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An analog front-end signal processor for a 64 Mbits/s PRML hard-disk drive channel

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14 Author(s)
D. Choi ; Texas Instrum. Inc., Dallas, TX, USA ; R. Pierson ; F. Trafton ; B. Sheahan
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This BiCMOS IC contains all the analog front-end components necessary for the design of a 21-64 Mb/s HDD channel. Major functional blocks include an automatic gain control circuit having both analog and digital modes of operation, a programmable filter with 6-33 MHz bandwidth range, two phase-locked loops with 24-72 MHz center frequency ranges, a differential 6 bit flash A/D converter with 24-72 MHz sampling rates, and a write precompensator having 600 ps step size

Published in:

IEEE Journal of Solid-State Circuits  (Volume:29 ,  Issue: 12 )