Title :
A reconfigurable equalizer realization
Author :
Li, Qing ; Ding, Wei
Author_Institution :
Beijing Univ. of Posts & Telecommun., China
Abstract :
Architecture and performance characteristics of an adaptive and programmable line equalizer are described. A digitally reconfigurable filter structure with an operational transconductance amplifier (OTA) is introduced. The versatile implementation of a wide AGC dynamic range and precise and quick adjustment for different conditions and different transmission bit rates in the range from 1kbps to 2mbps is described. The approach taken here is to design a flexible, firmware-definable circuit with universal bit processing, so that it can be applied to a wide range of dissimilar systems in telecommunication networks
Keywords :
active filters; adaptive filters; automatic gain control; data communication equipment; digital communication systems; equalisers; 1 kbit/s to 2 Mbit/s; OTA; adaptive equaliser; digitally reconfigurable filter; firmware-definable circuit; operational transconductance amplifier; programmable line equalizer; reconfigurable equalizer; telecommunication networks; universal bit processing; wide AGC dynamic range; Capacitors; Digital filters; Dynamic range; Equalizers; Linearity; Operational amplifiers; Signal processing; Switches; Telecommunications; Transconductance;
Conference_Titel :
Circuits and Systems, 1991. Conference Proceedings, China., 1991 International Conference on
Conference_Location :
Shenzhen
DOI :
10.1109/CICCAS.1991.184314
