An MLSE receiver for electronic-dispersion compensation of OC-192 fiber links

A 9.953 to 12.5Gb/s MLSE receiver consisting of an AFE IC in a 0.18μ m 3.3V f
_t
=75GHz, and a digital IC in a 0.13pm 1.2V CMOS is presented. The AFE IC features a 7.5GHz 40dB VGA, a 4b 12.5GS/S ADC, a dispersion-tolerant clock-recovery unit, and a 1:8 DEMUX. The digital IC implements an 8-parallel, delayed recursion MLSE architecture and a nonlinear channel estimator. The 4.5W receiver meets the SONET jitter specifications with 2200ps/nm of dispersion at BER=10
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