Design of High Voltage Xdsl Line Drivers in Standard CMOS

ISBN-13: 9781402067891 / Angielski / Twarda / 2008 / 185 str.

Michiel Steyaert; Bert Serneels

Opis

Design of high voltage xDSL line drivers in standard CMOS fits in the quest for highly efficient fully integrated xDSL modems for central office applications. The book focusses on the line driver, the most demanding building block of the xDSL modem for lowering power. To reduce the cost, the cheapest technology is selected: standard CMOS, without any extra process options to increase the nominal supply voltage. The emphasis lies on the analysis, design and implementation of high voltage highly efficient line drivers in mainstream CMOS. Design of high voltage xDSL line drivers in standard CMOS covers the total design flow of monolithic CMOS high voltage circuits. The book is essential reading for analog design engineers and researchers in the field and is also suitable as a text book for an advanced course on the subject."

Spis treści

Preface. List of Abbreviations and Symbols. 1. Introduction. 1.1 Motivation of the Work. 1.2 Organisation of the Book. 2. Digital Subscriber Line. 2.1 DSL in a Nutshell. 2.2 The Channel. 2.3 Modulation Techniques. 2.4 Solutions for xDSL Line Drivers. 2.5 Conclusions. 3. The SOPA xDSL Line Driver. 3.1 The Describing Function Analysis Method. 3.2 Behavior Model of the SOPA. 3.3 High Voltage SOPA Amplifiers. 3.4 Conclusions. 4. High Voltage Design Considerations. 4.1 CMOS Scaling. 4.2 Stacking Devices. 4.3 Conclusions. 5. High Voltage Implementations in Standard CMOS. 5.1 A 7.5 V Output Driver in a 2.5 V 0.25 µm CMOS Technology. 5.2 A 5.5 V Output Driver in a 1.2 V 130 nm CMOS Technology. 5.3 Conclustions. 6. High Voltage Line Driver Realisations. 6.1 A zeroth Order SOPA in 130 nm CMOS. 6.2 A First Order SOPA in 130 nm CMOS. 6.3 Conclusions. 7. Conclusions. 7.1 Main Contributions and Achievements. References. Index.

O autorze

Michiel Steyaert is well established in the international Circuits & Systems community, his expertise lies in Analog Circuits and RF Design

Blurb

Design of high voltage xDSL line drivers in standard CMOS fits in the quest for highly efficient fully integrated xDSL modems for central office applications. The book focusses on the line driver, the most demanding building block of the xDSL modem for lowering power. To reduce the cost, the cheapest technology is selected: standard CMOS, without any extra process options to increase the nominal supply voltage. The emphasis lies on the analysis, design and implementation of high voltage highly efficient line drivers in mainstream CMOS.

Design of high voltage xDSL line drivers in standard CMOS starts from the Self-Oscillating Power Amplifier (SOPA), a highly efficient line driver for xDSL applications. However, in the nano-electronic era, the low supply voltage of CMOS results in very low efficiencies for line drivers and power amplifiers in general. In this book a technique is developed for designing high voltage circuits in a low voltage mainstream CMOS technology. Several practical design examples reveal the subtleties and challenges encountered during the design of high voltage circuits in low voltage standard CMOS. Such a high voltage buffer is then integrated into the SOPA architecture leading to the implementation of a high voltage highly efficient aDSL2+ line driver in a 1.2V 130nm mainstream CMOS technology.

Design of high voltage xDSL line drivers in standard CMOS covers the total design flow of monolithic CMOS high voltage circuits. The book is essential reading for analog design engineers and researchers in the field and is also suitable as a text book for an advanced course on the subject.