Igor M. Filanovsky's Books

Analysis and Design of Quadrature Oscillators

By: Luis B. Oliveira,Jorge R. Fernandes,Igor M. Filanovsky,Chris J. M. Verhoeven,Manuel M. Silva

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Analysis and Design of Quadrature Oscillators

By: Luis B. Oliveira,Jorge R. Fernandes,Igor M. Filanovsky,Chris J. M. Verhoeven,Manuel M. Silva

Modern RF receivers and transmitters require quadrature oscillators with accurate quadrature and low phase-noise. Existing literature is dedicated mainly to single oscillators, and is strongly biased towards LC oscillators. This book is devoted to quadrature oscillatorsand presents adetailed comparative study ofLC and RCosc- lators, both at architectural and at circuit levels. It is shown that in cross-coupled RC oscillators both the quadrature error and phase-noise are reduced, whereas in LC - cillators the coupling decreases the quadrature error, but increases the phase-noise. Thus, quadrature RC oscillators can be a practical alternative to LC oscillators, - pecially when area and cost are to be minimized. The main topics of the book are: cross-coupled LC quasi-sinusoidal oscillators, cross-coupled RC relaxation oscillators, a quadrature RC oscillator-mixer, and t- integrator oscillators. The effect of mismatches on the phase-error and the pha- noise are thoroughly investigated. The book includes many experimental results, obtained from different integrated circuit prototypes, in the GHz range. A structured design approach is followed: a technology independent study, with ideal blocks, is performed initially, and then the circuit level design is addressed. This book can be used in advanced courses on RF circuit design. In addition to post-graduate students and lecturers, this book will be of interest to design engineers and researchers in this area.

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Page Count

162

Publisher

Springer Science & Business Media

Published Date

ISBN 10

1402085168

ISBN 13

9781402085161

Operational Amplifier Speed and Accuracy Improvement

Analog Circuit Design with Structural Methodology

By: Vadim V. Ivanov,Igor M. Filanovsky

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Operational Amplifier Speed and Accuracy Improvement

Analog Circuit Design with Structural Methodology

By: Vadim V. Ivanov,Igor M. Filanovsky

Operational Amplifier Speed and Accuracy Improvement proposes a new methodology for the design of analog integrated circuits. The usefulness of this methodology is demonstrated through the design of an operational amplifier. This methodology consists of the following iterative steps: description of the circuit functionality at a high level of abstraction using signal flow graphs; equivalent transformations and modifications of the graph to the form where all important parameters are controlled by dedicated feedback loops; and implementation of the structure using a library of elementary cells. Operational Amplifier Speed and Accuracy Improvement shows how to choose structures and design circuits which improve an operational amplifier's important parameters such as speed to power ratio, open loop gain, common-mode voltage rejection ratio, and power supply rejection ratio. The same approach is used to design clamps and limiting circuits which improve the performance of the amplifier outside of its linear operating region, such as slew rate enhancement, output short circuit current limitation, and input overload recovery.

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Page Count

204

Publisher

Springer Science & Business Media

Published Date

ISBN 10

1402025173

ISBN 13

9781402025174

Quadrature RC−Oscillators

The van der Pol Approach

By: João Carlos Ferreira de Almeida Casaleiro,Luís Augusto Bica Gomes Oliveira,Igor M. Filanovsky

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Quadrature RC−Oscillators

The van der Pol Approach

By: João Carlos Ferreira de Almeida Casaleiro,Luís Augusto Bica Gomes Oliveira,Igor M. Filanovsky

This book presents a tutorial review of van der Pol model, a universal oscillator model for the analysis of modern RC−oscillators in weak and strong nonlinear regimes. A detailed analysis of the injection locking in van der Pol oscillators is also presented. The relation between the van der Pol parameters and several circuit implementations in CMOS nanotechnology is given, showing that this theory is very useful in the optimization of oscillator key parameters, such as: frequency, amplitude and phase relationship. The authors discuss three different examples: active coupling RC−oscillators, capacitive coupling RC−oscillators, and two-integrator oscillator working in the sinusoidal regime. · Provides a detailed tutorial on the van der Pol oscillator model, which can be the basis for the analysis of modern RC−oscillators in weak and strong nonlinear regimes; · Demonstrations the relationship between the van der Pol parameters and several circuit implementations in CMOS nanotechnology, showing that this theory is a powerful tool in the optimization of key oscillator parameters; · Provides three circuit prototypes implemented in modern CMOS nanotechnology in the GHz range, with applications in low area, low power, low cost, wireless sensor network (WSN) applications (e.g. IoT, BLE).

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Page Count

166

Publisher

Springer

Published Date

ISBN 10

3030007405

ISBN 13

9783030007409

Book's by Igor M. Filanovsky

Analysis and Design of Quadrature Oscillators

Analysis and Design of Quadrature Oscillators

Operational Amplifier Speed and Accuracy Improvement

Operational Amplifier Speed and Accuracy Improvement

Quadrature RC−Oscillators

Quadrature RC−Oscillators

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