I use a cheap, easy to get, CD4016 or 4066. It has four switches that can be
controlled by a logic level. Clean switching and ~50db cutoff. I use it to
switch audio circuits in broadcast equipment. The 4016 can actually fade up or
down. Will work on a single 5 volt supply. If anyone's interested, I can post a
schematic. Actually, a j-fet will do the same thing.
Rick - Chief Engineer, WTRM-FM

"Hulatt, Jon" wrote:

> Hi,
>
> Does anyone know of a chip that can switch stereo line-level audio signals?
> I want my pic circuit to be able to switch between two stereo sources, with
> one output to an amplifier, without nasty crackles or pops.
>
> Thanks
>
> Jon

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