|
Dear antia66,
3 ^, I% i# O4 f4 z6 B" u$ t) |8 BIf damping factor is choosen 2, how about the natural freqency?; X8 ?- X0 O8 @. F+ _+ `4 t
Will the natural freqency changed with damping factor ?& f/ b4 q& ~1 q* j. K
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.3 L L* \: f; f) s7 ?
However, VCO related noise causes the bandwidth cannot choosed to too high bandwidth.- f! j( \; G# j( y* d2 o
So, linear model is usually useful. |
|