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This book presents a novel approach to the analysis and design of
all-digital phase-locked loops (ADPLLs), technology widely used in
wireless communication devices. The authors provide an overview of
ADPLL architectures, time-to-digital converters (TDCs) and noise
shaping. Realistic examples illustrate how to analyze and simulate
phase noise in the presence of sigma-delta modulation and
time-to-digital conversion. Readers will gain a deep understanding
of ADPLLs and the central role played by noise-shaping. A range of
ADPLL and TDC architectures are presented in unified manner.
Analytical and simulation tools are discussed in detail. Matlab
code is included that can be reused to design, simulate and analyze
the ADPLL architectures that are presented in the book.
This book presents a novel approach to the analysis and design of
all-digital phase-locked loops (ADPLLs), technology widely used in
wireless communication devices. The authors provide an overview of
ADPLL architectures, time-to-digital converters (TDCs) and noise
shaping. Realistic examples illustrate how to analyze and simulate
phase noise in the presence of sigma-delta modulation and
time-to-digital conversion. Readers will gain a deep understanding
of ADPLLs and the central role played by noise-shaping. A range of
ADPLL and TDC architectures are presented in unified manner.
Analytical and simulation tools are discussed in detail. Matlab
code is included that can be reused to design, simulate and analyze
the ADPLL architectures that are presented in the book.
Few people know what wandering spurs are; fewer still know how to
get rid of them. This book, which is written by those who raised
awareness of wandering spurs, explained how they arise, and
invented ways to get rid of them, contains valuable insights,
analytical techniques and examples that will enable the reader to
become an expert in the area. The book is aimed at circuit design
professionals who need to ensure that their designs are not
compromised by wandering spurs. In addition to insights, theory,
and analysis, it contains practical circuit solutions, the
performance of which are characterized experimentally. This book
explains-using simulation, analysis, and experimental
measurements-what wandering spurs are, how they arise, how to
characterize them and, most importantly, how to get rid of them.
The authors present not only theoretical analysis and simulation
strategies, but also provide an overview of spectral analysis
techniques for studying the phenomenon and convincing experimental
results from both commercially available and custom-designed
monolithic synthesizers. Explains what wandering spurs are and how
they differ qualitatively from the well-known fixed spurs that
plague fractional-N frequency synthesizers; Provides analytical and
simulation methods to study wandering spurs and original analysis
of the cause of this recently reported spectral phenomenon;
Presents and analyses theoretical designs based on a conventional
MASH 1-1-1 to mitigate wandering spurs; Describes measured
performance for the discussed designs, confirming their
effectiveness in mitigating wandering spurs.
This book describes several Digital Delta-Sigma Modulator (DDSM)
architectures, including multi stage noise shaping (MASH), error
feedback modulator (EFM) and single quantizer (SQ)-DDSM modulators,
with a focus on predicting and maximizing their cycle lengths. The
authors aim to demystify an important aspect of these particular
DDSM structures, namely the existence of spurs resulting from the
inherent periodicity of DDSMs with constant inputs. Simulink and
MATLAB models and code are presented in Chapters 2-5 to enable the
reader to reproduce the results in this work and to explore
further. These examples will also be helpful for first-time
designers of DDSMs.
Despite the fact that the world is inherently nonlinear, many
undergraduate students are never explicitly exposed to the concepts
of nonlinear dynamics. This book provides an introduction to the
field, illustrating the basic concepts by means of a readily
accessible electronic system -- Chua's circuit. Each idea is
illustrated using mathematics, computer simulation, and laboratory
experiments. The book also describes two novel concepts in
nonlinear dynamics: chaos control and chaos synchronization, as
well as several applications which exploit complex dynamics.
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