Saclable “High Voltages” Integrated Circuit Design for XDSL Type of Applications

Service providers are largely adopting ADSL technology and telcos to deliver high-speed data communication over traditional copper twisted pair. Continuous growth of this market has led to new requirements for lower cost, higher transmission bandwidth, improved power efficiency and longer reach. Most of these targets are heavily depending on the electrical performances of XDSL Line Drivers and Receiver which for cost reasons are, nowadays, often embedded with other functions. This paper describes most recent advances in semiconductor technology and design techniques specifically adopted to comply with these technical demands. Practical examples of Line Driver realized in different technologies and adopting different circuit architectures are also reported.