Download or read book Quadrature RC Oscillators written by João Carlos Ferreira de Almeida Casaleiro and published by Springer. This book was released on 2018-10-29 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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).

Download or read book Analysis and Design of Quadrature Oscillators written by Luis B. Oliveira and published by Springer Science & Business Media. This book was released on 2008-07-08 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Download or read book Quadrature RC oscillators written by João Carlos Ferreira de Almeida Casaleiro and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: 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).

Download or read book Design of Translinear Quadrature Oscillators written by Yuan Yang and published by . This book was released on 2000 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Sinusoidal Oscillators and Waveform Generators using Modern Electronic Circuit Building Blocks written by Raj Senani and published by Springer. This book was released on 2015-11-26 with total page 637 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book serves as a single-source reference to sinusoidal oscillators and waveform generators, using classical as well as a variety of modern electronic circuit building blocks. It provides a state-of-the-art review of a large variety of sinusoidal oscillators and waveform generators and includes a catalogue of over 600 configurations of oscillators and waveform generators, describing their relevant design details and salient performance features/limitations. The authors discuss a number of interesting, open research problems and include a comprehensive collection of over 1500 references on oscillators and non-sinusoidal waveform generators/relaxation oscillators. Offers readers a single-source reference to everything connected to sinusoidal oscillators and waveform generators, using classical as well as modern electronic circuit building blocks; Provides a state-of-the-art review of a large variety of sinusoidal oscillators and waveform generators; Includes a catalog of over 600 configurations of oscillators and waveform generators, with their relevant design details and their salient performance features/limitations.

Download or read book A High Frequency Current controlled Oscillator for Integrated Circuits microform written by Erasto M. (Erasto Muganyizi) Kashoro and published by National Library of Canada. This book was released on 1982 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: A sinusoidal RC-oscillator built around a current-controlled current amplifier is presented. Three main problems associated with RC-oscillators, namely poor frequency performance, amplitude drift and a large temperature coefficient of frequency, are addressed, and ways of solving these problems are discussed. The large temperature sensitivities typical of active RC networks were reduced by eliminating the active portion of the drift. This was accomplished through the use of thermally balanced amplifiers whose operation is independent of transistor parameters. It is shown that the frequency performance of a typical Wien-oscillator is significantly improved when fast current amplifiers are used to replace commercial voltage operational amplifiers. The generation of a sinusoidal signal directly from the oscillator gave a lower total harmonic distortion (THD) than in the more popular approaches using multivibrators and shaping networks. A new method for stabilizing the amplitude of oscillation has been developed. It employs a high frequency rectifier and a comparator in a feedback loop which is connected to the RC network of the oscillator through an active current divider. The feedback loop regulates the current in the RC network and thereby stabilizes the amplitude. A linear automatic gain control (AGC) model was developed and the stability requirements for the amplitude control loop were studied. Frequency stabilization for oscillators is a very difficult task. Most communication systems requiring tight frequency stability incorporate frequency synthesizers which have a large IC count and are expensive.

Download or read book Active RC Oscillator Arrays written by Herbert Michael Aumann and published by . This book was released on 1973 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Circuit Design for RF Transceivers written by Domine Leenaerts and published by Springer Science & Business Media. This book was released on 2007-05-08 with total page 342 pages. Available in PDF, EPUB and Kindle. Book excerpt: Applicable for bookstore catalogue

Download or read book Architectures for RF Frequency Synthesizers written by Cicero S. Vaucher and published by Springer Science & Business Media. This book was released on 2006-04-18 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt: This text describes a conceptual framework for analyzing the performance of PLL frequency synthesizers, and presents optimization procedures for the different performance aspects. It contains basic information and in-depth knowledge, widely illustrated with practical design examples used in industrial products.

