Mebart wrote:

Can someone suggest a chip for a 2400 MSK modem (which is FSK at 2400
baud with the frequencies being 2400 and 1200 Hz). I'd like a simple
chip that is suitable for a radio application.


I'd like something simple, like the old (discontinued) MX614 chip.


Thanks,


Art

Decoding MSK as FSK will give you way less than optimum bit error rate
vs. noise. Unless the MSK is coming in on an FM channel you should
consider decoding it as PSK.

DsPIC + code -- that's a single-chip solution, and in current production!

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Tim Wescott
Wescott Design Services
http://www.wescottdesign.com