A Poly Phased Time Interleaved Radio Frequency Digital To Analog Converter Poly Ti Rf Dac
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A Poly-phased, Time-interleaved Radio Frequency Digital-to-analog Converter (Poly-TI-RF-DAC)
With increasing data rates and new communication standards owing to substantial advancements in digitizing and signal processing capabilities over the last century, the radio spectrum is increasingly becoming a finite and expensive resource. Furthermore, radar systems and 5G communication systems have revealed the need for gigahertz-frequency signal generation with flexible frequency planning and minimal spurious emissions. Advanced digital-to-analog converters (DACs), along with associated filtering, are critical enablers of these new systems and play a key role in meeting stringent system requirements. In conventional implementations, however, high quality filters are specific to one frequency band thereby limiting their operational agility. Therefore, a DAC architecture that removes undesired image replicas, mixer sidebands, and harmonic nonlinearities is an essential component for flexible frequency synthesis as it allows for reduced filtering requirements while enabling new software-defined transmitter techniques.This dissertation aims to provide a quantitative study and analysis of a poly-phased, time-interleaved Nyquist radio frequency digital-to-analog converter (Poly-TI-RF-DAC) for use in spectrum-agile and software-defined transmitters. Beginning with the fundamental understanding of high-speed DAC capabilities and limitations, the mathematical and behavioral analyses give insight into the signal, sideband, and image replica locations of the proposed architecture. Additionally, the use of a mixing DAC as the core structure is discussed along with how nonlinearities can be canceled with the appropriate choice of frequency planning.
Design, Modeling and Testing of Data Converters
Author: Paolo Carbone
language: en
Publisher: Springer Science & Business Media
Release Date: 2013-10-05
This book presents the a scientific discussion of the state-of-the-art techniques and designs for modeling, testing and for the performance analysis of data converters. The focus is put on sustainable data conversion. Sustainability has become a public issue that industries and users can not ignore. Devising environmentally friendly solutions for data conversion designing, modeling and testing is nowadays a requirement that researchers and practitioners must consider in their activities. This book presents the outcome of the IWADC workshop 2011, held in Orvieto, Italy.
Analog Circuit Design
Author: Herman Casier
language: en
Publisher: Springer Science & Business Media
Release Date: 2008-03-19
Analog Circuit Design is based on the yearly Advances in Analog Circuit Design workshop. The aim of the workshop is to bring together designers of advanced analogue and RF circuits for the purpose of studying and discussing new possibilities and future developments in this field. Selected topics for AACD 2007 are: (1) Sensors, Actuators and Power Drivers for the Automotive and Industrial Environment (Tue 27 March) - Chaired by Herman Casier, AMI Semiconductor Fellow, Belgium; (2) Integrated PA's from Wireline to RF (Wed 28 March) - Chaired by Prof. Michiel Steyaert, Catholic University, Leuven; (3) Very High Frequency Front Ends (Thu 29 March) - Chaired by Prof. Arthur van Roermund, Eindhoven University of Technology.