I need to demodulate an FM signal and I want to use a quadrature demodulator for this. The signal is 16±0.15 MHz, 3.3V output from CMOS oscillator. I know that Gilbert cell mixers are most commonly used for this but I don't have any of them around yet I have some other mixers and parts that can be used as ones:
- ADE-1, diode ring mixer
- SN74LVC1G3157, SPDT analog switch
- BF1105 and BF998 dual-gate MOSFETs
- SN74AHC1G86, XOR gate with Schmitt trigger inputs
Which one of those methods can achieve highest SNR and lowest distortion (<3% is okay)? How good is the performance compared to Gilbert cell mixer? What are the main requirements for choosing a mixer for quadrature demodulation?