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Equation that relates the settling time of charge pump PLL to the frequency tolerance

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husseinadel

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can anybody tell me an equation that relates the settling time of charge pump PLL
to the frequency tolerance reqired,,specially for type 2 ,3rd and 4th order PLL
thanks
 

eda_freak

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Re: PLL design question

Hi Friend,
Refer the book by BEST on phase locked loops or the one by by woolaver...both available for downloads from this forum...else contact me...
 

biff44

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Re: PLL design question

Yes, and I would like a simple equation to predict what the stock market is going to do next week!

No such thing. PLL settling time is a non-linear event, and good estimates involve probablilities and tragectories. A wild guess relates settling time to control loop bandwidth, but you can be off by orders of magnitude with that guess.
 

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