CD Transport to DAC Timing/Jitter


I am not clear on the source of excessive jitter that can occur between a CD transport and DAC. As I understand it the transport internal oscillator acts as the master system clock. The DAC in turn runs on recovered clock derived from the incoming transport signal. If this is true then the only thing that should cause timing jitter is long strings of consecutive zeros which would adversely affect the DAC clock recovery circuitry. I would think that this would be prevented by scrambling the data or by some zero substitution algorithm similar to what is used in the telecommunications world. Any ideas/comments on this issue?
7p62mm

Showing 1 response by dan2112

If my memory serves me right one of the Stereophile Test Disks (I think it's #2) has an example of what jitter sounds like. But Redkiwi is correct. To me it sounds like the digital glare of the first CD players. Cheers, Dan