請問PLL的BANDWIDTH為什麼是1/10的reference frequency

wwm101

anita66 兄,是否能跟刘教授联系下,把他的PPT贡献上来呢^_^

semico_ljj

谢谢，分析得不错

deltachen

monkeybad的說明, 真是太淸楚了, 忍不住要讚美一下.

Chipfish

謝謝大大的分享~知識因分享而壯大！

tamino

Dear antia66,
+ g5 v. F9 B: K4 @( v3 {6 G# d5 mIf damping factor is choosen 2, how about the natural freqency?
$ N$ V& h! `9 @3 D- @% WWill the natural freqency changed with damping factor ?
$ O2 p$ ~# v' B, W; w8 JAs 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.
0 a& u) {, A: d" k& t! AHowever, VCO related noise causes the bandwidth cannot choosed to too high bandwidth.
7 Q. Z2 _. `& }2 |( eSo, linear model is usually useful.

c2467

monkeybad的說明, 真是太淸楚了,
6 f# Q9 H4 _, f謝謝

johnchou

請參考劉深淵的著作: 鎖相迴路

bossen777

謝謝大大無私的分享，感恩