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Dear antia66,
: _8 z1 ?* a' bIf damping factor is choosen 2, how about the natural freqency?
; L8 g) [1 d- H' BWill the natural freqency changed with damping factor ?
+ c: Z6 N' l8 X' P5 {As my understanding, choose bandwidth <= 1/10*reference freq is for linear model is valid or not, that is, if need widther bandwidth PLL, the parameter from continuous model cannot provide expected PLL behavior.
; Z6 W: R6 \ e( l3 j. u1 U6 }However, VCO related noise causes the bandwidth cannot choosed to too high bandwidth.
\4 Y2 T2 g0 N) I) D d4 [9 pSo, linear model is usually useful. |
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