Suggest me a circuit for FSK demodulation

[siliciuro]

Dear All,
I'm looking for a circuit to make FSK demodulation with following feature:
F(space)= 2620Hz
F(mark) = 2660Hz
Baud rate = 20bit/s
Bit duration = 50ms
In your opinion what is the best Integrated Circuit that I have to use, considering that frequency shift is very small (+/-20Hz)?
I see that XR-2211 make FSK demodulation, but I'm not sure if it could manage this small frequency shift.

Have you any suggestion?
Someone have this application?

Thanks

 

[keith1200rs]

Re: FSK demodulation

NE567 maybe?

Keith.