Duty cycle based phase interpolators and methods for use
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United States of America Patent
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Oct 2, 2012
Grant Date -
Feb 16, 2012
app pub date -
Aug 11, 2010
filing date -
Aug 11, 2010
priority date (Note) -
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Abstract
Duty cycle based phase interpolators, and methods for implementing duty cycle based phase interpolators are disclosed. One such phase interpolator includes a first pulse width modulator configured to generate a first duty cycle signal, and a second pulse width modulator configured to generate a second duty cycle signal. The phase interpolator further includes a logic unit configured to merge the first duty cycle signal and the second duty cycle signal to produce a periodic digital signal with a controllable phase depending on the first and second duty cycle signals.
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