Download or read book Oscillators and Oscillator Systems written by Jan R. Westra and published by Springer Science & Business Media. This book was released on 2013-04-17 with total page 289 pages. Available in PDF, EPUB and Kindle. Book excerpt: In many electronic systems, such as telecommunication or measurement systems, oscillations play an essential role in the information processing. Each electronic system poses different requirements on these oscillations, depending on the type and performance level of that specific system. It is the designer's challenge to find the specifications for the desired oscillation and to implement an electronic circuit meeting these specifications. As the desired oscillations have to fulfill many requirements, the design process can become very complex. To find an optimal solution, the designer requires a design methodology that is preferably completely top-down oriented. To achieve such a methodology, it must be assured that each property of the system can be optimized independently of all other properties. Oscillators and Oscillator Systems: Classification, Analysis and Synthesis takes a systematic approach to the design of high-performance oscillators and oscillator systems. A fundamental classification of oscillators, based on their internal timing references, forms the basis of this approach. The classification enables the designer to make strategic design decisions at a high hierarchical level of the design process. Techniques, derived from the systematic approach, are supplied to the designer to enable him or her to bring the performance of the system as close as possible to the fundamental limits. Oscillators and Oscillator Systems: Classification, Analysis and Synthesis is an excellent reference for researchers and circuit designers, and may be used as a text for advanced courses on the topic.

Download or read book Foundations of Oscillator Circuit Design written by Guillermo Gonzalez and published by Artech House Publishers. This book was released on 2007 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt: Oscillators are an important component in today's RF and microwave systems, and practitioners in the field need to know how to design oscillators for stability and top performance. Offering engineers broader coverage than other oscillator design books on the market, this comprehensive resource considers the complete frequency range, from low-frequency audio oscillators to more complex oscillators found at the RF and microwave frequencies. Packed with over 1,200 equations, the book gives professionals a thorough understanding of the principles and practice of oscillator circuit design and emphasizes the use of time-saving CAD (computer aided design) simulation techniques. From the theory and characteristics of oscillators, to the design of a wide variety of oscillators (including tuned-circuit, crystal, negative-resistance, and relaxation oscillators), this unique book is a one-stop reference practitioners can turn to again and again when working on their challenging projects in this field.

Download or read book Circuits for Wireless Communications written by Banlue Srisuchinwong and published by Institute of Electrical & Electronics Engineers(IEEE). This book was released on 2001 with total page 668 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wireless communications is one of the fastest growing areas of communications technology. This book presents current and classic papers on circuits for wireless communications. Selected by three experts in the field, the text should be useful for students, engineers just beginning to work in cellular communications and experienced engineers who want a convenient and useful reference source.

Download or read book Electronic Circuit Design and Application written by Stephan J. G. Gift and published by Springer Nature. This book was released on 2021-11-27 with total page 676 pages. Available in PDF, EPUB and Kindle. Book excerpt: This textbook for core courses in Electronic Circuit Design teaches students the design and application of a broad range of analog electronic circuits in a comprehensive and clear manner. Readers will be enabled to design complete, functional circuits or systems. The authors first provide a foundation in the theory and operation of basic electronic devices, including the diode, bipolar junction transistor, field effect transistor, operational amplifier and current feedback amplifier. They then present comprehensive instruction on the design of working, realistic electronic circuits of varying levels of complexity, including power amplifiers, regulated power supplies, filters, oscillators and waveform generators. Many examples help the reader quickly become familiar with key design parameters and design methodology for each class of circuits. Each chapter starts from fundamental circuits and develops them step-by-step into a broad range of applications of real circuits and systems. Written to be accessible to students of varying backgrounds, this textbook presents the design of realistic, working analog electronic circuits for key systems; Includes worked examples of functioning circuits, throughout every chapter, with an emphasis on real applications; Includes numerous exercises at the end of each chapter; Uses simulations to demonstrate the functionality of the designed circuits; Enables readers to design important electronic circuits including amplifiers, power supplies and oscillators.

