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// Audio Connectors

S/PDIF Coaxial (RCA Orange)

S/PDIF coaxial digital audio uses a 75-ohm RCA connector (conventionally orange) to carry digital audio. Supports up to 192kHz stereo PCM and compressed surround formats. Better high-frequency response than TOSLINK.

// Specifications
Standard
IEC 60958, Sony/Philips S/PDIF
Connector
RCA phono, 75 ohm
Bandwidth
Up to 192kHz / 24-bit stereo
Formats
PCM, Dolby Digital, DTS, DTS-HD MA (bitstream)
Color
Orange (standard, not always followed)
Advantage
Better than TOSLINK for high sample rates
// Pin Reference Table
Pin Name Function Type
1 Center Pin S/PDIF digital signal, 0.5Vpp into 75 ohm BUS
2 Outer Shell Ground / shield / return GND