5-6.4 Gbps 12 channel transceiver with pre-emphasis and equalizer

Author

Higashi, Hirohito ; Masaki, Syunitirou ; Kibune, Masaya ; Matsubara, Satoshi ; Chiba, Takaya ; Doi, Yoshiyasu ; Yamaguchi, Hisakatsu ; Takauchi, Hideki ; Ishida, Hideki ; Gotoh, Kohtaroh ; Tamura, Hirotaka

Author_Institution

Fujitsu Labs. Ltd., Kawasaki, Japan

fYear

2004

Firstpage

130

Lastpage

133

Abstract

A 5 Gbps to 6.4 Gbps transceiver consists of a parallel 12-channel transmitter (Tx), 12-channel receiver (Rx), clock generators based on LC-VCO PLLs, and a clock recovery unit. The Tx has a 5-tap pre-emphasis filter, and the Rx has an equalizer with intersymbol interference (ISI) monitor. Monitoring the ISI enables a fine adjustment of the loss compensation. The pre-emphasis filter in the Tx and the equalizer in the Rx can compensate for a transmission loss of up to 20 dB and 15 dB at 6.4 Gbps, respectively. The areas of the Tx and Rx channels including the PLLs are both 3.92 mm². The transmitter dissipates 150 mW/channel at 6.4 Gbps when compensating for a loss of 20 dB, the receiver 90 mW/channel when compensating for 15 dB loss.

Keywords

CMOS integrated circuits; equalisers; phase locked loops; transceivers; voltage-controlled oscillators; 15 dB; 20 dB; 5 to 6.4 Gbit/s; 5-6.4 Gbps 12 channel transceiver; LC-VCO; clock generators; clock recovery unit; equalizer; pre-emphasis; transmission loss; Adaptive equalizers; Circuits; Clocks; Finite impulse response filter; Intersymbol interference; Monitoring; Phase locked loops; Propagation losses; Transceivers; Transmitters;

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.2004.1346533

Filename

1346533