Title :
An analog DFE for disk drives using a mixed-signal integrator
Author :
Le, Michael Q. ; Hurst, Paul J. ; Dyer, Kenneth C.
Author_Institution :
Dept. of Electr. & Comput. Eng., California Univ., Davis, CA, USA
fDate :
5/1/1999 12:00:00 AM
Abstract :
An analog adaptive decision-feedback equalizer (DFE) is described. The DFE cancels intersymbol interference using four feedback taps, and a fifth tap cancels dc offset. The coefficient for each tap is adapted using a small mixed-signal integrator. The DFE dissipates 220 mW at a data rate of 150 Mb/s. The active area is 1.8 mm2 in a 1-μm CMOS process
Keywords :
CMOS integrated circuits; adaptive equalisers; decision feedback equalisers; disc drives; integrating circuits; intersymbol interference; mixed analogue-digital integrated circuits; 1 micron; 150 Mbit/s; 220 mW; CMOS process; active area; adaptive decision-feedback equalizer; analog DFE; dc offset; disk drives; feedback taps; intersymbol interference; mixed-signal integrator; Computer network reliability; Decision feedback equalizers; Detectors; Disk drives; Interference cancellation; Intersymbol interference; Laboratories; Magnetic field measurement; Sampling methods; Solid state circuits;
Journal_Title :
Solid-State Circuits, IEEE Journal of
