Home DVD-Audiobahn

New DVD-Audio music releases and talk about the latest players.

[ Follow Ups ] Thread: [ Display  All  Email ] [ DVD-Audiobahn ]
[ Alert Moderator ]

you missed out on my last paragraph

where i stated "this problem is not just in DSD, it's inherent in any sigma delta ADC design."

in other words, 99% of all PCM ADCs in use today.

If you like, I can supply you references (links to various papers and application notes) published by TI/BB, Cirrus Logic etc.

There's a recent AN from BB that specifically talks about this noise and what to do with it. The most common solution appears to be to apply noise shaping plus a low pass filter that is the inverse of the noise curve in the ADC (in other words, frequency response above 20kHz will therefore be attenuated).

The only ADCs that do not suffer from ultrasonic noise are the resistive ladder type designs which unfortunately suffer from low level linearity issues.

Unfortunately, there's no such thing as a free lunch.

This post is made possible by the generous support of people like you and our sponsors:
  Signature Sound   [ Signature Sound Lounge ]

Follow Ups Full Thread
Follow Ups
You can not post to an archived thread.

[ Top Top of Page ] [ Contact Us ] [ Support/Wish List ] [ Copyright © 2024, Audio Asylum, all rights reserved ]
[ General ] [ Speakers ] [ Tubes ] [ Vinyl ] [ Digital ] [ Hi-Rez ] [ Video Asylum ] [ Cables ] [ Tweaks/DIY ] [ Music ] [ Films ]