Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.
My favorite design resource for PLLs is Horowitz and Hill's The Art of Electronics. It's only seven pages long but talks about type I and II digital, vcos and loop gain calculations. If you don't have the book, I would highly recommend it. It feels like it is written for engineers who need just the facts in order to build a circuit to help with as experiment. Amazon shows the index. Good Luck
all the tutorial is about lpll, can some one help me in designing ADPLL. what i know ADPLL consist phase detector(PD), Loop filter- design using K-1 counter and digital control oscillator(DCO) - from what i read DCO can implement using N-counter but what is N-counter. For PD i got no problom on it but the other one i dont know how to design it.