Oversampling A/D Converters with Improved Signal Transfer Functions

Focusing on complex delta-sigma ADCs, this book describes techniques to alleviate problems in implementation, such as image rejection deterioration due to mismatches. It also covers the advantages of filtering STFs and sets out an implementation architecture.

This book describes techniques for designing complex, discrete-time ADCs with signal-transfer functions that significantly filter interfering signals. The book provides an understanding of theory, issues, and implementation of discrete complex ADCs. The concepts developed in each chapter are further explained by applying them to a target application of ADCs in DTV receivers.

Focuses on complex ?S ADCs and techniques for their implementation Describes techniques to alleviate problems in implementation, such as image rejection deterioration due to mismatches Discusses advantages of filtering STFs and describes an architecture for their implementation Includes Matlab, Simulink, and Mathematica code used in design and behavioral simulations for design and implementation of complex ?S ADCs Includes supplementary material: sn.pub/extras

Texte du rabat

This book describes techniques for designing complex, discrete-time ADCs with signal-transfer functions that significantly filter interfering signals. The book provides an understanding of theory, issues, and implementation of discrete complex ADCs. The concepts developed in each chapter are further explained by applying them to a target application of ADCs in DTV receivers.

• Focuses on complex ADCs and techniques for their implementation;
• Describes techniques to alleviate problems in implementation, such as image rejection deterioration due to mismatches;
• Discusses advantages of filtering STFs and describes an architecture for their implementation;
• Includes Matlab, Simulink, and Mathematica code used in design and behavioral simulations for design and implementation of complex ADCs.

Contenu
Introduction.- A Low-IF Complex ADC-based DTV Receiver.- A Complex Modulator with an Improved STF.- Architectural-Level Design of the Experimental Modulator.- Integrated Circuit Implementation.- Conclusions.- Appendix A: Modulator Design Example.