Keysight 81150A - Duty Cycle (Square Waves)

Appendix
116
3.2.12 Duty Cycle (Square Waves)
Introduction
The duty cycle of a square wave represents the amount of time per cycle
that the square wave is at a high level (assuming that the waveform is not
inverted).
(See Pulse Waveforms for information about duty cycle for pulse
waveforms).
Duty Cycle
Characteristics
 The duty cycle is limited by the minimum pulse width of Wmin. This
means the duty cycle can get as low as (100% * Wmin/period) and
as high as (100% * (1–Wmin/period))
81150A: Where Wmin is either 4.1ns or 10ns depending on the
selected amplifier (See section Amplifier Type Selection).
81160A: Where Wmin is 1.5 ns.
 The duty cycle is stored in volatile memory; the duty cycle is set to
50% (the default) when power has been off or after a remote
interface reset (assuming the Power On state is set to “default”)
 The duty cycle setting is remembered when you change from square
wave to another function. When you return to the square function, the
previous duty cycle is used.
 In square mode the leading and trailing edge are both at the minimum
setting (fastest possible transition time).