I'm currently using an SA639 as an FSK receiver. My FSK is at 1.8 MHz (on
IR). I use the mixer in the SA639 to upconvert to 10.7 HHz, then use
ceramic filters in the IF and a ceramic resonator in the quadrature
detector. I'm seeing single chip DSP-based FM receivers (from places like
Silicon Labs). Does anyone know of any DSP-based FSK receiver chips? I
could get rid of a lot of parts!

Thanks!

Harold



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