Home Digital Drive

Upsamplers, DACs, jitter, shakes and analogue withdrawals, this is it.

RE: From a practical standpoint...

I suspect that the DCS ring DACs use discrete circuitry for their switches. It might not be terribly difficult to reverse engineer how this works, but considering the price not something that I would want to tackle. At least one inmate, Ted Smith, has built a DAC that used a 1 bit design with digital drivers and a passive filter based on a transformer.

From reading the SABRE white paper, especially section V, it seems highly likely that there is not much (if any) active analog circuitry between the DAC switches and the chip output. The clue is the comment about the effect on distortion when used in a current mode vs. voltage mode. This is just a guess on my part. Someone who has designed a DAC based on this chip might know more. There is more detail in the patent. (US7116257)


Tony Lauck

"Diversity is the law of nature; no two entities in this universe are uniform." - P.R. Sarkar


This post is made possible by the generous support of people like you and our sponsors:
  Parts Connexion  


Follow Ups Full Thread
Follow Ups
  • RE: From a practical standpoint... - Tony Lauck 10:33:59 07/15/12 (0)

FAQ

Post a Message!

Forgot Password?
Moniker (Username):
Password (Optional):
  Remember my Moniker & Password  (What's this?)    Eat Me
E-Mail (Optional):
Subject:
Message:   (Posts are subject to Content Rules)
Optional Link URL:
Optional Link Title:
Optional Image URL:
Upload Image:
E-mail Replies:  Automagically notify you when someone responds.