Function Limitation | Agilent Technologies U2761A manual

Features and Functions

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Function Limitation

If you change to a function where the maximum frequency is less than the current function, the frequency will be adjusted to the maximum value for the new function.

For example, if you are currently outputting a 20 MHz sine wave and then change to the Ramp function, the U2761A will automatically adjusts the output frequency to 200 kHz (the upper limit for Ramp).

Amplitude Limitation

If you change to a function where the maximum amplitude is less than the current function, the amplitude will automatically be adjusted to the maximum value for the new function. This may occur when the output units are Vrms or dBm due to the differences in crest factor for the various output functions.

For example, if you output a 2.5 Vrms Square wave (into 50 Ω) and then change to the Sine wave function, the U2761A will automatically be adjusted the output amplitude to 1.768 Vrms (the upper limit for Sine wave in Vrms).

U2761A User’s Guide

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Agilent Technologies U2761A manual Function Limitation

Contents

User’s Guide U T I O N Warn in G Safety Symbols General Safety Information Environment Conditions Complies with the following safety and EMC requirements Regulatory Markings Affixed product label is shown as below Product Category Declaration of Conformity Regulatory Information for Australia/New Zealand This Guide… Contents Introduction Output Function Phase Modulation PM To Select PM Index List of Figures XVI List of Tables Xviii Getting Started Introduction Various features of the U2761A Product at a Glance Product OutlookBumpers Power inlet Fan Ventilation Pin backplane connector USB inlet Dimensions Without Bumpers Product Dimensions105.00 mm 175.00 mm 18.00 mm 25.00 mm Dimensions With Bumpers 117.00 mm 180.00 mm 15.00 mm41.00 mm Standard Purchase Items General Maintenance Inspection and MaintenanceInitial Inspection Electrical Check Installation and Configuration InstallationWith Agilent VEE Pro, LabVIEW, or Microsoft Visual Studio Hard-disk space 1 GB Check Your System Install the IO Libraries Suite Install the Module Driver Install the Agilent Measurement Manager Getting Started Proceeding Connect the Module to Your PC Getting Started Select Ignore to disable the warning message Follow the instructions belowDriver Signing Options dialog box will appear Getting Started Verify Your Module Connection Send Commands To This Instrument Launch Your Agilent Measurement Manager IO Control will launch automatically when you start your PC Agilent Measurement Manager help file Description Pin Backplane Connector Pin Configuration Chassis Installation Triggering Pulse Waveform Introduction Output ConfigurationOutput Function 1Output functions Function Limitation 1U2761A soft front panel Waveform pattern selection Waveform parameters 2Output frequency range Output Frequency Function Limitations Offset Voltage Limitations Output Amplitude Limits Due to Units Selection Limits Due to Amplitude DC Offset Voltage VOLTageOFFSet offset Output Units Output Termination OUTPutLOAD ohmsINFinity 7Square wave duty cycles Duty Cycle Square Waves APPLy command automatically sets the duty cycle to 50% 9Ramp wave duty cycles Symmetry Ramp Wave 11Panel view of the output section Output Control Example 1, To output a DC voltage Set Output Using Scpi Commands Example 2, To output a Sine wave Example 4, To output a Ramp wave Pulse Period Pulse Waveform 13Panel view of the pulse width section Pulse Width Duty Cycle = 100 ⋅ Pulse Width / Period Pulse Duty Cycle Example Generate Pulse Waveform Using Scpi Commands Amplitude Modulation AM To Select AMModulating frequency AM depth 15Panel view of AM Carrier Waveform 3Carrier frequency for AM Carrier Frequency Modulating Waveform Default modulating waveform is Sine wave Modulating Waveform Frequency Modulation DepthPeak into a 50 Ω load Generate AM Using Scpi Commands Frequency Modulation FM To Select FMModulating frequency FM deviation FMSTATe Offon 4Carrier frequency for FM FMINTernalFUNCtion SINusoidSQUareRAMPNRAMpTRIangleUSER Frequency Deviation Generate FM Using Scpi Commands Phase Modulation PM Modulating frequency Phase deviationTo Select PM PMSTATe Offon 5Carrier frequency for PM Default waveform is Sine wave Generate PM Using Scpi Commands Phase Deviation Frequency-Shift Keying FSK Modulation To Select FSK ModulationFSK rate Hop frequency FSKeySTATe Offon 6Carrier frequency for FSK FSK Carrier Frequency 7Hop frequency FSK Hop Frequency FSK Rate Generate FSK Modulation Using Scpi Commands Phase-Shift Keying PSK Modulation To Select PSK ModulationPSK rate PSK deviation PSKeySTATe Offon 8Carrier frequency for PSK PSK Carrier Frequency PSK Deviation PSK Rate Generate PSK Modulation Using Scpi Commands Amplitude-Shift Keying ASK Modulation To Select ASK ModulationASK rate ASKeySTATe Offon 9Carrier frequency for ASK ASK Rate Generate ASK Modulation Using Scpi Commands Frequency Sweep To Select SweepFrequency Linear type Start frequency Stop frequency 28Panel view of sweep Start Frequency and Stop Frequency Sweep Time Sweep Mode Sweep Trigger Source Set Frequency Sweep Using Scpi Commands Trigger Source Choices Triggering Manual Triggering Internal Triggering External Triggering Trigger Output Signal Trigger Input SignalTrigger Rising edge shown Trigger out 500 μs Rising edge shown OUTPutTRIGger Offon OUTPutTRIGgerSLOPe POSitiveNEGative Set Triggering Using Scpi Commands To Create and Store an Arbitrary Waveform Arbitrary Waveforms Select the Arbitrary waveform function Exiting the waveform editor Features and Functions Characteristics and Specifications Operating Environment Product Characteristics Waveforms Product Specifications and Characteristics Ramp, Triangle ±1% of settling ±5 mV ±10 mV @ Hi-Z Units Vpp, Vrms, dBm Resolution Digits±5 V across open circuit Accuracy ±8 ppm in 1 year Modulation Sweep Characteristics 102 Index Offset. Refer to DC offset United States Tel 800 829