METHOD AND APPARATUS FOR MEASURING JITTER

摘要

A method and an apparatus for measuring jitter of an optical disk are provided to improve operation speed and apply to a high speed optical disk by storing a jitter value on an on-chip memory. A method for measuring jitter comprises the steps of: detecting a point of zero cross from digital RF data by receiving the digital RF data and a system clock signal, and calculating a jitter value(92); detecting a data pattern at the point of zero cross(93); and storing the calculated jitter value on a jitter memory corresponding to the detected data pattern in a matrix type(94).