Path: utzoo!news-server.csri.toronto.edu!cs.utexas.edu!wuarchive!zaphod.mps.ohio-state.edu!unix.cis.pitt.edu!dsinc!netnews.upenn.edu!grad1.cis.upenn.edu!touch From: touch@grad1.cis.upenn.edu (Joseph D. Touch) Newsgroups: sci.electronics Subject: Re: A question about the Nyquist theorm Message-ID: <38963@netnews.upenn.edu> Date: 8 Mar 91 19:38:06 GMT References: <625@ctycal.UUCP> <11515@pasteur.Berkeley.EDU> <3463@polari.UUCP> <38839@netnews.upenn.edu> <1284@dkunix9.dk.oracle.com> Sender: news@netnews.upenn.edu Reply-To: touch@grad1.cis.upenn.edu (Joseph D. Touch) Organization: University of Pennsylvania Lines: 14 Nntp-Posting-Host: grad1.cis.upenn.edu In article <1284@dkunix9.dk.oracle.com> mberg@dk.oracle.com (PUT YOUR NAME HERE) writes: >In article <38839@netnews.upenn.edu> touch@grad1.cis.upenn.edu (Joseph D. Touch) writes: >>(solution using 1 DAC and 4 S/H's >It looks right, but have you considered that S/H-circuits actually are a >specialized kind of analog hardware ? This means that you will get some added >noise and distortion for every S/H you add in series with the signal. Yes - but has anyone considered that DAC's have S/H's inside them, or that signals are amplified and S/H'd on the way to recording? There is no way to remove ALL distortion, of course, but lets not waste money designing playback equipment that is better than the recorded signal. Joe Touch