292 Keysight E8357D/67D & E8663D PSG User’s Guide
Peripheral Devices
N5102A Digital Signal Interface Module
Figure 12-12
Data Setup Softkey Menu with Parallel Port Configuration
2.
If a real-time modulation format is being used, press the
Data Type
softkey. (This softkey is inactive when an ARB modulation format is turned
on.)
In this menu, select whether the real-time baseband data from the signal
generator is either filtered (
Samples
) or unfiltered (
Pre-FIR Samples
). The
selection depends on the test needs. The
Samples
selection provides FIR
filtered baseband samples based on the communication standard of the
active modulation format. This is the preset selection and the one most
commonly used. However if the device being tested already incorporates
FIR filters, the
Pre-FIR Samples
selection should be used to avoid double
filtering.
3.
Select the data type that is appropriate for the test.
4.
Press the
Numeric Format
softkey.
From this menu, select how the binary values are represented. Selecting
2’s complement allows both positive and negative data values. Use the
Offset Binary selection when components cannot process negative values.
5.
Select the numeric format required for the test.
6.
Press the
More (1 of 2)
softkey.
Inactive for a serial port
Frame polarity is active
configuration
for a serial port configuration
Inactive for ARB formats
Inactive for word
size = 16 bits
