waveform .......................................................................... 23
Burst .......................................................................................................... 25
Modulation Function .................................................................................. 25
Frequency Meter/Counter ............................................................................. 27
Enable the Counter ................................................................................................. 27
Set the Counter ....................................................................................................... 28
Sweep ........................................................................................................... 29
Sweep Object .......................................................................................................... 29
Sweep Start Position ............................................................................................... 30
Sweep End Position ................................................................................................ 31
VCO (Voltage Control Output) Sweep ..................................................................... 32
Sweep Type ............................................................................................................. 33
Enable Sweep Function .......................................................................................... 34
System Configuration and Auxiliary Functions .............................................. 35
Save and Load ........................................................................................................ 36
Configuration ........................................................................................................... 37
Uplink ...................................................................................................................... 38
Synchronization ....................................................................................................... 39
Troubleshooting ................................................................................................ 40
Technical Specification ..................................................................................... 41
Appendix ............................................................................................................ 46

AD INSTRUMENTS
AD8660 Series User’s Manual III

AD INSTRUMENTS
4 AD8660 Series User’s Manual
Product Introduction
This manual applies to each model of AD8660series Function/Arbitrary
Waveform Signal Generator.
AD8660 Dual-channel Function / Arbitrary waveform generator is a set of
Function Signal Generator, Arbitrary Waveform Generator, Pulse Generator,
Analog / Digital modulator, VCO, Sweep, Counters and Frequency Meter and other
functions in a high Performance, cost-effective, multi-function signal generator.
Abundant shortcut keys and graphical user interface simplifies every operation.
Users do not have to spend a lot of time to learn and familiar with the operation of
the instrument, you can be skilled use. For education, research and development,
production, testing, maintenance and other industries to provide a new choice.
The instrument adopt the Direct Digital Synthesizer (DDS) technology and
provide stable, precise, pure and low distortion signals. Surface mounting
technology improves interference immunity and operational life span. Can output
up to 97 groups of functions / arbitrary waveform, contains 33 groups of preset
waveforms and 64 groups of user-defined waveforms. Preset waveforms: Sine,
Square, Rectangle (Duty Cycle adjustable), Pulse (Pulse width and cycle time can
be set accurately), Triangle/Ramp, CMOS(0~12V), Four channels TTL,
Exponential Rise, Exponential Fall, Noise, ECG, DC etc.

AD INSTRUMENTS
AD8660 Series User’s Manual 5
Main Features:
u Adopt the Direct Digital Synthesizer (DDS) technology and provide stable,
precise, pure and low distortion signals.
u 2.4 inch TFT Color LCD with 320×240 resolution, displaying parameters and
graphics of the two channels at the same time.
u The instrument uses 14-bit high-speed D/A converter chip (5Vpp output
quantization error is less than 1mV), 250MSa/s sample rate, 14bits vertical
resolution.
u Can output up to 97 groups of functions / arbitrary waveform, contains 33
groups of preset waveforms and 64 groups of user-defined waveforms. Preset
waveforms: Sine, Square (Duty Cycle adjustable), Pulse (Pulse width and
cycle time can be set accurately), Triangle/Ramp, CMOS(0~12V), Four
channels TTL, Exponential Rise, Exponential Fall, Noise, ECG, DC etc.
u Enable to store 64 arbitrary waveform data files, each one of waveform storage
depth 8192 points * 14bits;
u Various modulation types: AM, FM, PM, ASK, FSK and PSK modulations.
u Sweep Function: It can sweep 4 properties of signals including frequency,
amplitude, offset and duty cycle; It has Linear and Logarithm two sweep types;
0.01S~999.99S sweep time; Up, Down and roundtrip sweep directions.
u VCO Function (Voltage Control Output): Can be achieved by an external input
signal: voltage controlling frequency, voltage controlling amplitude, voltage
controlling offset, voltage controlling duty cycle and PWM modulations.
u Burst Output Function: There has Manual Trigger, internal CH2 Trigger, and
External Trigger for your options. It can output 1~1048575 pulse trains.
u 100M Frequency meter function: It can measure frequency, period, pulse width
and duty cycle. Max. frequency workable is 100MHz and Min. frequency
workable is 0.01 Hz.
u Counter Function: It has 2 coupling measure modes including DC coupling and
AC coupling. This design can solve inaccuracy problem of AC coupling.
u Standard dual full functional channels which are equivalent to two independent
generators.
u Channel SYNC Function: Support waveform copy and state copy between
channels.
u Support two or more signal generators connected to achieve multi-channel
output, the maximum support 16-channel synchronous output, the phase
between each channel can be adjusted.

