Precompensation circuit for magnetic recording

摘要

A pre-compensation circuit comprises a clock delay generator that generates clock delay data based on a clock signal having a first clock rate. A reference clock delay unit receives the clock signal and generates reference clock delay information based on the first clock rate. A calibration unit receives the reference clock delay information and calibrates each of n clock delay units based on the reference clock delay information and a change in the first clock rate, wherein n is an integer greater than 1.