Appendix 21: Typical Dsi Test Configurations; Configuration 1 - Keysight U8903B User Manual

A Appendixes

Appendix 21: Typical DSI Test Configurations

The following sections describe the possible serial audio input and output configurations.
Refer to "Append ix 19: DSI Input and Output Interface" on page
NOTE
on the pins assignment.

Configuration 1

In this configuration, the DUT uses the U8903B internal reference clock source as the
reference clock. The DUT receives the clock references and data from the U8903B.
Press
mode, and press
DUT
Figure A-4
1 At the digital generator, press DSI Config > Master Clock, and select On to enable the
master clock.
2 At the digital generator, press DSI Config > Sample Rate, and set the sample rate.
3 At the digital generator, press DSI Config > Word Length, and set the word length. The bit
clock rate is determined by the multiplication of the sample rate, word length, and
number of channels.
4 At the digital generator, press DSI Config > Mul tiplier, and select the multiplier. The
master clock rate is determined by the multiplication of the sample rate and multiplier.
5 At the digital generator, press DSI Config > Fsync Polarity, and select either Rising or
Falling as the edge synchronization to the leading edge of the frame clock.
566
on the FUNCTION panel to switch between audio generator or audio analyzer
on the FUNCTION panel to switch to digital interface.
Master clock
Data
Frame Sync
Bit clock
DSI test configuration 1
564
Pin 1
Pin 3
Pin 4
Pin 5
U8903B
Keysight U8903B User's Guide
for more information