All digital burst-mode clock and data recovery (CDR)
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United States of America Patent
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Apr 28, 2015
Grant Date -
May 8, 2014
app pub date -
May 15, 2013
filing date -
May 15, 2012
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Abstract
The present invention relates to a clock and data recovery (CDR) unit comprising of a bang-bang phase detector to receive data and a recovered clock from a phase selector multiplexer. The phase detector produces a late and an early comparison output. A block (digital filter) receives the late and early input and produces a multiplexer selector control signal. The phase selector multiplexer selects a clock phase as the recovered clock signal using multiplexer selector control signal.
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