Publication No. 980935 Rev. A
3152B User Manual
EADS North America Test and Services
Operation 3-5
the SYNC types except ZERO and HCL. The SYNC width
parameter is in effect only when the pulse type is selected. Use the
following procedure to program SYNC position and width.
outp:sync:sour puls
Selects pulse as the sync source. In this
mode, you may also program the position
of the sync pulse.
outp:sync:pos<value>
Sets the position of the sync pulse relative
to the active segment. The position is
programmed in units of waveform points.
outp:sync:wid<value>
Sets the width of the sync pulse. The
width is in units of waveform points. Note
that the position (in points) plus the width
(in points) shall not exceed the number of
points in the segment.
Example:
Generating a
Simple Waveform
This example assumes that you have set up the chassis and run
the Resource Manager.
Connect two cables, one from the OUTPUT connector and the
other from the “SYNC” connector, to an oscilloscope. Set up the
oscilloscope to trigger from the SYNC signal. Use the following
sequence of commands to set up the 3152B:
*rst
Restore factory defaults (Table
5-1
provides a complete listing of defaults)
outp 1
Enable output relay to turn output on
volt <value>
Set up the amplitude level
volt:offs <value>
Set up the offset level
Set up your oscilloscope to observe that the 3152B generates a
sine waveform with the following properties:
•
Frequency: 1 MHz
•
Offset: 0 V
•
Amplitude: 5 V
The output of the 3152B is calibrated for signals applied to a 50
Ω
load. If your amplitude is twice as high as expected, then the 3152B
output may not be properly terminated. In this case, either add a
50
Ω
termination to the cabling or change your oscilloscope settings
so that its input uses the built-in 50
Ω
input termination. Also, note
the interaction between amplitude and the offset as described
below.
Amplitude-Offset
Interaction
Amplitude and offset may be programmed freely as long as the
following relationship is observed:
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