Read clock interface for read channel device

A read clock interface comprising:

• a serial-to-parallel converter for receiving serial data read out from a disk and converting the serial data to parallel data;
• and
• a state machine for receiving a clock signal having a frequency one-half that of a frequency at which said serial data is read out from said disk and frequency dividing said clock signal to generate a conversion clock signal consisting of alternating conversion cycles each having an even number of cycles of said clock signal;
• wherein said serial-to-parallel converter converts said serial data to parallel data at each conversion cycle of said conversion signal;
• and
• wherein said conversion signal consists of alternating conversion cycles of 16 and 18 cycles of said clock signal.

A method of converting serial data to parallel data, comprising the steps of:

• receiving serial data read out from a disk;
• receiving a clock signal having a frequency one-half that of a frequency at which said serial data is read out from said disk;
• frequency dividing said clock signal to generate a conversion clock signal consisting of alternating conversion cycles each having an even number of cycles of said clock signal;
• and
• converting said serial data to parallel data at each conversion cycle of said conversion clock signal;
• wherein said conversion signal consists of alternating conversion cycles of 16 and 18 cycles of said clock signal.