Duty Cycle - HP 33120A User Manual

Function generator / arbitrary waveform generator
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Chapter 3 Features and Functions
Output Configuration

Duty Cycle

Applies only to square waves. Duty cycle is specified as a percentage and
represents the amount of time per cycle that the square wave is high.
T
D
T
D
Duty Cycle =
T
• Duty cycle: 20% to 80%, in 1% increments (frequency ≤ 5 MHz).
40% to 60%, in 1% increments (frequency > 5 MHz).
The default is 50%.
• The duty cycle is stored in volatile memory; the duty cycle is set to
50% when power has been off or after a remote interface reset.
The APPLy command automatically sets the duty cycle to 50% for
square waves.
• Before attempting to set the duty cycle, you must enable the square
wave function. From the front panel, "
square wave is not currently active. From the remote interface,
no error is generated, but the specified duty cycle is remembered
when you change to the square wave function.
• The duty cycle setting is remembered when you change from square
wave to another function. When you return to the square wave
function, the previous duty cycle is used.
66
T
1
(where T =
)
frequency
SQUARE ONLY
" is displayed if

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