Rigol DG3121A, DG3101A, DG3061A User guide

User’ Guide RIGOL

Publication number UGB03102-1110 Oct. 2008

DG3000 Series Function/Arbitrary Waveform Generator

DG3121A/DG3101A/DG3061A

RIGOL

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 © 2006 RIGOL Technologies, Inc. All Rights Reserved  RIGOL products are protected by patent law in and outside of P.R. China.  Information in this publication replaces all previously corresponding material.  RIGOL Technologies, Inc. reserves the right to modify or change part of or all

the specifications and pricing policies at company’s sole decision.

NOTE: RIGOL is registered trademark of RIGOL Technologies, Inc.

User’s Guide for DG3000 Series

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II

Safety Notices

Review the following safety precautions carefully before operating the instrument to avoid any personal injury or damage to the instrument or products connected to it.

To avoid the potential hazards, it is necessary to use the instrument in the manner specified in this user guide.

The instrument should be serviced only by qualified personnel.

Avoid Fire or Personal Injury

Use proper power line. Only the special power line of the products approved by

the State should be used.

Insert or draw properly. Do not insert draw when the probe and the testing lead are connected with the power.

Ground the instrument. This generator is grounded through the protective terra conductor of the power cord. To avoid electric shock, the grounding conductor must be connected to the earth ground. Make sure that the instrument is properly grounded before connecting the input or output terminals.

Observe All the Ratings of the Terminal. To avoid fire or shock, observe all the ratings and symbols that marked on the instrument. Read the user guide carefully before making connections to the instrument.

Do not operate without Covers. Do not operate your generator with covers or panels removed.

Avoid Circuit or Wire exposed. Do not touch the exposed connections or components when the power is on.

Do not operate with suspected failures. If you suspect there is damage with this product, you have it inspected by qualified service personnel authorized by RIGOL before further operations.

User’s Guide for DG3000 Series

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Provide Proper Ventilation.

Do not operate in wet/damp conditions.

Do not operate in an explosive atmosphere.

Keep the product’s surfaces clean and dry.

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User’s Guide for DG3000 Series

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!

Hazardous Voltage

Refer to the Instructions

Protective Earth Ground

Earth Ground

Chassis Ground

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Safety Terms and Symbols

Terms in this guide. These terms may appear in this manual:

WARNING: Warning statements indicate the conditions or practices that could result in injury or loss of life.

CAUTION: Caution statements indicate the conditions or practices that could result in damage to this product or other property.

Terms on the product. These terms may appear on the product:

DANGER indicates an injury or hazard that may be immediately happen.

WARNING indicates an injury or hazard that may be not immediately happen.

CAUTION indicates that a potential damage to the instrument or other property

might occur.

Symbols on the product. These symbols may appear on the instrument:

User’s Guide for DG3000 Series

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The Introduction of DG3000 Series

The book covers the following 3 types of DG3000 Series Function/ Arbitrary Waveform Generators: DG3121A、DG3101A、DG3061A.

RIGOL DG3000 Series Function/ Arbitrary Waveform Generator adopt the direct digital synthesizer (DDS) technology, which can provide stable, high-precision, pure and low distortion sine signal. Its combination of excellent system features, easiness in usage and versatile functions makes this generator a perfect solution for your job now and in the future.

DG3000 Series Function/ Arbitrary Waveform Generator have clear and simple Front-Panel. The user-friendly panel layout and instructions, versatile terminals, direct graph interface, built-in instructions and help system has greatly simplified the operation process, with the help of which, users do not have to spend a great deal of time learning and familiarizing the operation of the generator before they can use it proficiently. The built-in AM, FM, PM, and FSK modulation functions generate modulated waveform at ease, without the help of a separate modulating source. USB I/O is a standard accessory, while LAN and GPIB are Optional. Remote instructions meet the SCPI specification requirements.

From the characteristics and specifications given below, you will understand how DG3000 can satisfy your measurement requirements.

 16+2 channels digital output module (Optional) together with the analogue

channel can rebuild the most commonly used mixed signal in daily practice.

