Lts, About Arbitrary Waveforms

Chapter 3 Using HP BenchLink/Arb

About Arbitrary Waveforms

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waveshape. Refer to chapter 7 in the HP 33120 User’s Guide for additional information about sampling.

When possible, you should always send the maximum number of data points. The more data points you send, the greater the fidelity of the function generator output. HP BenchLink/Arb contains a special function to allow you to expand any waveform to the maximum number of data points.

The relative amplitude (Y values) of your waveform can range from -1 to +1. This is a ‘relative’ amplitude because the function generator output voltage will be scaled to these values. You set the desired output peak-to-peak voltage when you send the waveform to the function generator. For example, a square wave in the waveform edit window that ranges from -1 to +1 can be output as a 1 volt peak-to-peak waveform. The +1 relative amplitude is scaled to +0.5 volts and the -1 relative amplitude is scaled to -0.5. The square wave will be centered around 0 volts.