Title :
A CMOS 4× speed DVD read channel IC
Author :
Kim, Chun-Sup ; Cho, Gea-Ok ; Kim, Yong-Hwan ; Song, Bang-Sup
Author_Institution :
ASIC Center, Samsung Electron., Suwon, South Korea
fDate :
8/1/1998 12:00:00 AM
Abstract :
Optical disk is a data storage medium of the highest density, and is widely used for compact disk and digital versatile disk (CD/DVD) players and read-only memory and random-access memory (ROM/RAM) drives. In this work, all functions for 1× speed DVD read channels are integrated on a single 0.8-μm CMOS chip. A ninth-order pulse slimming equalizer with two zeros is made programmable to cover a frequency range of over five octaves from 0.7 to 25 MHz with high-frequency boost of 12 db and group delay variation of less than ±3%. A one-beam tracking error detector features six allpass delay equalizers with a tunable delay range of 93 ns at 2 MHz. Other control functions integrated on the chip are three-beam tracking error generator, laser power control circuit, and detectors for track crossing, disk defect, signal envelope, focus error, etc. The chip occupies 25 mm2 and consumes 500 mW at 5 V
Keywords :
CMOS integrated circuits; delay circuits; equalisers; error detection; optical disc storage; 0.7 to 25 MHz; 0.8 micron; 5 V; 500 mW; CMOS DVD read channel IC; allpass delay equalizer; data storage; digital versatile disk; laser power control circuit; one-beam tracking error detector; optical disk; programmable filter; pulse slimming equalizer; three-beam tracking error generator; CD recording; CMOS digital integrated circuits; CMOS integrated circuits; DVD; Delay; Equalizers; Error correction; High speed integrated circuits; Photonic integrated circuits; Random access memory;
Journal_Title :
Solid-State Circuits, IEEE Journal of
