Delta-Sigma UHF Digital Waveform Generator - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Delta-Sigma UHF Digital Waveform Generator write by . This book was released on 2006. Delta-Sigma UHF Digital Waveform Generator available in PDF, EPUB and Kindle. The Naval Research Laboratory (NRL) has developed and built a prototype UHF Digital Waveform Generator (DWG) based on the Delta-Sigma algorithm, which allows arbitrary waveform generation. It provides predicted low phase and spurious noise. Much of the design uses field programmable gate arrays (FPGAs) for single-bit digital waveform generation. Four filter topologies were initially considered, including cascade, hybrid, parallel, and transposed. The cascade and parallel forms were eliminated because they imposed a heavy computational burden on the system. After analyzing the transposed topology, quantization error in higher-order filters led to the selection of the hybrid form of the digital filter because it performed well. A 12th order hybrid filter was selected and implemented using FPGAs. The NRL Development demonstrates that a simple-to-code single-bit Delta-Sigma DWG can cost-effectively provide the same resolution as a 16-bit or greater digital-to-analog converter (DAC) DWG. These results provide the promise of low-cost diverse waveform generation capability in future high-performance Navy radar systems.
A FPGA Based Delta-sigma Digital Waveform Generator
A FPGA Based Delta-sigma Digital Waveform Generator - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook A FPGA Based Delta-sigma Digital Waveform Generator write by Chunhui Zhang. This book was released on 2011. A FPGA Based Delta-sigma Digital Waveform Generator available in PDF, EPUB and Kindle.
Delta-Sigma Modulators
Delta-Sigma Modulators - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Delta-Sigma Modulators write by George I. Bourdopoulos. This book was released on 2003. Delta-Sigma Modulators available in PDF, EPUB and Kindle. This important book deals with the modeling and design of higher-order single-stage delta-sigma modulators. It provides an overview of the architectures, the quantizer models, the design techniques and the implementation issues encountered in the study of the delta-sigma modulators. A number of applications are discussed, with emphasis on use in the design of analog-to-digital converters and in frequency synthesis. The book is education- rather than research-oriented, containing numerical examples and unsolved problems. It is aimed at introducing the final-year undergraduate, the graduate student or the electronic engineer to this field. Contents: Analog to Digital Conversion; ou Modulators OCo Architectures; Single-Bit Single-Stage ou Modulators, Modeling and Design; Implementation of ou Modulators; Practical Limitations of ou Modulators; Stabilization and Suppression of Tones for the Higher-Order Single-Stage ou Modulators; Decimation, Interpolation and Converters; Applications. Readership: Final-year undergraduates; graduate students; electrical, electronic and systems engineers."
Oversampled Delta-Sigma Modulators
Oversampled Delta-Sigma Modulators - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Oversampled Delta-Sigma Modulators write by Mücahit Kozak. This book was released on 2007-05-08. Oversampled Delta-Sigma Modulators available in PDF, EPUB and Kindle. Oversampled Delta-Sigma Modulators: Analysis, Applications, and Novel Topologies presents theorems and their mathematical proofs for the exact analysis of the quantization noise in delta-sigma modulators. Extensive mathematical equations are included throughout the book to analyze both single-stage and multi-stage architectures. It has been proved that appropriately set initial conditions generate tone free output, provided that the modulator order is at least three. These results are applied to the design of a Fractional-N PLL frequency synthesizer to produce spurious free RF waveforms. Furthermore, the book also presents time-interleaved topologies to increase the conversion bandwidth of delta-sigma modulators. The topologies have been generalized for any interleaving number and modulator order. The book is full of design and analysis techniques and contains sufficient detail that enables readers with little background in the subject to easily follow the material in it.
Systematic Design of CMOS Switched-Current Bandpass Sigma-Delta Modulators for Digital Communication Chips
Systematic Design of CMOS Switched-Current Bandpass Sigma-Delta Modulators for Digital Communication Chips - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Systematic Design of CMOS Switched-Current Bandpass Sigma-Delta Modulators for Digital Communication Chips write by José M. de la Rosa. This book was released on 2007-05-08. Systematic Design of CMOS Switched-Current Bandpass Sigma-Delta Modulators for Digital Communication Chips available in PDF, EPUB and Kindle. This very detailed book discusses architectures, circuits and procedures for the optimum design of bandpass sigma-delta A/D interfaces for mixed-signal chips in standard CMOS technologies. It provides uniquely in-depth coverage of switched-current errors, which supports the design of high performance SI chips.
