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Nov 18th, 2019, 1:11pm
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Loop filter phase margin in PLL (Read 489 times)
pashtp
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Loop filter phase margin in PLL
Dec 21st, 2018, 8:35am
 
What should be the phase margin of Loop filter in PLL?
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James_T
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Re: Loop filter phase margin in PLL
Reply #1 - Jan 2nd, 2019, 8:59am
 
In PVT, the phase margin must be larger than 45 degrees for stability.
It's just like OPAMP phase margin.
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