3152B User Manual
Publication No. 980935 Rev. A
5-32 Programming Reference
EADS North America Test and Services
(FIX) modes only.
Parameters
Name
Range
Type
Default
Description
<width>
4 to n-8 (2 to
n-4 in legacy
mode)
Numeric
(Integer only)
4
(2
in
legacy
mode)
Sets the SYNC width in waveform points. The sync
width can be programmed in increments of 4 points (2
points in legacy mode) minimum. “n” designates the
length of the segment.
Response
The 3152B returns the current SYNC width value.
OUTPut:TRIGger:SOURce {BIT|LCOM|SSYN|HCL|PULS|ZERO|INTernal|
EXTernal}(?)
Description
The TTLTRG signals, when enabled and placed on the backplane, can be asserted with signals coming from
a number of sources. Use this command to assign the source for the active TTLTRG line.
HS Syntax: 0220A<1|2|3|4>(?)
Parameters
Name
Type
Default
Description
BIT
Discrete
BIT
Generates a trigger signal at a designated point on the
waveform. The trigger position is programmed using the
outp:sync:pos command. The same command sets the
position of the trigger output and the position of the
SYNC output.
LCOMplete
Discrete
Generates a single trigger signal in sequenced mode
synchronous with the active segment in the sequence.
SSYNc
Discrete
Similar to the bit option except that it in triggered or
gated modes it eliminates the
±
1 clock jitter between the
trigger and the output signal.
HCLock
Discrete
Generates a sync output pulse that has a 50% duty
cycle and the same period as the output waveform.
PULSe
Discrete
Similar to the bit option except that the width of the sync
pulse in 4 point increments from 4 to n-8 points (2 point
increments from 2 to n-4 in legacy mode). The position
of the pulse is programmed using the outp:sync:pos
command and the width is programmed using the
outp:sync:wid command.
ZEROcross
Discrete
Zero crossing is a special mode where the sync signal
remains low as long as the output waveform level is
negative (below 0 V) and changes to high when the
output level becomes positive (above 0 V).
INTernal
Discrete
This type selects the internal generator as the source.
EXTernal
Discrete
This type selects the external trigger input as the trigger
source. An external signal must be connected to the
TRIG IN connector for this mode to operate correctly.
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