Download or read book Comparative Analysis of Various Cmos Based VCO written by Neeraj Gupta and published by . This book was released on 2012-10-20 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Microelectronics Electromagnetics and Telecommunications written by Ganapati Panda and published by Springer. This book was released on 2018-11-02 with total page 802 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book discusses the latest developments and outlines future trends in the fields of microelectronics, electromagnetics and telecommunication. It contains original research works presented at the International Conference on Microelectronics, Electromagnetics and Telecommunication (ICMEET 2018), organised by GVP College of Engineering (A), Andhra Pradesh, India. The respective papers were written by scientists, research scholars and practitioners from leading universities, engineering colleges and R&D institutes from all over the world, and share the latest breakthroughs in and promising solutions to the most important issues facing today’s society.
Download or read book A Comparative Study of Low Phase Noise Voltage controlled Oscillators VCOs in CMOS Technology written by Hu Jing Yao and published by . This book was released on 2006 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Voltage controlled oscillators (VCOs) are key components in frequency synthesizers for Radio Frequency (RF) wireless communications. The design of monolithic VCOs with standard CMOS processes has been the object of several recent research projects. The common goal of these attempts has been to investigate the possibility of meeting the very demanding VCO phase noise specifications without making use of bipolar processes or external components. Two categories of VCOs are studied in this thesis, one involving an inductor, and the other is inductor free, which is a ring oscillator. The study of the phase noise performance of complementary LC VCO shows that most of the phase noises come from the tail current. A modification has been made based on this topology, where the tail transistor is removed. However this brings another problem: higher power consumption. To overcome this problem, sub-threshold techniques have been used leading to sub-threshold LC VCO. A Ring oscillator is designed at the end because of its wide tuning range and ease of implementation. Schematic simulations, layout and post-layout simulations are accomplished using TSMC 0.18 um CMOS technology. The performances of the three types of VCOs are compared regarding the oscillating frequency, phase noise and tuning range. All of these can be used in the Bluetooth applications. In addition, the figure of merit (FOM) of the designed VCOs is compared with work by other researchers.
Download or read book Design of High Performance CMOS Voltage Controlled Oscillators written by Liang Dai and published by Springer Science & Business Media. This book was released on 2003 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt: Design of High-Performance CMOS Voltage-Controlled Oscillators presents a phase noise modeling framework for CMOS ring oscillators. The analysis considers both linear and nonlinear operation. It indicates that fast rail-to-rail switching has to be achieved to minimize phase noise. Additionally, in conventional design the flicker noise in the bias circuit can potentially dominate the phase noise at low offset frequencies. Therefore, for narrow bandwidth PLLs, noise up conversion for the bias circuits should be minimized. We define the effective Q factor (Qeff) for ring oscillators and predict its increase for CMOS processes with smaller feature sizes. Our phase noise analysis is validated via simulation and measurement results. The digital switching noise coupled through the power supply and substrate is usually the dominant source of clock jitter. Improving the supply and substrate noise immunity of a PLL is a challenging job in hostile environments such as a microprocessor chip where millions of digital gates are present.
Download or read book A Comparative Study on the Design of 2 4 GHz VCOs in a 0 13 Micron CMOS Process written by Han-Ting Hank Lii and published by . This book was released on 2007 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Transformer Based Design Techniques for Oscillators and Frequency Dividers written by Howard Cam Luong and published by Springer. This book was released on 2015-10-07 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides in-depth coverage of transformer-based design techniques that enable CMOS oscillators and frequency dividers to achieve state-of-the-art performance. Design, optimization, and measured performance of oscillators and frequency dividers for different applications are discussed in detail, focusing on not only ultra-low supply voltage but also ultra-wide frequency tuning range and locking range. This book will be an invaluable reference for anyone working or interested in CMOS radio-frequency or mm-Wave integrated circuits and systems.
Download or read book Design and Analysis of Analog Cmos Voltage Control Oscillator vco written by Siew Ching Yip and published by . This book was released on 2012 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nanotechnology written by Shilpi Birla and published by CRC Press. This book was released on 2022-03-02 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt: This reference text discusses recent advances in the field of nanotechnology with applications in the fields of electronics sector, agriculture, health services, smart cities, food industry, and energy sector in a comprehensive manner. The text begins by discussing important concepts including bio nanotechnology, nano electronics, nano devices, nano medicine, and nano memories. It then comprehensively covers applications of nanotechnology in different areas including healthcare, energy sector, environment, security and defense, agriculture sector, food industry, automotive sector, smart cities, and Internet of Things (IoT). Aimed at senior undergraduate, graduate students and professionals in the fields of electrical engineering, electronics engineering, nanoscience and nanotechnology, this text: Discusses nano image sensors useful for imaging in medical and for security applications. Covers advances in the field of nanotechnology with their applications. It covers important concepts including neuro simulators, nano medicine, and nano materials. Covers applications of nanotechnology in diverse fields including health sector, agriculture, energy sector, and electronics.
