A Reconfigurable 0.18-μm CMOS Equalizer IC with an Improved Tunable Delay-Line for 10-Gb/sec Backplane Serial I/O Links

Author

Bien, Franklin ; Kim, Hyoungsoo ; Hur, Youngsik ; Maeng, Moonkyun ; Gebara, Edward ; Laskar, Joy

Author_Institution

Sch. of Electr. & Comput. Eng., Georgia Inst. of Technol., Atlanta, GA

fYear

2006

fDate

11-16 June 2006

Firstpage

490

Lastpage

493

Abstract

In this paper, a reconfigurable CMOS equalizer is presented to accommodate vast variety of backplane channel loss characteristics. Backplane channels over different trace lengths and dielectric materials were measured and characterized. Feed-forward equalizer (FFE) topology with finite impulse response (FIR) architecture was chosen for optimal equalization for the corresponding backplane configurations. For a reconfigurable FFE IC implementation, wide-range tunable delay-line (15-ps ~ 74-ps) and variable tap-gain amplifier were fabricated in a 0.18-mum standard CMOS technology. The proposed reconfigurable FFE demonstrated successful equalization at 10Gb/sec over various channel configurations with 26mW power dissipation from a 1.8-V supply

Keywords

CMOS integrated circuits; FIR filters; circuit tuning; delay lines; dielectric materials; equalisers; 0.18 micron; 1.8 V; 10 Gbit/s; 26 mW; CMOS equalizer integrated circuit; CMOS technology; FIR filters; backplane channel loss characteristics; backplane serial I/O links; dielectric materials; feed-forward equalizer topology; finite impulse response architecture; reconfigurable integrated circuit; tunable delay-line; variable tap-gain amplifier; Backplanes; CMOS integrated circuits; CMOS technology; Delay; Dielectric materials; Dielectric measurements; Equalizers; Feedforward systems; Length measurement; Topology; 10Gb/sec; Backplane; CMOS; FFE; FIR Filter; Reconfigurable Equalizer; Tunable Delay-Line;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium Digest, 2006. IEEE MTT-S International

Conference_Location

San Francisco, CA

ISSN

0149-645X

Print_ISBN

0-7803-9541-7

Electronic_ISBN

0149-645X

Type

conf

DOI

10.1109/MWSYM.2006.249617

Filename

4014941