US Digital has a series of quad interface and decoding chips - may or may
not find what you need.



http://www.usdigital.com/products/interfaces/ics

-Denny


On Fri, Mar 6, 2015 at 5:46 PM, Harold Hallikainen <harold@hallikainen.org>
wrote:

> Is anyone aware of a quadrature encoder interface chip that acts like the
> typical quad encoder state machine to throw out invalid stuff due to
> contact bounce? I want to drive an EEPOT with an encoder without throwing
> another programmable part in the circuit. Or, perhaps there's an EEPOT
> that can directly connect to an encoder?
>
> THANKS!
>
> Harold
>
>
>
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