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Dear antia66,
' {2 ^' g5 ^: Y) b1 KIf damping factor is choosen 2, how about the natural freqency?
. H0 N1 h4 A* b1 y! D4 m4 \( HWill the natural freqency changed with damping factor ?
+ ^1 I, c$ y1 `0 pAs 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. d6 I0 M6 o- [) H* d
However, VCO related noise causes the bandwidth cannot choosed to too high bandwidth.
3 K5 e* i) B+ o& _$ aSo, linear model is usually useful. |
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