SIGLENT SM02050-E02B User manual

SDG5000 Series
Function/Arbitrary Waveform Generator
Service Manual
SM02050-E02B

SDG5000 Service Manual I
Guaranty and Declaration
Copyright
SIGLENT TECHNOLOGIES CO., LTD. All Rights Reserved.
Trademark Information
SIGLENT is the registered trademark of SIGLENT TECHNOLOGIES CO., LTD
Declaration
⚫SIGLENT products are protected by patent law in and outside of P.R.C.
⚫SIGLENT reserves the right to modify or change parts of or all the
specifications or pricing policies at company’s sole decision.
⚫Information in this publication replaces all previously corresponding
material.
⚫Any way of copying, extracting or translating the contents of this manual is
not allowed without the permission of SIGLENT.
⚫SIGLENT will not be responsible 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.
Product Certification
SIGLENT guarantees this product conforms to the national and industrial
standards in china as well as the ISO9001: 2008 standard and the ISO14001:
2004 standard. Other international standard conformance certification is in
progress.

II SDG5000 Service Manual
General Safety Summary
Carefully read the following safety precautions to avoid person injury and
prevent damage to the instrument or any products connected to it. To avoid
potential hazards, please use the instrument as specified.
Only qualified technician should perform service procedures
Use Proper Power Line
Use only the special power line of the instrument that approved by local state.
Ground the Instrument
The instrument grounds through the protective terra conductor of the power
line. To avoid electric shock, the ground conductor must be connected to the
earth. Make sure the instrument is grounded correctly before connect its input
or output terminals.
Connect the Signal Wire correctly
The potential of the signal wire is equal to the earth, so do not connect the
signal wire to a high voltage. Do not touch the exposed contacts or
components.
Look Over All Terminals’ Ratings
To avoid fire or electric shock, please look over all ratings and sign instruction
of the instrument. Before connecting the instrument, please read the manual
carefully to gain more information about the ratings.
Do not Operate with Suspected Failures
If you suspect that there is a damage of the instrument, please let a qualified
service personnel check it.
Avoid Circuit or Components Exposed
Do not touch exposed contacts or components when the power is on.
Do not Operate in Wet/Damp conditions
Do not Operate in an Explosive Atmosphere
Keep the Surface of the Instrument Clean and Dry

SDG5000 Service Manual III
Safety Terms and Symbols
Terms used on the instrument. Terms may appear on the instrument:
DANGER: Indicates an injury or hazard that may immediately happen.
WARNING: Indicates an injury or hazard that may not immediately happen.
CAUTION: Indicates a potential damage to the instrument or other property
that might occur.
Symbols used on the instrument. Symbols may appear on the instrument:
Hazardous Protective Warning Earth Ground Power
Voltage Earth Ground Switch

IV SDG5000 Service Manual
Overview for the Document
The document is for SDG5000 series arbitrary waveform generator, which will
be mostly written as generator for short in the following text. The main contents
described in this manual are:
SDG5000 Series Generator at a glance
This part introduces the main technology characteristics for SDG5000
generator.
The Front Panel at a glance
This part introduces briefly all the buttons and the knob on the front panel.
The Rear Panel at a glance
This part introduces all the ports for easy communication on the rear panel.
Specification
Chapter 1 lists the generator’s specifications.
Quick Start
Chapter 2 prepares the generator for use and helps you get familiar with a few
of its front-panel features.
Performance Verification Test
Chapter 3 provides performance verification test for the generator.
Assembly Procedures
Chapter 4 provides disassembly procedures for you to get an understanding of
the structure of the generator, thus to install or replace some needed modules,
or troubleshoot faults you encounter while operating it.
Troubleshooting
Chapter 5 provides troubleshooting procedures for the internal main board and
power supply board, as well as the quick guide for general troubles. Before any
operation, you should read the ESD Precautions to avoid personal injuries or
damages to the generator
Maintenance
Chapter 6 provides information on maintenance, daily care and unpacking
inspection of the instrument. The contact information is attached in the end in
case of some unsolvable troubles you encounter.

