A 5Gb/s adaptive equalizer using filter switching

Author

Tomioka, Tsutomu ; Fujita, Takahiro ; Sasaki, Kozue ; Sato, Hiroki ; Hyogo, Akira ; Sekine, Keitaro

Author_Institution

Dept. of Electr. Eng., Tokyo Univ. of Sci., Noda

fYear

2008

fDate

Nov. 30 2008-Dec. 3 2008

Firstpage

688

Lastpage

691

Abstract

This paper presents an adaptive equalizer circuit using filter switching for 5 Gb/s data communication over electrical backplane. Most of conventional equalizers are based on amplification of high frequency component of the received signal, and the performance degrades when the line is very short and the attenuation is small. The proposed one solves this issue by using two signal paths, high-pass and low-pass path, and switching them based on the received signal. It can compensate 5 Gb/s PRBS through FR4 backplane in 0 cm, 25 cm, 50 cm and 75 cm long both with and without pre-emphasis.

Keywords

adaptive equalisers; adaptive filters; data communication; adaptive equalizer circuit; bit rate 5 Gbit/s; data communication; electrical backplane; filter switching; Adaptive equalizers; Adaptive filters; Communication switching; Degradation; Distributed parameter circuits; Frequency response; Low pass filters; Power transmission lines; Switching circuits; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 2008. APCCAS 2008. IEEE Asia Pacific Conference on

Conference_Location

Macao

Print_ISBN

978-1-4244-2341-5

Electronic_ISBN

978-1-4244-2342-2

Type

conf

DOI

10.1109/APCCAS.2008.4746117

Filename

4746117