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Design and Analysis of High Efficiency Line Drivers for xDSL : The Springer International Series in Engineering and Computer Science - Tim Piessens

Design and Analysis of High Efficiency Line Drivers for xDSL

The Springer International Series in Engineering and Computer Science

Hardcover Published: 1st March 2004
ISBN: 9781402077272
Number Of Pages: 235

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Design and Analysis of High Efficiency Line Drivers for xDSL covers the most important building block of an xDSL (ADSL, VDSL, ) system: the line driver. Traditional Class AB line drivers consume more than 70 per cent of the total power budget of state-of-the-art ADSL modems. This book describes the main difficulties in designing line drivers for xDSL. The most important specifications are elaborated staring from the main properties of the channel and the signal properties. The traditional (class AB), state-of-the-art (class G) and future technologies (class K) are discussed. The main part of Design and Analysis of High Efficiency Line Drivers for xDSL describes the design of a novel architecture: the Self-Oscillating Power Amplifier or SOPA. This architecture uses a non-linear, asynchronous modulation scheme that enables highly efficient, highly linear transmission. The concept has been proven by two implementations in a digital CMOS technology: a G-Lite compliant line driver with 61 per cent efficiency and a full ADSL-VDSL downstream compliant power amplifier with 47 per cent power efficiency. The proposed architecture is fully analysed and complete design plans including CMOS sca

Preface.
List of Figures.
List of Tablesp. 1
Introduction
Motivation of the Work
Organisation of the Bookp. 2
Traditional xDSL Line Driversp. 1
Broadband Communication Technologyp. 2
The Channel
Modulation Techniques
Driving the Line
Solutions for xDSL Line Drivers
Conclusionsp. 3:
Describing Function Analysisp. 1
Non-linear Systemsp. 2
The Describing Function Methodp. 3
Conclusionsp. 4
Behavioural Modelling of the SOPAp. 1
Reference Modelp. 2
Zeroth Order SOPAsp. 3
Higher Order SOPA Amplifiersp. 4
Final Remarks and Conclusionsp. 5
Design Plan and CAD Toolsp. 1
Design Plan Synthesisp. 2
CAD-tools to Support the Design Methodologyp. 3
Conclusionsp. 6
Realisations in Mainstream CMOSp. 1
A Zeroth Order SOPAp. 2
A Third Order SOPA in .35 mum CMOSp. 3
Conclusions
7: Conclusionsp. 1
The Objectives
Glossary
Appendices
Stability Analysis of the Coupled SOPAp. 1
Stability Criterionp. 2
Polar Form of the Coupled Open Loop Transfer Functionp. 3
Calculation of the Stability Conditions
References
Index
Table of Contents provided by Publisher. All Rights Reserved.

ISBN: 9781402077272
ISBN-10: 1402077270
Series: The Springer International Series in Engineering and Computer Science
Audience: Professional
Format: Hardcover
Language: English
Number Of Pages: 235
Published: 1st March 2004
Publisher: Springer-Verlag New York Inc.
Country of Publication: US
Dimensions (cm): 23.5 x 15.5  x 1.91
Weight (kg): 0.56