SDG5000 Service Manual V
Convention for the whole Contents
All the description for function and performance in this document are according
to SDG5162 series generator, and apply to generator of the other types. The
SDS5000 series contains the following types:
Type
Analog Bandwidth
Channel
SDG5082
80 MHz
2
SDG5122
120 MHz
2
SDG5162
160 MHz
2

SDG5000_ServiceManual_SM0205
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VI
SDG5000 Series at a Glance
SDG5000 Series adopt the direct digital synthesis (DDS) technology, which
can provide stable, high-precision, pure and low distortion signals. Its
combination of excellent system features, easiness in usage and versatile
functions makes this generator a perfect solution for your testing now and in
the future.
Characteristics
Reading the characteristics and specifications given below, you will
understand how SDG5000 can satisfy your requirements.
⚫DDS technology provides precise, stable and low distortional output signal.
⚫4.3inch’TFT color LCD display.
⚫500MSa/s sampling rate, 14-bit resolution.
⚫Frequency characteristics:
Sine: 1μHz to 160 MHz
Square: 1μHz to 50 MHz
Ramp: 1μHz to 4MHz
Pulse: 1μHz to 40MHz
White Noise: 100MHz bandwidth (-3dB)
Arbitrary: 1μHz to 40MHz
⚫5 standard waveforms: Sine, Square, Ramp, Pulse, Noise.
⚫Self-defined arbitrary waveform.
⚫Multiple modulation function, various modulated waveform: AM, DSB-AM,
FM, PM, ASK, FSK, PWM, Sweep and Burst.
⚫Multiple I/O: external modulation source, external 10 MHz reference input,
external trigger source, waveform output, synchronous signal output.
⚫Support USB storage device. Software updating could also be performed
using USB devices.
⚫Up to 512k sample points of internal waveform depth, which can rebuild or

SDG5000_ServiceManual_SM02050-E02B.doc
VII
simulate any complex waveform.
⚫Remote control is realized using the USB cable.
⚫Multiple interfaces: USB host & device. USB-GPIB (IEEE-488) and LAN
(option).
⚫Support the seamless connection with SIGLENT Series Digital
Oscilloscopes; Being able to directly read and rebuild the stored waveform
in the oscilloscopes.
⚫2 languages（English and Chinese）user interface and built-in help system.
Note: All the specifications described in this manual are according to
SDG5162.

SDG5000_ServiceManual_SM0205
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VIII
The Front Panel at a Glance
No.
Description
No.
Description
1
Power Switch
7
Universal Knob
2
LCD Display
8
Numeric Keypad
3
Menu Operation
9
Waveform Key
4
Function Keys
10
Type
5
Output Control
11
Logo
6
Direction Keys
12
USB Host
2345
11 10 987
6
1
12

SDG5000_ServiceManual_SM02050-E02B.doc
IX
The Front Panel Display at a Glance
Figure1 Display Interface (Sine Wave is the default waveform)
Here are the character definitions in this Service Manual:
The signs for buttons in this manual are the same as the panel buttons. Please
note that, the signs for the functional buttons on the operation panel are
represented by squared words, such as Waveforms, which represents the
transparent functional key with Sine on it on the front panel, while the menu
buttons are represented by brighten words such as Frequency, which means
the frequency option in the Sine menu.
Function
Status
Channel 1 information
Channel 2 information
Waveform
Parameters
Waveform
Display
Waveform type
operational key

SDG5000_ServiceManual_SM0205
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X
The Rear Panel at a Glance
1. Ext Trig/Gate/FSK/Burst connector
2. 10MHz Output connector
3. USB Device connector
4. Power Socket
5. 10MHz Input connector
6. Sync Output connector
7. Modulation Input connector
WARNING: For protection from electric shock, the grounding power cord must
not be defeated. If only a two-contact electrical outlet is available, connect the
instrument’s chassis ground screw (see above) to a good earth ground.
65
1234
7

