Feb 7, 2006 #1 F flushrat Full Member level 3 Joined Jan 25, 2005 Messages 180 Helped 23 Reputation 46 Reaction score 8 Trophy points 1,298 Activity points 1,532 In system design, we can calculate the bandwidth through the transfer function, but how to sumilate a real circuit pll's bandwidth?
In system design, we can calculate the bandwidth through the transfer function, but how to sumilate a real circuit pll's bandwidth?
Mar 16, 2006 #2 V vacant Newbie level 4 Joined Dec 8, 2005 Messages 5 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,281 Activity points 1,318 hi! rat: I think we find estimate the bandwith by inspect PLL's dynamic reponses.
Mar 21, 2006 #3 P pengboy Member level 1 Joined Jun 28, 2003 Messages 36 Helped 3 Reputation 6 Reaction score 0 Trophy points 1,286 Activity points 411 i dont think it is possible to do the simulation, because the bandwidth is in the phase domain.
Mar 22, 2006 #4 D derekqiao Member level 1 Joined Nov 11, 2004 Messages 40 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,286 Activity points 335 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.
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.
Mar 23, 2006 #5 M Miguel Gaspar Advanced Member level 1 Joined Mar 6, 2006 Messages 477 Helped 70 Reputation 140 Reaction score 34 Trophy points 1,308 Location Culiacán, Sinaloa, Mexico Activity points 4,971 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.
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.
Mar 26, 2006 #6 M montage3000 Member level 4 Joined Mar 3, 2006 Messages 68 Helped 2 Reputation 4 Reaction score 1 Trophy points 1,288 Activity points 1,635 when you know the gain of individual blocks , you know the bandwidth