Agilent Technologies AGILENT U2761A Uživatelská příručka

Agilent TechnologiesAgilent U2761A USB Modular Function/Arbitrary Waveform GeneratorUser’s Guide

X U2761A User’s GuideIn This Guide…1Getting StartedIn this chapter, you prepare your system for installation and configuration to get started with the

82 U2761A User’s Guide2 Features and FunctionsRemote Interface OperationFREQuency:STARt <frequency>FREQuency:STOP <frequency>Sweep ModeYou

Features and Functions 2U2761A User’s Guide 83Soft Front Panel OperationOn the Sweep Time panel as shown in Figure 2- 28, input the desired sweep time

84 U2761A User’s Guide2 Features and FunctionsTo specify whether the U2761A is triggered on the rising or falling edge of the signal from the Trig In

Features and Functions 2U2761A User’s Guide 85TriggeringApplies to sweep only. You can issue triggers for sweeps using Internal (immediate) triggering

86 U2761A User’s Guide2 Features and FunctionsRemote Interface OperationTRIGger:SOURce {IMMediate|EXTernal|BUS}Internal TriggeringIn the Internal trig

Features and Functions 2U2761A User’s Guide 87Remote Interface OperationTRIGger:SOURce BUSWhen the BUS source is selected, send the TRIG or *TRG comma

88 U2761A User’s Guide2 Features and FunctionsTrigger Input SignalFigure 2-29 Trigger input pulseThe device connector is used for Triggered Sweep Mode

Features and Functions 2U2761A User’s Guide 89When the Internal (immediate) trigger source is selected, the U2761A outputs a Square waveform with a 50

90 U2761A User’s Guide2 Features and FunctionsSet Triggering Using SCPI CommandsExample 1-> *CLS; *RST //To reset the U2761A to default power-on st

Features and Functions 2U2761A User’s Guide 91Arbitrary WaveformsThere are three built-in Arbitrary waveforms offered. The U2761A supports the Arbitra

U2761A User's Guide XIContents1Getting Started1Introduction 2Product at a Glance 3Product Outlook 3Product Dimensions 5Dimensions Without Bumpers

92 U2761A User’s Guide2 Features and Functions1 Select the Arbitrary waveform function.Click Arb to select the Arbitrary function.2 Set the wavefor

Features and Functions 2U2761A User’s Guide 936 Start waveform editing process.Click to begin the freehand draw mode or to enable line draw mode.

94 U2761A User’s Guide2 Features and Functions8 Saving the waveform.To save the waveform for future use, click . Then, select Compatible With Intuil

95Agilent TechnologiesAgilent U2761A USB Modular Function/Arbitrary Waveform Generator User’s Guide3Characteristics and SpecificationsProduct Characte

96 U2761A User’s Guide3 Characteristics and SpecificationsProduct CharacteristicsREMOTE INTERFACE• Hi-Speed USB 2.0• USBTMC 488.2 Class devicePOWER CO

Characteristics and Specifications 3U2761A User’s Guide 97Product Specifications and CharacteristicsWAVEFORMSStandard Sine, Square, Ramp, Triangle, Pu

98 U2761A User’s Guide3 Characteristics and SpecificationsRamp, TriangleFrequency range 1 μHz to 200 kHz (1 μHz resolution)Linearity <0.2% of peak

Characteristics and Specifications 3U2761A User’s Guide 99COMMON CHARACTERISTICSAmplitudeRange 40 mVpp to 5 Vpp (Into 50 Ω load)80 mVpp to 10 Vpp (Int

100 U2761A User’s Guide3 Characteristics and SpecificationsMODULATIONAMCarrier waveforms Sine, Square, Ramp, ArbitrarySource InternalInternal modulati

Characteristics and Specifications 3U2761A User’s Guide 1011 Add 1/10th of output amplitude and offset specification per °C for operation outside the

XII U2761A User's GuideOutput Frequency 29Output Amplitude 31DC Offset Voltage 33Output Units 35Output Termination 36Duty Cycle (Square Waves) 38

102 U2761A User’s Guide3 Characteristics and Specifications

U2761A User’s Guide 103IndexIndexAAccuracy 99AgilentAutomation-Ready CD 7, 10, 11Connection Expert 19IO Libraries Suite 14.2 10Measurement Manager 10,

104 U2761A User’s GuideIndexLlimitsamplitude 27, 33duty cycle 30frequency 38function 27, 30offset voltage 31output termination 31units selection 32L

www.agilent.comAgilent Technologies© Agilent Technologies, Inc., 2008-2009Third Edition, January 31, 2009U2761-90000Contact usTo obtain service, warra

U2761A User's Guide XIIITo S ele ct PM 61Carrier Waveform 62Carrier Frequency 63Modulating Waveform 64Modulating Waveform Frequency 64Phase Devia

