Title :
A 500 MHz 50 mW Viterbi detector for DVD systems using simplified ACS and new path memory architecture
Author :
Yamamoto, A. ; Nakahira, H. ; Takahashi, T. ; Yamamoto, T. ; Matsuzawa, A.
Author_Institution :
Matsushita Electr. Ind. Co. Ltd., Osaka, Japan
Abstract :
A novel Viterbi detector has been developed for DVD Partial Response Maximum Likelihood (PRML) read channel systems. The Viterbi detector employs new calculation procedure of Add-Compare-Select (ACS) and new path memory architecture. A prototype chip has been fabricated in 0.18 /spl mu/m 1PS3AL CMOS technology, and the Viterbi detector demonstrates a half active area (0.156 mm/sup 2/) and power consumption (50 mW at 500 MHz) compared with conventional one.
Keywords :
CMOS digital integrated circuits; VLSI; Viterbi detection; convolutional codes; error correction codes; low-power electronics; maximum likelihood detection; optical disc storage; partial response channels; 0.18 micron; 50 mW; 500 MHz; ACS; CMOS technology; DVD systems; Viterbi detector; add-compare-select; convolutional code; error correction capability; half active area; partial response maximum likelihood; path memory architecture; power consumption; read channel systems; CMOS technology; DVD; Detectors; Energy consumption; Maximum likelihood detection; Memory architecture; Multiplexing; Registers; Signal processing algorithms; Viterbi algorithm;
Conference_Titel :
VLSI Circuits Digest of Technical Papers, 2002. Symposium on
Conference_Location :
Honolulu, HI, USA
Print_ISBN :
0-7803-7310-3
DOI :
10.1109/VLSIC.2002.1015098
