Title :
A mixed-signal decision-feedback equalizer that uses a look-ahead architecture
Author :
Kajley, Ravinder S. ; Hurst, Paul J. ; Brown, James E C
Author_Institution :
Solid-State Circuits Res. Lab., California Univ., Davis, CA, USA
fDate :
3/1/1997 12:00:00 AM
Abstract :
A mixed-signal decision-feedback equalizer (DFE) that uses a look-ahead architecture is described. The parallelism in the look-ahead DFE (LA DFE) achieves an increase in the data rate over a conventional DFE with a small increase in area. Fully differential analog circuits perform the convolution operation in the LA DFE, and the coefficient adaption is carried out by digital circuits. The LA DFE occupies 23 mm 2 in a 2-μm CMOS process and operates at 50 Mb/s while dissipating 260 mW
Keywords :
CMOS integrated circuits; adaptive equalisers; convolution; data communication equipment; decision feedback equalisers; hard discs; mixed analogue-digital integrated circuits; parallel processing; 2 micron; 260 mW; 50 Mbit/s; CMOS process; DFE chip; ISI; coefficient adaption; convolution operation; digital circuits; fully differential analog circuits; hard disc drives; look-ahead architecture; mixed-signal decision-feedback equalizer; parallelism; Adaptive equalizers; Analog circuits; Decision feedback equalizers; Detectors; Disk recording; Intersymbol interference; Laboratories; Maximum likelihood detection; Solid state circuits; Timing;
Journal_Title :
Solid-State Circuits, IEEE Journal of
