Title :
A 10 Gb/s adaptive analog decision feedback equalizer for multimode fiber dispersion compensation in 0.13 µm CMOS
Author :
Kargar, Mahyar ; Green, Michael M.
Author_Institution :
Dept. of EECS, Univ. of California, Irvine, Irvine, CA, USA
Abstract :
A 10 Gb/s adaptive analog decision feedback equalizer (DFE) with 6 taps is realized in 0.13 μm CMOS. A modified Cherry-Hooper stage is designed as the delay element in the feed-forward path. An analog implementation of the LMS algorithm is used to continuously adapt the feedback filter coefficients. A clock and data recovery (CDR) circuit is used to extract the clock from the DFE output. The adaptive DFE dissipates 452 mW and can equalize PRBS data corrupted by a 300m-long multimode fiber (MMF) achieving BER <; 10-13.
Keywords :
CMOS integrated circuits; adaptive equalisers; clocks; decision feedback equalisers; filters; CMOS; Cherry-Hooper stage; LMS algorithm; adaptive analog decision feedback equalizer; bit rate 10 Gbit/s; clock and data recovery circuit; delay element; feed-forward path; feedback filter coefficients; multimode fiber dispersion compensation; size 0.13 mum; Clocks; Decision feedback equalizers; Delay; Optical fiber communication; Optical fiber dispersion; Optical fibers; Optical filters;
Conference_Titel :
ESSCIRC, 2010 Proceedings of the
Conference_Location :
Seville
Print_ISBN :
978-1-4244-6662-7
DOI :
10.1109/ESSCIRC.2010.5619584
