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A 550-MSample/s 8-Tap FIR digital filter for magnetic recording read channels

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3 Author(s)
Staszewski, R.B. ; Texas Instrum. Inc., Dallas, TX, USA ; Muhammad, K. ; Balsara, P.

An area-efficient low-power and low-latency 550-MSample/s FIR filter for magnetic recording read channel applications is presented. A parallel direct type II architecture operates on real-time deinterleaved (even and odd) input data samples and employs a fast low-area multiplier based on selection of radix-8 premultiplied coefficients in conjunction with one-hot encoded bus leading to a very compact layout and reduced power dissipation. The chip has been fabricated using a 0.18-/spl mu/m L-effective CMOS technology and is currently being used in commercial applications.

Published in:

Solid-State Circuits, IEEE Journal of  (Volume:35 ,  Issue: 8 )