Scientific SMG2000 Series User manual

User Manual
Function/Arbitrary Waveform
Generator
SMG2042/SMG2082/SMG2122

Scientific
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Copyright © Scientific All rights reserved.
This instrument contains proprietary information, no part of this manual may be
photocopied, reproduced or translated without any prior written consent.
Information in this manual supersedes all corresponding previous released
material.
Scientific continues to improve products and reserves rights to amend part or all
of the specifications, procedures, equipment at any time without notice.
Rev 1.00/ 0116

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Table of Contents
General Safety Summary ................................................................................5
Introduction of SMG2000 ............................................................................... 7
1 Quick Start ................................................................................................8
1.1 Handle Adjustment ......................................................................9
1.2 The Front/Rear Panel ................................................................. 10
1.3 To Set a Waveform ......................................................................13
1.4 To Set Modulation/Sweep/Burst..................................................17
1.5 To Turn On/Off Output ................................................................19
1.6 To Use Digital Input ....................................................................20
1.7 To Use Common Function Keys .................................................21
2 Front Panel Operations ............................................................................22
2.1 To Set Sine Signal ......................................................................23
2.2 To Set Square Signal..................................................................28
2.3 To Set Ramp Signal....................................................................30
2.4 To Set Pulse Signal ....................................................................32
2.5 To Set Noise Signal ....................................................................36
2.6 To Set DC Signal ........................................................................39
2.7 To Set Arbitrary Signal ................................................................40
2.8 To Set Harmonic.........................................................................51
2.9 To Set Modulation Function ........................................................54
2.9.1 AM........................................................................................55
2.9.2 DSB-AM ...............................................................................58
2.9.3 FM........................................................................................59
2.9.4 PM........................................................................................61
2.9.5 FSK ......................................................................................63
2.9.6 ASK......................................................................................65
2.9.7 PSK......................................................................................66
2.9.8 PWM ....................................................................................67
2.10 To Set Sweep Function...............................................................70
2.11 To Set Burst Function .................................................................74
2.12 To Store and Recall ....................................................................80
2.12.1 Storage System .............................................................81

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2.12.2 File Type ........................................................................82
2.12.3 File Operation ................................................................83
2.13 To Set Utility Function.................................................................86
2.13.1 System Settings .............................................................88
2.13.2 Test/Cal..........................................................................95
2.13.3 Frequency Counter ..................................................... 100
2.13.4 Output ..........................................................................103
2.13.5 CH Copy/Coupling .......................................................105
2.13.6 Remote Interface .........................................................109
2.13.7 Sync Output ................................................................. 114
2.13.8 Clock Source................................................................ 116
2.13.9 To Use the Built-in Help System................................... 117
2.13.10 Overvoltage Protection................................................. 118
3 Examples .............................................................................................. 119
3.1 Example 1: Generate a Sine Waveform ...................................120
3.2 Example 2: Generate a Square Waveform ...............................121
3.3 Example 3: Generate a Ramp Waveform .................................122
3.4 Example 4: Generate a Pulse Waveform..................................124
3.5 Example 5: Generate a Noise ..................................................126
3.6 Example 6: Generate a DC Waveform .....................................127
3.7 Example 7: Generate a Linear Sweep Waveform.....................128
3.8 Example 8: Generate a Burst Waveform ..................................130
3.9 Example 9: Generate an AM Modulation Waveform .................132
3.10 Example 10: Generate a FM Modulation Waveform.................134
3.11 Example 11: Generate a PM Modulation Waveform .................136
3.12 Example 12: Generate a FSK Modulation Waveform ...............138
3.13 Example 13: Generate an ASK Modulation Waveform .............140
3.14 Example 14: Generate an PSK Modulation Waveform .............142
3.15 Example 15: Generate a PWM Modulation Waveform .............144
3.16 Example 16: Generate a DSB-AM Modulation Waveform ........146
4 Troubleshooting .....................................................................................148
4.1 Routine Maintenance & Cleaning..............................................148
4.2 Troubleshooting...................................... .....................................149
5 Service and Support ..............................................................................150

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General Safety Summary
Carefully read the following safety precautions to avoid any personal injuries
or damages to the instrument and any product connected to it. To avoid
potential hazards, please use the instrument as specified.
Only the qualified technician can service the instrument.
Avoid fire or personal Injure.
Use proper power line.
Use only the special power line which approved by local state.
Ground the Instrument.
The instrument is grounded 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 connecting
its input or output terminals.
Connect the signal wire correctly.
The potential of the signal wire ground is equal to the earth, so do not connect
the signal wire to a high voltage. Do not touch the exposed contacts or
components.
Observe all terminal ratings.
To avoid fire or electric shock, please observe all ratings and sign instruction
on 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 the product is damaged, please let a qualified service
personnel check it.
Avoid circuit or wire exposure.
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.

