Interesting idea. This is a battery operated device, and I wonder about
power consumption. Also, my DSP experience is close to none! I'm currently
using the SA639 and driving a PIC18 to do packet decoding, drive a
display, etc. If going to DSP demodulation in a PIC (as opposed to using a
standard receiver chip), it would be interesting to move everything to one
chip (demodulation, packet parsing, etc.) but, again, I worry about power
consumption.

Thanks for the idea! I'll look into it.

Harold



> Develop your own using a dsPic ?
>
>
>
> -----Original Message-----
> From: piclist-bounces@mit.edu <piclist-bounces@mit.edu> On Behalf Of
> Harold Hallikainen
> Sent: 12 September 2018 22:33
> To: Pic List <piclist@mit.edu>
> Subject: [EE] FSK receiver chips?
>
> 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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