Equalization and near-end crosstalk (NEXT) noise cancellation for 20-Gb/s 4-PAM backplane serial I/O interconnections
| Autor: | M. Maeng, Youngsik Hur, Hyoungsoo Kim, J. Laskar, S. Chandramouli, Edward Gebara, C. Chun, Franklin Bien |
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| Rok vydání: | 2005 |
| Předmět: |
Engineering
Radiation business.industry Electrical engineering Condensed Matter Physics CMOS Backplane Transmission (telecommunications) Pulse-amplitude modulation Electronic engineering Electrical and Electronic Engineering business High-pass filter Active filter Data transmission Active noise control |
| Zdroj: | IEEE Transactions on Microwave Theory and Techniques. 53:246-255 |
| ISSN: | 0018-9480 |
| DOI: | 10.1109/tmtt.2004.839311 |
| Popis: | Limitations in current backplane environments impede high-speed data transmission above 5 Gb/s. A system architecture to extend the transmission capacities of legacy backplanes is proposed. The incentives for using a four-level pulse amplitude modulation (4-PAM) scheme are also presented. The architecture is built from feed-forward equalizer and tunable filter elements for near-end crosstalk noise cancellation. Each of the circuits is implemented in a standard 0.18-/spl mu/m CMOS process. The building blocks of the architecture, which include an LC ladder, a modified Gilbert-cell multiplier with improved headroom, and a tunable active high-pass filter are described in detail. Results of the architecture are shown demonstrating 20-Gb/s 4-PAM signal transmission. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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