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https://designers-guide.org/forum/YaBB.pl Design >> RF Design >> Loop filter phase margin in PLL https://designers-guide.org/forum/YaBB.pl?num=1545410153 Message started by pashtp on Dec 21st, 2018, 8:35am |
Title: Loop filter phase margin in PLL Post by pashtp on Dec 21st, 2018, 8:35am What should be the phase margin of Loop filter in PLL? |
Title: Re: Loop filter phase margin in PLL Post by James_T on 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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