I have a S/PDIF input and output application (list below),
1. S/PDIF input from RCA connector and connect into ADV7511 to combine video data and transfer to HDMI output.
2. ADV7842 send a S/PDIF audio to RCA connector.
My question is what the voltage is in S/PDIF of two HDMI chip? And have any reference design about S/PDIF? I don't see any reference design in EVM, the EVM only connect the S/PDIF pin to pin header connector.
Note: In RCA connector side, the S/PDIF is 0.5Vpp. For some chip input application, the S/PDIF signal is transfered from 0.5Vpp to TTL level and connect from connector to chip pin. I feel confuse about ADV7511 and ADV7842~~ is TTL level or 0.5Vpp level?