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6 AD8660 Series User’s Manual
u Precisely adjust the phases of the two channels, Precision can be 0.01°.
u Minimum amplitude resolution can be up to 1 mV. Amplitude range is 0~20Vpp.
u Duty-cycle of each channel can be adjusted independently0.01%-99.99%, the
adjusting resolution is 0.01%.
u -12V~+12V DC Offset function. Resolution 0.001V.
u Save function: It can save 20 sets user-set parameters and can be loaded at
any time.
u Communicating function: All functions can be controlled by PC program and
the communication protocol is open for secondary development.
u Output short-circuit protection: All channels can work more than 60 seconds
when the load is short-circuited.
u Provide powerful waveform editing PC software. Users can download arbitrary
waveform to this instrument after edit through PC program which is included
in user CD.
u Adopt ABS plastic shell with table type design. Use 100-240V (AC) wide range
voltage power supply.

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AD8660 Series User’s Manual 7
Quick Start
General Inspection
Please follow the items below when you receive a new AD8660series
Function/Arbitrary Waveform Generator.
1
．
Inspect the shipping container for damage
Keep the damaged shipping container or cushioning material until the
contents of the shipment have been checked for completeness and the
instrument has passed both electrical and mechanical tests. The consigner or
carrier shall be liable for the damage to instrument resulting from shipment.
2
．
Inspect the instrument
In case of any damage, or defect, or failure, notify your AD INSTRUMENTS
sales representative.
3
．
Check the accessories
Please check the accessories according to the Appendix C ( packing lists). If
the accessories are incomplete or damaged, please contact your AD
INSTRUMENTS sales representative.

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8 AD8660 Series User’s Manual
Front Panel Overview
The front panel is divided into several function areas for easy operation.
Item
Function
Description
1
LCD
2.4 inch TFT（320×240）color LCD. Operation instruction please
check chapter “User Interface”.
2
Manu
Buttons
F1~F5 buttons are matched with Manu displayed on the LCD. Press
corresponding button to activate submenu represented
3
Function
Buttons Area
— Press this buttons to switch waveforms among Sine,
Square,Rectangle, Triangle and so on.
— Press this button to switch between frequency meter
and counter to measure frequency, period, duty cycle and
pulse width of external signal output.
— Both DC and AC are workable.
— Gate Time can be 1S, 10S or 100S.
— Dual channels output and measurement function can
work together at same time.
— Can sweep Sine, Square, Arbitrary and so on.
— Can sweep frequency, amplitude, offset and phase.
— 2 sweep types: Linear, Logarithm.
— VCO voltage controls parameters of signal output
available (for example: voltage controlled oscillator).
— Auxiliary functions and system configuration setting.
— Can save 20 sets waveform parameters including
frequency, amplitude, offset, phase and so on.
— System Language has English and Chinese for
user’s option.
— Buzzer can be turned on/off in this manu.
— Set multimachine uplink.
— Switch Master-Slave status
— Set default status of dual channels at start-up.
— Trigger and modulation function button
— Set definite amount of pulse string to output.
— Set modulation mode: ASK, FSK, PSK

AD INSTRUMENTS
AD8660 Series User’s Manual 9
— VCO function can be set
— Frequency, Amplitude, Bias and Duty of
VCO Voltage Control Signal Generator
— Output function of various parameters such as VCO.
4
Arrows
Press Arrow buttons to select figure which you want to
edit when setting values of each parameter.
5
ADJ Knob
Press the knob as confirmation (OK button).
— Rotate the ADJ Knob to increase or reduce the current value
indicated by the cursor.
— Frequency unit can be changed by Press ADJ Knob under
Frequency value setting status.
— Press ADJ Knob to Start/Stop sweep under Sweep interface.
6
Power
Button
The power indicator keeps illuminating when power on.
Press the power button and the indicator change to notify light status
and the signal output terminates.
7
CH1 channel
output
connector
CH1 connector, output impedance is 50Ω.
When CH1 channel activates (indicator illuminates), CH1 outputs
signal with parameters set.
8
Output
Channels
Control CH1 output. Press it to switch to CH1 parameter
setting interface.
— Press it to turn on CH1 output with current
configuration. The indicator will illuminate.
— Press it again to turn off CH1 output and the indicator
will extinguish.
Control CH2 output. Press it to switch to CH2 parameter
setting interface.
— Press it to turn on CH2 output with current
configuration. The indicator will illuminate.
— Press it again to turn off CH2 output and the indicator
will extinguish.
—Confirm key
—When editing the frequency parameters, the unit of
frequency can be changed by pressing the knob down.
—When scanning the interface, press down the knob to
start/stop the scanning state.
9
CH2 channel
output
connector
CH2 connector, output impedance is 50Ω.
When CH2 channel activates (indicator illuminates), CH2 outputs
signal with parameters set.
10
AC coupling
measuring
terminal
BNC connector, input impedance 100Ω. For inputting signal of meter or
counter.