SDG5000_ServiceManual_SM02050-E02B.doc
XI
Contents
Guaranty and Declaration.......................................................................................................... I
General Safety Summary ..........................................................................................................II
Safety Terms and Symbols......................................................................................................III
Overview for the Document.....................................................................................................IV
SDG5000 Series at a Glance....................................................................................................VI
The Front Panel at a Glance.................................................................................................VIII
The Rear Panel at a Glance ......................................................................................................X
Specification..................................................................................................................................1
Specifications........................................................................................................................1
General Specifications........................................................................................................7
Quick Start.....................................................................................................................................8
Prepare the Generator for Use..........................................................................................9
Adjust the carrying Handle..............................................................................................10
Set the Output Frequency................................................................................................11
Set the Output Amplitude.................................................................................................13
Set the DC offset ................................................................................................................14
Set the Duty Cycle of a Square Wave ...........................................................................15
Set the Symmetry of a Ramp Wave...............................................................................16
Generate a Pulse Waveform............................................................................................17
Generate a Noise Waveform............................................................................................19
Set the DC Voltage.............................................................................................................21
Output a Built-In Arbitrary Waveform ...........................................................................22
Use the Built-In Help System ..........................................................................................23
Performance Verification Test................................................................................................24
Recommended Test Equipment .....................................................................................24
Test Considerations...........................................................................................................24
Performance Verification Test.........................................................................................25
DC Output Verification..............................................................................................26
AC Amplitude Verification........................................................................................27
Frequency Response Verification..........................................................................28
Security Consideration.....................................................................................................30
List of Modules...................................................................................................................31
Required Tools....................................................................................................................31
Disassembly Procedures.................................................................................................31
A view of the whole Instrument......................................................................................32
Removing the Handle........................................................................................................33
Removing the Metal Shell and Rear Cabinet...............................................................34
Removing the Front Cabinet...........................................................................................35
Removing the Display Module........................................................................................36

SDG5000_ServiceManual_SM0205
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XII
Removing the Main Body.................................................................................................37
Troubleshooting.........................................................................................................................39
ESD Precautions ................................................................................................................39
Required Equipment..........................................................................................................39
Channel Board Drawing ...................................................................................................40
Main Board Drawing..........................................................................................................41
Check the Power Supply..................................................................................................42
Check the Channel Board................................................................................................44
Voltage Checking .......................................................................................................44
FPGA Checking...........................................................................................................45
Check the Main Board.......................................................................................................46
Voltage Checking .......................................................................................................46
Mainboard Clock Checking......................................................................................46
DSP/CPLD Checking .................................................................................................47
Quick Guide for General Failures ..................................................................................48
Maintenance ................................................................................................................................49
Maintain Summary.............................................................................................................49
Repackaging for Shipment..............................................................................................50
Contact SIGLENT ...............................................................................................................51

SDG5000 Service Manual
1
Specification
These specifications apply to SDG5000 series Arbitrary Waveform Generator.
To verify that an oscilloscope meets specifications, it must first meet the
following conditions:
⚫The generator must have been operating continuously for fifteen minutes
within the specified operating temperature.
⚫You must perform the Self Adjust operation, accessible through the Utility
menu, if the operating temperature changes by more than 5 °C.
⚫The oscilloscope must be within the factory calibration interval of one year.
Specifications
Model
SDG5082
SDG5122
SDG5162
Maximum output frequency
80MHz
120MHz
160MHz
Output channels
2
Sample rate
500MSa/s
Arbitrary waveform length
CH1: 16kpts , CH2: 512kpts
Frequency resolution
1μHz
Vertical resolution
14 bits
Modulation
AM, DSB- AM, FM, PM, FSK, ASK, PWM, Sweep, Burst
Frequency counter
Frequency range：100mHz ~ 200MHz
Standard interface
USB Host & Device
Dimension
W x H x D=261mm x 105mm x 344mm

