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Dear antia66,9 m( H D% E! O6 U! j3 x" D
If damping factor is choosen 2, how about the natural freqency?1 r z- ^ ~1 l5 a8 D/ @1 G3 n
Will the natural freqency changed with damping factor ?
8 a$ u. g) P+ f: s( \8 f. CAs 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.
$ N- b; o0 c" s: ]1 THowever, VCO related noise causes the bandwidth cannot choosed to too high bandwidth./ w. E c! x- F% F
So, linear model is usually useful. |
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