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10 AD8660 Series User’s Manual
Back Panel Overview
The back panel of AD8660is as picture 1-2 below. 4 BNC terminals on the
left are DC coupling measuring terminals Trig/FSK/ASK/PSK IN, external sweep
input VCO IN, Synchronization output connector SYNC OUT, and
Synchronization input connector SYNC IN. Then follows TTL output terminal,
USB terminal, power switch and power input socket.
1. BNC connector
Trig/FSK/ASK/PSK IN: DC coupling measuring terminal and ASK/PSK/FSK
modulation trigger input terminal.
VCO IN: External signal sweep input terminal can realize voltage controlling
frequency, voltage controlling amplitude, voltage controlling offset, voltage
controlling duty cycle and so on. Frequency of external signal input should be
lower than 500 Hz.
SYNC OUT: Synchronization signal output terminal.
SYNC IN: Synchronization signal input terminal.
2. TTL signal output
Frequency of Port A is same with frequency of CH1 output. Frequency of
Port B is same with frequency of Port A but with reverse phase (180°).
Frequency of Port C is same with frequency of CH2. Frequency of Port D is
same with Port C but with reverse phase (180°).
3. USB Device interface
It’s for communication with PC (This is a USB-TTL serial port and driver is
needed). Can programming by host computer.
4. Power switch and Power input socket(voltage range AC100V-AC240V).
Warning
To avoid instrument damage, voltage of signal input from
EXT.IN CANNOT exceed ±20Vac+dc.Voltage of signal input from
Trig/FSK/ASK/PSK IN CANNOT exceed DC5V.
Note
To ensure the normal work, please use 100-240V AC power
supply.

AD INSTRUMENTS
AD8660 Series User’s Manual 11
Power On and Inspection
Connect to Power
Please connect the generator to AC power supply using the Power cable
supplied in the accessories. The power supply use 100-240V AC power. The power
of this instrument is less than 5W.
Power On
Turn on the power switch after the power cord is connected. The generator will
execute self-inspection. The LCD will show welcome interface after the inspection
is over. If the generator cannot work normally, please check the Chapter
“Troubleshooting” for solution.
Set the System Language
AD8660series Function/Arbitrary Waveform Generator supports Chinese and
English system languages. You can press SYS→CONF to switch the system
language.

AD INSTRUMENTS
12 AD8660 Series User’s Manual
User Interface
The user interface of AD8660provides four types of display modes: Dual
Channels Parameters (default), Single Channel Extension, Auxiliary Functions and
System Interface.
Dual Channels Parameters (default)
The upper half of LCD displays the channel selected currently and the
parameters can be set. Press CH1 or CH2 to change current channel selected.
1-4 User Interface (CH1 selected)
Item
Description
1
Current channel selected.
Display current channel selected for operation.
2
Current waveform selected.
Display the name of current waveform selected. For example,
“CH1=Sine”
means current waveform selected of CH1 is
Sine Wave. It can be changed by press WAVE
button.
Meanwhile, waveform can be changed quickly by rotating ADJ
Knob when waveform switch function is activated.
3
Output status of current channel.
Display On/Off status of current channel. It can be switched
by Press CH1 or CH2.
4
Waveform
Display diagram of current waveform（Including Arbitrary）.
Yellow indicates CH1 and blue indicates CH2.
5
Manu Bar
Display current operable options .

AD INSTRUMENTS
AD8660 Series User’s Manual 13
6
Frequency
Display frequency value of current channel. Press FREQ
button to highlight it and use ADJ Knob and Arrows to
change the value.
7
Amplitude
Display amplitude value of current channel. Press AMPL
button to highlight it and use ADJ Knob and Arrows to
change the value.
8
Offset
Display DC Offset value of current channel. Press OFFS
button to highlight it and use ADJ Knob and Arrows to
change the value.
9
Duty Cycle
Display Duty Cycle value of current channel. Press DUTY
button to highlight it and use
ADJ Knob and Arrows to change
the value.
10
Phase
Display Phase value of current channel. Press PHAS
to
highlight it and use ADJ Knob and Arrows to change the value.
11
Parameters of the channel unselected.
Display parameters of the channel unselected including
frequency, amplitude, offset, phase, duty cycle and output
status. These Parameters cannot be changed directly in this
interface. If you need to change them, Please switch the
channel to be selected.

