I have an audio signal that is generated in software (written to an audio file) and contains binary FSK encoded data and need to decode it back to digital data.
The datasheet for the LMC567 says that this supports wide band fsk demod but I cannot find any examples of achieving this.
I wonder if someone could indicate if I am on the right track here - it's a lot of work if I am starting out wrongly.
Since it's a single frequency detector I am guessing that the OUT pin is not used to recover the digital data?
I suppose that the decoding is done by examining the voltage of pin 2 (Loop filter) as this pin seems to give an analogue signal that tracks the in-band incoming frequency changes?
Does this sound correct?
Thank you.