Download or read book Design Techniques in CMOS LC Quadrature Oscillators for Broadband Applications written by Mahdi Bagheri and published by . This book was released on 2018 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt: New standards are emerging every few months as wireless bands and services are proliferating across the world. End users of mobile headsets, wireless speakers, appliances controlled by internet, and many other devices want as many as possible new services and manufacturers have a hard time to keep up. Therefore, wireless radio solutions which can cover more bands and standards are in high demand. Multi-band multi mode radios by stacking up of multiple modules can be a choice to cover more bands in one system at a higher cost and larger area. Newer multi-band multi-mode radios integrate multiple radios into one chip and by reducing the packaging cost, sharing the peripheral components, and lowering the size, cover larger frequency range at lower cost. Software defined radios (SDRs) and cognitive radios (CRs) can address the increasing demand of users to have seamless connection at low service cost and support wide range of applications [24]. Ultra-wideband (UWB) radios also cover a wide spectrum supporting universal applications in different countries. The WiMedia UWB radio technology requires the frequency synthesizers to cover the 3.1 GHz to 10.6 GHz spectrum. Different communication systems take advantage of millimeter-wave phased arrays such as 60 GHz short-range communication and point-to-point communication at the E--band (71-76 and 81-86 GHz) and the W--band (75-110 GHz). All the mentioned radios need carrier frequency generators which are able to cover all the frequency bands of interest which is several GHz. Also, these frequency generators must be able to generate quadrature local oscillator signal (LO). Quadrature signals are essential in modern transceivers which can be generated in different ways. Among different ways, quadrature oscillators show better performance. The LC-QOSCs show a superior phase noise performance with excellent quadrature accuracy. To practically use CMOS LC quadrature oscillators, the randomness of the quadrature phase of the QOSCs should be fixed. The random phase sequence in LC-QOSCs results in limited tuning range which might be even zero. The series coupled QOSCs proposed in here address the quadrature phase sequence ambiguity by guaranteeing oscillation in one mode. Furthermore we have proposed a novel idea where the S-QOSC quadrature mode can be selected, and since each mode has a different frequency, in this way a wider tuning range can be achieved from the QOSC which is essential in wide tuning range frequency synthesizers and is useful in multi-band radios, SDR, CR, and UWB radios. Replacing the crystal oscillators (XTALs) which are the main reference frequency generators in transceivers has a high priority to reduce the overall cost and power consumption of different wireless systems. CMOS frequency generators mostly cannot compete with the accuracy and phase noise performance of XTALs and even with the aid of calibration cannot achieve descent frequency stability due to temperature variation as they are very sensitive to temperature. The focus of this work is on wide tuning range oscillators applicable in broadband radios. This work presents a wide tuning range series coupled quadrature S-QOSCs which is able to oscillate in desired quadrature mode of oscillation and eliminate the randomness in the quadrature sequence. By selecting the mode, the proposed S-QOSC (Chapter 4) has a very wide tuning range which is the combination of tuning range of different modes. It has also been shown (Chapter 5) that the proposed S-QOSC can be designed to show two orders of magnitude less temperature sensitivity compared to other LC oscillators and can be implemented in a system to be calibrated to achieve the required frequency accuracy of various applications. In this work an LO-phase shifting approach based on ILO at frequency range of 71 to 86 GHz will be presented.

Download or read book An RC Oscillator written by Roy John Smollett (Jr.) and published by . This book was released on 1950 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book CMOS Analog Integrated Circuits written by Tertulien Ndjountche and published by CRC Press. This book was released on 2019-12-17 with total page 1176 pages. Available in PDF, EPUB and Kindle. Book excerpt: High-speed, power-efficient analog integrated circuits can be used as standalone devices or to interface modern digital signal processors and micro-controllers in various applications, including multimedia, communication, instrumentation, and control systems. New architectures and low device geometry of complementary metaloxidesemiconductor (CMOS) technologies have accelerated the movement toward system on a chip design, which merges analog circuits with digital, and radio-frequency components.

Download or read book RF Circuit Design written by Richard C. Li and published by John Wiley & Sons. This book was released on 2008-10-22 with total page 843 pages. Available in PDF, EPUB and Kindle. Book excerpt: A Must-Read for all RF/RFIC Circuit Designers This book targets the four most difficult skills facing RF/RFIC designers today: impedance matching, RF/AC grounding, Six Sigma design, and RFIC technology. Unlike most books on the market, it presents readers with practical engineering design examples to explore how they're used to solve ever more complex problems. The content is divided into three key parts: Individual RF block circuit design Basic RF circuit design skills RF system engineering The author assumes a fundamental background in RF circuit design theory, and the goal of the book is to enable readers to master the correct methodology. The book includes treatment of special circuit topologies and introduces some useful schemes for simulation and layout. This is a must-read for RF/RFIC circuit design engineers, system designers working with communication systems, and graduates and researchers in related fields.