You've posted on the end of a 3 year old thread which was talking about a capability which was end-of-life even then and has been removed from the tools. So that's why there's no help about the noise aware PLL flow. Essentially (as is covered elsewhere), the capability covered limited applications (only a limited number of PLL architectures), so we decided to drop it because to cover everything necessary was not really feasible. Regards, Andrew
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