Low jitter I2S buffer?


2009-06-24 10:49 pm
If you want low additive jitter look at clock distribution buffers. If you're recovering MCLK from I2S output quality is likely dominated by the recovery PLL's jitter, so this may not be the most useful optimization. If the clock transition's handled with an ASRC time domain ringing from brickwall antialiasing is likely the dominant source of subjective degradation.

oshifis is referring to source termination on a relatively stiff transmission line, which is a common mechanism for mitigating ISI in two layer audio PCBs. There's plenty of existing material available from searching on termination schemes, characteristic impedances, and reflections if one wants more context on that.