How to sumilate a pll's bandwidth?

[flushrat]

In system design, we can calculate the bandwidth through the transfer function, but how to sumilate a real circuit pll's bandwidth?

 

[vacant]

hi! rat:

I think we find estimate the bandwith by inspect PLL's dynamic reponses.

 

[pengboy]

i dont think it is possible to do the simulation,
because the bandwidth is in the phase domain.

 

[derekqiao]

The bandwidth of PLL has nolinear character, so spice simulator can not run ac simulation for it.
You have to build a macromodel to linearize PFD, VCO and other blocks in PLL.

 

[Miguel Gaspar]

You can use the software of the book:

PLL, PhD Roland E. Best, it is very easy to use, and you can find in this forum.

 

[montage3000]

when you know the gain of individual blocks , you know the bandwidth