Use FPGA to reclock audio I2S/ADAT/SPDIF signals

Hello

I am looking for a solution to reclock:

- COAX SPDIF

- OPT SPDIF

- I2S (2 channels)

with extremely low jitter < 100-200fs.

An XMOS is generating above streams.

Plan is to use extremely precise clocks like Crystek or Accusilion 45.1584MHz & 49.152MHz (or multiple).

The "re-clocker" would take the COAX SPDIF and the OPT SPDIF and from above clock will reclock the signals by sending the clock back to the XMOS to get the data bits.

The "reclock" would take the I2S signals: CLK, LRCLK, DATA and reclock using above clocks.

There are tons of such boards on the market using Intel FPGA so I am quite sure this was already implemented. I do not want to re-invent the wheel

Thank you for any help!

Stephane.