Agilent Technologies
Agilent U2761A USB Modular Function/Arbitrary Waveform Generator
User’s Guide
Safety Notices
Warranty
Notices
C A U T I O N
U2761A User’s Guide
Safety Symbols
WARN IN G
General Safety Information
C A U T I O N
Do not operate the product in an explosive atmosphere or in the
U2761A User’s Guide
Environment Conditions
Requirements
Regulatory Markings
U2761A User’s Guide
Waste Electrical and Electronic Equipment WEEE Directive 2002/96/EC
Do not dispose in domestic household waste
VIII
Declaration of Conformity
U2761A User’s Guide
Standard
Additional Information
U2761A User’s Guide
1Performance Criteria
Regulatory Information for Canada
3 Characteristics and Specifications
2 Features and Functions
In This Guide…
1 Getting Started
Installation
Contents
Chassis Installation
XVII
Features and Functions
Contents
Phase Deviation
Phase Modulation PM
Contents
To Select PM
Index
Product Specifications and Characteristics
Contents
3 Characteristics and Specifications
AM waveform
List of Figures
FM waveform
PM waveform
U2761A User’s Guide
List of Tables
Table 1-1 Synchronous Simultaneous Interface SSI connector
U2761A User’s Guide
Carrier frequency for PSK
U2761A User’s Guide
XVIII
Agilent U2761A USB Modular Function Generator User’s Guide
Getting Started
Agilent Technologies
1 Getting Started
Various features of the U2761A
Introduction
Product Outlook
Product at a Glance
Top View
U2761A User’s Guide
Rear View
Front View
USB indicator Power indicator 10 MHz reference connector
Trigger in connector Output connector Trigger out connector
Dimensions Without Bumpers
Product Dimensions
Top View
Front View
Top View
Dimensions With Bumpers
Front View
1 Getting Started
U2761A User’s Guide
Standard Purchase Items
General Maintenance
Inspection and Maintenance
Initial Inspection
Electrical Check
Installation
Installation and Configuration
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U2761A User’s Guide
Hard-disk space 1 GB
A. Check Your System
1 Getting Started
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B. Install the IO Libraries Suite
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U2761A User’s Guide
1 Getting Started
C. Install the Module Driver
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U2761A User’s Guide
D. Install the Agilent Measurement Manager
10 Fill in the Customer Information Form accordingly and click Next
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1 Getting Started
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E. Connect the Module to Your PC
Yes, this time only and click Next to proceed
U2761A User’s Guide
U2761A User’s Guide
1 Getting Started
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Select Ignore to disable the warning message
follow the instructions below
Go to Start Control Panel and double-click System
8 The Assign USB device alias window will appear. Each time the U2761A is plugged in, this dialog box will appear. To
1 Getting Started
U2761A User’s Guide
F. Verify Your Module Connection
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1 Getting Started
Send Commands To This Instrument
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G. Launch Your Agilent Measurement Manager
Double-click the Measurement Manager software icon on
software
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For more information on how to use the Measurement Manager, refer to
1 Getting Started
the Agilent Measurement Manager help file
SSI timing signal
55-Pin Backplane Connector Pin Configuration
U2761A User’s Guide
Getting Started
1 Getting Started
Chassis Installation
Output Configuration
Features and Functions
Phase Modulation PM
Phase-Shift Keying PSK Modulation
Introduction
Output Configuration
Output Function
2 Features and Functions
U2761A User’s Guide
Function Limitation
Amplitude Limitation
2 Features and Functions
Soft Front Panel Operation
Waveform pattern selection Waveform parameters
Figure 2-1 U2761A soft front panel
U2761A User’s Guide
Output Frequency
Remote Interface Operation
Duty Cycle Limitations
Function Limitations
2 Features and Functions
Soft Front Panel Operation
Offset Voltage Limitations
Output Amplitude
Limits Due to Output Termination
The default amplitude is 1 Vpp into 50 Ω for all functions
2 Features and Functions
Limits Due to Units Selection
Soft Front Panel Operation
Figure 2-4 Panel view of the amplitude section
Limits Due to Amplitude
DC Offset Voltage
The default offset is 0 V for all functions
Remote Interface Operation
Soft Front Panel Operation
2 Features and Functions
Remote Interface Operation
Figure 2-5 Panel view of the DC offset section
Soft Front Panel Operation
Output Units
Remote Interface Operation
VOLTageUNIT VPPVRMSDBM
2 Features and Functions
Output Termination
Remote Interface Operation
Soft Front Panel Operation
Figure 2-6 Panel view of the Tools menu
U2761A User’s Guide
Duty Cycle
Duty Cycle Square Waves
Limits Due to Frequency
2 Features and Functions
Remote Interface Operation
Soft Front Panel Operation
Figure 2-8 Panel view of the duty cycle section
U2761A User’s Guide
2 Features and Functions
Symmetry Ramp Wave
Soft Front Panel Operation
0% Symmetry
Remote Interface Operation
Output Control
Soft Front Panel Operation
Figure 2-11 Panel view of the output section
2 Features and Functions
Set Output Using SCPI Commands
Remote Interface Operation
Example 1, To output a DC voltage
U2761A User’s Guide
Example 2, To output a Sine wave
Example 3, To output a Square wave
Example 4, To output a Ramp wave
2 Features and Functions
Pulse Period
Pulse Waveform
