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Dear antia66,% W/ W( `3 L; V) ~) C2 L0 F
If damping factor is choosen 2, how about the natural freqency?" ?) W4 X% F3 X
Will the natural freqency changed with damping factor ?6 C4 M( n3 ^! C/ ^8 u8 ?# f
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.
. D s# h; Z! [; u; M# RHowever, VCO related noise causes the bandwidth cannot choosed to too high bandwidth., Z! [) h4 M( q6 Z8 w: i- v5 @( O
So, linear model is usually useful. |
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