Hi, I'm trying to build a FM circuit from discrete components using the LM555 as an oscillator . I get how to modulate the input wave with the 555, but how would you demodulate/ get a modulated sine wave from the square output? My first idea was a sharp low pass filter to remove all the odd harmonics, but the filter would depend on the frequency--which is changing, right?
Does anyone have any ideas?
Thank you very much!
Does anyone have any ideas?
Thank you very much!