SemiLeon
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Posts: 5
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Hi, all, I have a question about the design of 4th-order loop filter for charge-pump PLL. Dean give a method to design a loop filter by given pole ratios. In dean's method, the poles of the filter are all on the real axis, but I think it is possible to design a filter with a pair of complex pole, and It may have better attenuation.
Please give me some advise.
Thanks and best Regards.
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