160
Chapter 3 Features and Functions
Burst Mode
3
• Remote Interface Operation:
[TRIGger[1|2]:]TRIGger:SOURce
{IMMediate|EXTernal|TIMer|BUS}
Use the following command to specify whether the waveform
generator triggers on the rising or falling edge of the Ext Trig
connector.
[TRIGger[1|2]:]TRIGger:SLOPe {POSitive|NEGative}
See “Triggering” on page 161 for more information on triggering.
Trigger Out Signal
A “trigger out” signal is provided on the rear-panel Trig Out connector
(used with burst and sweep only). When enabled, a TTL-compatible pulse
waveform
with either a rising edge (default) or falling edge is output from
the
Trig Out
connector
at the beginning of the burst.
• When the Internal (immediate) trigger source is selected the
waveform generator outputs a square waveform with a 50% duty
cycle from the Trig Out connector at the beginning of the burst. The
frequency of the waveform is equal to the specified burst period.
• When the External trigger source is selected, the waveform generator
automatically disables the “trigger out” signal. The
Trig Out
connector
cannot be used for both operations at the same time (an externally-
triggered waveform uses the same connector to trigger the burst).
• When the Manual trigger source is selected, the waveform generator
outputs a pulse (>1 µs pulse width) from the Trig Out connector at the
beginning of each burst.
•
Front-Panel Operation
: After enabling bursts, press
and
the
Trig Out Setup
softkey. Then select the desired edge by pressing the
Trig Out softkey.
• Remote Interface Operation:
OUTPut:TRIGger:SLOPe {POSitive|NEGative}
OUTPut:TRIGger {OFF|ON}
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