RIGOL DG822, DG831, DG821, DG812, DG811 Users guide

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RIGOL

User’s Guide

DG800 Series

Function/Arb itrary Waveform

Generator

Jul. 2018

RIGOL (SUZHOU) TECHNOLOGIES INC.

RIGOL

Guaranty and Declaration

Trademark Information

RIGOL is a registered trademark of RIGOL (SUZHOU) TECHNOLOGIES INC.

Publication Number

UGB11100-1110

Software Version

00.00.01 Software upgrade might change or add product features. Please acquire the latest version of the manual from RIGOL we bsite or contact RIGOL to upgrade the software.

Notices

 RIGOL produ cts are cov ered by P.R.C. and f oreign pa tents, issue d and pendin g.  RIGOL reserves the right to modify or change parts of or all the specifications

and pricing policies at the company’s sole decision.

 Information in this publication replaces all previously released materials.  Information in this publication is subject to change without notice.  RIGOL shall not be liable for either incidental or consequential losses in

connection with the furnishing, use, or performance of this manual, as well as any information contained.

 Any part of th is d ocu ment is f orbi dden to be c opie d, ph otocopied, or rearranged

without prior written approval of RIGOL.

Product Certification

RIGOL guarantees that this product conforms to the national and industrial standards in China as well as the ISO9001:2015 standard and the ISO14001:2015 standard. Other international standard conformance certifications are in progress.

If you have any problem or requirement when using our products or this manual, please contact RIGOL. E-mail: service@rigol.com Website: www.rigol.com

DG800 User's Guide I

RIGOL

Safety Requirement

General Safety Summary

Please review the following safety precautions carefully before putting the instrument into operation so as to avoid any personal injury or damage to the instrument and any product connected to it. To prevent potential hazards, please follow the instructions specified in this manual to use the instrument properly.

Use the BNC output connector properly.

The BNC output connector on the front panel only allows to output the signal but not to input the signal.

Use Proper Power Cord.

Only the exclusive power cord designed for the instrument and authorized for use within the local country could be used.

Ground the Instrument.

The instrument is grounded through t he Protective Earth lead of the power cord. To avoid e lectr ic shock, connect the earth terminal of the power cord to the Protective Earth terminal before connecting any input or output terminals.

Connect the Probe Correctly.

If a probe is used, the probe ground lead must be connected to earth ground. Do not connect the ground lead to hi gh volta ge. Imp roper w ay of connection could resul t in dangerous voltages being present on the connectors, controls or other surfaces of the oscilloscope and probes, which will cause potential hazards for operators.

Observe All Terminal Ratings.

To avoi d fi re or s hock haza rd, observe all ratings an d ma rkers on the i nstrume nt and check your manual for more informatio n abo ut r at ings before connecting the instrument.

Use Proper Overvoltage Protection.

Ensure that no over voltage (su ch as that cause d by a bolt of lightni ng) can reach the product. Otherwise, the operator might be exposed to the danger of an electric shock.

Do Not Operate Without Covers.

Do not operate the instrument with covers or panels removed.

Do Not Insert Objects Into the Air Outlet.

Do not insert objects into the air outlet, as doing so may cause damage to the instrument.

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Use Proper Fuse.

Please use the specified fuses.

Avoid Circuit or Wire Exposure.

Do not touch exposed junctions and components when the unit is powered on.

Do Not Operate With Suspected Failures.

If you suspect that any damage may occur to the instrument, have it inspected by RIGOL authorized personnel before further operations. Any mainte nance, adjustment or replacement especially to circuits or accessories must be performed by RIGOL authorized personnel.

Provide Adequate Ventilation.

Inadequate ventilation may cause an increase of temperature in the instrument, which would cause damage to the instrument. So please keep the instrument well ventilated and inspect the air outlet and the fan regularly.

Do Not Operate in Wet Conditions.

To avoid short circuit inside the instrument or electric shock, never operate the instrument in a humid environment.

Do Not Operate in an Explosive Atmosphere.

To avoid personal injuries or damage to the instrument, never operate the instrument in an explosive atmosphere.

Keep Product Surfaces Clean and Dry.

T o a void dust or moisture from af fecting the pe rformance of the inst rument, keep th e surfaces of the instrument clean and dry.

Prevent Ele c tr o static Imp a ct.

Operate the instrume nt i n an el ectr ostatic dischar ge protectiv e e nvi ron ment to a void damage induced by static discharges. Always ground both the internal and external conductors of cables to relea s e sta t i c before making connections.

Use the Battery Properly.

Do not expose the battery (if available) to high temperature or fire. Keep it out of the reach of children. Improper change of a battery (lithium battery) may cause an explosion. Use the RIGOL specified battery only.

Handle with Caution.

Please handle with care during transportation to avoid damage to keys, knobs, interfaces, and other parts on the panels.

DG800 User's Guide III

RIGOL

WARNING

avoided, will result in serious injury or death.

CAUTION

avoided, could result in damage to the product or loss of important data.

DANGER

It calls attention to an operation, if not correctly performed, could result in injury or hazard immediately.

WARNING

It calls attention to an operation, if not correctly performed, could result in potential injury or hazard.

CAUTION

It calls attention to an operation, if not correctly performed, could product.

Hazardous Voltage

Safety Warning

Protective Earth Terminal

Chassis Ground

Test Ground

Safety Notices and Symbols

Safety Notic e s in this Manua l:

Indicates a potentially hazardous situation or practice which, if not

Safety Terms on the Product:

result in damage to the product or other devices connected to the

Safety Symbols on the Product:

IV DG800 User's Guide

RIGOL

CAUTION

WARNING

supply.

Care and Cleaning

Care

Do not store or leave the instrument where it may be exposed to direct sunlight for long periods of time.

Cleaning

Clean the instrument regularly according to its operating conditions.

1. Disconnect the instrument from all power sources.

2. Clean the external surfaces of the instrument with a soft cloth dampened with mild detergent or water . Avoid havin g any water or o ther objects into the chassis via the heat dissipation hole. When cleaning the LCD, take care to avoid scarifying it.

To avoid damage to the instrument, do not expose it to caustic liquids.

To avoid short-circuit resulting fr om moisture or personal injuries, ensure that the instrument is completely dry before connecting it to the power

Environmental Consideratio ns

The following symbol indicates that this product complies with the WEEE Directive 2002/96/EC.

Product End-of-Life Handling

The equipment may contain substances that could b e harmf ul to the environment or human health. To avoid the release of such substances into the environment and avoid harm to human health, we recommend you to recycle this product appropriately to ensure that most materials are reused or recycled properly. Please contact your local authorities for disposal or recycling information.

You can log in to RIGOL official website (www.rigol.com) to download the latest version of the RoHS-WEEE certification file.

DG800 User's Guide V

RIGOL

DG800 Series Function/Arbitrary

Waveform Generator Overview

As a multi-functional signal generator, DG800 series function/arbitrary waveform generator integrates many instruments into 1, such as function generator, arbitrary waveform generator, noise generator, pulse generator, harmonic generator, analog/digital modulator, and frequency counter. As a multi-functional and portable instrument, it offers you a new choice in education, R&D , produ ction, measure ment, and other industries with its user-friendly to uch screen and high performance at an unprecedented price point.

Main Features:

 Unique SiFi II (Signal Fidelity II) technology: generate the arbitrary waveforms

point by point; recover the signal without distortion; sample rate accurate and adjustable; jitter of all the output wav e f or ms (including Sine, Pulse, et c .) as lo w as 200 ps

 2 Mpts memor y dept h (sta nda rd ); 8 Mpts memory depth (optional) per channel

for arbitrary waveforms

 Optional dual-channel with the same performance, equivalent to two

independent signal sources

 High frequency stability: ±1 ppm; low phase noise: -105 dBc/Hz  Built-in up to 8 orders harmonics ge n erator  Built-in 7 digits/s, 240 MHz bandwidth full featured frequency counter  Up to 160 built-in arbitrary waveforms, covering the common signals in

engineering application, medical electronics, auto electronics, math processing, and other various fields

 Sample rate up to 125 MSa/s, vertical resolution 16 bits  Arbitrary waveform sequence editing function available; arbitrary waveforms

also can be generated through the PC software

 Various analog and digital mo dulati on functions: AM, FM, PM, ASK, FSK, PSK,

and PWM.

 Standard waveform combine function, capable of outputting specified

waveforms combined with the basic waveforms

 Standard channel tracking function, when enabled, all the parameters of both

channels are updated based on users' configur ati on s

 USB HOST&DEVICE interface (standard); USB-GPIB function supporte d  4.3'' TFT color touch screen  RS232, PRBS, and Dualtone outputs supported

VI DG800 User's Guide

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Chapter 1 Quick Start

Introduces the appearance and dimensions of DG800, its front/rear panel, and user interface.

Introduces the main functions and operation methods of DG800.

Chapter 3 Remote Control

Introduces how to control DG800 remotely.

Chapter 4 Troubleshooting

Lists the possible failures and solutions in using DG800.

Chapter 5 Appendix

Provides the information about the options and of DG800.

