PLL CIRCUIT, AND OPTICAL DISK REPRODUCING APPARATUS HAVING PLL CIRCUIT

摘要

PROBLEM TO BE SOLVED: To provide a PLL circuit capable of shortening a period of time required for synchronizing an analog data signal with a clock signal, and to provide an optical disk reproducing apparatus having the PLL circuit. SOLUTION: In the PLL circuit for converting the analog data signal into a digital data signal synchronously with the generated clock signal and generating the clock signal based on this digital data signal, a digital waveform equalization processing is applied to the digital data signal only during the analog data signal is synchronized with the clock signal. COPYRIGHT: (C)2005,JPO&NCIPI