BURSt Subsystem
Burst Period > (Burst Count / Waveform Frequency) + 200 ns
[SOURce[1|2]:]BURSt:MODE {TRIGgered|GATed}
[SOURce[1|2]:]BURSt:MODE?
Selects the burst mode.
Parameter
Typical Return
{TRIGgered|GATed}, default TRIGgered
TRIG or GAT
Set gated burst mode
BURS:MODE GATED
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TRIGgered: the instrument outputs a waveform for a number of cycles (burst count) each time a trigger is
received from the trigger source (
).
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In GATed burst mode, the output waveform is on or off, based on the signal at the rear-panel
Ext Trig
connector.
Select this signal's polarity using
. When the gate signal is true, the instrument outputs a
continuous waveform. When the gate signal goes false, the current waveform cycle is completed and the instru-
ment stops and remains at the voltage level corresponding to the waveform's starting burst phase. For a noise
waveform, the output stops immediately when the gate signal goes false.
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GATed: burst count, burst period, and trigger source are ignored (these are used for the triggered burst mode
only). If a manual trigger is received (
), it is ignored and no error will be generated.
[SOURce[1|2]:]BURSt:NCYCles {<
num_cycles
>|INFinity|MINimum|MAXimum}
[SOURce[1|2]:]BURSt:NCYCles? [{MINimum|MAXimum}]
Sets the number of cycles to be output per burst (triggered burst mode only).
Parameter
Typical Return
Whole number from 1 (default) to 100,000,000, limited as described below
+5.00000000001
Return number of cycles per burst:
BURS:NCYC 50
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With
, burst count must be less than the product of the maximum burst period
(8000 s) and the waveform frequency, as shown below.
Burst Count < (Maximum Burst Period)(Waveform Frequency)
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The increase the burst period up to its maximum value to accommodate the burst count (but the waveform
frequency will not be changed). From the remote interface, a "Settings conflict" error will also be generated.
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When gated burst mode is selected, the burst count is ignored. However, if you change the burst count while in
the gated mode, the instrument remembers the new count and used it when the triggered mode is selected.
[SOURce[1|2]:]BURSt:PHASe {<
angle
>|MINimum|MAXimum}
[SOURce[1|2]:]BURSt:PHASe? [{MINimum|MAXimum}]
Sets the starting phase angle for the burst.
178
Agilent 33500 Series Operating and Service Guide