Model

No. of Channels

Max. Output Frequency

DG812

10 MHz

DG822

25 MHz

DG832

35 MHz

DG811

10 MHz

DG821

25 MHz

DG831

35 MHz

Document Overview

Main Topics in this Manual

Chapter 2 Front Pa nel Operations

accessories list, as well as warranty information

Format Conventions in this Manual

1. Keys:

The keys on the front panel are usually denoted by the format of "Key Name (Bold) + Text Box". For example, Utility denotes the Utility key.

2. Menu Labels:

The menu labels are usually denoted by the format of "Menu Word (Bold) + Character Shading". For example, System Setting.

3. Connectors:

The connectors on the front or rear panel are usually denoted by the format of "Connector Name (Bold) + Squa re B r ackets (Bold)". For example, [Counter].

4. Operation Procedures: "" represents the next step of operation. For example, Utility  System Setting denotes that first press Utility on the front panel, and then tap the System Setting menu label.

Content Conventions in this Manual

1. DG800 series function/arbitrary waveform generator includes the following models: This manual takes DG832 as an example to illustrate the operation methods of the DG800 series.

DG800 User's Guide VII

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2. DG800 series function/arbitrary waveform generator is equipped with two channels (CH1 and CH2). Unless otherwise specified, this manual takes CH1 as an example to introduce the operation met ho ds of the generator. The operation methods of CH2 is the same as that of CH1.

Manuals of this Product

The manuals of this product mainly include the quick guide, user’s guide, programming guide, data sheet, and etc. For the latest version of this manual, download it from the official website of RIGOL (www.rigol.com).

VIII DG800 User's Guide

Contents RIGOL

Contents

Guaranty and Declaration ......................................................................... I

Safety Requirement ................................................................................ II

General Safety Summary ........................................................................... II

Safety Not ices and Symbols ...................................................................... IV

Care and Cleaning .................................................................................... V

Environmental Considerations .................................................................... V

DG800 Series Function/Arbitrary Waveform Generator Overview ......... VI

Document Overview .............................................................................. VII

Chapter 1 Quic k S tart ......................................................................... 1-1

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

Appearance and Dime nsions ................................................................... 1-3

Front Panel Overview ............................................................................. 1-4

Rear Panel Overview .............................................................................. 1-8

To Prepare for Use ................................................................................ 1-11

To Connect to AC Pow e r ................................................................. 1-11

Turn-on Checkout .......................................................................... 1-11

To Set the System Language ........................................................... 1-11

User Interface ...................................................................................... 1-12

To Use the Built-in Help System ............................................................. 1-15

Chapter 2 Front Panel Operations ...................................................... 2-1

To Output Ba sic Waveform ..................................................................... 2-2

To Select Output Channel ................................................................ 2-2

To Select Ba sic Waveform ................................................................ 2-3

To Set F requ ency/Pe riod .................................................................. 2-4

To Set Amplitude/High Le v e l ............................................................ 2-5

To Set Offset/Low Level ................................................................... 2-7

To Set Start Phase .......................................................................... 2-8

To Set Duty Cycle (Square) .............................................................. 2-9

To Set Symmetry (Ramp) ................................................................ 2-10

To Set Pulse Width/Duty Cycle (Pulse) ............................................. 2-11

To Set Rising/Falling Edge (Pulse) .................................................... 2-12

To Enable Channel Output .............................................................. 2-13

Align Phase ................................................................................... 2-14

Example: To Output Sine ................................................................ 2-15

To Output the Arbitrary Waveform .......................................................... 2-17

To Enable Arbitrary Waveforms........................................................ 2-17

To Select the Waveform .................................................................. 2-17

To Set Parameters .......................................................................... 2-22

To Output Harmonic ............................................................................. 2-23

Harmonic Overview ........................................................................ 2-23

DG800 User's Guide IX

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To Set Fundamental Waveform Parameters ...................................... 2-24

To Select Harmonic Type ................................................................ 2-24

To Set Harmonic Order ................................................................... 2-24

To Select Harmonic Amplitude ......................................................... 2-25

To Set Harmonic Phase .................................................................. 2-25

Example: To Output Harmonic ........................................................ 2-25

DC ...................................................................................................... 2-28

To Output Dual-tone Wav e form ............................................................. 2-29

To Output Advanced Waveform ............................................................. 2-30

PRBS ............................................................................................ 2-30

RS232 .......................................................................................... 2-31

Sequence ...................................................................................... 2-32

Modulation .......................................................................................... 2-34

Amplitude Modulation (AM) ............................................................ 2-34

Frequency Modulation (FM) ............................................................ 2-38

Phase Modulation (PM) .................................................................. 2-41

Amplitude Shift Keying (ASK) .......................................................... 2-44

Frequency Shift Keying (FSK) .......................................................... 2-47

Phase Shift Keying (PSK) ................................................................ 2-50

Pulse Width Modulation (PWM) ....................................................... 2-53

Sweep................................................................................................. 2-56

To Enable the Sweep Function ........................................................ 2-56

Sweep Type .................................................................................. 2-56

Sweep Time .................................................................................. 2-58

Return Time .................................................................................. 2-58

Start Frequen cy and Stop Freque ncy ............................................... 2-59

Center Frequency and Freq u ency Span ............................................ 2-59

Sweep Trigger Source .................................................................... 2-60

Marker Freq .................................................................................. 2-61

Start Hold ..................................................................................... 2-62

Stop Hold ..................................................................................... 2-62

Burst .................................................................................................. 2-63

To Enable the Burst Function .......................................................... 2-63

Burst Type .................................................................................... 2-63

Burst Delay ................................................................................... 2-65

Burst Period .................................................................................. 2-66

Idle Level ...................................................................................... 2-66

Burst Trigger Source ...................................................................... 2-67

Gated Polarity ............................................................................... 2-68

Frequency Counter ............................................................................... 2-69

To Enable the Frequency Counter .................................................... 2-69

To Set the Frequency Counter ......................................................... 2-70

Store and Recall ................................................................................... 2-73

Storage System ............................................................................. 2-73

File Type ....................................................................................... 2-74

Categories .................................................................................... 2-74

X DG800 User's Guide

Contents RIGOL

File Operation ................................................................................ 2-75

Seamless Interconnection with Oscilloscope ..................................... 2-79

Channel Setting .................................................................................... 2-81

Output Setting ............................................................................... 2-81

Sync Setting .................................................................................. 2-83

Coupling Setting ............................................................................ 2-85

Waveform Combination .................................................................. 2-89

Common Settings ................................................................................. 2-90

System Setting .............................................................................. 2-90

Interface ....................................................................................... 2-92

System Info ................................................................................... 2-96

Option .......................................................................................... 2-96

Display Setting .............................................................................. 2-96

Print Setting .................................................................................. 2-97

System Utility Function ......................................................................... 2-98

To Restore Preset ........................................................................... 2-98

Channel Copy .............................................................................. 2-102

To Install the Option..................................................................... 2-103

To Lock th e Keyboard ................................................................... 2-105

Chapter 3 Remote Control .................................................................. 3-1

Remote Control via USB ......................................................................... 3-2

Remote Control via LAN ......................................................................... 3-2

Remote Control via GPIB ........................................................................ 3-4

Chapter 4 Troubleshooting ................................................................. 4-1

Chapter 5 Appendix ............................................................................ 5-1

Appendix A: Accessories and Options ...................................................... 5-1

Append i x B: Warranty ............................................................................ 5-2

Index ....................................................................................................... 1

DG800 User's Guide XI

Chapter 1 Quick Guide RIGOL

Chapter 1 Quick Start

This chapter briefly introduces the appearance and dimensions of DG800 series function/arbitrary waveform generator, its front/rear panel, and user inter face.

Contents in this chapter:

 General Inspection  Appearance and Dime nsions  Front Panel Overview  Rear Panel Overview  To Prepare for Use  User Interface  To Use the Built-in Help System

DG800 User's Guide 1-1

RIGOL Chapter 1 Quick Guide

General Inspection

1． Inspect the packaging

If the packa gi ng has be en da m age d, do n ot dis po se t he da m age d pac ka gin g o r cushioning materials until the shipment has been check ed for completeness an d has passed both electrical and mechanical tests.

The consigner or carrier shall be liable for the damage to the instrument resulting from shipment. RIGOL would not be responsible for free maintenance/rework or replacement of the instrument.

2． Inspect the instrument

In case of any mechanical damage, missing parts, or failure in passing the electrical and mechanical tests, contact your RIGOL sales representative.

3． Check the accessories

Please check the accessories according to the packing lists. If the accessories are dam aged or incomplete, please contact your RIGOL sales representative.

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Chapter 1 Quick Guide RIGOL

Appearance and Dimensions

Front View Unit: mm

Side View Unit: mm

DG800 User's Guide 1-3

RIGOL Chapter 1 Quick Guide

It is used to control the output of CH1. It is used to control the output of CH2.

backlight turns off.

1 2 3 4 5 6 7

13 12 11 10 9 8

Front Panel Overview

Figure 1-1 Front Panel

1. Power Key

Turns on or off the generator.

2. Align Key

Performs the phase alignment operation. For details, refer to descriptions in

"Align Phase".

3. CH1 Output Connector

BNC connector, with 50 Ω nominal output impedance. When Output1 is enabled (the backlight turns on), this connector outputs waveforms according to the current co nfiguration of CH1.

