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How to sumilate a pll's bandwidth?

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flushrat

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

vacant

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hi! rat:

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

pengboy

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

derekqiao

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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.
 

montage3000

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

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