A PRML Reamrite IC operating up to 450MbitIs is presented. The chip implements a 16-state EPR4 Parity Check Time Variant Viterbi detector and a digital servo. A 2426 code with parity check improves the robustness to white noise, media noise and to off-track conditions. The device is integrated in a mature 0.35pn BiCMOS technology with a die size of 13 mm2 (step and repeat) and dissipates 1.9 W (in Read Mode) at 450MbiUs.
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