4. Channel Control Area

— Press this key to enable the output of CH1, the backlight

turns on. At this time, the [CH1] connector outputs the waveforms according to the current co nfiguration of CH1.

— Press this key ag ain to disable the output of CH1, and the

backlight turns off.

— Press this key to enable the output of CH2, the backlight

turns on. At this time, the [CH2] connector outputs the waveforms according to the current co nfiguration of CH2.

— Press this key ag ain to disable the output of CH2, and the

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Chapter 1 Quick Guide RIGOL

CAUTION

To avoid damages to the instrument, the in put signa l voltage cann ot exceed ±2.5 V.

5. CH2 Output Connector

BNC connector, with 50 Ω nominal output impedance. When Output2 is enabled (the backlight turns on), this connector outputs waveforms according to the current co nfiguration of CH2.

6. Counter Measurement Signal Input Connector

BNC connector, with 1 MΩ input impedance. It is used to receive the signal measured by the counter.

7. Frequency Counter

Enables or disables the frequency counter. — Press this key to enable the frequency counter, and the backlight turns on

and blinks continuously.

— Press this key ag ain to disable the frequency counter, and the backlight

turns off. At this time, the frequency c ounter is disabled.

Note: When the frequency counter is enabled, no waveforms will be output

from the CH2 connector. When the frequency counter is disabled, waveforms are allowed to be output from the CH2 connector.

8. Arrow Key

— It is used to move the curso r to select the digit to be edited when you use

the knob to set the parameters (pressing down the knob can enter the editing mode).

— In the user interface, it is used to move left or right the cursor.

9. Knob

— When you select a menu label in the interfac e, the knob can be used to

move the cursor down (clockwise) or up (counterclockwise).

— It can be used to increase (clockwise) or d ecrease (counterclockwise) the

value marked by the cursor when you use the knob to set the parameters (pressing down the knob can ente r the editing m ode). Press down the k nob again to exit the editing mode.

— It can be used t o select the desire d wave form by mo ving the cursor w ith the

knob when you se lect the w aveform (pressing the ri ght arrow ke y will locate the cursor to the right of the interface). Press down the knob to select the desired waveform .

— When you store or read a file, it can be used to select a storage location or

select a file to be read. Press down the kn ob to unfol d the currently selected directory.

— It can be used to select the desired parameter by moving the cursor with

the knob when you set the common information (pressing the r ight arrow key will locate the cursor to the right of the interface ). Press down the kno b

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RIGOL Chapter 1 Quick Guide

Restores the instrument to its preset state. At most 10 states can

Locks or unlocks the fr ont-pan e l keys and the to uch screen. In

Used for manual trigger.

mode, the generato r outputs the wavef orms continuously. At

It is used to set the utility function parameters and system

Stores or recalls the instrument state or the user-defined

Gets the help information of any front-pan el keys and the help

to select the desired parameter. Then, rotate the knob to modify the

parameter, and press it down again to confirm your modification. — It is used to select the desired configuration type in the Preset interface.

Press down the knob to co nfirm y our selection. At this time, a dialog box is

displayed. Use the knob to select the corresponding button, then press

down the knob to perform the corresponding operation (note that only

when the button turns green, can your operation on the knob be valid ).

10. Menu Key

Enters the waveform mode selection interface.

11. Home Key

Enters the main interface of the instrument.

12. Function Keys

be preset.

the unlocked state, press Lock to lock the fro nt-panel keys and the touch screen. At this time, except the Lock key, all other keys on the front p anel and the touch screen operation are invalid. Press the Lock key again to unlock the keys and the touch screen.

— The default trigger setting for the generator is Internal

trigger. In this mode, when you select the sweep or burst this time, press the Trig key, and instrument automatically

switches to the manual trigger mo de fr om auto trigger.

— Each time you press the Trig key, one sweep will be

triggered manually or one burst will be output.

parameters.

arbitrary waveform data. A non-volatile memory (Disk C) is built in, and a USB storage device (Disk D) can be externally connected.

information of the curr ent interface.

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Note: When the instrument is in the remote mode, press this

key to return to th e local mode.

13. LCD

4.3-inch TFT (480×272) color LCD d isplay. The menu label and parameter settings of the current function, system state, prompt messages, and other information can be clearly displayed on the LCD. F or details, refer to descriptions in "User Interface".

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RIGOL Chapter 1 Quick Guide

1 2 3 4 5 6

Rear Panel Overview

Figure 1-2 Rear Panel

1. [10MHz In/ Out]

BNC female connector, with 50 Ω nominal impedance. Its function is determined

by the clock type used by the instrument.

1) When internal clock source is selected, this connector (as 10MHz Out)

outputs the 10 MHz c lock signal generated by the internal crystal oscillator

inside the generator.

2) When external clock source is selected, this connector (as 10MHz In)

recei v e s an externa l 10 MHz clock signal.

This connector is usually used to realize synchronization among multiple

instruments. For detai ls about the signals mentioned above, please refer to

the descriptions in "Clock Source".

2. [CH1/Sync/Ext Mod/Trig/FSK]

BNC female connector, with 50 Ω nominal impedance. Its function is determined

by the current working mode of CH1.

1) Sync

When the output of CH1 is enabled, this connector outputs the

corresponding sync signal that matches the current configuration of CH1.

For detailed infor mation about the characteristics of the sync signals that

correspond to various output signals, refer to the descriptions in "Sync

Setting".

2) Ext Mod

When AM, FM, PM, or P WM of CH1 is enabled and external modulation

source is selected, this connector re ceives an e xternal modulation si gnal. Its

input impedance is 1000 Ω. For details, refer to descriptions in

"Modulation".

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Chapter 1 Quick Guide RIGOL

3) FSK When ASK, FSK, or PSK of CH1 is enable d and external m odulation source is selected, this connector rec eives an external modulation signal whose

polarity can be set by users. Its input impedance is 1000 Ω. For details,

refer to descriptions in "Modulation".

4) Trig In

When Sweep or Burst of CH1 is enabled and external trigger sour c e is selected, this connector rec eives an external trigger signal whose polarity can be set by users.

5) Trig Out

When Burst of CH1 is enab led, and the internal/manual trigger source is selected, this connector outputs a trigger signal with specified edge type.

3. [CH2/Sync/Ext Mod/Trig/FSK]

BNC female connector, with 50 Ω nominal impedance. Its function is determined by the current working mode of CH2.

1) Sync

When the output of CH2 is enabled, this connector outputs the corresponding sync signal that matches the current configuration of CH2. For detailed information about the char acteristics of the sync signals that correspond to various output signals, refer to the descriptions in "Sync

Setting".

2) Ext Mod

When AM, FM, PM or PW M of CH2 is enabled and external modulation source is selected, this connector re ceives an e xternal modulation signal. Its

input impedance is 1000 Ω. For details, refer to descriptions in

"Modulation".

3) FSK

When ASK, FSK, or PSK of CH2 is enable d and external m odulation source is selected, this connector rec eives an external modulation signal whose

polarity can be set by users. Its input impedance is 1000 Ω. For details,

refer to descriptions in "Modulation".

4) Trig In

When Sweep or Burst of CH2 is enabled and external trigger sourc e is selected, this connector rec eives an external trigger signal whose polarity can be set by users.

5) Trig Out

When Burst of CH2 is enab led, and the internal/manual trigger source is selected, this connector outputs a trigger signal with specified edge type.

4. USB HOST

Supports FAT32 format Flash type USB storage device, RIGOL TMC digital oscilloscope (DS), and the USB-GPIB interface converter.  USB storage device: reads the waveform files or state files saved in the USB

storage device; or stores the current instrument states or edited waveform data into the USB storage device. Besides, the contents displayed on the

DG800 User's Guide 1-9

RIGOL Chapter 1 Quick Guide

It is used to connect the generator to a computer which can control the generator remotely by using PC software or by programming.

The rated AC power source supported by the signal g enerator is (100-127 V, exceed 30 W. The specification of the fuse is 250 Vac, T4.0 A.

screen can also be saved to the USB storage device in the format of an image (*.Bmp).

 TMC DS: seamlessly int erconnects with the RIGOL DS that meets the TMC

standard. Reads and sto res the waveform data collected by the DS and rebuilds waveform s without distortion.

 USB-GPIB interface converter (optional accessory): extends the GPIB

interface for RIGOL instruments that integrates the U SB HOST interface but not the GPIB interface.

5. USB DEVICE

6. AC Power Cord Connector

45-440 Hz) or (100-240 V, 45-65 Hz), and its maximum input po wer shall not

1-10 DG800 User's Guide

Chapter 1 Quick Guide RIGOL

CAUTION

grounded.

To Prepare for Use

To Connect to AC Power

Please use the power cor d provided in the acces sories to co nnect the s ignal generator t o the AC pow er sou rce, a s shown in t he fi gure be low . Th e rat ed AC powe r source supported by the signal generator is (100-127 V, 45-440Hz) or (100-240 V, 45-65Hz), and its maximum input power shall not exceed 30 W. When the signal generator is connected to the AC power source via the power c ord, the instrument automatically adjusts itself to within the proper voltag e range, and you do not need to select the voltage range manually.

