N-way circular phase interpolator for generating a signal having arbitrary phase
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United States of America Patent
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Dec 11, 2001
Grant Date -
N/A
app pub date -
Mar 23, 2000
filing date -
Mar 23, 2000
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An N-way Circular Phase Interpolator interpolates the N phases of a reference clock signal to generate a tunable clock. By using more than two phases for interpolation, high excess frequencies as well as high precision (i.e. small jitter) are achieved. The N-way Circular Phase Interpolator provides for analog filtering in the phase domain, which attenuates the out-of-band phase noises thus further reducing the output jitter.
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