Is the frequency shift wide enough that you could use a narrow filter and t= reat it as ASK? The SA636 might work for you without messing with the discriminator part if= so. -----Original Message----- From: piclist-bounces@mit.edu On Behalf Of Harold= Hallikainen Sent: Thursday, September 13, 2018 7:35 AM To: Microcontroller discussion list - Public. Subject: RE: [EE] FSK receiver chips? Interesting idea. This is a battery operated device, and I wonder about pow= er consumption. Also, my DSP experience is close to none! I'm currently usi= ng the SA639 and driving a PIC18 to do packet decoding, drive a display, et= c. If going to DSP demodulation in a PIC (as opposed to using a standard re= ceiver chip), it would be interesting to move everything to one chip (demod= ulation, 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 On Behalf Of=20 > Harold Hallikainen > Sent: 12 September 2018 22:33 > To: Pic List > Subject: [EE] FSK receiver chips? > > I'm currently using an SA639 as an FSK receiver. My FSK is at 1.8 MHz=20 > (on IR). I use the mixer in the SA639 to upconvert to 10.7 HHz, then=20 > use ceramic filters in the IF and a ceramic resonator in the=20 > quadrature detector. I'm seeing single chip DSP-based FM receivers=20 > (from places like Silicon Labs). Does anyone know of any DSP-based FSK=20 > receiver chips? I could get rid of a lot of parts! > > Thanks! > > Harold > > > > -- > FCC Rules Updated Daily at http://www.hallikainen.com Not sent from an=20 > iPhone. > -- > http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive=20 > View/change your membership options at=20 > http://mailman.mit.edu/mailman/listinfo/piclist > > -- > http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive=20 > View/change your membership options at=20 > http://mailman.mit.edu/mailman/listinfo/piclist > -- FCC Rules Updated Daily at http://www.hallikainen.com Not sent from an iPho= ne. -- http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/chang= e your membership options at http://mailman.mit.edu/mailman/listinfo/piclis= t --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .