Patent ID: 8213106

Claim:
A disk drive comprising: a disk having a disk surface including a plurality of servo zones of different servo frequencies; a head actuatable over the disk surface, the head operable to generate a signal indicative of at least a portion of a servo sector in a first servo zone; a frequency detector operable to determine a servo frequency associated with the servo sector; and a read channel coupled to the head, the read channel including: a voltage-controlled oscillator operable to provide a reference clock; frequency multiplier/divider circuitry operable to multiply or divide the reference clock from the voltage-controlled oscillator by a first factor to generate a first servo timing recovery clock for the first servo zone of the plurality of servo zones having different servo frequencies, the first factor selected based at least in part on the servo frequency from the different servo frequencies determined by the frequency detector; and a servo demodulator operable to demodulate the at least a portion of the servo sector using the first servo timing recovery clock.