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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 that a potential damage to the instrument or other
property might occur.
Symbols used on the instrument. Symbols may appear on the instrument:
Hazardous Protective Warning Chassis Power
Voltage Earth Ground Ground Switch

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Introduction of SMG2000
The manual covers the following 3 models of SMG2000 Series
Function/Arbitrary Waveform Generators: SMG2042, SMG2082 and
SMG2122.
SCIENTIFIC‘s SMG2000 is a series of dual-channel function/arbitrary
waveform generators with specifications of up to 120MHz maximum
bandwidth,
1.2GSa/s sampling rate and 16-bit vertical resolution. The proprietary TrueArb
& EasyPulse techniques help to solve the weaknesses inherent in traditional
DDS generators when generating arbitrary, square and pulse waveforms.
Using these techniques the SMG2000 provides users with a variety of high
fidelity, low jitter signals in order to meet the growing requirements for a
multitude of complex applications.
Key Features
Dual-channel, 120MHz maximum bandwidth, 20Vpp maximum output
amplitude, high fidelity output with 80dB dynamic range
High-performance sampling system with 1.2GSa/s sampling rate and
16-bit vertical resolution. No detail in your waveforms will be lost
Innovative TrueArb technology, based on a point-by-point architecture,
supports any 8pts~8Mpts Arb waveform with a sampling rate in range of
1 µ Sa/s~75MSa/s
Innovative Easy Pulse technology, capable of generating lower jitter
Square or Pulse waveforms, brings a wide range and extremely high
precision in pulse width and rise/fall times adjustment
Plenty of analog and digital modulation types: AM、DSB-AM、FM、PM、
FSK、ASK 、PSK and PWM
Sweep and Burst function
High precision Frequency Counter
Standard interfaces: USB Host, USB Device（USBTMC）, LAN（VXI-11）
Optional interface: GPIB
4.3” touch screen display for easier operation

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1 Quick Start
This chapter covers the following topics:
Handle Adjustment
The Front/Rear Panel
To Set a Waveform
To Set Modulation/Sweep/Burst
To Turn On/Off Output
To Use Digital Input
To Use Common Function Keys

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1.1 Handle Adjustment
To adjust the handle position of SMG2000, please grip the handle by the
sides and pull it outward. Then, make the handle rotate to the desired position.
Figure 1-1 Viewing Position and Carrying Position

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1.2 The Front/Rear Panel
When you get a new SMG2000, first you need to understand how to operate the
front/rear panel correctly. This chapter will make a brief introduction and
description for the operation and functions of the front/rear panel.
Front Panel
SMG2000 has a clear and simple front panel which includes 4.3 inch touch
screen, menu softkeys, numeric keyboard, knob, function keys, arrow keys,
and channel control area, etc.
Touch Screen Display Numeric Keyboard Knob
USB
Host
Arrow
Keys
Power
Key
Menu
Softkeys
Function
Keys
Channel
Control
Figure 1-2 Front Panel of SMG2000

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Rear Panel
The rear panel provides multiple interfaces, including Counter, 10MHz In/Out,
Aux In/Out, LAN, USB Device, Earth Terminal and AC Power Supply Input.
10 MHz Clock Input/Output
Aux
Counter In/Out Earth Terminal
LAN Interface USB Device AC Power Supply
Input
Figure 1-3 Rear Panel of SMG2000

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Touch Screen Display
SMG2000 can only display parameters and waveform of one channel at a time. The
picture below shows the interface when CH1 chooses sine waveform. The information
displayed may vary depending on the function selected.
The entire screen of the SMG2000 is a touch screen. You can use your figure or touch
pen to control the instrument. Most functions and selections can be chosen using the
touch screen in a similar manner to the front panel keys and knob.
Channel 1
Information
Channel 2
Information
Waveform
Display
Waveform
Parameters
Channel
Parameters
Menu
Figure 1-4 Touch Screen Display

