Other Parts Discussed in Thread: SRC4192, , SRC4392, PCM4202, ADS127L01
Hello TI,
I just received the prototype boards with the SRC4192 as an SPDIF-input / receiver,
and I have a working SPDIF-transmitter based on a DIX4192.
Between DIX4192 = transmitter and SRC4192 = receiver are optical drivers and receivers, working with 3.3V.
All worked fine until I switched the transmitter's sampling rate to 192kHz: the receiving SRC4192 could not lock.
I checked the receiver with other 192kHz sources (Crystal's codec CS4265 and some XMOS chip): no problem at all with 192kHz.
After many other failed attempts I finally changed the DIX4192 = transmitter side from AESOUT to TX+, and lo and behold, that works!
I checked both signals (AESOUT / TX+) on an oscilloscope, and they look identical.
Crystal's CS8422 has no problem receiving data when the transmitter is using AESOUT.
So what is going on there?
Is there some "PRO"-bit set with AESOUT or anything else?