To avo id e lectric shock, ensure that the instrument is correctly

Turn-on Checkout

After connecting the instrument to the p ower source properly, press on the front panel to start the signal generator. During the start-up, the instrument will undergo the initialization and self-check process. Then, it will enter a default interfa ce. If you still fail to power on the instrument normally, refer to the methods in

"Troubleshooting" to resol v e the prob lem.

To Set the System Language

DG800 arbitrary waveform generator supports multiple lang uages. You can press Utility  System Setting, and then select a desired lang uage from the "Language" drop-down list.

DG800 User's Guide 1-11

RIGOL Chapter 1 Quick Guide

Output Impedance Type: Channel Output State:

Selected Waveform:

1 2 3

7 6 5 4

User Interface

The DG800 user interfac e is shown in the following figure.

Figure 1-1 User Interface

1. Channel Output Configuration Status Bar

Displays the current output configuration of the channel.

Sine/Square/Ramp/Pulse/Noise/Prbs/Dualtone/Harm /Rs232/DC/Arb/Sequence

Modulation Type: AM/FM/PM/ASK/FSK/PSK/PWM Sweep Type: Linear/Log/Step Burst Type: Ncycle/Infinite/Gated

ON: illuminated in yellow. OFF: grayed out.

Note: Two channels can be enabled simultaneously, but you cannot select both

channels at the same time.

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High impedance: displays HighZ. Load: displays impeda n ce (the

default is 50 Ω and the range is

from 1 Ω to 10 kΩ).

Chapter 1 Quick Guide RIGOL

2. Up and Down Scroll Bar

Prompts you to move up and down with yo ur f i ng e rs on the screen to view and set parameters.

3. Information Setting

: opens the Store interface. : opens the Utility interface.

: performs the channel c opy function. : performs the screen print operation.

4. Right Arrow

Prompts you to slide right on the screen to switch to the waveform selection interface.

5. Status Bar : indicates that the front-panel keys and the screen are locked. : indicates that the beeper is disabled.

: indicates that the instrum ent is in programming-controlled mode. : indicates that the instrum ent has been successfully connected to the local

area network by using the network cable.

: indicates that a USB storage device is found.

6. Waveform

Displays the currently selected waveform of each channel.

7. Interface Label

Displays the label of the current interface.

8. Frequency

Displays the frequency o f the current waveform of eac h channel. Tap the Freq parameter input field to modify the pa r ameter with t he pop-up numeric keypad. You can also use the arrow keys and the knob to mod ify the paramet er.

9. Amplitude

Displays the amplitude of the current w aveform of each channel. Tap the Ampl parameter input field to modify the parameter with the pop-up numeric keypad. You can also use the arrow keys and the knob to modify the parameter.

10. Offset

Displays the DC offset of t he cu rrent w a vef orm of ea ch chan nel. Tap the Offset parameter input field to modify the pa r ameter with t he pop-up numeric keypad. You can also use the arrow keys and the knob to modify the parameter.

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11. Phase

Displays the phase of the current waveform of each channel. Tap the Phase parameter input field to modify the pa r ameter with t he pop-up numeric keypad. You can also use the arrow keys and the knob to mod ify the parameter.

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To Use the Built-in Help System

DG800 series provides the help information for each front-panel function menu and the current display interface. You can view the help information if you have any questions during the operation process.

1. Obtain the help information of the front panel keys

To get the help information ab out any front-panel key or menu softkey, press the Help/Local key first, and then press the desired key for the help information. Then, the corresponding help infor mation is displayed.

2. Obtain the common help topics

Press Help/Local o n the front panel, and then the following interface is displaye d below. Tap "Help" to enter the help interface. At this time, you can tap on the touch screen to move up and d own the help items o r rotate the kno b to scroll up and down the list to select the desired help item. Then, the help information for the item is displayed in the interface.

3. Obtain the des c r iptions of the data in the interface

Press Help/Local on the front p anel to enter the interface, as shown above. Tap "Center" to view the descriptions for the data in the center of the current interface. Tap "Top" to view the descriptions for the data in the top part of the current interface. Tap "Bottom" to view the descriptions for the data in the bottom part of the current interface. Tap "Guide" to enter the guid e interface.

4. Page up/down operation

When the help information is displayed in multiple pages, you can tap to move up and down the touch screen to view the help information.

5. Close the current help information

When the help information is displayed in the interface, press Help/Local on the front panel to close the help information currently displayed on the screen.

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Chapter 2 Front Panel Operations RIGOL

Chapter 2 Front Panel Operations

Introduces the main functions and operation methods of D G 800. Contents in this chapter:

 To Output Basic Wavefo r m  To Output the Arbitrary Waveform  To Output Harmonic  DC  To Output Dual-tone Waveform  To Output Advanced Waveform  Modulation  Sweep  Burst  Frequency Counter  Store and Recall  Channel Setting  Common Settings  System Utility Function

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Key Points:

configuration.

To Output Basic Waveform

DG800 series can output basic wa v efor ms (in cludin g Sine, S qua re, Ramp, Pulse, and Noise) from one channel or from both two channels at the same time. A t start-up, the dual channels are configured to output a sine waveform with 1 kHz frequenc y and 5 Vpp amplitude by default. Users can c onfigure the instrument to output various basic wavef or ms.

To Select Output Channel

At start-up, the instrument displa ys the CH1 parame ter interface by default . You can press Output1 or Output2 (also, you can tap the channel output configuration

status bar or ) to switch between CH1 and CH2 as the currently selected channel.

After the desired channel is selected, you can configure the waveform and parameters of the selected channel.

CH1 and CH2 cannot be both selected at the same time. You can first select CH1, after configuring the waveform and parameters of CH1, then select CH2 for

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Sine

Square

Ramp

Pulse

Noise

Sine

Square

Ramp

Pulse

Noise

Freq/Period

√

√ √ √

Ampl/HighL

√

√ √ √

√

Offset/LowL

√

√ √ √

√

√ √ √

Align Phase

√

√ √ √

Duty

√ √

Symmetry

√

Width/Duty

√

RisEdge

√

FallEdge

√

To Select Basic Waveform

DG800 can output 5 basic w aveforms, in cluding Sine, Square , Ramp, Pulse and Noise. Press Menu on the front panel, then tap the touch screen to select the desired waveform. After selecting the desired waveform, you are automatically directed to the waveform parameter setting interface. To go back to the waveform selection interface, tap to slide r ight or press the Menu key on the front pan e l . At s t ar t-up, Sine is selected by default.

Table 2-1 Basic Waveforms

Basic Waveforms

Function Name

Start Phase

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Sine

Square

Ramp

Pulse

Noise (-3 dB)

1 μHz to

10 MHz

1 μHz to 5 MHz

1 μHz to

200 kHz

1 μHz to

5 MHz

100 MHz Bandwidth

1 μHz to

25 MHz

1 μHz to

10 MHz

1 μHz to

500 kHz

1 μHz to

10 MHz

100 MHz Bandwidth

1 μHz to

35 MHz

1 μHz to

10 MHz

1 μHz to

1 MHz

1 μHz to

10 MHz

100 MHz Bandwidth

To Set Frequency/Period

Frequency is one of the most im portan t par amete rs of basic wav efor ms. F or differe nt instrument models and w aveforms , the sett ing ranges of frequency a re different . The default frequency is 1 kHz.

DG812/DG811 DG822/DG821 DG832/DG831

The frequency displayed on the screen is the default value or the frequency previously set. When the instrument function is changed, if this frequency is valid under the new function, the instrument will still use this frequency; otherwise, the instrument would display a p rompt message and set the frequency to the frequency upper limit of the new function automatically.

Tap the Freq parameter input field to input the desired frequency value with the numeric keypad, then selec t the unit. Tap "Ok".

 The frequency units available are MHz, kHz, Hz, mHz, and μHz.  Tap the label again to switch to Period setting.  The period units available are s, ms, μs, and ns.

You can also use the arrow keys and the knob to set the parameter value: press down the knob to enter the edit ing mode, use the arrow keys to move the cursor to select the digit to be ed ited, and then rotate the knob to modify the value. Besides, you can use the knob to switch between different parameters.

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Key Points:

square value . The default unit is Vpp . Whe n you set the amplitude ,

Vpp=2Vamp

Vrms=0.707Vamp

Vamp

To Set Amplitude/High Level

The amplitude setting range is limited by the "I mpedance" and " Freq/Period" settings. By default, it is 5 V pp.

The amplitude displayed on the screen is the default value or the amplitude previously set. When the instrument configuration (e .g. frequency) is changed, if this amplitude is valid, the instrument will still use this amplitude; otherwise, the instrument would display a prompt message and set the amplitude to the amplitude upper limit of the new co nfiguration automatically. You can also use "High Level" or "Low Level" to set the amplitude.

Tap the Ampl parameter input field to input the desired frequency value with the numeric keypad, then selec t the unit. Tap "Ok".  The amplitude units av aila ble a re Vpp , m Vpp, V rms, mVrms, an d dBm (inv alid i n

HighZ).

 Tap the label again to switch to High Level setting.  The high level units available are V and mV.

You can also use the arrow keys and the knob to set the parameter value: pr ess down the knob to enter the editing mode, use the arrow keys to move the cursor to select the digit to be ed ited, and then rotate the knob to modify the value. Besides, you can use the knob to switch between different parameters.

