mm-Wave and Logic Acceleration Techniques for 100 Gbit Decision Feedback Equalizer

Conference: GeMiC 2009 - German Microwave Conference
03/16/2009 - 03/18/2009 at München, Germany

Proceedings: GeMiC 2009

Pages: 4Language: englishTyp: PDF

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Awny, A.; Thiede, A. (Dept. Of High-Frequency Electronics, University of Paderborn)
Korndörfer, F.; Scheytt, J. Christoph (IHP GmbH, Frankfurt/Oder)

The design of very high speed broadband latched comparators in 0.13-µm SiGe bipolar technology is presented. The comparators are used as a broadband front-end of a 1-tap decision feedback equalizer (DFE) for 100 Gb/s optical communication. Techniques for measuring the bandwidth of the designed comparators are presented. Measurement results show a 3 dB bandwidth of about 45.5 GHz. A half rate parallel lookahead architecture is used for the implementation of the DFE with modifications to relax the timing constraints of its components.