Title :
D/A conversion interface design for DMT-ADSL applications
Author :
Wikner, J.J. ; Yonghong Gao ; Nianxiang Tan
Author_Institution :
Dept. of Electr. Eng., Linkoping Univ., Sweden
Abstract :
For high-speed internet access, high-performance analog front-ends are needed, and data converters are one of the crucial building blocks in these bent-ends. In this article we will report on the modeling and design of a D/A conversion interface for a DMT (discrete multi tone)-based ADSL system that could be integrated into a complete CMOS analog front-end. We will discuss the DMT transmit spectrum and its impacts on data converters, we will focus on modeling and simulating of the whole D/A interface, and we will describe a test chip implemented in a 0.6 μm CMOS process.
Keywords :
CMOS analogue integrated circuits; digital subscriber lines; digital-analogue conversion; integrated circuit design; 0.6 micron; CMOS analog front-end; D/A conversion interface design; DMT-ADSL; data converter; high-speed internet access; Chip scale packaging; DSL; Echo cancellers; Frequency division multiplexing; Internet telephony; Modems; OFDM modulation; Passband; Quadrature amplitude modulation; Wideband;
Journal_Title :
Circuits and Devices Magazine, IEEE
