ZHCSIM2D June 2010 – August 2021 PCM9211
PRODUCTION DATA
The S/PDIF-encoded signal generated by the DIT module is available through the MPO0 and MPO1 pins. The MPO selection registers (Register 78h/MPOxSEL[3:0]) can be set to '1101' to determine the DIT output through one of these two pins.
In addition to the standard MPOx pins, the DIT output can also be multiplexed to the RECOUT pin, or back into the DIR. An example of where this multiplexing might occur is in a jitter cleaner application. The DIR in the PCM9211 has excellent jitter reduction. Data can be brought in from an auxiliary source, transmitted through the DIT internally, then routed to the DIR. This process, in turn, cleans the clocks and provides a stable, well-clocked PCM source. This feature is especially useful for jittery sources, such as HDMI.