1． How to convert the amplitude in Vpp to the corresponding value in

Vrms?

Method:

Vpp is the unit for signal peak-p eak value and Vrms is the unit for root-meaninput a decimal point in th e nu meric key pad, a nd th en sele ct a unit. Tap "Ok" to switch to the unit of the current amplitude.

Remarks:

For different waveforms, the r el atio n betwee n Vpp and Vrms is different. The relation of the two units is as shown in the figure below (take sine waveform as an example).

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According to the fi gure a bov e, the conversion relation between Vpp and Vrms

Vrms22Vpp =

ted to a value with Vrms as the unit. For sine waveform, the converted

and the conversion relation

10lg( )

0.001

Vrms

dBm

= ×

1.768 Vrms (i. g. 5 Vpp), input a de cimal point in the numeric keypa d and the n

fulfills the following equation:

For example, if the current amplitude is 5 Vpp, input a decim al point in the numeric keypad, and then select a unit Vrms. Tap "Ok". Then, it can be conver value is 1.768 Vrms.

2． How to set the amplitude of the waveform in dBm?

Method:

1) Press Output1 or Output2 ( also, you can tap the channel output configuration s ta t u s bar or ) to select the desired

channel.

2) Tap the channel output configuration status bar (CH1) or

(CH2). In the channel setting interface, tap the OutputSet menu label and select "Off". Then use the numeric keypad to set a proper load value.

3) Select the desired waveform, tap the Ampl menu label, and then input the desired value b y using the numeric keypad. Then select the unit "dBm " fr om the pop-up menu.

Remarks:

dBm is the unit for signal power absolute value， between dBm and Vrms fulfills the following equation:

Wherein, R represents the c hannel output impedance value and it must be a specific value, so the unit dBm is not available when the output impedance is "HighZ".

For example, if the current output impedance is 50 Ω and the amplitude is

select "dBm". Tap "Ok" to convert the amplitude value to the corresponding value in dBm. The converted value is 17.9601 dBm.

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To Set Offset/Low Level

The DC offset setting range is limited by the "Impedance" and "Amplitude/High Level" settings. The default value is 0 V

The DC offset vo ltage displayed on the screen is the default value or the o ffset previously set. When the instrument configuration (e.g. impedance) is changed, if this offset is valid, the instrument will still use this offset; otherwise, the instrument would display a prompt message and set the offset to the offset upper limit of the new configuration automatically.

Tap the Offset parameter input field to input the desired offset value with the numeric keypad, then selec t the unit. Tap "Ok".

 The DC offset voltage units available are Vdc and mVdc.  Tap the label again to switch to Low Level setting.  The low level should be at least 1 mV smaller than the high level (output

impedance: 50 Ω).

 The low level units available are V and mV. You can also use the arrow keys and the knob to set the parameter value: press

down the knob to enter the editing mode, use the arrow keys to move the cursor to select the digit to be ed ited, and then rotate the knob to modify the value. Besides, you can use the knob to switch between differ ent parameters.

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To Set Start Phase

The setting range of start phase is fr om 0° to 360°. The default is 0°. The start phase displayed on the screen is the default value or the phase previously

set. When the instrument function is changed, the new function will still use this phase.

Tap the Phase parameter input field to input the desired phase value with the numeric keypad, then selec t the unit "°". Tap "Ok".

You can also use the arrow keys and the knob to set the parameter value: pr ess down the knob to enter the editing mode, use the arrow keys to move th e cursor to select the digit to be ed ited, and then rotate the knob to modify the value. Besides, you can use the knob to switch between different parameters.

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Duty Cycle=t/T*100%

To Set Duty Cycle (Square)

Duty cycle is defined as the percentage that the high level takes up in the whole period (as shown in the figure below). This parameter is only available when Square or Pulse is selected.

The available range of the duty cycle is from 0.01% to 99.99% (limited by the current frequency setting). The default is 50%.

Tap the Duty parameter input field to input the desired duty cycle value with the numeric keypad, then selec t the unit "%". Tap "Ok".

You can also use the arrow keys and the knob to set the parameter value: press down the knob to enter the editing mode, use the arrow keys to move the cursor to select the digit to be ed ited, and then rotate the knob to modify the value. Besides, you can use the knob to switch between different parameters.

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Symmetry=t/T*100%

To Set Symmetry (Ramp)

Symmetry is defined as the percentage that the rising period of the ram p takes up i n the whole period (as shown in the figure below). This param eter is only available when Ramp is selected.

The setting range of symmetry is from 0% to 100%. The d efault is 50%. Tap the Symm parameter input field to input the desired symmetry value with the

numeric keypad, then selec t the unit "%". Tap "Ok". You can also use the arrow keys and the knob to set the parameter value: press

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Pulse

10%

tFall

90%

50%

Pulse Period

To Set Pulse Width/Duty Cycle (Pulse)

Pulse width is defined as t he time from the 50% th reshold of a pulse's rising e dge to the 50% threshold of the next falling edge (as shown in the fig ure below).

The settable range of the pulse width is from 16 ns to 999.999982118 ks (limited by "minimum pulse width" and "pulse period"). The default is 500 μs.

 Pulse Width ≥ Minimum Pulse Width  Pulse Width < Pulse Period - 2 × Minimum Pulse Width

Pulse duty cycle is d efined as the percentage that the pulse wid th takes up in the whole pulse period.

Pulse duty cycle and pulse width are correlative. Modifying either of them (pulse duty cycle or pulse width) will automatically affect the other. The settable range of the pulse duty cycle is from 0.001% to 99.999% (limited b y "minimum pulse width" and "pulse period"). The default is 50%.

 Pulse Duty Cycle ≥ 100 × Minimum Pulse Width ÷ Pulse Period  Pulse Duty Cycle < 100 × (1 - 2 × Minimum Pulse Width ÷ Pulse Period)

Tap the Width parameter input field to input the desired pulse width value with the numeric keypad, then selec t the unit. Tap "Ok".

 The pulse width units available are s, ms, μs, and ns.  Tap this menu label again to switch to duty cycle setting.

You can also use the arrow keys and the knob to set the parameter value: pr ess down the knob to enter the editing mode, use the arrow keys to move the cursor to select the digit to be edited, and then rotate the knob to modify the value. Besides, you can use the knob to switch between different parameters.

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Pulse

10%

tRise

tFall

90%

50%

Pulse Period

To Set Rising/Falling Edge (Pulse)

The rising edge time is def ined as the dur ation of t he pulse a mplitu de rising from 10% to 90% threshold, while falling edge time is defined as the duration of the pulse amplitude moving down from 90% to 10% threshold (as shown in the figure below).

The setting range of rising /falling edge time is limit ed by the currently specifie d pulse width limit (as shown in the formula below). DG800 will automatically adjust the edge time to match the specified pulse width if the value currently set exceeds the limit value.

Rising/Falling Edge Time ≤ 0.625 × Pulse Width

Tap the RisEdge or FallEdge parameter input field. Use the numeric keypad to input the desired value and then select the desired unit from the pop-up menu.

 The pulse width units available are sec, msec, μsec, and nsec.  The rising and falling edge time are independent of each other, and users can

set them separately.

You can also use the arrow keys and the knob to set the parameter value: pr ess down the knob to enter the editing mode, u se the arrow keys to move the cursor to select the digit to be ed ited, and then rotate the knob to modify the value. Besides, you can use the knob to switch between different parameters.

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To Enable Channel Output

After configuring the parameters of the waveform selec ted , enable the channel to output the waveforms.

Before enabling channel output, you can also tap or and then tap the corresponding menu label in the channel setting interface to set the parameters related with the channel output. For details, refer to descriptions in "Channel Setting".

Press Output1 or Output2 on the front panel, and then the b acklight turns on. You can also tap the channel output configuration status bar or

enable the channel output in t he channel setting interface. When the channel status bar is highlighted, (i.g. ), the configured waveforms are output from the

corresponding output connector on the front panel.

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CH1

CH2

CH1

CH2

Align Phase

DG800 series dual-channel function/arbitrary waveform generator enab l es you to align the phases of the two channels. Press Align on the front panel, then the instrument will re-configure the two c hannels and enable the generator to output with specified frequency and start phase.

For two signals who se frequencies are the same or in multiple relationship, this operation can align their phases. For example, assume a sine waveform (1 kHz, 5 Vpp, 0°) is output from CH1, while another one (1 kHz, 5 Vpp, 180°) from C H2. Use the oscilloscope to acquire the w ave forms of the two channels and sta bly displa y the waveforms. It can be found that the phase deviation between the two waveforms is no longer 180°. At this point, press Align on the generator and the waveforms shown on the oscilloscope will have a p hase deviation of 180° without manual adjustment of the start phase of the generator.

Figure 2-1 Before Aligning Phase

Figure 2-2 After Aligning Phase

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Example: To Output Sine

This section mainly introduc es how to output Sine waveforms (frequency 20 kHz, amplitude 2.5 Vpp, offset 500 mV

1. Select the output channel: Press Output1 on the front panel or tap the channel output configuration status bar to selec t CH1.

2. Select Sine waveforms: Press Menu on the front panel, and then the waveform selection interface is displayed. Tap Continuous and t hen select the "Sine" icon to go to the sine waveform parameter setting interface automatically.