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1.3 To Set a Waveform
Press Waveforms to enter the menu as Figure 1-5 shows. The exercise below
will help you be familiar with the waveform selection settings.
Figure 1-5 Waveform Selections
1. Press Waveforms key and then press Sine softkey. The generator can
generate sine signal with frequency from 1µHz to 120MHz. By setting
Frequency/Period, Amplitude/High level, Offset/Low level and Phase, a
sine signal with different parameters can be generated.
Figure 1-6 Sine Display Interface

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2. Press Waveforms key and then press Square softkey. The generator can
generate square signal with frequency from 1µHz to 25MHz and variable
duty cycle. By setting Frequency/Period, Amplitude/High level, Offset/Low
level, Phase and DutyCycle, a square signal with different parameters can
be generated.
Figure 1-7 Square Display Interface
3. Press Waveforms key and then press Ramp softkey. The generator can
generate ramp signal with frequency from 1µHz to 1MHz and variable
symmetry. By setting Frequency/Period, Amplitude/High level, Offset/Low
level, Phase and Symmetry, a ramp signal with different parameters can
be generated.
Figure 1-8 Ramp Display Interface

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4. Press Waveforms key and then press Pulse softkey. The generator can
generate pulse signal with frequency from 1µHz to 25 MHz and variable
pulse width and rise/fall time. By setting Frequency/Period,
Amplitude/High level, Offset/Low level, PulWidth/Duty, Rise/Fall and
Delay, a pulse signal with different parameters can be generated.
Figure 1-9 Pulse Display Interface
5. Press Waveforms key and then press Noise softkey. The generator can
generate noise with bandwidth from 20MHz to 120MHz. By setting Stdev，
Mean and Bandwidth, noise with different parameters can be generated.
Figure 1-10 Noise Display Interface

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6. Press Waveforms key and then press Page 1/2, last press the DC softkey.
The generator can generate DC signal with level up to ±10V into HighZ
load or ±5V into 50Ωload.
Figure 1-11 DC Display Interface
7. Press Waveforms key and then press Page 1/2, last press the Arb softkey.
The generator can generate repeatable arbitrary waveform signals with
length from 8 to 8M points and frequency up to 20MHz. By setting
Frequency/Period, Amplitude/High level, Offset/Low level, Phase and Arb
Mode, an arbitrary signal with different parameters can be generated.
Figure 1-12 Arbitrary Waveform Display
Interface

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1.4 To Set Modulation/Sweep/Burst
As shown in Figure 1-13, there are three keys on the front panel, which are
used for modulation, sweep and burst settings. The instructions below will help
you be familiar with these functions.
Figure 1-13 Modulate/Sweep/Burst Key
1. Press Mod, the Modulation function will be enabled.
The modulated waveform can be changed by modifying the parameters such
as Type, Source, AM Depth, AM Freq, Shape, etc. SMG2000 can modulate
waveforms using AM, FM, PM, ASK, FSK, PSK, PWM and DSB-AM, etc.
Pulse waveforms can only be modulated using PWM. Noise and DC cannot
be modulated.
Figure 1-14 Modulation Display Interface
2. Press Sweep, the Sweep function will be enabled.
Sine, square, ramp and arbitrary waveforms support sweep. In sweep mode,
SMG2000 can generate signal with variable frequency. The available range
of sweep time is from 1ms to 500s. The trigger source could be “ Int erna l” ,
“External” or “Manua l” .

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Figure 1-15 Sweep Waveform Display Interface
3. Press Burst, the Burst function will be enabled.
Burst signal for sine, square, ramp, pulse or arbitrary waveforms can be
generated. Start Phase ranges from 0° to 360°and Burst Period ranges from
1µs to 1000s.
Figure 1-16 Burst Waveform Display Interface

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1.5 To Turn On/Off Output
As shown in Figure 1-17, there are two keys on the right side of the operation
panel, which are used to control output of the two channels. Choose a channel
and press the corresponding Output key, the key backlight will be lighted and
the output will be turned on. Press the Output key again, the key backlight will
be extinguished and the output will be turned off.
Figure 1-17 Output Keys

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1.6 To Use Digital Input
As shown in Figure 1-18, there are three sets of keys on the front panel, which
are arrow keys, knob and numeric keyboard. The instructions below will help
you be familiar with the digital input function.
Figure 1-18 Front Panel Digital Input
1. The numeric keyboard is used to set the parameters value.
2. The knob is used to increase (clockwise) or decrease (counterclockwise)
the current digit when setting parameters
3. When using knob to set parameters, the arrow keys are used to select the
digit to be modified; When using numeric keyboard to set parameters, the
left arrow key is used as a Backspace function.