[sci.electronics] Tuner in a Chip?

scheer@cell.mot.COM (Jon Scheer) (10/13/89)

Hi all,

   I was wondering...

   I know that there are chips that (1) take a composite video signal
and an audio signal as inputs, (2) applies some magic to them, and 
(3) gives you rf output (usually channel 3 or such).

   What I'm looking for is just the opposite.  I would like to
feed it the channel 3/whatever rf signal and get the audio and
video out.

   So, what I'm basically looking for is a 'tuner in a chip.'  Does
anyone know if such a critter exists?  Yes, I imagine it would
require some external support, but I'm trying to keep chip/part count
to a minimum.

   (I noticed a similar discussion recently, but (if memory serves) 
nothing like this was addressed.)

   Thanks.  Oh yeah, if possible, could you e-mail a reply?  I don't
get a chance to read this newsgroup very often.  If there is enough
interest I'll summarize.  Thanks (again).

Jon
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