Originally Posted by jheoaustin
I thought normal stereo CD was supported with flow control mode. Am I wrong?
No, you are right. The IceLynx chip works correctly.
The problem is that from the IceLynx chip CD signal as SPDIF
is going to DIR/DIT chip AK4114 (not directly to DSP through I2S bus as DVD-A PCM due to unknown fo me reasons), and there is no additional sync from IceLynx chip, which goes to AK4114; it means it works in the regular SPDIF (PLL clock restoration) mode
, except of 49TXi, where we have a strange divider for AK4114 clocking, which might reduce the jitter (but still no sync) and mentioned above 59TXi, where we have that additional sync (like Word Clock in pro devices) coming to AK4114 from IceLynx chip. Why?
It is a question to Pioneer hardware engineers. We've explored schematics of 55TXi, 56TXi, 74TXi and 49TXi/59TXi ... we had a serious discussion regarding this matter in one of the Russian forums.
I has found another problem with i-link in Pioneer receivers also, but that is another story ... let's talk about it a bit later.