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

fYear

2010

fDate

14-16 Sept. 2010

Firstpage

550

Lastpage

553

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;

fLanguage

English

Publisher

ieee

Conference_Titel

ESSCIRC, 2010 Proceedings of the

Conference_Location

Seville

ISSN

1930-8833

Print_ISBN

978-1-4244-6662-7

Type

conf

DOI

10.1109/ESSCIRC.2010.5619584

Filename

5619584