USB-player-dat

https://www.instructables.com/External-USB-audio-card-with-optical-SPDIF-POF-in/

• PCM2906-dat -> DOUT -> -> 74ACT00-dat -> TX -> FC300T-dat ->

• FC300T-dat -> RX -> OPA2380-dat -> DIN -> PCM2906-dat

ref

• TI-audio-dat - 74xx-dat