SDG5000 Service Manual
2
Frequency Specification
Model
SDG5082
SDG5122
SDG5162
Waveform
Sine, Square, Ramp, Pulse, Noise, Arbitrary waveform
Sine
1μHz ~ 80MHz
1μHz ~120MHz
1μHz ~ 160MHz
Square
1μHz ~ 30MHz
1μHz ~ 40MHz
1μHz ~ 50MHz
Pulse
1μHz ~ 20MHz
1μHz ~ 30MHz
1μHz ~ 40MHz
Ramp
1μHz ~ 2MHz
1μHz ~ 3MHz
1μHz ~ 4MHz
Gaussian Noise
100MHz (-3dB)
Arbitrary waveform
1μHz ~ 20MHz
1μHz ~ 30MHz
1μHz ~ 40MHz
Resolution
1μHz
Accuracy
within 1 year ±2ppm 0°C ~ 55°C
Square Wave
Rise/Fall time（10% ~ 90%）
6ns
Overshoot
< 3%
Duty
Cycle
1μHz ~ 10 MHz
20% ~ 80%
10 MHz（exclude）~ 40 MHz
40% ~ 60%
40 MHz（exclude）~ 50 MHz
50%
Asymmetric（50% Duty Cycle）
1% of Cycle + 5 ns（typical value）
Jitter (cycle to cycle)
< 100ps（typical value, rms）
Pulse Wave
Period
Maximum: 1000000s Minimum: 25 ns
Pulse width
≥12ns, resolution: 100ps
Rise/Fall time（10% ~ 90%）
6ns ~ 6s, resolution: 100ps
Duty Cycle
0.0001% ~ 99.9999%
Overshoot
< 3%
Jitter (cycle to cycle)
< 100ps（typical value, rms）
Sine Wave Spectrum Purity
Harmonic distortion
DC-1 MHz
<-54dBc
1 MHz - 10 MHz
<-46dBc
10 MHz - 100 MHz
<-36dBc
100 MHz - 160 MHz
<-30dBc
Total harmonic waveform distortion
DC ~ 20 kHz
1Vpp <0.2%
Spurious signal（non-harmonic）
DC ~ 1 MHz
< -70dBc
1 MHz ~ 10 MHz
<-70dBc+6dB/spectrum phase
Phase noise
100kHz Offset, –116dBc / Hz（typical value）

SDG5000 Service Manual
3
Ramp Wave
Linearity
< 0.1% of output Peak value
（typical value, 1 kHz, 1Vpp, symmetric 100%）
Symmetry
0% ~ 100%
Arbitrary Waveform
Channel
CH1
CH2
Waveform length
16kpts
512kpts
Vertical resolution
14 bits
14 bits
Sample rate
500MSa/s
500MSa/s
Minimum Rise/Fall time
5ns（typical value）
5ns（typical value）
Jitter（RMS）
2ns（maximum）
2ns（maximum）
Output Characteristics
Channel
CH1
CH2
Amplitude (50Ω)
1mVpp~ 10Vpp（≤40MHz）
1mVpp ~ 10Vpp（≤40MHz）
1mVpp~5Vpp
（40MHz~100MHz）
1mVpp~5Vpp
（40MHz~100MHz）
1mVpp~2.5Vpp
（100MHz~130MHz）
1mVpp~2.5Vpp
（100MHz~130MHz）
1mVpp ~ 1.5Vpp
（130MHz~160MHz）
1mVpp ~ 1.5Vpp
（130MHz~160MHz）
Vertical resolution
（100 kHz sine waveform）
±（0.3dBm+1mVpp）
±（0.3dBm+1mVpp）
Amplitude flatness（based on
100kHz Sine Waveform, 1Vpp）
≤10MHz, ±0.1 dB
≤10MHz, ±0.1 dB
≤60MHz, ±0.2 dB
≤60MHz, ±0.2 dB
≤100MHz, ±0.4 dB
≤100MHz, ±0.4 dB
≤160MHz, ±0.8 dB
≤160MHz, ±0.8 dB
Isolate channel depth
< -80dB
Channel delay
< 1ns
DC
Output characteristic
CH1
CH2
Range（DC）
±5 V（50ohm）
±10 V（high resistance）
±5 V（50ohm）
±10 V（high resistance）
Offset accuracy
±（1%*|setting offset |+1 mV）
±（1%*|setting offset |+1 mV）

