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From: daan@cs.vu.nl
Newsgroups: rec.audio.high-end
Subject: Re: 8350 dac
Message-ID: <7765@uwm.edu>
Date: 20 Nov 90 14:03:43 GMT
Sender: news@uwm.edu
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Approved: tjk@csd4.csd.uwm.edu
Originator: tjk@csd4.csd.uwm.edu

Hi, 
Asking philips information of the 8350 is not so wise I think.
Ask for the 7350 instead!!. To my knowledge the 8350 does not exist.
Read in HifiNews&RecordReview about it . I think it's in the November issue.
In the October issue there is a picture of a 7350 in the Meridian.
Maybe you already know that philips developed an new 1 bit D/A converter
instead of using CMOS like the 7321 they used BIMOS technique. It needs 10 Volts
and is a bare 1 bit converter, you have to do the upsampling youreself.
It is the first according to the designteam at Philips Nat Lab an D/A converter
with true 18 bit resolution (S/N = 120 dB (?)). I heard it at an AES meeting at
the Philips Nat Lab a couple of month ago.
To my knowledge it hasn't left the lab yet . The Name will be TDA 1547
when it comes out.
Bye the way the people at philips laughed about the statement by Sony that their NOT 1 bitter
would run at 50 Mhz, more is NOT better. The problem: digital 10's Mhz will cause trouble in
the analog part of the configuration plus the intergrator at the end of the switched capacitor config.
has to have a bandwith greater than the clockfreq and that's not easy !!!!..
There are more differences but I'm not an electronics expert.
 
 Daan van Egmond

 Daan van Egmond	e-mail: daan@nat.vu.nl
 Physics Faculty, Free University Amsterdam, Amsterdam, Holland