"Jim Lesurf" wrote

What spdif cable bandwidth is required for, say 100 ps of jitter with the
J-test? I'm curious about this as I'm wondering about transferring
192k/24bit as well as ye olde 44.1k/16bit.

The bit depth should make no difference, as SPDIF transmits 32 bits (24 of
which are available for audio data) per sample regardless of the bit depth
of the transmitted audio. Any unused bits are simply set to zero. OTOH the
bit rate of the SPDIF link will scale with the audio sample rate.

As I'm currently looking at some DACs I've noticed statements that optical
spdif is limited to 48k.

The toslink transmitters and receivers I've bought recently claim to be good
to 13Mb/s, which should allow a 96kHz sample rate without problems. 192kHz
would be pushing it.

David.