The SPDIF (Sony/Philips Digital Interface) is the newest audio transfer file formatting which provides impressive quality through optical fiber and allows the users to enjoy digital audio instead of analog audio. Normally there are two S/PDIF outputs, one for RCA connector, the most common one used for consumer audio products, and the other one is for optical connector with a even better audio quality. Through a specific audio cable, users can connect the SPDIF connector to other end of the S/PDIF audio module, which bears S/PDIF digital out put.
Attached is the Pin assembly of SPDIF connector for your reference