Soft Front Panel Operation
Remote Interface Operation
2 Features and Functions
Pulse Width
Soft Front Panel Operation
Remote Interface Operation
Soft Front Panel Operation
Pulse Duty Cycle
Remote Interface Operation
Duty Cycle = 100 ⋅ Pulse Width / Period
Example
Generate Pulse Waveform Using SCPI Commands
2 Features and Functions
U2761A User’s Guide
Amplitude Modulation AM
To Select AM
2 Features and Functions
Carrier Waveform
Soft Front Panel Operation
Remote Interface Operation
Remote Interface Operation
Carrier Frequency
Figure 2-16 Panel view of the Arbitrary waveform
Table 2-3 Carrier frequency for AM
2 Features and Functions
Modulating Waveform
The default modulating waveform is Sine wave
Soft Front Panel Operation
Modulation Depth
Modulating Waveform Frequency
default modulation depth is 100%
N O TE
Example
Generate AM Using SCPI Commands
2 Features and Functions
U2761A User’s Guide
Frequency Modulation FM
To Select FM
Carrier Waveform
2 Features and Functions
Soft Front Panel Operation
Remote Interface Operation
Remote Interface Operation
Carrier Frequency
Table 2-4 Carrier frequency for FM
U2761A User’s Guide
Modulating Waveform
2 Features and Functions
Soft Front Panel Operation
Remote Interface Operation
Modulating Waveform Frequency
Frequency Deviation
Soft Front Panel Operation
Remote Interface Operation
2 Features and Functions
Generate FM Using SCPI Commands
Soft Front Panel Operation
Remote Interface Operation
U2761A User’s Guide
Phase Modulation PM
To Select PM
Carrier Waveform
2 Features and Functions
Soft Front Panel Operation
Remote Interface Operation
Remote Interface Operation
Carrier Frequency
Soft Front Panel Operation
Remote Interface Operation
The default waveform is Sine wave
2 Features and Functions
Modulating Waveform
Modulating Waveform Frequency
Generate PM Using SCPI Commands
Phase Deviation
0 to 360 . The default phase deviation setting is
Soft Front Panel Operation
2 Features and Functions
Frequency-Shift Keying FSK Modulation
To Select FSK Modulation
Soft Front Panel Operation
Carrier Waveform
Remote Interface Operation
Soft Front Panel Operation
2 Features and Functions
FSK Carrier Frequency
Remote Interface Operation
Soft Front Panel Operation
Soft Front Panel Operation
FSK “Hop” Frequency
Remote Interface Operation
frequency is 100 Hz for all functions
FSK Rate
Generate FSK Modulation Using SCPI Commands
2 Features and Functions
Soft Front Panel Operation
U2761A User’s Guide
Phase-Shift Keying PSK Modulation
To Select PSK Modulation
Carrier Waveform
2 Features and Functions
Soft Front Panel Operation
Remote Interface Operation
Remote Interface Operation
PSK Carrier Frequency
Soft Front Panel Operation
Remote Interface Operation
PSK Deviation
PSK Rate
2 Features and Functions
Soft Front Panel Operation
U2761A User’s Guide
Generate PSK Modulation Using SCPI Commands
Example
2 Features and Functions
Amplitude-Shift Keying ASK Modulation
To Select ASK Modulation
Soft Front Panel Operation
Carrier Waveform
Remote Interface Operation
Soft Front Panel Operation
Carrier Frequency
2 Features and Functions
Remote Interface Operation
Soft Front Panel Operation
ASK Rate
Generate ASK Modulation Using SCPI Commands
Soft Front Panel Operation
Remote Interface Operation
To Select Sweep
Frequency Sweep
2 Features and Functions
Soft Front Panel Operation
Remote Interface Operation
Start Frequency and Stop Frequency
Soft Front Panel Operation
Figure 2-28 Panel view of sweep
Sweep Time
Sweep Mode
2 Features and Functions
Remote Interface Operation
Soft Front Panel Operation
Sweep Trigger Source
Remote Interface Operation
Soft Front Panel Operation
2 Features and Functions
Set Frequency Sweep Using SCPI Commands
Remote Interface Operation
Example
Trigger Source Choices
Triggering
Soft Front Panel Operation
U2761A User’s Guide
Manual Triggering
Internal Triggering
2 Features and Functions
Remote Interface Operation
Remote Interface Operation
External Triggering
Soft Front Panel Operation
Remote Interface Operation
Trigger Output Signal
Trigger Input Signal
2 Features and Functions
Trigger in Rising edge shown Figure 2-29 Trigger input pulse
Remote Interface Operation
Soft Front Panel Operation
falling edge, select Positive for rising edge and
U2761A User’s Guide
Example
Set Triggering Using SCPI Commands
2 Features and Functions
U2761A User’s Guide
Arbitrary Waveforms
To Create and Store an Arbitrary Waveform
1 Select the Arbitrary waveform function
2 Features and Functions
2 Set the waveform period
3 Set the waveform voltage limits
7 Sending waveform to the U2761A
6 Start waveform editing process
8 Saving the waveform
9 Exiting the waveform editor
U2761A User’s Guide
2 Features and Functions
Product Characteristics Product Specifications and Characteristics
Characteristics and Specifications
Agilent Technologies
Agilent U2761A USB Modular Function Generator User’s Guide
3 Characteristics and Specifications
Product Characteristics
POWER CONSUMPTION
SAFETY COMPLIANCE
WAVEFORM CHARACTERISTICS Sine
Product Specifications and Characteristics
WAVEFORMS
Square
Pulse
Ramp, Triangle
Arbitrary
3 Characteristics and Specifications
DC offset
COMMON CHARACTERISTICS Amplitude
Main output
Internal frequency reference
3 Characteristics and Specifications
MODULATION AM
TRIGGER CHARACTERISTICS Trigger input
SWEEP CHARACTERISTICS
Trigger output
U2761A User’s Guide
U2761A User’s Guide
3 Characteristics and Specifications
U2761A User’s Guide
Index
limits
phase noise PM
L-Mount kit 7
offset. Refer to DC offset
Agilent Technologies, Inc First Edition, April 30 U2761-90000