3. Set frequency: Tap the Freq parameter input field to input 20 with the pop-up numeric keypad, and then select the unit "kHz". Tap "Ok".

4. Set amplitude: Tap the Ampl parameter input field to input 2.5 with the pop-up numeric keypad, and then select "V pp" as the unit. Tap "Ok".

5. Set offset voltage: Tap the Offset parameter input field to input 500 with the pop-up numeric keypad, and then select "mVdc" as the unit. Tap "Ok".

6. Set start phase: Tap the Phase parameter input field to input 90 with the pop-up numeric keypad, and then select "°" as the unit. Tap "Ok".

7. Enable channel output: Press Output1 and the backlight turns on. Also, you can tap the channel output configuration status bar to enable the channel output. Then, the channel status is highlighted (i.g. ), and

the Sine signal is output from the [CH1] connector based on the c urrent configurations.

8. Observe the output waveform: Connect the [CH1] connector of DG800 to the oscilloscope by using t he BNC cable. T he w avef orm is as shown in the figu re below.

dc, start phase 90°) from the [CH1] connector.

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Figure 2-3 Sine Waveform

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Key Points:

1 MHz, some waveforms will be distorted.

To Output the Arbitrary Waveform

DG800 can output built-in waveforms from a single channel or from two channels at the same time. The 160 kinds of built-in arb itrary waveforms are stor ed in the internal non-volatile memory.

To Enable Arbitrary Waveforms

Press Menu  Continuous  "Arb" to enable arbitrary waveform function and open the arbitrary waveform selection interface, as shown in the figure below.

Figure 2-4 Arbitrary Waveform Selection Interface

To Select the Waveform

DG800 allows users to select 160 built -in waveforms and arbitrary waveforms stored in the internal or external memory of the instrument.

After selecting the desired waveform, press the corresponding channel output control key (Output1 or Output2), and the specified wavefo rm will be outp ut from the channel. For details, refer to descriptions in "To Enable Channel

Output

". Note that when the frequency of the arbitrary waveforms is greate r than

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Type

Waveform

Remarks

Engineering

Sinc

Sinc function

Lorentz

Lorentz function

Log

Logarithm function and the base is 10

GausPul

Gauss pulse

NegRamp

Negative ramp

NPulse

Negative pulse

PPulse

Positive pulse

SineTra

Sine-Tra waveform

SineVer

Sine-Ver waveform

StairDn

Stair-down waveform

StairUD

Stair-up and stair-down waveform

StairUp

Stair-up waveform

Trapezia

Trap ezia waveform

AmpALT

Gain oscillation curve

AttALT

Attenuation oscillation curve

RouHalf

RoundHalf W ave

RousPM

RoundsPM Waveform

Time-velocity curve of explosive vibration

Time-displacement curve of damped oscillation

Kinetic energy- time curve of swing oscillation

Dischar

Discharge curve of Ni-MH battery

Current waveform of DC brushles s motor

Combin

Combination function

SCR

SCR firing profile

Bworth

Butterworth filter

Chshev1

Chebyshev1 filter

Built-in Waveform

DG800 has 160 built-in arbitrary waveforms, as shown in Table 2-2 waveform selection interface, tap the Engineering, Medical, AutoElec, or Maths menu label to select the corresponding type. Tap or rotate the knob (pressing the right arrow key will loc ate the cursor to the right of the interface) to select the desired waveform (the selected wavefo rm is highlighted). The waveforms under the Common menu label are mo st frequently selected ones by users. At most, 8 waveforms can be stored.

Table 2-2 160 Built-in Arbitrary Waveforms

. In the arbitrary

BlaWave DampOsc SwigOsc

Pahcur

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Chshev2

Chebyshev2 filter

TV sign al

Voice

Voice signal

Surge

Surge signal

Radar

Radar signal

DualTone

Dual-tone signal

Ripple

Power ripple

Quake

Analog quake waveform

Gamma

Gamma signal

StepResp

Step-response signal

BandLim

Bandwidth-limited signal

CPulse

C-Pulse signal

CWPulse

CW pulse signal

GateVibr

Gate self-oscillation signal

LFMPulse

Linear FM pulse signal

MCNoise

Mechanical construction noise

Sectioned sine AM signal

Sectioned sine FM signal

PFM

Sectioned pulse FM signal

Sectioned sine PM signal

PWM

Sectioned PWM signal

Medical

Cardiac

Cardiac signal

EOG

Electro-oculogram

EEG

Electroencephalogram

EMG

Electromyogram

Pulgram

Pulsilogram

ResSpd

Speed curve of the respiration

ECG1

Electrocardi ogra m 1

ECG2

Electrocardi ogra m 2

ECG3

Electrocardi ogra m 3

ECG4

Electrocardi ogra m 4

ECG5

Electrocardi ogra m 5

ECG6

Electrocardi ogra m 6

ECG7

Electrocardi ogra m 7

ECG8

Electrocardi ogra m 8

ECG9

Electrocardi ogra m 9

ECG10

Electrocardi ogra m 10

ECG11

Electrocardi ogra m 11

ECG12

Electrocardi ogra m 12

ECG13

Electrocardi ogra m 13

ECG14

Electrocardi ogra m 14

ECG15

Electrocardi ogra m 15

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Waveform of the low f req uency pulse electrotherapy

Wavefor m 1 of the nerve stimulation electrotherapy

Wavefor m 2 of the nerve stimulation electrotherapy

Wavefor m 3 of the nerve stimulation electrotherapy

AutoElec

Ignition wavefo rm of the automotive motor

Automotive starting profile wi th ringing

Automotive supply voltage profile for resetting

Automotive transients arising from disconnection

Automotive transients arising from inductance in wiring

Automotive transients arising from the ignition switching off

Automotive transients arising from switching

Automotive working pro file during start-up

Automotive transients arising from cut-off of battery power

Automotive transients arising from cut-off of bat t e ry power

Maths

Airy

Airy function

Besseli

Bessel functions of the first kind

Bessely

Bessel functions of the second kind

Cubic

Cubic function

Dirichlet

Dirichlet function

Erf

Error function

Erfc

Complementary error function

ErfcInv

Inverted complementary error function

ErfInv

Inverted error function

ExpFall

Exponential fall function

ExpRise

Exponential rise function

HavSin

HaverSine function

LFPulse Tens1 Tens2 Tens3

Ignition

VR TP1 TP2A TP2B TP3A TP3B TP4 TP5A TP5B

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Laguerre

4-times Laguerre polynomial

Legend

5-times Legend polynomial

Versiera

ARB_X2

Square function

Gaussian distribution or normal distribution

Weibull

Weibull distribution

LogNorm

Logarithmic normal distribution

Laplace

Laplace distribution

Maxwell

Maxwe l l distrib ution

Rayleigh

Rayleigh distribution

Cauchy

Cauchy distribution

CosH

Hyperbolic cosine

CosInt

Integral cosine

Cot

Cotangent

CotHCon

Concave hyperbolic cotangent

CotHPro

Protuberant hyperbolic cot angent

CscCon

Concave cosecant

CscPro

Protubera nt cosecant

CscHCon

Concave hyperbolic cosecan t

CscHPro

Protuberant hyperbolic cose cant

RecipCon

Concave re ci procal

RecipPro

Protubera nt reciprocal

SecCon

Concave secant

SecPro

Protuberant secant

SecH

Hyperbolic secant

SinH

Hyperbolic sine

SinInt

Integral sine

Sqrt

Square root

Tan

Tangent

TanH

Hyperbolic tangent

AbsSine

Absolute value of sine

AbsSinH

Absolute value of half sine

ACos

Arc cosine

ACosH

Arc hyperbolic cosine

ACotCon

Concave a rc cotangent

ACotPro

Protuberant arc cotangent

ACotHCon

Concave arc hyper bolic cotangent

ACotHPro

Protuberant arc hyperbolic cotangent

ACscCon

Concave a rc cosecant

ACscPro

Protuberant arc cosecant

ACscHCon

Concave arc hyperbolic cosecant

ACscHPro

Protuberant arc hyperbolic cosecant

ASecCon

Concave arc secant

Gauss

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ASecPro

Protuberant arc seca n t

ASecH

Arc hyperbolic sec a n t

ASin

Arc Sinc

ASinH

Arc hyperbolic sin e

ATan

Arc tangent

ATanH

Arc hyperbolic tangent

Bartlett

Bartlett window

BarWin

Modified Bartlett-Hann wind ow

Blkman

Blackman window

BlkmanH

Blackman-Harris window

BohWin

Bohman window

Boxcar

Rectangular window

ChebWin

Chebyshev window

FlatWin

Flat Top weighted window

Ham

Hamming window

Hanning

Hanning window

Kaiser

Kaiser window

Nuttall-defined minimum 4-term Blackman-Harris window

ParWin

Parzen window

TayWin

Taylor window

Triang

Triangle window (Fejer window)

TukWin

Tukey (tapered cosine) window

NutWin

To Set Parameters

After selectin g the desired wa veform, you a re aut omatically directe d to the wav eform parameter setting interface.

