A wide band CMOS Class-D line driver for wireline communication

Abstract

A wide band Class-D line driver for wireline communications is presented in a low voltage CMOS technology. The new driver improves switching frequencies by a factor of six compared to other works. To reach wide bandwidths, a new NMOS only output stage and a new transconductor are developed. Simulated results of the complete line driver implemented in 0.13µm CMOS, with a 30MHz HomePlug AV input signal and 160MHz switching frequency, show an efficiency of 22.8% with 111mW injected power.

Design of the line driver for ADSL communication systems

“…Of course, the voltage supply defines the parameters of the circuitry, but in different manner.Standard CMOS inverter with proper transistors dimensions could be a natural solution for ADSL line driver when AS modulator is used. The inverter as a line driver amplifier is studied in numerous publications [3,29,30]. are among them.…”