Article View: sci.electronics
Article #20605Re: DTMF Encoding AND decoding
From: Michael L. Tanner
Date: Tue, 31 Jan 1989 00:58
Date: Tue, 31 Jan 1989 00:58
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In article <350@serene.UUCP> gbell@pnet12.cts.com (Greg Bell) writes: > Are there any available chips to do both encoding AND decoding of DTMF in >the same DIP? Would save some board space. > Mitel makes the type of IC that you are looking for. The part is MT8880, and comes in a 20 pin DIP. It has a microprocessor bus interface and is relatively easy to interface to. The chip uses a standared 3.58 Mhz crystal. The last price that I know of is about $7.50 each. This is a 2 year old price, and that was when the chip first came out. I assume that the prices have dropped since then.
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!ncar!ames!lll-winken!spl1!quintro!mlt From: mlt@quintro.UUCP (Michael L. Tanner) Newsgroups: sci.electronics Subject: Re: DTMF Encoding AND decoding Message-ID: <294@quintro.UUCP> Date: 31 Jan 89 00:58:59 GMT References: <350@serene.UUCP> Reply-To: mlt@quintro.UUCP (Michael L. Tanner) Organization: none Lines: 12