Download or read book Proceedings of the Multi Conference 2011 written by Himanshu B. Soni and published by Universal-Publishers. This book was released on 2011-06-06 with total page 1074 pages. Available in PDF, EPUB and Kindle. Book excerpt: The International Conference on Signals, Systems and Automation (ICSSA 2011) aims to spread awareness in the research and academic community regarding cutting-edge technological advancements revolutionizing the world. The main emphasis of this conference is on dissemination of information, experience, and research results on the current topics of interest through in-depth discussions and participation of researchers from all over the world. The objective is to provide a platform to scientists, research scholars, and industrialists for interacting and exchanging ideas in a number of research areas. This will facilitate communication among researchers in different fields of Electronics and Communication Engineering. The International Conference on Intelligent System and Data Processing (ICISD 2011) is organized to address various issues that will foster the creation of intelligent solutions in the future. The primary goal of the conference is to bring together worldwide leading researchers, developers, practitioners, and educators interested in advancing the state of the art in computational intelligence and data processing for exchanging knowledge that encompasses a broad range of disciplines among various distinct communities. Another goal is to promote scientific information interchange between researchers, developers, engineers, students, and practitioners working in India and abroad.
Download or read book Proceedings of the Midwest Symposium on Circuits and Systems written by and published by . This book was released on 2004 with total page 760 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book CMOS PLL Synthesizers Analysis and Design written by Keliu Shu and published by Springer Science & Business Media. This book was released on 2006-01-20 with total page 227 pages. Available in PDF, EPUB and Kindle. Book excerpt: Thanks to the advance of semiconductor and communication technology, the wireless communication market has been booming in the last two decades. It evolved from simple pagers to emerging third-generation (3G) cellular phones. In the meanwhile, broadband communication market has also gained a rapid growth. As the market always demands hi- performance and low-cost products, circuit designers are seeking hi- integration communication devices in cheap CMOS technology. The phase-locked loop frequency synthesizer is a critical component in communication devices. It works as a local oscillator for frequency translation and channel selection in wireless transceivers and broadband cable tuners. It also plays an important role as the clock synthesizer for data converters in the analog-and-digital signal interface. This book covers the design and analysis of PLL synthesizers. It includes both fundamentals and a review of the state-of-the-art techniques. The transient analysis of the third-order charge-pump PLL reveals its locking behavior accurately. The behavioral-level simulation of PLL further clarifies its stability limit. Design examples are given to clearly illustrate the design procedure of PLL synthesizers. A complete derivation of reference spurs in the charge-pump PLL is also presented in this book. The in-depth investigation of the digital CA modulator for fractional-N synthesizers provides insightful design guidelines for this important block.
Download or read book VCO Based Quantizers Using Frequency to Digital and Time to Digital Converters written by Samantha Yoder and published by Springer Science & Business Media. This book was released on 2011-08-28 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book introduces the concept of voltage-controlled-oscillator (VCO)-based analog-to-digital converters (ADCs). Detailed explanation is given of this promising new class of high resolution and low power ADCs, which use time quantization as opposed to traditional analog-based (i.e. voltage) ADCs.
Download or read book Time encoding VCO ADCs for Integrated Systems on Chip written by Georges Gielen and published by Springer Nature. This book was released on 2022-03-01 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book demonstrates why highly-digital CMOS time-encoding analog-to-digital converters incorporating voltage-controlled oscillators (VCOs) and time-to-digital converters (TDCs) are a good alternative to traditional switched-capacitor S-D modulators for power-efficient sensor, biomedical and communications applications. The authors describe the theoretical foundations and design methodology of such time-based ADCs from the basics to the latest developments. While most analog designers might notice some resemblance to PLL design, the book clearly highlights the differences to standard PLL circuit design and illustrates the design methodology with practical circuit design examples. Describes in detail the design methodology for CMOS time-encoding analog-to-digital converters that can be integrated along with digital logic in a nanometer System on Chip; Assists analog designers with the necessary change in design paradigm, highlighting differences between designing time-based ADCs and traditional analog circuits like switched-capacitor converters and PLLs; Uses a highly-visual, tutorial approach to the topic, including many practical examples of techniques introduced.