 DDS technology provides precise, stable and low distortion output signal.  3.8’ QVGA color LCD display.  300MSa/s sampling rate, 14-bit resolution.  Frequency characteristics:

Sine: 1µHz to 120 MHz Square: 1µHz to 60 MHz Ramp: 1µHz to 1 MHz Pulse: 500µHz to 30MHz White Noise：50MHz bandwidth (-3dB) Arbitrary：1μHz to 25MHz

 10 standard waveforms:

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Sine, Square, Ramp, Pulse, Noise, Sinc, Exponential Rise, Exponential Fall, Cardiac and DC.

 Self-defined arbitrary waveform.  Multiple modulation function, various modulated waveform: AM, FM, PM, FSK,

PWM, Sweep and Burst.

 Multiple I/O: External Modulation Source, External 10 MHz Reference Input,

External trigger source, waveform output, synchronous signal output, Internal 10 MHz Reference output.

 Support USB storage device. Software Updating could also be performed using

USB devices.

 Utmost 1M sample points of internal waveform depth, which can rebuild or

simulate any complex waveform.

 Remote control is realized using the LAN.

Support 10/100M LAN. Users can remotely visit and control signal generation through web browser.

 Multiple interfaces: USB Host & Device, RS-232, GPIB (IEEE-488), LAN.  Support the seamless connection of DS1000 Series Digital Oscilloscopes; can

directly read and rebuild the stored waveform in the oscilloscopes.

 Graph interface which shows the signal setting directly.  10 languages user interface and built-in help system.  Support Chinese/ English Input.

Note:

All the specifications described in this guide are according to DG3121A, if you need to know the particular specifications about the other type, please see “Specifications” in Chapter 5.

User’s Guide for DG3000 Series

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Content

Safety Notices ........................................................................................... II

The Introduction of DG3000 Series ............................................................. V

Chapter 1 Getting Started ................................................................... 1-1

General Inspection .................................................................................. 1-2

Handle Adjustment ................................................................................. 1-3

The Front/Rear Panel .............................................................................. 1-4

To Set a Waveform ................................................................................. 1-8

To Set Modulate/ Sweep/Burst ................................................................ 1-12

To Set Trigger/Output ............................................................................ 1-14

To Use Digital Input ............................................................................... 1-15

To Use Store/Utility/Help Function ........................................................... 1-16

Chapter 2 Operating Your Generator .................................................. 2-1

To Set Sine Signals ................................................................................. 2-2

To Set Square Signals ............................................................................. 2-7

To Set Ramp Signals .............................................................................. 2-10

To Set Pulse Signals ............................................................................... 2-13

To Set Noise Signals .............................................................................. 2-17

To Set Arbitrary Signals .......................................................................... 2-19

To Generate the Modulated Waveform .................................................... 2-32

To Generate Sweep ............................................................................... 2-42

To Generate Burst .................................................................................. 2-44

To Store and Recall ................................................................................ 2-48

To Set the Utility Function ...................................................................... 2-62

How to Use the Built-in Help System ....................................................... 2-89

Chapter 3 Application & Examples ...................................................... 3-1

Example 1: To Generate a Sine Wave ....................................................... 3-2

Example 2: To Generate a Square Wave ................................................... 3-3

Example 3: To Generate a Ramp Wave .................................................... 3-5

Example 4: To Generate a Pulse Wave ..................................................... 3-7

Example 5: To Generate a Noise Wave ..................................................... 3-9

Example 6: To Generate an Arbitrary Waveform ....................................... 3-10

Example 7: To Create an Arbitrary Waveform .......................................... 3-12

Example 8: To Generate an AM Waveform ............................................... 3-14

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Example 9: To Generate an FSK Waveform ............................................. 3-16

Example 10: To Generate a PWM waveform ............................................ 3-18

Example 11: To Generate Linear Sweep .................................................. 3-20

Example 12: To Generate a Burst Waveform ........................................... 3-22

Chapter 4 Prompt messages & troubleshooting ..................................4-1

Prompting Message ................................................................................. 4-1

Troubleshooting .................................................................................... 4-17

Chapter 5 Specifications ......................................................................5-1

Specifications .......................................................................................... 5-2

General Specifications .............................................................................. 5-7

Chapter 6 Appendix ..............................................................................6-1

Appendix A: DG3000 Series Accessories .................................................... 6-1

Appendix B: Warranty.............................................................................. 6-2

Appendix C: General Care and Cleaning .................................................... 6-3

Appendix D: Contact RIGOL .................................................................... 6-4

Index ...................................................................................................... 6-I

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Chapter 1 Getting Started

This chapter covers the following topics:

 General Inspection

 Handle Adjustment

 The Front/Rear Panel

 To Set a Waveform

 To Set Modulate/ Sweep/Burst

 To Set Trigger/Output

 To Use Digital Input

 To Use Store/Utility/Help Function

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General Inspection

When you get a new DG3000 Series Function/ Arbitrary Waveform Generator, you are suggested to take the following steps to inspect the instrument.

