Techniques for High Data Rate Modulation and Low Power Operation of Fractional-N Frequency Synthesizers PDF Download
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Author: Michael Henderson Perrott
Publisher:
ISBN:
Category :
Languages : en
Pages : 199
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Book Description
Author: Michael Henderson Perrott
Publisher:
ISBN:
Category :
Languages : en
Pages : 199
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Book Description
Author: Dan McMahill
Publisher: Springer Science & Business Media
ISBN: 0306475162
Category : Technology & Engineering
Languages : en
Pages : 165
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Book Description
In recent years, there has been considerable interest in highly integrated, low power, portable wireless devices. This monograph focuses on the problem of low power GFSK/GMSK modulation and presents an architectural approach for improved performance. Including several valuable tools for the practicing engineer.
Author: Kasra Ardalan
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Book Description
Frequency synthesizers find wide applications in different communication systems. The demand for higher performance and speed from one side, and lower power consumption and cost from another side, makes the synthesizer's design a challenging task. In this thesis, a very low power integrated circuit fractional-N frequency synthesizer was designed which employs a $\Delta\Sigma$ modulator in its architecture to digitally control the output frequency and also to shape the noise of the dual modulus divider. The target application for this design is clock recovery in digital communication receivers in which the timing information is obtained in digital domain (such as baud-rate timing recovery method). This information has to be applied to a digitally-controlled frequency synthesizer which generates pulses to sample the incoming data for extracting the information. The center frequency of VCO is around 315 MHz which makes the system suitable for high speed applications (622Mb/s in case of 4-PAM modulation scheme). The chip is fabricated in a CMOS 0.35$\mu$ process and consumes only 8.5 mW power using a single 3.3 V power supply.
Author: Alexander Chenakin
Publisher: Artech House
ISBN: 1596932317
Category : Technology & Engineering
Languages : en
Pages : 235
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Book Description
A frequency synthesizer is an electronic system for generating any of a range of frequencies from a single fixed oscillator. They are found in modern devices like radio receivers, mobile phones, and GPS systems. This comprehensive resource offers RF and microwave engineers a thorough overview of both well-established and recently developed frequency synthesizer design techniques. Professionals find expert guidance on all design aspects, including main architectures, key building blocks, and practical circuit implementation. Engineers learn the development process and gain a solid understanding of how to build a synthesizer from a basic diagram to the final product.Starting with a simple single-loop PLL example, the book progressively examines various alternatives -- fractional-N, DDS, frequency offset, multiloop and more OCo to achieve required performance objectives. This unique volume gathers a collection of block diagrams, clever circuits, design recipes, and other hard-to-find information that is usually treated as OC design secretsOCO. Written in a simple yet rigorous style with numerous illustrations, the book is an all-in-one reference for both beginner and experienced designers.
Author: Robert Bogdan Staszewski
Publisher: John Wiley & Sons
ISBN: 0470041943
Category : Technology & Engineering
Languages : en
Pages : 281
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Book Description
A new and innovative paradigm for RF frequency synthesis and wireless transmitter design Learn the techniques for designing and implementing an all-digital RF frequency synthesizer. In contrast to traditional RF techniques, this innovative book sets forth digitally intensive design techniques that lead the way to the development of low-cost, low-power, and highly integrated circuits for RF functions in deep submicron CMOS processes. Furthermore, the authors demonstrate how the architecture enables readers to integrate an RF front-end with the digital back-end onto a single silicon die using standard ASIC design flow. Taking a bottom-up approach that progressively builds skills and knowledge, the book begins with an introduction to basic concepts of frequency synthesis and then guides the reader through an all-digital RF frequency synthesizer design: Chapter 2 presents a digitally controlled oscillator (DCO), which is the foundation of a novel architecture, and introduces a time-domain model used for analysis and VHDL simulation Chapter 3 adds a hierarchical layer of arithmetic abstraction to the DCO that makes it easier to operate algorithmically Chapter 4 builds a phase correction mechanism around the DCO such that the system's frequency drift or wander performance matches that of the stable external frequency reference Chapter 5 presents an application of the all-digital RF synthesizer Chapter 6 describes the behavioral modeling and simulation methodology used in design The final chapter presents the implementation of a full transmitter and experimental results. The novel ideas presented here have been implemented and proven in two high-volume, commercial single-chip radios developed at Texas Instruments: Bluetooth and GSM. While the focus of the book is on RF frequency synthesizer design, the techniques can be applied to the design of other digitally assisted analog circuits as well. This book is a must-read for students and engineers who want to learn a new paradigm for RF frequency synthesis and wireless transmitter design using digitally intensive design techniques.
