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From: kawaguch@girtab.usc.edu (Atsushi Kawaguchi)
Newsgroups: sci.electronics
Subject: Re: miniature FM stereo radio
Message-ID: <4035@merlin.usc.edu>
Date: 8 Jun 89 06:18:08 GMT
References: <1989Jun7.204321.225@gpu.utcs.utoronto.ca>
Sender: news@merlin.usc.edu
Reply-To: kawaguch@girtab.usc.edu (Atsushi Kawaguchi)
Organization: University of Southern California, Los Angeles, CA
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In article <1989Jun7.204321.225@gpu.utcs.utoronto.ca> lharris@gpu.utcs.utoronto.ca (Leonard Harris) writes:
>Does anyone know of a single chip (or small component part count) to build
>a FM stereo radio that could drive a pair of headphones?  I have seen
>those credit card size radios but they are too expensive and besides - I
>like to hack around.
>Thanks
>/leonard

I was looking into making FM stereo rcvr just a few days ago too.
Went to Radio Shack, they have one chip FM receiver with little support
parts (~10 R & C), and requires little or no caliberation.  But it's
only a mono receiver, not stereo.  Chip costs ~$6.
Looked into IC master, a chip that looked good was Signetics' TDA7020T.
It can be used for both stereo and mono FM, and I think it's got auto mute.
Very little support components, and only 1 alignment is necessary. 
It can drive earphone w/ built in amp in mono application only.

I don't know where you can get it (JDR, Hamilton-Avnet, call & find out).

-Jun
 *************   Atsushi Jun Kawaguchi
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