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Dear antia66,
+ X, o4 c( R9 J* o' sIf damping factor is choosen 2, how about the natural freqency?
6 W8 W* N" T$ @9 G8 _5 NWill the natural freqency changed with damping factor ?) _3 X' |8 |; Q- ^9 L$ _% _* c
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.
# [7 p8 ]5 o. g8 S: g' zHowever, VCO related noise causes the bandwidth cannot choosed to too high bandwidth.
2 {& D4 u/ T' y' mSo, linear model is usually useful. |
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