Keysight Technologies 33210A User Manual page 197

FUNCtion:SQUare:DCYCle {<percent>|MINimum|MAXimum}
FUNCtion:SQUare:DCYCle? [MINimum|MAXimum]
Set the duty cycle percentage for square waves. Duty cycle represents the amount
of time per cycle that the square wave is at a high level (assuming that the
waveform polarity is not inverted). The default is 50%. MIN selects the minimum
duty cycle for the selected frequency and MAX selects the maximum duty cycle
(see restrictions below). The :DCYC? query returns the current duty cycle setting
in percent.
– Duty Cycle: 20% to 80% (to 5 MHz)
– For square waveforms, the APPLy command overrides the current duty cycle
– The duty cycle setting is remembered when you change from square wave to
– Limits Due to Frequency: If the square wave function is selected and you
– If you select a square waveform as the modulating waveform for AM, FM, or
Keysight 33210A User's Guide
20% Duty Cycle
40% to 60% (to 10 MHz)
setting and automatically selects 50%.
another function. When you return to the square wave function, the previous
duty cycle is used.
change to a frequency that cannot produce the current duty cycle, the duty
cycle is automatically adjusted to the maximum value for the new frequency.
For example, if you currently have the duty cycle set to 70% and then change
the frequency to 6 MHz, the function generator will automatically adjust the
duty cycle to 60% (the upper limit for this frequency). From the remote
interface, a "Settings conflict" error will be generated and the duty cycle will
be adjusted as described.
PWM, the duty cycle setting does not apply. The function generator always
uses a square waveform with a 50% duty cycle.
80% Duty Cycle
Remote Interface Reference 4
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