Keysight 81150A - Width Deviation

Appendix
220
3.11.6 Width Deviation
Introduction
The width deviation represents the variation in width (in seconds) in the
modulated waveform from the width of the original pulse waveform.
Characteristics
 Width deviation: 0 s to 1000 s (see below). The default is 500ps.
 The width deviation cannot exceed the current pulse width.
 The width deviation is also limited by the minimum pulse width
(Wmin):
Width Deviation ≤ Pulse Width  Wmin
and
Width Deviation ≤ Period - Pulse Width  Wmin
81150A: Where Wmin is either 4.1 ns or 10 ns depending on the
selected amplifier (See section Amplifier Type Selection).
81160A: Where Wmin is 1.5 ns.
 The width deviation is limited by the current edge time setting.
Width Dev ≤ Pulse Width(0.8 Lead Edge Time+0.8 Trail Edge Time)
and
Width Dev ≤ PeriodPulse Width(0.8 Lead Edge Time+0.8 Trail
Edge Time)
Front-Panel
Operation
After enabling PWM, press the Width Deviation softkey. Then use the knob
or numeric keypad to enter the desired deviation.
Remote Interface
Operation
:PWM[1|2]:DEViation{<deviation
in seconds>| MINimum|MAXimum}
The pulse width and width deviation, and the pulse duty cycle and duty cycle
deviation are coupled in the front panel interface. If you select Width for the
pulse waveform and enable PWM, the Width Deviation softkey is available.
On the other hand, if you select Dty Cyc for the pulse waveform and enable
PWM, the Dty Cyc Deviation softkey is available.