1. Freq/Period: sets the output frequency/period of the arbitrary waveform.

2. Ampl/HighL: sets the output amplitude/high level of the arbitrary waveform.

3. Offset/LowL: sets the output offset/low level of the arbitrary wavefor m.

4. Phase: sets the output start phase of the arbitrary waveform.

Please refer to "To Output Basic Wav eform" to configure the parameters and output for the channel.

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......)2sin()2sin()2sin()(

333222111

++++++=

ϕπϕπϕπ

tfAtfAtfAtf

To Output Harmonic

DG800 can be used as a harmonic gene rator to output harm onic with specified order, amplitude and phase. It is usually used in the test of harmonic detector device or harmonic filter device. This section introduces how to configure the generator to output harmonic.

Harmonic Overview

According to Fourier transform, time domain waveform is the superposition of a series of sine waveforms, as shown in the equation below:

Generally, component with fundamental waveform frequency,

is the fundamental waveform phase. The frequencies of the other components

(called harmonics) are all integral multiple of the fundamental waveform frequency. Components whose frequencies are odd multiples of the fundamental waveform frequ ency are called odd harmonics, and components whose frequencies are even multiples of the fundamental waveform frequency are called even harmonics.

At most, 8th harmonic c an be output by DG800. After selecting CH1 or CH2, press Menu  Continuous  "Harm" to en ter the harmonic setting menu. You can set fundamental waveform parameters, select the type of output harmonic, specify the highest order of harmonic, and set the amplitude and phase of each order of harmonic.

After completing the harmonic parameters set t ing, p ress Output1, and the backlight turns on. The instrument outputs the specified harmonic from the corresponding output terminal. For details, refer to descriptions in " Channel Output".

frequency is called fundamental waveform,

is the fundamental wav eform amplitude, a nd

To Enable

is the

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To Set Fundamental Waveform Parame ters

DG800 allows users to set various fundamental waveform parameters such as frequency, period, amplitude, DC offs et voltage, high level, low level, and start phase . It also supports align phase operation. To set the above fundamental waveform parameters, refer to descriptions in "To Output Basic Waveform".

To Select Har monic Type

DG800 can output even harmonic, odd harmonic, both harmonics, and user-defined order of harmonic. After entering the harmonic setting interface, tap the Type parameter selection field to select the desired harmonic type.

1. Even: outputs fundamental waveform and even harmonics.

2. Odd: outputs fundamental waveform and odd harmonics.

3. Both: outputs fundamental waveform and all the harmonics in ord er.

4. User: outputs the user-defined orders of harmonics. The highest order is 8.

8 bits binary data are used to represent the output status of the 8 orders of harmonics respectively. Wherein, 1 represents enabling the output of the corresponding harmonic, and 0 represents disabling the output of the corresponding harmonic. You only need to tap the User parameter input field, and then modify the value of each d ata bit by using the numeric keypad (note that the leftmost bit repres enting fundamenta l wavef orm is alw ays X and cannot be modified). For example, if you set the 8 bits data to X001 0001, it indic ates that the fundamental waveform, 4th and 8th orders of harmonics are output.

Note: The actually output harmonics is determined by the c urrently specified

harmonic order and harmo nic type.

To Set Harmoni c Order

The highest order of harmonic output from DG800 cannot b e greater than the specified value.

After entering the harmonic setting interface, tap the Count parameter selection field to input a value with numeric keypad.  The range is limited by the maximum output frequency of the instrument and

current fundamental waveform frequency.

 Range: 2 to maximum output frequency ÷ fundamental waveform

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frequency, an integer.

 The maximum is 8. You can also use the arrow keys and the knob to set the parameter value: pr ess

To Select Har monic Amplitude

After entering the harmonic setting interface, tap the Harm Ampl parameter input field to set the amplitude of each order of harmonic.

1) No.: selects the sequence number of the harmonic to be set.

2) Harm Ampl: sets the amplitude of the specified order of harmonic. Use the

numeric keypad to input the amplitude value, and then select the desired unit. Tap "Ok". The amplitude units available are Vpp, mVpp, Vrms, mVrms, and dBm (invalid in HighZ).

To Set Harmonic Phase

After entering the harm on i c setting interface, tap the Harm Phase parameter input field to set the phase of each order of harmonic.

1. No.: selects the sequence number of the harmonic to be set.

2. Harm Phase: sets the phase of the specified order of harmonic. Use the

numeric keypad to input the phase value, and then select the desired unit "°". Tap "Ok".

Example: To Output Harmonic

This section introduces how to outp ut 2th o rder of harm onic (har monic amplitude: 2 Vpp, harmonic phase: 30°) and 4th orders of harmonic (harmonic amplitude: 1 Vpp , harmonic phase: 50°) from the [CH1] connector.

1. Select the output channel: Press Output1 on the front panel or tap the channel output configuration status bar to select CH1. At this time,

the channel is indicated in red in the status bar.

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2. Set fundamental waveform parameters: In this example, various parameters of the fundamental waveform take the default values. You can also refer to descriptions in "To Output Basic Waveform" to set various fundamental waveform parameters such as frequency/period, amplitude/high level, offset/low level, and start phase.

3. Enable harmonic function: Press Menu on the front panel, and then the waveform selection interface is displayed. Tap Continuous and t hen select the "Harm" icon to go to the harmonic parameter setting interface automatically.

4. Set harmonic count: In the harmonic parameter setting interfac e, tap the Count parameter input field to input a value 5 with pop-up numeric keypad. T a p "Ok".

5. Select the harmonic type: In the harmonic parameter setting interface, tap the Type parameter selection field to select the desired even harmonic.

6. Set harmonic amplitude: In the harmonic parameter setting menu, set the

amplitude of 2th and 4th orders of harmonic.

1) Tap the No. parameter input field to input 2 with the pop-up numeric

keypad, and then tap "Ok".

2) Tap the Harm Ampl parameter input field to input 2 with the pop-up

numeric keypad, select the unit "Vpp". Then tap "Ok".

3) Refer to Step 1 and Step 2 to set the amplitude of the 4th order harmonic to

1 Vpp.

7. Set harmonic phase: In the harmonic pa rameter set ting menu, set the ph ases of 2th and 4th orders of harmonic in sequence.

1) Tap the No. parameter input field to input 2 with the pop-up numeric

keypad, and then tap "Ok".

2) Tap the Harm Phase parameter input field to input 30 with the pop-up

numeric keypad, select the unit "°". Then tap "Ok".

3) Refer to Step 1 and Step 2 to set the phase of the 4th order harmonic to

50°.

8. Enable channel output: Press Output1, and the backlight turns on. Also, you can tap the channel output configuratio n status bar to enable the channel output. Then, the channel status is highlighted (i.g. ),

and the fundamental wa veform, 2th and 4th or der of harmoni cs are output f rom the [CH1] connector ba sed on the current configurations.

9. Observe the output waveform: Connect the [CH1] connector of DG800 to the oscilloscope by using t he BNC cable. T he w avef orm is as shown in t he figu re below.

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Figure 2-5 Harmonic

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DG800 can output DC sign al with amplitude r ange from -10 V to 10 V (HighZ) or from

-5 V to 5 V (when the load is 50 Ω). The figure below shows a sketch of the DC signal.

Press Menu  Continuous  "DC" to select the DC signal.

Figure 2-6 Sketch of DC signal

Tap the Offset parameter input field to input the desired offset value with the numeric keypad, then selec t the unit. Tap "Ok".

You can also use the arrow keys and the knob to set the parameter value: pr ess down the knob to enter the editing mode, use the arrow keys to move the cursor to select the digit to be ed ited, and then rotate the knob to modify the value.

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To Output Dual-tone Waveform

Press Menu  Continuous  "Dualtone" to enter the dual-tone signal parameter setting interface.

1. Freq1/CentFreq: sets th e output frequency/period of Signal 1 in the dual-tone signal.

2. Freq2/OffsFreq: sets the output freque ncy/perio d of Signal 2 in t he dual-tone signal.

3. Ampl/HighL: sets the output amplitude/high level of the dual-tone signal.

4. Offset/LowL: sets the output offset/low level of the dual-tone signal.

Please refer to "To Output Basic Wav eform" to configure the parameters and output for the channel.

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6 7 8 9

1 2 3 4 5

XOR

PRBS

To Output Advanced Waveform

DG800 prov ides three advanced waveforms: PRBS, RS232, a nd Sequence.

Note: When one channel is set to one of the advanced wavefo rms, the other

channel will automatically switch to the set advanced waveform from other waveform.

PRBS

A PRBS is generated by a linear-feed ba ck shift re giste r (LFSR), as shown belo w.

An LFSR is specified by the number of stages it contains (L) and which stages (taps) feed the exclusive-or (XOR) gates in its f ee dback ne twork. The PR BS output is take n from the last stage. After selecting proper taps, a n L-stage LFSR pro duces a repetitive PRBS of length 2 of PRBS.

Press Menu  Advanced  "PRBS" to open the PRBS parameter setting interface.

1. Bit Rate: sets the output bit rate of the PRBS waveform.

2. Ampl/HighL: sets the output amplitude/high level of the PRBS waveform.

3. Offset/LowL: sets the output offset/low level of the PRBS waveform.

4. Data: selects the data type of the PRBS waveform to PRBS7, PRBS 9, PRBS11, resulting in sequences of 127, 511, and 2047 bits in length. By default, it is PRBS7.