XIV U2761A User's GuideSweep Trigger Source 83Set Frequency Sweep Using SCPI Commands 84Triggering 85Trigger Source Choices 85Internal Triggering

U2761A User’s Guide XVList of FiguresFigure 1-1 55-pin backplane connector pin configuration 23Figure 2-1 U2761A soft front panel 28Figure 2-2 Top pan

XVI U2761A User’s GuideFigure 2-30 Trigger output pulse 88Figure 2-31 Ramp waveform 91Figure 2-32 Waveform download in progress 93

U2761A User’s Guide XVIIList of TablesTa b l e 1-1 Synchronous Simultaneous Interface (SSI) connector pin description 23Ta b l e 2-1 Output function

XVIII U2761A User’s Guide

1Agilent TechnologiesAgilent U2761A USB Modular Function/Arbitrary Waveform Generator User’s Guide1Getting StartedIntroduction 2Product at a Glance 3P

II U2761A User’s GuideNotices© Agilent Technologies, Inc., 2008-2009No part of this manual may be reproduced in any form or by any means (including el

2 U2761A User’s Guide1Getting StartedIntroductionThe U2761A is a 20 MHz USB modular function generator with Arbitrary waveform and pulse generation ca

Getting Started 1U2761A User’s Guide 3Product at a GlanceProduct Outlook Top Vie wBumpers

4 U2761A User’s Guide1Getting StartedFront ViewRear ViewUSB indicatorPower indicator10 MHz reference connectorTrigger in connectorTrigger out connecto

Getting Started 1U2761A User’s Guide 5Product DimensionsDimensions Without BumpersTop Vie w105.00 mm175.00 mm18.00 mmFront View25.00 mm

6 U2761A User’s Guide1Getting StartedDimensions With BumpersTop Vie w117.00 mm180.00 mm15.00 mmFront View41.00 mm

Getting Started 1U2761A User’s Guide 7Standard Purchase ItemsVerify the following items for the standard purchase of the U2761A. If there are any miss

8 U2761A User’s Guide1Getting StartedInspection and MaintenanceInitial InspectionWhen you receive your U2761A, inspect the unit for any obvious damage

Getting Started 1U2761A User’s Guide 9Installation and ConfigurationInstallationFollow the step-by-step instructions shown in the following flowchart

10 U2761A User’s Guide1Getting StartedA. Check Your SystemPrior to any installation or configuration, please ensure that your PC meets the following m

Getting Started 1U2761A User’s Guide 11B. Install the IO Libraries Suite The IO Libraries Suite 14.2 or higher is available on the Agilent Automation-

U2761A User’s Guide IIISafety SymbolsThe following symbols on the instrument and in the documentation indicate precautions which must be taken to main

12 U2761A User’s Guide1Getting StartedC. Install the Module Driver1 Verify that your PC meets the minimum system requirements as stated in “A. Check Y

Getting Started 1U2761A User’s Guide 136 Click Install to begin the installation. Follow the instructions on the screen to proceed with the installat

14 U2761A User’s Guide1Getting Started6 Click OK to begin the installation of the listed missing prerequisites.7 Once the above installation has compl

Getting Started 1U2761A User’s Guide 15E. Connect the Module to Your PC1 After the installations have completed, connect the power cord to the AC/DC p

16 U2761A User’s Guide1Getting Started5 Select Install the software automatically (Recommended) and click Next.6 A warning message will appear on the

Getting Started 1U2761A User’s Guide 177 Click Finish to complete the installation.NOTEIf you do not wish to receive similar warning messages in the

18 U2761A User’s Guide1Getting Started8 The Assign USB device alias window will appear. Each time the U2761A is plugged in, this dialog box will appe

Getting Started 1U2761A User’s Guide 19c Click Ye s to begin the firmware download. The following message box will appear indicating the download in

20 U2761A User’s Guide1Getting Started3 A context menu will appear as shown below and select Send Commands To This Instrument.4 The Agilent Interacti

Getting Started 1U2761A User’s Guide 21G. Launch Your Agilent Measurement Manager1 Double-click the Measurement Manager software icon on your desktop

IV U2761A User’s GuideGeneral Safety InformationThe following general safety precautions must be observed during all phases of operation of this instr

22 U2761A User’s Guide1Getting Started3 The Select USB Device dialog box will appear displaying the connected U2761A devices. To start the application

Getting Started 1U2761A User’s Guide 2355-Pin Backplane Connector Pin ConfigurationThe 55-pin backplane connector is used when the U2761A module is in

24 U2761A User’s Guide1Getting StartedChassis InstallationThe L-mount kit is to be installed to your U2761A module. The following instructions describ

25Agilent TechnologiesAgilent U2761A USB Modular Function/Arbitrary Waveform GeneratorUser’s Guide2 Features and FunctionsOutput Configuration 26Pulse

