A 4-channel 3.125Gb/s/ch CMOS transceiver with 30dB equalization

Author

Gai, Weixin ; Hidaka, Yasuo ; Koyanagi, Yoichi ; Jiang, Jian Hong ; Osone, Hideki ; Horie, Takeshi

Author_Institution

Fujitsu Labs. of America Inc., Sunnyvale, CA, USA

fYear

2004

Firstpage

138

Lastpage

141

Abstract

A 4-channel 3.125Gb/s/ch CMOS transceiver has been developed. The receiver includes a second-order derivative analog equalizer to compensate the frequency-dependent attenuation. Equalization can be performed adaptively through monitoring the residual inter-symbol-interference. To talk with a system without receiver equalization, a multiple-tap filter for pre-emphasis is implemented in transmitter. Either analog filter or pre-emphasis is capable of 30dB equalization. Transceiver design is compatible with XAUI and 10GBASE-CX4, but extending the reach over copper cabling. Evaluation shows lower than 10^-12 BER has been achieved with 30-meter AWG 24 cable.

Keywords

CMOS integrated circuits; equalisers; transceivers; 30dB equalization; 4-channel 3.125Gb/s/ch CMOS transceiver; analog filter; frequency-dependent attenuation; multiple-tap filter; pre-emphasis; residual inter-symbol-interference; second-order derivative analog equalizer; Adaptive equalizers; Attenuation; CMOS technology; Clocks; Dielectric losses; Finite impulse response filter; Frequency; Optical transmitters; Transceivers; Wire;

fLanguage

English

Publisher

ieee

Conference_Titel

VLSI Circuits, 2004. Digest of Technical Papers. 2004 Symposium on

Print_ISBN

0-7803-8287-0

Type

conf

DOI

10.1109/VLSIC.2004.1346535

Filename

1346535