Detecting phase position of signal relative to digital signal involves oversampling digital signal with sampling signal derived from signal to derive two sampling value groups per data signal data bit

摘要

The method involves oversampling the digital signal with a sampling signal derived from the signal to derive two groups of sampling values per data signal data bit, evaluating the first group to determine a phase deviation of the signal relative to the digital signal and generate a first phase correction signal and evaluating the second group to determine a coarse phase deviation and generate a second phase correction signal The method involves oversampling the digital signal (D) with a sampling signal derived from the digital signal to derive first and second groups of sampling values per data bit of the data signal, evaluating the first group to determine a phase deviation of the signal relative to the digital signal and to generate a first phase correction signal (pdo) and evaluating the second group to determine a coarse phase deviation of the signal relative to the digital signal and to generate a second phase correction signal (pherr). Independent claims are also included for the following: (a) a phase detector arrangement (b) a phase control loop for a phase detector arrangement (c) and a circuit for clock and data recovery from a digital signal with a phase control loop.