Keysight EXG and MXG X-Series Signal Generators User’s Guide 443
Using the N5102A Digital Signal Interface Module for N5172B/82B with Option 003/004 and
653/655/656/657
Operating the N5102A Module in Output Mode
11.Press the Clock Polarity Neg Pos softkey to Neg.
This shifts the clock signal 180 degrees, so that the data starts during the negative clock
transition. This has the same affect as selecting the 180 degree phase adjustment.
12.Make the clock polarity selection that is required for the device being tested.
13.Press the Return key to return to the first-level softkey menu.
The clock source selection is also reflected in the first-level softkey menu graphic. For
example, if the device is the new clock source, the graphic will show that the frequency
reference is now connected to the DUT and the DUT has an input clock line going to the
N5102A module.
Generating Digital Data
Press the N5102A Off On softkey to On.
Digital data is now being transferred through the N5102A module to the device. The green status
light should be blinking. This indicates that the data lines are active. If the status light is solidly
illuminated (not blinking), all the data lines are inactive. The status light comes on and stays on
(blinking or solid) after the first time the N5102A module is turned on (N5102A Off On to On). The
status light will stay on until the module is disconnected from its power supply.
The interface module can only be turned on while a modulation format is active. If the modulation
format is turned off while the module is on, the module will turn off and an error will be reported.
If changes are made to the baseband data parameters, it is recommended that you first disable
the digital output (
N5102A Off On softkey to Off) to avoid exposing your device and the
N5102A module to the signal variations that may occur during the parameter changes.
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