Path: utzoo!utgpu!news-server.csri.toronto.edu!rutgers!cs.utexas.edu!convex!central!geraldo.Central.Sun.COM!west!newstop!exodus!oobleck.Eng.Sun.COM!bender
From: bender@oobleck.Eng.Sun.COM (memory fault - core dumped)
Newsgroups: sci.electronics
Subject: Re: Digital pots (request for info)
Keywords: pots, potentiomemters, audio
Message-ID: <14037@exodus.Eng.Sun.COM>
Date: 26 May 91 22:06:06 GMT
References: <1991May25.232651.11094@leland.Stanford.EDU>
Sender: news@exodus.Eng.Sun.COM
Distribution: usa
Organization: Sun Microsystems, Mt. View, Ca.
Lines: 24

In article <1991May25.232651.11094@leland.Stanford.EDU> masaki@elaine13.Stanford.EDU (Pixel) writes:
->
->  I seem to recall that a few months back, digital volume controls were
->discussed in this newsgroup.  I'm sorry if this is bringing up a dead
->subject, but does anyone know a company that makes or sells digitally
->controllable potentiometers which are of suitable quality for high
->quality audio production. (I'm designing part of a sound mixing console.)

I was reading an issue of EDN the other day, and noticed an ad for digital
pots from Dallas Semiconductor (I hope that's who it is).  Anyway, I think
they had several versions (i.e. number of steps and resistances) but the
neat thing that the ad mentioned was they they could be used as drop-in
replacements for a regular pot (or trimmer), AND they retained their setting
even when power was removed (just like a real pot/trimmer).

You might give them a call; they also make other kinds of neat stuff; their
forte seems to be lithium-battery-backed-up everything, and they also make
those clock-in-a-ROM-socket things.

mike
--
Won't look like rain,           Won't look like snow,            | DOD #000007
Won't look like fog,            That's all we know!              | AMA #511250
We just can't tell you anymore, We've never made oobleck before! | MSC #298726