Download or read book The Study of CMOS Based VCO with Active Inductor and Its Design Methodology written by Sy-Min Chueng and published by . This book was released on 2012 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt: Active Inductors are useful in reducing the large chip area typically consumed by spiral inductors, as well as providing larger inductance values and higher quality factors that otherwise cannot be achieved by spiral inductors. Integrated inductors find application in many radio frequency (RF) front end integrated circuits, including impedance matching, filtering, biasing and in oscillator circuits. Nonetheless, because of the interdependent relationship of the self-resonant frequency and quality factor it is often difficult to meet desired circuit requirements. Additionally, active devices pose problems of higher power consumption, noise figure and potential instability. This thesis begins with the study of active inductors, the Wu active inductor in particular, and considers tuning methods based on the Wu active inductor topology. Starting with the small-signal model, the emulated inductance and quality factor expressions are derived. Next, the operation of active inductors under large-signal is closely examined. Comparisons between a passive and an active VCO are made. The active inductor based voltage-controlled oscillator (Active VCO) is studied extensively, and the methods of improving the performance under large signal-behavior are discussed. Then a design procedure based on gm/ID methodology is proposed. A Matlab script that can be applied to gyrator-C based active inductors is developed to determine the sizing of the transistors for a desired inductance and resonant frequency. Cadence Virtuoso is used for simulations, and extraction based on an IBM 8RF technology file. Finally, a low power active VCO is designed, simulated and laid out.
Download or read book CMOS PLLs and VCOs for 4G Wireless written by Adem Aktas and published by Springer Science & Business Media. This book was released on 2004-06-18 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt: CMOS PLLs and VCOs for 4G Wireless is the first book devoted to the subject of CMOS PLL and VCO design for future broadband 4th generation wireless devices. These devices will be handheld-centric, requiring very low power consumption and small footprint. They will be able to work across multiple bands and multiple standards covering WWAN (GSM,WCDMA) ,WLAN(802.11 a/b/g) and WPAN(Bluetooth) with different modulations, channel bandwidths , phase noise requirements ,etc. As such, this book discusses design, modeling and optimization techniques for low power fully integrated broadband PLLs and VCOs in deep submicron CMOS. First, the PLL and VCO performances are studied in the context of the chosen multi-band multi-standard, radio architecture and the adopted frequency plan. Next a thorough study of the design requirements for broadband PLL/VCO design is conducted together with modeling techniques for noise sources in a PLL and VCO focusing on optimization of integrated phase noise for multi-carrier OFDM 64-QAM type applications. Design examples for multi-standard 802.111a/b/g as well as for GSM/WCDMA are fully described and experimental results from 0.18 micron CMOS test chips have demonstrated the validity of the proposed design and optimization techniques. Equally important the work describes techniques for robust high volume production of RF radios in general and for integrated PLL/VCO design in particular including issues such as supply sensitivity, ground bounce and calibration mechanisms. CMOS PLLS and VCOs for 4G Wireless will be of interest to graduate students in electrical and computer engineering, design managers and RFIC designers in wireless semiconductor companies.
Download or read book Intelligent Circuits and Systems for SDG 3 Good Health and well being written by Bhaveshkumar Choithram Dharman and published by CRC Press. This book was released on 2024-08-05 with total page 819 pages. Available in PDF, EPUB and Kindle. Book excerpt: ICICS is a series of conferences initiated by School of Electronics and Electrical Engineering at Lovely Professional University. Looking at the response to the conference, the bi-annual conference now onwards will be annual. The 5th International Conference on Intelligent Circuits and Systems (ICICS 2023) will be focusing on intelligent circuits and systems for achieving the targets in Sustainable Development Goal (SDG) 3, identified as ‘Good Health and Wellbeing’ by United Nations (Refs: https://sdgs.un.org/goals/goal3, https://sdg-tracker.org/).
Download or read book Design of CMOS Millimeter Wave and Terahertz Integrated Circuits with Metamaterials written by Hao Yu and published by CRC Press. This book was released on 2015-10-19 with total page 389 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book shows that with the use of metamaterials, one can have coherent THz signal generation, amplification, transmission, and detection for phase-arrayed CMOS transistors with significantly improved performance. Offering detailed coverage from device to system, the book describes the design and application of metamaterials in actual CMOS integrated circuits, includes real circuit examples and chip demonstrations with measurement results, and also evaluates system performance after CMOS-based system-on-chip integration. The book reflects the latest research progress and provides a state-of-the-art reference on CMOS-based metamaterial devices and mm-wave and THz systems.
