I am an RFIC designer, before I was designing RF blocks like VCO and so on. Now I will start to design PLL. Please recommend some good books for me, thank you.

I know two books my colledge recommended, Best and Gardner, which is better for a designer?

Rolland Best is good for starting. Gardner is good for theory analysis.

Frankly speaking, I do not remember much in Gardner's book. However, without it, u can not fully understand a few things in PLL.

Just ream them all.

Hi, I think Gardner's book is good but was written before the charge pump PLLs with digital phase detectors.  Best's book is very detailed on describing locking process, but I don't find it useful for much else.  "Frequency Synthesis by Phase Lock" (William Egan) has some chapters describing frequency dividers and phase detectors.  Several of Razavi's books give pretty good introductory analysis of PLL systems, as well as oscillator design.  (He also has a book on PLLs that I haven't read yet, so can't tell you about that.)  Also, Dean Banerjee has an applications oriented PLL book, which has a lot of details on PLL loop filter design, and you can download it for free (the last time I checked) from National Semiconductor website.

Hope that helps.

Thanks, imtired and Frank!

I recommend "Integrated Circuit Design for High-Speed Frequency Synthesis", it deals with a lot of the IC-design-specific issues in PLL design, and makes an excellent accompanying text to Gardner or Egan.

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Also from National Semi, a good intro :

http://www.national.com/appinfo/interface/files/clk_conditioner_owners_manual.pd...