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

AA
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

http://www.national.com/an/AN/AN-1001.pdf

thanks for concern ,but i want a general expression if present

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...

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.