Basic Digital Operation

Triggering Waveforms

•Segment Advance (Dual ARB only) causes a segment in a sequence to require a trigger to play. The trigger source controls how play moves from segment to segment (example on page 107). A trigger received during the last segment loops play to the first segment in the sequence. You have two choices as to how the segments play:

—Single causes a segment in a sequence to play once, then to stop and wait for a trigger before advancing to the next segment, which plays to completion. Triggers received during play cause the current segment to finish, then play advances to the next segment, which plays to completion.

—Continuous causes a segment in a sequence to play continuously until the waveform receives another trigger. Triggers received during play cause the current segment to finish, then play advances to the next segment, which plays continuously.

•Continuous repeats the waveform until you turn the signal off or select another waveform, trigger mode, or response. Continuous has the following options:

—

Free Run immediately triggers and plays the waveform; triggers received during play are ignored.

—

Trigger & Run plays the waveform when a trigger is received; subsequent triggers are ignored.

—Reset & Run (not available in real- time Custom) plays the waveform when a trigger is received; subsequent triggers restart the waveform.

Accessing Trigger Utilities

The following figures show the menus for the trigger parameters. These figures show the Dual ARB player, but you can access the trigger utilities through the Trigger softkey in all ARB formats, and the Pattern Trigger softkey in the Real Time I/Q Baseband (Custom) format.

PATTERN TRIG IN connector

PAT TRIG IN 2 pin on

the AUXILARY I/O connector

Active only when

Ext is selected.

• To display the trigger modes, press Mode > Dual ARB > Trigger.

•To display the response selections available for a given trigger mode, press Trigger Setup, then select the desired trigger mode. To see the selections for Single mode in an ARB format, select Retrigger Mode; in real- time Custom, selecting Single mode causes the data pattern to play once when triggered.

•To display the trigger source options, press Trigger Setup > Trigger Source.

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Chapter 3

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Agilent Technologies E8267D PSG, E8257D PSG manual Accessing Trigger Utilities
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E8267D PSG, E8257D PSG specifications

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