1. Inspect the shipping container for damage.

If there are damages in the packing or foam, keep them until the whole machine and the accessories passing the electric and mechanical testing.

2. Check the accessories.

Accessories supplied with the instrument are listed in chapter 6 "Appendix A: DG3000 Series Accessories". If the contents are incomplete or damaged, please notify your RIGOL Sales Representative.

3. Inspect the instrument.

In case any mechanical damage or defect, or if the instrument does not operate properly or pass performance tests, notify your RIGOL Sales Representative. If the shipping container is damaged, or the cushioning materials show signs of stress, notify the carrier as well as your RIGOL sales office. Keep the shipping materials for the carrier’s inspection. RIGOL offices will arrange for repair or replacement at RIGOL’s option without waiting for claim settlement.

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Handle Adjustment

To adjust the handle position of DG3000 Function/ Arbitrary Waveform Generator, please grip the handle by the sides and pull it outward. Then, make the handle rotate to the desired position. The operating methods are shown in the figure 1-1.

Figure 1-1 Adjust the handle

Figure 1-2 The Viewing Position and Carrying Position

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The Front/Rear Panel

When you get a new DG3000 Series Function/ Arbitrary Waveform Generator, first you need to clear 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.

The DG3000 Series Function/ Arbitrary Waveform Generator has clear and simple front panel. See figure 1-3 and 1-4. The Front Panel has a knob and functional keys. The 5 blue grey buttons on the right side of the screen are menu buttons (named F1 to F5 from up to down) with the help of which, you can enter different functions menu or have direct specific applications. The signal input and output interfaces are set at the rear panel which can help generating multiple arbitrary waveforms. The various BUS interfaces can meet the need of the multiple interface communications.

Figure 1-3 The Front Panel of DG3000 Series

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Figure 1-4 Front Panel of DG3000 Series

Figure 1-5 Rear Panel of DG3000 Series

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Parameter

Name

Reading

Unit

Parameter

Value

Operation Menu:

Different functions

have different menus

Waveform

display

window

Parameter

Display and

editingWindow

Figure 1-6

The Display Interface (Sine Wave is the default display signal)

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Character definitions in this User Manual：

The signs for buttons in this book 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 Sine, which represents the transparent functional key with Sine on it on the front panel, while the menu buttons are represented by darkened words such as Freq , which means the “Frequency” option in the Sine menu.

Note：The main Output and Sync Channels are located in the front panel,

which only allow signal output. If they are used as signal input channels, they will be burned and lead to instrument malfunction.

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To Set a Waveform

On the operation panel, there is a set of buttons with waveform icon. See figure 1-7. The exercise below will help you familiarize with the waveform selection settings.

Figure 1-7 The Waveform Selection Buttons

1. Press Sine button and the waveform window will display sine waveform. DG3000 Series Generator can generate Sine signal with a frequency from 1μHz to 120MHz. By setting Frequency/Period, Amplitude/High Level, Offset/Low level, sine signal with different parameters can be generated.

Figure 1-8 The Sine Signal Display Interface

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As shown in figure 1-8, the default signal parameters are: 1kHz Frequency, 5.0Vpp Amplitude and 0Vdc Offset.

2. Press Square button, and the waveform window displays square waveform. DG3000 Series Generator can generate Square signal with a frequency from 1μHz to 60MHz and variable duty cycle.

Figure 1-9 The Square Signal Display Interface

As shown in figure 1-9, the default signal parameters are: 1kHz Frequency, 5.0 Vpp Amplitude, 0Vdc Offset and 50% Duty Cycle.

