Design of high-performance CMOS charge pumps in phase-locked loops
نویسنده
چکیده
Practical considerations in the design of CMOS charge pumps are discussed. The non-ideal effects of the charge pump by the leakage current, the mismatch, and the delay offset in the P/FD are quantitatively analyzed. To use the appropriate charge pump in various PLL applications, several architectures are investigated and their performances are compared. The improved design of both the single-ended and the differential charge pumps are presented with the simulation result.
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