Frequency detector for clock data recovery

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United States of America Patent

PATENT NO 11245554
SERIAL NO

16903377

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Abstract

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An example method for clock and data recovery (CDR) includes generating, in a set of slicers of a receiver, in addition to a data signal and a first error signal, at least one additional error signal. The method further includes receiving, at a frequency detector (FD) of a CDR unit of the receiver, the data signal, the first error signal, and the at least one additional error signal, and processing them to generate a FD output. The method still further includes multiplying the FD output by a user-defined FD gain, and adding the FD output, as multiplied by the FD gain, in a frequency path of the CDR unit.

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Patent Owner(s)

  • XILINX INC.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Frans, Yohan Palo Alto, US 47 381
Lin, Winson San Francisco, US 16 104
Roldan, Arianne Los Gatos, US 2 1
Zhang, Geoff San Jose, US 15 142
Zhang, Hongtao San Jose, US 91 496

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