FSK with PLL (phase locked loop)

FSK Digital Frequency Modulation

FSK demodulation with PLL (phase locked loop)

Sans titre

Circuit:

PLL FSK circuit

Function FSK by  Vin:

Vin FSK
Function Vf1 by FSK:

fsk xor
Function Vco by Vf1:

Vf1 VCo
Function Vout by Vin and Vtr:

Vout and Vin

Ref:

1.http://fabrice.sincere.pagesperso-orange.fr/LTspice/modulation_fsk_pll/fsk_pll_ltspice.html

2. Software: www.pyams.com

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