Hello,
There are phase margin plot in bode plot graph. How should we read the graph?
Or Phase-Margin of Loop Characteristics in bode plot tab is only needed to pay attention for stability?
Best regards,
Toshihiro Watanabe
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Hello,
There are phase margin plot in bode plot graph. How should we read the graph?
Or Phase-Margin of Loop Characteristics in bode plot tab is only needed to pay attention for stability?
Best regards,
Toshihiro Watanabe
Hello Dan-san,
I think G(s) is transfer function of loop filter which include charge pump and Kpd and N is N divider value. Is my understanding correct?
We can know the phase margin from bode plot below steps.
1. Calculate 20 log(N) value
2. Find the frequency Open loop gain = 20log (N)
3. look at the phase margin plot at the frequency of above.
It seems we don't need this process because PLLatinum show this in Loop Filter Characteristic in bode plot tab, right?
Best regards,
Toshihiro Watanabe