3. Press Ramp button, and the waveform window displays ramp waveform. DG3000 Series Generator can generate Ramp signal with a frequency of from 1μHz to 1 MHz and variable Symmetry.

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Figure 1-10 The Ramp Signal display interface

As shown in figure 1-10, the default signal parameters are: 1kHz Frequency, 5.0 Vpp Amplitude, 0Vdc Offset and 50% Symmetry.

4. Press Pulse button, and the waveform window displays pulse waveform. DG3000 Series Generator can generate Pulse signal with a frequency from 500μHz to 30 MHz and variable Pulse Width and Edge Time.

Figure 1-11 The Pulse Signal display interface

As shown in figure 1-11, the default signal parameters are: 1kHz Frequency, 5.0Vpp Amplitude, 0Vdc Offset, 200μs Pulse Width and 50ns Edge Time.

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1-11

5. Press Noise button, and the waveform window displays noise waveform. DG3000 Series Generator can generate Noise signal with a Band Width up to 50 MHz.

Figure 1-12 The Noise Signal Display Interface As shown in figure 1-12, the default signal parameters are: 5.0Vpp Amplitude and 0Vdc Offset.

6. Press Arb button, and the waveform window displays arbitrary waveform.

DG3000 Series Generator can generate repeatable arbitrary waveform signals with at most 1024K points and 25MHz frequency.

Figure 1-13

The Arbitrary waveform Signal Display Interface As shown in figure 1-13, the default Exponential Rise Signal parameters are: 1kHz Frequency, 5.0 Vpp Amplitude and 0Vdc Offset.

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To Set Modulate/ Sweep/Burst

As shown in figure 1-14, there are three buttons on the front panel, which are used for Modulating, Sweeping and Bursting settings. The instructions below will help you familiarize with the setting of these functions.

Figure 1-14

The Modulate/ Sweep/ Burst button

1. Press Mod button, and the Modulated waveforms will be generated. The modulated waveform can be changed by modifying the parameters such as Type, Internal/ external Modulation, Depth, Frequency, Waveform, etc. DG3000 Series can modulate waveform using AM, FM, FSK, and PM or PWM. Sine, Square, Ramp or Arbitrary waveforms can be modulated (Pulse, Noise and DC can not be modulated).

Figure 1-15

The Modulated Waveform Display Interface

2. Press Sweep button, Sine, Square, Ramp or Arbitrary waveform can be swept (Pulse, Noise and DC can not be swept). In the Sweep Mode, DG3000 Series generate signal with variable frequencies.

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Term Explanation Burst：Output Waveforms with set cycle times

Burst can last for certain times of waveform cycle (N-Cycle Burst) or be controlled by external gated signals (Gated Burst). Burst applies to all kinds of waveforms, but noise can only be used in gated burst. Generally it is called BURST function within every Signal Generator.

Figure 1-16

The Sweep Waveform Display Interface

3. Press Burst button, Burst for Sine, Square, Ramp, Pulse or Arbitrary waveform can be generated.

Figure 1-17 The Burst Waveform Display Interface

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1-14

To Set Trigger/Output

As shown in figure 1-18, there are two buttons on the right side of the operation panel, which are used to set Trigger and Output Control. The instruction below will help you familiarize with these functions.

Figure 1-18

The Trigger/ Output Button

1. Press Trigger Button, choose internal/ external or manual Trigger (Manual Trigger can only be used in Sweep and N-Cycle Burst)

 The default setting for Trigger is “Internal”. In this mode, when the Sweep

or Burst Mode is also selected, the Generator will generate burst continuously. At this time, press Trigger button, the instrument will shift from the “Automatic” Trigger mode into “Manual” Trigger mode.

 When the generator uses the” External” Trigger Mode, if the Sweep or the

Burst Mode is selected, signal will be generated continuously. At this time, press Trigger button, the instrument state will not change, and it will show “The instrument has already been triggered”.

 Every time you press the Trigger button, “Manual” Trigger will start a

sweep or generate a burst. Press the button again, and the generator will be triggered again.

2. Press Output Button, activate or deactivate the output signal. If an overload message is shown, disconnect the external equipment from the output terminals and press Output button, reactivate the output terminal.

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To Use Digital Input

As shown in figure 1-19, there are three sets of buttons on the operation panel, which are direction button, the knob and the keypad. The instruction below will help you familiarize with the Digital Input Function.

