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Dear antia66,/ O3 K6 q& k& i$ t3 p
If damping factor is choosen 2, how about the natural freqency?
$ h) s( o& ?- r. q. v DWill the natural freqency changed with damping factor ?$ Q7 b0 }7 @. t
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.
- b. d- Q- a; O; o8 a# gHowever, VCO related noise causes the bandwidth cannot choosed to too high bandwidth.
( X# h) Z0 M1 |3 i- D+ g% aSo, linear model is usually useful. |
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