Keysight Technologies 33210A - Modulating Source

3 Features and Functions
104 Keysight 33210A User’s Guide
Modulating Source
The function generator will accept an internal or external modulation source for
PWM.
–Modulating source: Internal or External. The default is Internal.
–If you select the External source, the pulse waveform is modulated with an
external waveform. The width deviation or duty cycle deviation is controlled by
the ±5V signal level present on the rear-panel Modulation In connector.
For example, if you have set the duty cycle to 10% and the duty cycle deviation
to 5%,
then when the modulating signal is at +5 volts, the output will be at the
maximum duty cycle (15%). When the modulating signal is at -5 volts, the output
will be at the
minimum duty cycle (5%).
– Front-Panel Operation: After enabling PWM, press the Source softkey.
– Remote Interface Operation:
PWM:SOURce {INTernal|EXTernal}
Modulation
In
+5 V
0V
-5 V