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14 AD8660 Series User’s Manual

AD INSTRUMENTS
AD8660 Series User’s Manual 15
Front Panel Operations
Waveform Output
AD8660series can output waveforms (Sine, Square, Triangle/Ramp, Pulse
and Noise etc.) from one of the channels separately or from the two channels at
the same time. At start-up, the dual channels are configured to output a sine
waveform with 10kHz frequency and 5Vpp amplitude by default. Two channels use
default setting saved at Position 1 when power on. Users can configure the
instrument to output various waveforms.
Select Output Channel
CH1 and CH2 buttons are used to change current channel selected. At start-
up, CH1 is displayed on the top with yellow color and CH2 is displayed on the
bottom with blue color. Press CH1 or CH2 to select channel needed. When
selecting CH2 as output channel, CH2 parameters displays on the top for
configuration.
KEY POINT:
CH1 and CH2 can not be selected at the same time. Users can first select
CH1 and then select CH2 after configuring the waveform and parameters of
CH1. If you need to change the parameters of two channel at same time,
please refer to Chapter “Synchronization”.

AD INSTRUMENTS
16 AD8660 Series User’s Manual
Select Waveform
AD8660 can output Function/Arbitrary Waveform including:
l Sine
l Square
l Rectangle
l Triangle/Ramp
l Rise Sawtooth
l Fall Sawtooth
l Lorenz Pulse
l Multitone
l Noise
l Electrocardiogram (ECG)
l Trapezoidal Pulse
l Sinc Pulse
l Narrow Pulse
l Gauss White Noise
l Step Triangle
l Positive Step
l Inverse Step
l Positive Exponent
l Inverse Exponent
l Positive Falling Exponent
l Inverse Falling Exponent
l Positive Logarithm
l Inverse Logarithm
l Positive Falling Logarithm
l Inverse Falling Logarithm
l Linear FM
l AM
l FM
l Positive Half Wave
l Negative Half Wave
l Positive Half Wave
Rectification
l Negative Half Wave
Rectification
l User-defined waveform
Press WAVE to change waveform selected. Or rotate ADJ Knob under waveform
switching status to change waveform. The waveform diagram displays on the
screen. Pressing the knob can change to arbitrary waveform directly when
choosing waveform. At start-up Sine is selected by default. (Users can also
configure start-up waveform. Please check Chapter “Save and Load”.
Waveforms
Sine
Square
Rectangle
Triangle
Sawtooth
Arbitrary
Function Name
SINE
SQUR
Rectangle
TRGL
Ramp
Arb
Parameters
Frequency
√
√
√
√
√
√
Amplitude
√
√
√
√
√
√
Offset
√
√
√
√
√
√
Phase
√
√
√
√
√
√
Duty Cycle
√
Note: Arbitrary waveforms can be edited and downloaded from PC software
provided by AD INSTRUMENTS. The relevant software and driver can be
downloaded from our website: www.AD INSTRUMENTS.com .

AD INSTRUMENTS
AD8660 Series User’s Manual 17
Set Frequency
Frequency is one of the most important parameters of waveforms. For
different instrument models and waveforms, the setting ranges of frequency are
different. For detailed information, please refer to “Frequency” in “Specifications”.
The default frequency is 10kHz.
Press FREQ button to highlight value of Frequency. Then use Arrow
buttons and ADJ Knob to set the value. Press Arrows button to move the cursor
and rotate ADJ Knob to set the value.
Under setting frequency status, press ADJ Knob to change frequency units
among MHz, KHz, Hz, mHz, μHz.

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18 AD8660 Series User’s Manual
Set Amplitude
The amplitude setting range is limited by the “Attenuation” and “Frequency”
settings. Please refer to “Output Characteristics” in “Specifications”. The
default value is 5Vpp.
Press AMPL button to highlight amplitude value. Then use Arrows button
and ADJ Knob to set the value. Press Arrows button to move the cursor and rotate
ADJ Knob to set the value.
Key Points：
1．What’s the difference of amplitude in Vpp and the corresponding value in
Vrms?
Answer:
Vpp is the unit for signal peak-peak value and Vrms is the unit for signal effective value.
The default unit is Vpp.
Note：
For different waveforms, the relation between Vpp and Vrms is different. The
relation of the two units is as shown in the figure below (take sine waveform as
an example).
According to the figure above, the conversion relation between Vpp and Vrms
fulfills the following equation:
Vpp = 2 Vrms
For example, if the current amplitude is 5Vpp, For sine waveform, the converted
value is 1.768Vrms.
2