Please refer to "To Output Basic Wav eform" to configure the parameters and output for the channel.

-1. The clock frequency of LFSR determines the "bit rate"

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RS232

In RS232 s erial prot o col, a charac ter is transm itted as a frame o f data. The frame consists of 1 start bit, 5-8 data bits, 0-1 check bit, and 1-2 stop bits. Its format diagram is as shown in the figure below . RS232 uses "Negative Logic", i.g. high level is logic "0" and low level is logic "1".

Press Menu  Advanced  "RS232" to open the RS232 waveform parameter setting interface.

1. Baud Rate: sets the output baud rate of RS232 waveform.

2. Ampl/HighL: sets the output amplitude/high level of RS232 waveform.

3. Offset/LowL: sets the output offset/low level of RS232 waveform.

4. Data Bits: sets the data bits of RS232 waveform to 5, 6, 7, or 8.

5. Stop Bits: sets the stop bits of RS232 waveform to "1", "1.5", or "2".

6. Parity Bit: sets the check bit of RS232 waveform to "Odd", "Even", or "None".

7. Data: sets the data of RS232 waveform. The available value is from 0 to 2 5 5. Please refer to "To Output Basic Wav eform" to configure the parameters and

output for the channel.

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Sequence

You can self-define the sequence, and the edited waveforms can be stored in the internal or external memory of the instrument in "*.SEQ" format.

Press Menu  Advanced  "Sequence" to open the Sequence parameter setting interface. Tap the icon at the upper-right corner of the interface to enter the

Sequence editing interface, as shown in the figure below.

Figure 2-7 Sequence Editing Interface

No.: indicates the serial number represented by "n". The available range of "n" is from 1 to 8.

Wave: selects the waveform that corresponds to the current No. Period: sets the number of cyc les of the currently selected waveform in "n".

Tap "Ok" to confirm the current editing and go back to the Sequence parameter setting interface. You can preview the cur rently se t w a vef orms in the right sec tion of the interface and set the waveform parameters at the left section of the interface. Tap "Store" to save the currently edited Sequence waveform to the internal non-volatile memory (Disk C) or the external memory (Disk D, when a USB storage device is inserted).

1. Filter: selects the filter type of Sequence.  Smooth: The frequency response is relatively wide and flat. The edge time

is fast but the sharp transitions will have overshoot and ringing.

 Step: The sharp transitions are relatively ideal, with a narrower frequency

bandwidth and the edge time is relatively slow.

 Interpolation: An abrupt change may occur among the output

points-to-points. The edge time c an be adjustable.

2. Samp. Rate: sets the output sample rate of Sequence.

3. Ampl/HighL: sets the output amplitude/high level of Sequence.

4. Offset/LowL: sets the output offset/low level of Sequence.

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5. Phase: sets the output start phase of Sequence.

6. Edge Time: sets the edge time of Sequence.

Please refer to "To Output Basic Wav eform" to configure the parameters and output for the channel.

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Modulation

DG800 can output modulated waveforms from a single c hannel or from dual channels at the same time. Modulation is the process of modifying certain parameters (e.g. amplitude, frequency, or phase) of the carrier waveform signal according to the changes of the modulating signal. The ca rrier wave form can be Sine, Square , R amp , Ar bitrary waveform, or Pulse (only in PWM). The modulating waveform can be f rom internal or e xternal m odulation s ou rce. The mo dulation t ype s supported by DG800 include AM, FM, PM, ASK, FSK, PSK, and PWM.

Amplitude Modulation (AM)

For amplitude modulation (AM), the amp litude of the carrier waveform varies with the instantaneous voltage of the modulating waveform.

To Select AM Modulation

Press Menu  Modulation  "AM" to enable the AM function . When Modulation is enabled, Sweep or Burst will be automatically disabled (if enable d currently). Tap

the icon at the upper-right corner of the interface (when Sine is sele cted as the carrier waveform) to view and set the parameters of the c u rr ent carrier waveform.

Tap the icon at the upper-right corner of the interface again to go back to the current modulation parameter interface.

To Select the Carrier Waveform

AM carrier waveform could be Sine, Square, Ramp, or Arbitrary waveform. The default is Sine.

 Press Menu  Continuous to select the desired carrier waveform.  Pulse, Noise, Harmonic, Dual-tone, and DC could not be used as carrier

waveform.

To Set Carrier Waveform Parameters

The different settings of various parameters (e.g. frequency, amplitude, offset, and start phase) of the carrier waveform will affect the output AM modulated waveform. For different carrier waveform shapes, the ranges of the various parameters are different (the ra nges are relat ed to t he instrument model that you are using and the currently selected carrier waveform). For all carrier waveform shapes, the default values are 1 kHz frequency, 5 Vpp amplitude, 0 Vdc offset, and 0° start phase.

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 When the carrier waveform currently selected is Sine, Square, or Ramp, please

refer to descriptions in "To Output Basic Waveform" to set the parameters of the carrier wavefor m currently selected.

 When the carrier waveform currently selected is arbitrary waveform, please

refer to descriptions in "To Output the Arbitrary Waveform" to set the parameters of the carrier waveform currently selected.

To Select Modulation Source

DG800 can receive mod ulating waveform from the internal or external modulation source. Tap the Source parameter sele ction field to select an "Internal" or "External" modulation source.

1. Internal So u r c e

When the internal modulat ion source is selected, tap the Mod.Wave parameter selection field to select Sine, Square, Triangle, UpRamp, DnRamp, Noise, or Arb as modulating waveform. By default, Sine is selected.

 Square: 50% duty cycle.  Triangle: 50% symmetry.  UpRamp: 100% symmetry.  DnRamp: 0% symmetry.  Arb: the arbitrary waveform selec ted for the current channel.

Note: Noise can be used as the modulating waveform but cannot be used as

carrier waveform.

2. External Source

When the external modulation source is selected, Mod.Wave and Mod.Freq will be grayed out and disabled. The generator receives the external modulating signal from the rear-panel [CH1/Sync/Ext Mod/Trig/FSK] connector. At this time, amplitude of the modulated wa vefo rm is controlled by the ±5 V sig nal le vel of the connector. For example, if the modulation depth i s set to 100%, the output amplitude will be the maximum when the modulating signal is +5 V and the minimum when the modulating signal is -5 V.

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Key Points:

4. Press Output1 to enable the output of CH1.

How to realize the intermodulation between dual channels? The following example takes the output signal of CH2 as the modulating waveform.

1. Connect the CH2 output ter minal to the rear-panel [CH1/Sync/Ext

2. Select CH1, then press Menu  Modulation to s elect the desired

3. Select CH2 and set the desired modulating waveform and the corresponding

To Set Modulating Waveform Frequency

When the internal modulat ion sou rce is sele cted, ta p the Mod.Freq parameter input field, use the numeric keypad to input the modulating waveform frequency.

 You can also use the arrow key s and the knob to input a desired frequency  The modulating waveform frequency ranges from 2 mHz to 1 MHz, and the

Note: When the external modulation source is select ed, this menu will be grayed out

and disabled.

To Set the Modulation Depth

Modulation depth indicates the amplitude variation. It is expressed in per c entage. The AM modulation depth ranges from 0% to 120%. Tap the Mod.Depth parameter input field to set the AM modulation depth.

 At 0% depth, the output amplitude is half of the carrier waveform amplitude.  At 100% depth, the o utput amplitude is equal to carrier waveform amplitude.  At >100% depth, the output amplitude of t he instrument will n ot exceed 10 Vpp

When the external modulatio n source is selected, the output amplitude of the instrument is controlled by the ±5 V signal level of the rear-panel [CH1/Sync/Ext Mod/Trig/FSK] connector. For example, if the modulation depth is set to 100%, the output amplitude will b e the maximum when the modulating signal is +5 V and the minimum when the mod ulating signal is -5 V.

Mod/Trig/FSK] connector by using the dual BNC cable.

modulation type and set the corresponding parameters. After that, select the external modulation source.

parameters.

value. default value is 100 Hz.

(into a 50 Ω load).

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Carrier Waveform Suppression

DG800 supports two typ es of amplitude modulation: normal amplitude modulation and double sideband su ppressed carrier (DSS C) amplitude mo dulation. In the n ormal amplitude modulation, the modulated waveform co ntains carrier waveform components. Because carrier waveform components carry no information, the modulation is less efficient. In order to im prove the modulation efficien cy, the carrier waveform components are suppressed on the basis of the normal amplitude modulation. At this time, the modulated waveforms all carry information. This method is called double sid eband suppressed carrier modulation. By default, DG800 selects the normal amplitude modulation . Tap the DSSC parameter selection field to select "On" to enable the d ouble sideband suppressed carrier modulation.

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Frequency Modulation (FM)

For frequency m odulation (FM), the frequency of the carrier waveform varies with the instantaneous voltage of the modulating waveform.

To Select FM Modulation

Press Menu  Modulation  "FM" to enable t he FM f unction. When Modulation is enabled, Sweep or Burst will be automatically disabled (if enable d currently). Tap

the icon at the upper-right corner of the interface (when Sine is sele cted as the carrier waveform) to view and set the para me ters of the current carrier waveform.

Tap the icon at the upper-right corner of the interface again to go back to the current modulation parameter interface.