26 U2761A User’s Guide2 Features and FunctionsOutput ConfigurationIntroductionThis section contains the information to help you configure the U2761A f

Features and Functions 2U2761A User’s Guide 27Function LimitationIf you change to a function where the maximum frequency is less than the current func

28 U2761A User’s Guide2 Features and FunctionsSoft Front Panel OperationThe following figure shows the soft front panel of the U2761A.Figure 2-1 U2761

Features and Functions 2U2761A User’s Guide 29To select a function, click any of the functions on the top panel as shown below. When a function is sel

30 U2761A User’s Guide2 Features and FunctionsFunction LimitationsIf you change to a function where the maximum frequency is less than the current fun

Features and Functions 2U2761A User’s Guide 31Remote Interface OperationFREQuency <frequency>You can also use the APPLy command to select the fu

U2761A User’s Guide VEnvironment ConditionsThis instrument is designed for indoor use and in the area with low condensation. The table below shows the

32 U2761A User’s Guide2 Features and FunctionsLimits Due to Units SelectionIn some cases, the amplitude limits are determined by the output units sele

Features and Functions 2U2761A User’s Guide 33Remote Interface OperationVOLTage <amplitude>Or, you can set the amplitude by specifying a high le

34 U2761A User’s Guide2 Features and FunctionsSoft Front Panel Operation On the Offset panel as shown in Figure 2- 5, input the desired offset value a

Features and Functions 2U2761A User’s Guide 35Output UnitsThis configuration applies to output amplitude only. At power-on, the units for output ampli

36 U2761A User’s Guide2 Features and FunctionsOutput TerminationThis configuration applies to output amplitude and offset voltage only. The U2761A has

Features and Functions 2U2761A User’s Guide 37Soft Front Panel OperationClick Tools and select Waveform Gen as shown in the following.Figure 2-6 Pane

38 U2761A User’s Guide2 Features and FunctionsDuty Cycle (Square Waves)The duty cycle of a Square wave represents the amount of time per cycle that th

Features and Functions 2U2761A User’s Guide 39The duty cycle setting does not apply to a Square waveform used as the modulating waveform for AM, FM, o

40 U2761A User’s Guide2 Features and FunctionsSymmetry (Ramp Wave)This configuration applies to Ramp wave only. Symmetry represents the amount of time

Features and Functions 2U2761A User’s Guide 41Remote Interface OperationFUNCtion:RAMP:SYMMetry <percent>The APPLy command automatically sets th

VI U2761A User’s GuideRegulatory MarkingsThe CE mark is a registered trademarkof the European Community.This CEmark shows that the product complieswit

42 U2761A User’s Guide2 Features and FunctionsRemote Interface OperationOUTPut {0|OFF|1|ON}The APPLy command overrides the current setting and automa

Features and Functions 2U2761A User’s Guide 43Example 2, To output a Sine waveExample 3, To output a Square wave-> *CLS; *RST //To reset the U2761A

44 U2761A User’s Guide2 Features and FunctionsExample 4, To output a Ramp wave-> *CLS; *RST //To reset the U2761A to default power-on state, this c

Features and Functions 2U2761A User’s Guide 45Pulse WaveformAs shown below, a Pulse waveform consists of a period, a pulse width, a rising edge, and a

46 U2761A User’s Guide2 Features and FunctionsPulse WidthThe pulse width represents the time from the 50% threshold of the pulse’s rising edge to the

Features and Functions 2U2761A User’s Guide 47Pulse Duty CycleThe pulse duty cycle is defined as:Duty Cycle = 100 × Pulse Width / Periodwhere the puls

48 U2761A User’s Guide2 Features and FunctionsGenerate Pulse Waveform Using SCPI CommandsExample 1-> *CLS; *RST //To reset the U2761A to default po

Features and Functions 2U2761A User’s Guide 49Amplitude Modulation (AM)A modulated waveform consists of a carrier waveform and a modulating waveform.

50 U2761A User’s Guide2 Features and FunctionsSoft Front Panel OperationClick Mod and then select AM as shown in Figure 2- 15. To output the AM w

Features and Functions 2U2761A User’s Guide 51Figure 2-16 Panel view of the Arbitrary waveformRemote Interface OperationFUNCtion {SINusoid|SQUare|RAMP

U2761A User’s Guide VIIWaste Electrical and Electronic Equipment (WEEE) Directive 2002/96/ECThis instrument complies with the WEEE Directive (2002/96/

52 U2761A User’s Guide2 Features and FunctionsSoft Front Panel OperationOn the Frequency panel as shown in Figure 2- 3, input the desired frequency va

Features and Functions 2U2761A User’s Guide 53Modulating Waveform FrequencyThe range of the modulating waveform frequency is 2 mHz to 20 kHz. The defa

54 U2761A User’s Guide2 Features and FunctionsGenerate AM Using SCPI CommandsExample 1-> *CLS; *RST //To reset the U2761A to default power-on state

Features and Functions 2U2761A User’s Guide 55Frequency Modulation (FM)A modulated waveform consists of a carrier waveform and a modulating waveform.

