Western Digital Technologies, Inc.

Michael J Ross

Richard Leo Galbraith

John Thomas Contreras

Weldon Mark Hanson

Niranjay Ravindran

Iouri Oboukhov

Derrick E Burton

Pradhan Bellam

Example channel circuits, data storage devices, and methods for asynchronous sampling from an oversampled analog-to-digital converter are described. The channel circuit may include an analog-to-digital converter configured to generate an oversampled digital signal from an analog data signal using a sample rate that is an integer multiple of the baud rate of the channel circuit. A digital sample interpolator may then interpolate interpolated digital signal values from multiple signal values of the oversampled digital signal and select values at baud rate to generate a baud rate digital signal. The baud rate digital signal may be used by an iterative detector in a timing loop and, once a target timing is achieved, for the iterative detector to detect data bits from the interpolated digital signal.

Channel circuit with asynchronous sampling from an oversampled analog-to-digital converter

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Rochester, MN, United States of America

Michael J Ross