Need help implementing an all digital PLL using NCO

[moorthi]

All Digital PLL

Hi all
Please help me in implementing an all digital PLL using NCO.

Is it required to used charge pump in ADPLL. If yes suggest me how can i about it.

thanks in advance

--moorthi

 

[rfsystem]

Re: All Digital PLL

If ADPLL mean a complete digital PLL there is an equivalent of a chargepump. That is a numerical integrator. It take the digital phase and generate integral and proportional feedback to the digital oscillator.