Rigol DG5071, User Manual

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RIGOL Chapter 4 Common Modulation Output
User’s Guide for DG5000 4-22
To Set Modulating Waveform Frequency
When internal modulation source is selected, press PWM Freq to set the frequency of
the modulating waveform.

Input the desire frequency value using numeric keyboard or knob.

The available frequency ranges from 2 mHz to 50 kHz, and the default value is
100Hz.
Notice that, this menu will be grayed out and disabled when external source is
selected.
To Set Pulse Width/Duty Cycle Deviation
Press WidthDeV
(or “DutyDev”), input the desired value using numeric keyboard or
knob.

Width Deviation represents the variation in width (in seconds) in the modulated
waveform from the width of the original pulse waveform.
Pulse width range: 0 s to 500 ks.
Width deviation cannot exceed the current pulse width.
Width deviation is limited by the minimum pulse width and current edge time
setting.

Duty Cycle Deviation represents the variation in duty cycle (in %) of the
modulated waveform from the duty cycle of the original pulse waveform.
Duty cycle deviation range: 0% to 50%.
Duty cycle deviation cannot exceed the current duty cycle deviation.
Duty cycle deviation is limited by the minimum duty cycle and current edge time
setting.
When external source is selected, width deviation (or duty cycle deviation) is
controlled by the ±6 V signal level of the [Mod In] connector at the rear panel. For
example, if the width deviation is set as 10s, +6 V signal level corresponds to 10 s
width change.
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