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Dear antia66,
( W# X( s5 ^( G# L6 @If damping factor is choosen 2, how about the natural freqency?* }' a! P/ B1 s* T, I. W
Will the natural freqency changed with damping factor ?7 i, j8 A" v$ {, f, ^9 m! p
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.; Q: ]+ @/ W4 v5 U' R
However, VCO related noise causes the bandwidth cannot choosed to too high bandwidth.7 F% z- b! q/ R5 D! Y ?
So, linear model is usually useful. |
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