Hi, m trying to implement PLL for FSK demodulation. NE565 is very simple in use and has very simple formulae bt the problem is that m nt going on hardware. i just need to simulate first. i tried Proteus bt proteus unfortunately doesnt has a model for NE565.... see 'pic1' https://i452.photobucket.com/albums/qq242/kahafeez/pic1.jpg...... so i need an NE565 model or whatever is required to make it run ..... i've Proteus 7.1sp2 .... NE565 is pretty easy to use so if i get the model from somewhere that would be wonderful
as NE565 didnt run so i tried 4046 .... it has the model bt the prob is that the formulae to set 4046's VCO's free running freq and capture range and lock range arent that simple...... see 'pic2' https://i452.photobucket.com/albums/qq242/kahafeez/pic2-1.jpg.... plz guide me with this .... abt the all 3 terms fo, fc and fL plz .... the major problem is the free running freq.... my requirement is that i need to detect an FSK signal whose hi freq is 220KHz and low freq is 180KHz .... plz suggest me what should i keep the values of fo, fc and fL and what values should the components be????
as NE565 didnt run so i tried 4046 .... it has the model bt the prob is that the formulae to set 4046's VCO's free running freq and capture range and lock range arent that simple...... see 'pic2' https://i452.photobucket.com/albums/qq242/kahafeez/pic2-1.jpg.... plz guide me with this .... abt the all 3 terms fo, fc and fL plz .... the major problem is the free running freq.... my requirement is that i need to detect an FSK signal whose hi freq is 220KHz and low freq is 180KHz .... plz suggest me what should i keep the values of fo, fc and fL and what values should the components be????