SDG5000 Service Manual
4
Waveform Output
Channel
CH1/CH2
Impedance
50Ω (typical value）
Protection
short-circuit protection
Isolation
The BNC connectors for channel output, synchronous and modulation input
are isolated to the Re Rack Earth, and the allowable voltage range is ±
42Vpk
AM/DSB-AM Modulation（CH1/CH2）
Carrier
Sine, Square, Ramp, Arbitrary（except DC）
Source
Internal/External
Modulated wave
Sine, Square, Ramp, Noise, Arbitrary
Modulation depth
0% ~ 120%
Modulation frequency
1mHz~50kHz
FM Modulation（CH1/CH2）
Carrier
Sine, Square, Ramp, Arbitrary（except DC）
Source
Internal/External
Modulation waveform
Sine, Square, Ramp, Noise, Arbitrary
Modulation frequency
1mHz ~ 50kHz
PM Modulation（CH1/CH2）
Carrier
Sine, Square, Ramp, Arbitrary（except DC）
Source
Internal/External
Modulation waveform
Sine, Square, Ramp, Noise, Arbitrary
Modulation frequency
1mHz ~ 50kHz
Phase deviation
0 ~ 360°
FSK Modulation（CH1/CH2）
Carrier
Sine, Square, Ramp, Arbitrary（except DC）
Source
Internal/External
Modulation waveform
50% duty square waveform
Key frequency
1mHz ~ 1MHz
ASK Modulation（CH1/CH2）
Carrier
Sine, Square, Ramp, Arbitrary（except DC）
Source
Internal/External
Modulation waveform
50% duty square waveform
Key frequency
1mHz ~ 1MHz
PWM Modulation (CH1/CH2)
Carrier
Pulse
Source
Internal/External
Modulation waveform
Sine, Square, Ramp, Noise, Arbitrary
Modulation frequency
1mHz ~ 50kHz
Sweep（CH1/CH2）
Carrier
Sine, Square, Ramp, Triangle,Arbitrary (except DC)

SDG5000 Service Manual
5
Type
linear/logarithmic
Direction
Up/ down
Sweep time
1ms ~ 500s ±0.1%
Trigger source
Manual, external, internal
Burst（CH1/CH2）
Waveform
Sine, Square, Ramp, Pulse, Noise, Arbitrary (except DC)
Carrier frequency
2mHz ~ 100MHz
Type
Count（1 ~ 1000000 cycles）, infinite, Gated
Start/Stop phase
0°~ 360°
Internal cycle
1μs ~ 1000s ±1%
Trigger delay
296ns ~ 34s
Gated source
External trigger
Trigger source
Manuel, External or Internal
External Modulation Input
Connector
The rear panel BNC connector, isolated to the Re Rack Earth
Input amplitude
±4.5Vpk=100% modulation, input impedance >5kΩ
The external input voltage can’t be over ±5Vpk, or the instrument will get damaged.
Trigger Input
Connector
The rear panel BNC connector, rack (reference)
Voltage level input
TTL compatible
Slope
Up or down (optional)
Pulse width
> 50 ns
Input impedance
> 5kΩ, DC coupling
Response time
380ns（typical value）
Trigger Output
Connector
The rear panel BNC connector, rack (reference)
Voltage level
TTL compatible
Pulse width
> 60ns（typical value）
Output impedance
50Ω（typical value）
Maximum frequency
1 MHz
SYNC Output
Connector
The rear panel BNC connector, isolated to the Re Rack Earth
Voltage level
TTL compatible
Pulse width
> 50 ns（typical value）
Output impedance
50Ω（typical value）
Maximum frequency
10MHz

SDG5000 Service Manual
6
REFCLK Input(10MHz ~ In)
Connector
The rear panel BNC connector, isolated to the Re Rack Earth and all the
other connectors.
Lock range
10MHz ±50Hz
Signal level
2.3Vpp ~ 3.3Vpp
Lock Time
< 2 s
Input impedance
1KΩ, AC coupling
REFCLK Input(10MHz ~ Out)
Connector
The rear panel BNC connector, rack (reference)
Output frequency
10MHz
Signal level
>1Vpp
Output impedance
50Ω, AC coupling
Frequency Counter
Measurement
Frequency, Period, positive/negative Pulse Width, Duty Cycle
Frequency range
Single Channel: 100mHz ~ 200 MHz
Frequency resolution
6 bits/s
Voltage range and sensitivity(non-modulated signal）
Manual
DC coupling
DC deviation range
±1.5 VDC
100mHz ~ 100 MHz
50mVrms ~ ±2.5V
100 MHz ~ 200 MHz
100mVrms ~ ±2.5V
AC coupling
1 Hz ~ 200 MHz
100mVrms ~ 5Vpp
Pulse Width and Duty
measurement
6Hz ~ 10MHz（80mVrms ~ 5Vpp）
Input adjustment
Input impedance
1 MΩ
Coupling mode
AC/DC
HFR
On/Off
Trigger method
Trigger level range: -3 v ~ 1.8v