56 U2761A User’s Guide2 Features and FunctionsSoft Front Panel OperationClick Mod and then select FM as shown in Figure 2- 18. To output the FM

Features and Functions 2U2761A User’s Guide 57Remote Interface OperationFUNCtion {SINusoid|SQUare|RAMP|USER}You can also use the APPLy command to sele

58 U2761A User’s Guide2 Features and FunctionsSoft Front Panel OperationOn the Frequency panel as shown in Figure 2- 3, input the desired frequency va

Features and Functions 2U2761A User’s Guide 59Modulating Waveform FrequencyThe range of the modulating waveform frequency is 2 mHz to 20 kHz. The defa

60 U2761A User’s Guide2 Features and FunctionsSoft Front Panel OperationOn the Deviation panel as shown in Figure 2- 18, input the desired frequency d

Features and Functions 2U2761A User’s Guide 61Phase Modulation (PM)A modulated waveform consists of a carrier waveform and a modulating waveform. The

VIII U2761A User’s GuideDeclaration of ConformityDECLARATION OF CONFORMITY According to EN ISO/IEC 17050-1:2004Generic example Manufacturer’s Name: Ag

62 U2761A User’s Guide2 Features and FunctionsSoft Front Panel OperationClick Mod and then select PM as shown in Figure 2- 20. To output the PM w

Features and Functions 2U2761A User’s Guide 63Remote Interface OperationFUNCtion {SINusoid|SQUare|RAMP|USER}You can also use the APPLy command to sele

64 U2761A User’s Guide2 Features and FunctionsModulating Waveform The modulating waveform consists of Sine, Square, Ramp, Negative Ramp (Nramp), Trian

Features and Functions 2U2761A User’s Guide 65Phase DeviationThe phase deviation setting represents the peak variation in phase of the modulated wavef

66 U2761A User’s Guide2 Features and FunctionsFrequency-Shift Keying (FSK) ModulationFSK is similar to FM except that the frequency alternates between

Features and Functions 2U2761A User’s Guide 67Soft Front Panel OperationClick Mod and select FSK as shown in Figure 2- 22. To output the FSK wave

68 U2761A User’s Guide2 Features and FunctionsRemote Interface OperationFUNCtion {SINusoid|SQUare|RAMP|USER}You can also use the APPLy command to sele

Features and Functions 2U2761A User’s Guide 69FSK “Hop” FrequencyThe maximum alternate (or “hop”) frequency depends on the function selected as shown

70 U2761A User’s Guide2 Features and FunctionsFSK RateThe FSK rate is the rate at which the output frequency “shifts” between the carrier frequency an

Features and Functions 2U2761A User’s Guide 71Phase-Shift Keying (PSK) ModulationPhase-shift keying (PSK) is a form of digital modulation in which the

U2761A User’s Guide IXProduct Regulations Performance Criteria IEC 61326-1:2002 / EN 61326-1:1997+A1:1998+A2:2001+A3:2003CISPR 11:

72 U2761A User’s Guide2 Features and FunctionsSoft Front Panel OperationClick Mod and then select PSK as shown in Figure 2- 24. To output the PSK

Features and Functions 2U2761A User’s Guide 73Remote Interface OperationFUNCtion {SINusoid|SQUare|RAMP|USER}You can also use the APPLy command to sele

74 U2761A User’s Guide2 Features and FunctionsPSK RateThe PSK rate is the rate at which the output phase “shifts” between two preset phases. The range

Features and Functions 2U2761A User’s Guide 75Generate PSK Modulation Using SCPI CommandsExample 1-> *CLS; *RST //To reset the U2761A to default po

76 U2761A User’s Guide2 Features and FunctionsAmplitude-Shift Keying (ASK) ModulationASK is a form of digital modulation in which the modulating signa

Features and Functions 2U2761A User’s Guide 77Soft Front Panel OperationClick Mod and then select ASK as shown in Figure 2- 26. To output the ASK

78 U2761A User’s Guide2 Features and FunctionsRemote Interface OperationFUNCtion {SINusoid|SQUare|RAMP|USER}You can also use the APPLy command to sele

Features and Functions 2U2761A User’s Guide 79ASK RateThe ASK rate is the rate at which the output amplitude “shifts” between two preset amplitudes. T

80 U2761A User’s Guide2 Features and FunctionsFrequency SweepIn the frequency sweep mode, the U2761A “steps” from the start frequency to the stop freq

Features and Functions 2U2761A User’s Guide 81Figure 2-28 Panel view of sweepRemote Interface OperationSWEep:STATe {0|OFF|1|ON}Start Frequency and Sto