Efficient interpolator for high speed timing recovery
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United States of America Patent
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Feb 8, 2005
Grant Date -
Sep 25, 2003
app pub date -
May 16, 2003
filing date -
Dec 24, 1998
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Abstract
A data processing circuit includes a digital data source having an output carrying a sequence of digital signals. A pre-filter is coupled to the output of the digital data source. The pre-filter has a first output that carries a second sequence of digital signals and a second output that carries a third sequence of digital signals. The second sequence of digital signals is time shifted relative to the third sequence of digital signals. The circuit also includes an interpolation circuit with a first input coupled to the first output of the pre-filter and a second input coupled to the second output of the pre-filter.
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