Digital Subsampling Phase Lock Techniques For Frequency Synthesis And Polar Transmission
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Digital Subsampling Phase Lock Techniques for Frequency Synthesis and Polar Transmission
This book explains concepts behind fractional subsampling-based frequency synthesis that is re-shaping today’s art in the field of low-noise LO generation. It covers advanced material, giving clear guidance for development of background-calibrated environments capable of spur-free synthesis and wideband phase modulation. It further expands the concepts into the field of subsampling polar transmission, where the newly developed architecture enables unprecedented spectral efficiency levels, unquestionably required by the upcoming generation of wireless standards.
From 2D to 3D Photonic Integrated Circuits
The integration of photonics and electronics has transformed the landscape of modern technology. At the forefront of this revolution is the development of Photonic Integrated Circuits (PICs). Historically rooted in the traditional 2-D fabrication processes inherited from electronic Integrated Circuits, PICs shifted to 3-D configurations, introducing new design philosophies that impact scalability, efficiency, and performance. This convergence of electronic and photonic circuits presents unique challenges and great opportunities. This book provides an introduction to photonic integrated circuits and the transition from 2D to 3D PICs. It then describes design and fabrication techniques of 3D PICs and related challenges and solutions. Finally, applications of 3D photonics, emerging technologies and industry outlook are also discussed.
All-Digital Frequency Synthesizer in Deep-Submicron CMOS
Author: Robert Bogdan Staszewski
language: en
Publisher: John Wiley & Sons
Release Date: 2006-09-22
A new and innovative paradigm for RF frequency synthesis and wireless transmitter design Learn the techniques for designing and implementing an all-digital RF frequency synthesizer. In contrast to traditional RF techniques, this innovative book sets forth digitally intensive design techniques that lead the way to the development of low-cost, low-power, and highly integrated circuits for RF functions in deep submicron CMOS processes. Furthermore, the authors demonstrate how the architecture enables readers to integrate an RF front-end with the digital back-end onto a single silicon die using standard ASIC design flow. Taking a bottom-up approach that progressively builds skills and knowledge, the book begins with an introduction to basic concepts of frequency synthesis and then guides the reader through an all-digital RF frequency synthesizer design: Chapter 2 presents a digitally controlled oscillator (DCO), which is the foundation of a novel architecture, and introduces a time-domain model used for analysis and VHDL simulation Chapter 3 adds a hierarchical layer of arithmetic abstraction to the DCO that makes it easier to operate algorithmically Chapter 4 builds a phase correction mechanism around the DCO such that the system's frequency drift or wander performance matches that of the stable external frequency reference Chapter 5 presents an application of the all-digital RF synthesizer Chapter 6 describes the behavioral modeling and simulation methodology used in design The final chapter presents the implementation of a full transmitter and experimental results. The novel ideas presented here have been implemented and proven in two high-volume, commercial single-chip radios developed at Texas Instruments: Bluetooth and GSM. While the focus of the book is on RF frequency synthesizer design, the techniques can be applied to the design of other digitally assisted analog circuits as well. This book is a must-read for students and engineers who want to learn a new paradigm for RF frequency synthesis and wireless transmitter design using digitally intensive design techniques.