Invention Grant
US08948332B2 Method of static phase offset correction for a linear phase detector 有权
线性相位检测器的静态相位偏移校正方法

Method of static phase offset correction for a linear phase detector
Abstract:
A method for calibrating a clock and data recovery circuit may include configuring a phase detector as a bang-bang phase detector. The bang-bang phase detector may be used to determine a phase difference between a sampling clock provided by an interpolator and a calibration signal. The phase detector may also be configured as a linear phase detector. While using the linear phase detector, a linear phase detector parameter may be adjusted such that the phase difference between the calibration signal and the sampling clock is zero, while keeping the phase of the sampling clock fixed.
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