Phase digitizing apparatus and method thereof

摘要

A phase digitizing apparatus for generating a corresponding digital value in response to a phase of an input signal is provided. The phase digitizing apparatus includes a coarse phase generator, for generating a coarse phase code according to the phase of the input signal and a first time unit; a fine phase code generator, for generating a fine phase code according to the phase of the input signal and a second time unit; and a calculating unit, for generating the digital value according to the coarse phase code and the fine phase code; wherein the first time unit is greater than the second time unit.