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The fundamentals and state of the art in fractional-N phase-locked-loop (PLL)-based frequency synthesis are reviewed. Particular emphasis is placed on delta-sigma fractional-N PLLs and quantization noise and fractional spur suppression techniques for wide-bandwidth applications.
Circuits and Systems II: Express Briefs, IEEE Transactions on (Volume:56 , Issue: 12 )
Date of Publication: Dec. 2009