（1）direction key （2）keypad （3）knob

Figure 1-19 The Front Panel Digital Input

1. The up and down keys are used to shift parameters and the left and right keys are used to shift digits.

2. Keypad is used to directly set the parameters value.

3. Knob is used to change a signal digit value whose range is 0~9. Clockwise to increase 1.

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Operation Instruction To get help on：

To get help on any key of the front panel, press and hold on that key for 1 second and the help message will appear.

To Use Store/Utility/Help Function

As shown in figure 1-20, there are three buttons on the operation panel, which are used to call the store/recall, utility and help function. The instruction below will help you familiarize with these Functions.

Figure 1-20

The Store/Recall, Utility and Help Button

1. The Store/Recall Button is used to store waveform data and configure information.

2. The Utility Button is used to set the auxiliary system function, change the output configure parameters, interface setting, system setting information or perform the instrument self-test and read the calibration information, etc.

3. The Help Button is used to read the help information.

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Chapter 2 Operating Your Generator

Up to now you have got a brief understanding about DG3000 series with the front/rear panel, every function control area and keys. You should also know how to set your function/ arbitrary waveform generator for your usage. If you are not familiar with these operations, you are suggested to read Chapter One “Getting Started” again.

This chapter covers the following topics:

 Setting Sine Signal ( Sine )

 Setting Square Signal ( Square )

 Setting Ramp Signal ( Ramp )

 Setting Pulse Signal ( Pulse )

 Setting Noise Signal ( Noise )

 Setting Arb Signal ( Arb )

 Output Modulated Signal ( Mod )

 Output Sweep Signal ( Sweep )

 Output Burst Signal ( Burst )

 Trigger ( Trigger )

 Store/Recall ( Store/Recall )

 Utility Setting ( Utility )

 Help System ( Help )

You are suggested to read this chapter carefully so as to understand DG3000 Series Generator‘s versatile waveform setting Functions and more operation methods.

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Operation

Menu:

Control

function

with the

soft keys

Amplitude

Offset

Frequency

Waveform

Display Window

Frequency

Value

Current Parameter

To Set Sine Signals

Press Sine Button to call the Sine operation. The Sine waveform parameters are set by using the Sine operation menu.

The parameters of Sine waveforms are: Frequency/ Period, Amplitude/ High Level, Offset/ Low Level. Different Sine Signals are generated by setting these parameters. The parameter value in the waveform display window is the same as that of in the parameter display window. As is shown in figure 2-1, in the soft key menu, select Freq. Cursor is located in the frequency parameter area in the parameter display window, and users can set the frequency value here. In the waveform display window, the parameter type in the left corner is frequency, the value of which is displayed in shadow.

Figure 2-1 The Sine Parameter Display Interface

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Figure 2-2 Table 2-1 The Menu Explanations of Sine Waveform

Instructions

The parameter type in the top left corner of figure 2-1 is the current parameter, whose value will be displayed in shadow.

Function

menu

Settings

Explanations

Freq/

Period

Set the signal frequency or period; the current parameter will switch at a second press.

Ampl/

High Level

Set the signal Amplitude or High Level; the current parameter will switch at a second press.

Offset/

Low Level

Set the signal Offset or Low Level; the current parameter will switch at a second press.

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Instruction:

When using the keypad to enter the digit, you can use the Left direction button to move the cursor backward and delete or change the value of the previous digit.

Current

Parameter:

Frequency

To Set the Output Frequency/Period

1. Press Sine  Freq , to set the frequency parameter. The frequency shown on the screen when the instrument is powered is the default value or the set value beforehand. When setting the function, if the current value is valid for the new waveform, it will be used sequentially. If you want to set the period for the waveform, press Freq/Period button again, to switch to the Period parameter (The current operation is displayed in inverse color).

2. Input the desired frequency. Use the keypad to input the parameter value directly, and press the corresponding button to select the parameter unit. Or you can use the direction button to select the digit you want to edit, and then use the knob to change its value.

Figure 2-3 Setting the Frequency

User’s Guide for DG3000 Series

Rigol DG3121A, DG3101A, DG3061A User guide

Specifications and Main Features

Frequently Asked Questions

User Manual