Path: utzoo!news-server.csri.toronto.edu!cs.utexas.edu!uunet!mcsun!ukc!tcdcs!unix1.tcd.ie!mckillnm
From: mckillnm@unix1.tcd.ie (Bubble Boy)
Newsgroups: sci.electronics
Subject: Spec. needed on 8870 DTMF decoder
Message-ID: <mckillnm.668083980@unix1.tcd.ie>
Date: 4 Mar 91 10:53:00 GMT
Sender: news@cs.tcd.ie
Organization: Trinity College, Dublin
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Nntp-Posting-Host: unix1

Does any one know of a source book with information on the 8870
filter/decoder chip ???

                    Mark.

PS :also looking for info on the 7910 Modem chip !!