Author: Arthur H.M. van Roermund
Publisher: Springer Science & Business Media
ISBN: 1402075596
Category : Technology & Engineering
Languages : en
Pages : 395
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Book Description
Number 12 in the successful series of Analog Circuit Design provides valuable information and excellent overviews of analogue circuit design, CAD and RF systems. The series is an ideal reference for those involved in analogue and mixed-signal design.
Author: Nicolas Regimbal
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Book Description
This dissertation deals with frequency synthesis and more specifically with the fractional frequency divider, one of the most critical blocks in radio frequency systems. A new fractional division method is presented along with two possible embodiments. It is based on a random dithering of the phase error. The divider output spectrum is cleaned from any fractional spurious tone. The spurious tones energy is uniformly spread on the whole spectrum, without noise shaping. The proposed solution can be implemented in frequency synthesizers like Phase Locked Loops (PLL). As no noise shaping is applied, the PLL bandwidth can be optimized. In this context, the possibility of high data-rate direct modulation is studied. Finally, solutions for the optimization of the resulting system are inspected.
Author: William F. Egan
Publisher: John Wiley & Sons
ISBN: 1118171152
Category : Technology & Engineering
Languages : en
Pages : 312
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Book Description
The latest frequency synthesis techniques, including sigma-delta,Diophantine, and all-digital Sigma-delta is a frequency synthesis technique that has risen inpopularity over the past decade due to its intensely digital natureand its ability to promote miniaturization. A continuation of thepopular Frequency Synthesis by Phase Lock, Second Edition, thistimely resource provides a broad introduction to sigma-delta bypairing practical simulation results with cutting-edge research.Advanced Frequency Synthesis by Phase Lock discusses bothsigma-delta and fractional-n—the still-in-use forerunner tosigma-delta—employing Simulink® models and detailedsimulations of results to promote a deeper understanding. After a brief introduction, the book shows how spurs areproduced at the synthesizer output by the basic process anddifferent methods for overcoming them. It investigates how variousdefects in sigma-delta synthesis contribute to spurs or noise inthe synthesized signal. Synthesizer configurations are analyzed,and it is revealed how to trade off the various noise sources bychoosing loop parameters. Other sigma-delta synthesis architecturesare then reviewed. The Simulink simulation models that provided data for thepreceding discussions are described, providing guidance in makinguse of such models for further exploration. Next, another methodfor achieving wide loop bandwidth simultaneously with fineresolution—the Diophantine Frequency Synthesizer—isintroduced. Operation at extreme bandwidths is also covered,further describing the analysis of synthesizers that push theirbandwidths close to the sampling-frequency limit. Lastly, the bookreviews a newly important technology that is poised to becomewidely used in high-production consumerelectronics—all-digital frequency synthesis. Detailed appendices provide in-depth discussion on variousstages of development, and many related resources are available fordownload, including Simulink models, MATLAB® scripts,spreadsheets, and executable programs. All these features make thisauthoritative reference ideal for electrical engineers who want toachieve an understanding of sigma-delta frequency synthesis and anawareness of the latest developments in the field.
Author: Bar-Giora Goldberg
Publisher: Newnes
ISBN: 9781878707475
Category : Mathematics
Languages : en
Pages : 356
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Book Description
Preface; Introduction to frequency synthesis; Frequency synthesizer system analysis; Measurement techniques; DDS general architecture; Phase-locked loop synthesizers; Accumulators; Lockup table and sine rom compression; Digital to analog converters; Synthesizers in use and reference generators; Index.
Author: Jouko Vankka
Publisher: Springer Science & Business Media
ISBN: 9781402031946
Category : Technology & Engineering
Languages : en
Pages : 394
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Book Description
The approach adopted in Digital Synthesizers and Transmitters for Software Radio will provide an understanding of key areas in the field of digital synthesizers and transmitters. It is easy to include different digital techniques in the digital synthesizers and transmitters by using digital signal processing methods, because the signal is in digital form. By programming the digital synthesizers and transmitters, adaptive channel bandwidths, modulation formats, frequency hopping and data rates are easily achieved. Techniques such as digital predistortion for power amplifier linearization, digital compensation methods for analog I/Q modulator nonlinearities and digital power control and ramping are presented in this book. The flexibility of the digital synthesizers and transmitters makes them ideal as signal generators for software radio. Software radios represent a major change in the design paradigm for radios in which a large portion of the functionality is implemented through programmable signal processing devices, giving the radio the ability to change its operating parameters to accommodate new features and capabilities. A software radio approach reduces the content of radio frequency (RF) and other analog components of traditional radios and emphasizes digital signal processing to enhance overall transmitter flexibility. Software radios are emerging in commercial and military infrastructure.
