Digital Drive

Posted by Daniel Espley on February 27, 2001 at 15:39:05:

In Reply to: Re: a decent paper indeed posted by -Steve on February 27, 2001 at 15:10:28:

Hi Steve,

you wrote:
"The measurable clock (that times the serial data) "jitter" is indeed lower, but the recovered input clock jitter is now contained (and lost)in the serial data."

Well, we're not really disagreeing at all - the jitter is lower.

I understand that with the ASRC process jitter is encoded into the data signal. The degree to which this happens is dependant on the quality of the implementation. For instance, working with 24 bits will help.

So, to put is crudely, one type of type of distortion is traded for another. The effectiveness of using ASRC can therefore be determined by whether it improves dynamic range over an alternative method of digital interfacing.

Daniel Espley