FUNCtion Subsystem
Parameter
Typical Return
16 ns to approximately 1,000,000 s, limited as described below; default 100 µs
+5.000000000000000E-03
Set pulse width to 5 ms (two methods):
FUNC:PULS:WIDT 5 ms
FUNC:PULS:WIDT .005
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The
and
commands affect the same parameter. In some appli-
cations, it is natural to adjust pulse width directly (in seconds); in others, adjusting duty cycle seems more natural.
When frequency is adjusted, if pulse width was most recently adjusted as duty cycle on the front panel, then duty
cycle will be kept constant as frequency or period changes. However, if pulse width was the last setting, then pulse
width will be kept constant as frequency or period changes. See
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Pulse width is the time from the 50% threshold of a pulse's rising edge to the 50% threshold of the next falling
edge.
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The specified pulse width must be less than the difference between the
period
and the
minimum pulse width
as
shown below. The instrument will adjust pulse edge time first and then limit pulse width as needed to accom-
modate the period.From the remote interface, a "Settings conflict" error will also be generated.
Pulse Width
≤
Period – Wmin
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The specified pulse width must also be less than the difference between the
period
and the
edge time
as shown
below. The instrument will adjust pulse edge time first and then limit pulse width as needed to accommodate the
period.
From the remote interface, a "Settings conflict" error will also be generated.
Pulse Width
≤
[Period - ((Leading Edge Time + Trailing Edge Time) * 0.625)]
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The pulse width must also be greater than the total time of one edge as shown below.
Pulse Width
≥
[(Leading Edge Time + Trailing Edge Time) * 0.625]
[SOURce[1|2]:]FUNCtion:RAMP:SYMMetry {<
percent
>|MINimum|MAXimum}
[SOURce[1|2]:]FUNCtion:RAMP:SYMMetry? [{MINimum|MAXimum}]
Sets the symmetry percentage for ramp waves.
Parameter
Typical Return
0 to 100, default 100
+5.00000000001
Set symmetry to 50%:
FUNC:RAMP:SYMM 50
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Symmetry represents the amount of time per cycle that the ramp wave is
rising
(assuming that the waveform
polarity is not inverted).
Symmetry 0%
Symmetry 100%
222
Agilent 33500 Series Operating and Service Guide
