seanadams;199637 Wrote: > i2s eliminates one weakness of s/pdif, the biphase clock recovery, but > that is not the only source of jitter. Unless you get the clock very > close to the DAC, and without going through a cable and connectors, it > is not going to be a huge overall improvement. Why don't you put the > oscillator in the DAC, and use a word clock to sync the SB?
I am doing this in the DAC I'm currently designing, the Formula One. You are correct, there are many sources of jitter. However, believe me, this is actually is a huge improvement in jitter reduction, even with the external I2S bus. My I2S bus has extremely low jitter and the number of buffers between the master clock and the D/A chip is minimized in my I2S DAC's. This is the way that the S/PDIF bus should have been designed in the first place, with the master clock at the D/A chip. Read this review of my external I2S bus driving a Benchmark DAC-1 with I2S interface: http://www.6moons.com/audioreviews/empirical/offramp.html Steve N. Empirical Audio -- audioengr ------------------------------------------------------------------------ audioengr's Profile: http://forums.slimdevices.com/member.php?userid=8041 View this thread: http://forums.slimdevices.com/showthread.php?t=34749 _______________________________________________ audiophiles mailing list [email protected] http://lists.slimdevices.com/lists/listinfo/audiophiles
