S/PDIF (optical), also known as TOSLINK or optical digital audio, is a digital audio interface using fiber optic cable.
Characteristics
- Digital audio signal (PCM or bitstream)
- Uses TOSLINK (Toshiba Link) connector
- Immune to electrical interference
- Supports stereo PCM and Dolby Digital/DTS passthrough
Common uses
- TV/DVD combo units with digital audio output
- High-end CRT TVs
- Connection to external A/V receivers and soundbars
Connector
The TOSLINK connector is a standardized optical connector developed by Toshiba. It uses a red LED or laser to transmit the digital audio signal.