Download or read book Design Techniques for High speed Low power Wireline Receivers written by Arash Zargaran Yazd and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book New Low Power Techniques for High Speed Wireline Receivers written by No Name Given Atharav and published by . This book was released on 2020 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt: With the rapidly increasing Internet traffic and storage volume, the aggregate I/O bandwidth requirements in wireline systems have been climbing at a rate of approximately 2-3 times every two years. Thus, the power consumption of wireline transceivers has become increasingly more critical as higher data rates and a larger number of lanes per chip are sought. This issue is further intensified by the trade-offs between the channel loss and the power dissipation, especially in the receive path. While PAM4 signaling is attractive for lossier channels, it has mostly dictated receiver designs incorporating analog-to-digital converters (ADCs) with high power numbers. Non-return-to-zero (NRZ) receiver, on the other hand, can be realized in the analog domain, potentially consuming less power, but they must deal with a greater channel loss. This research introduces a 56-Gb/s NRZ receiver that draws 50 mW while exhibiting bit error rate (BER) of less than BER 10^(-12) for a channel loss of 25 dB at 28 GHz and 13.5 dB at 14 GHz. Such a receiver can compete with PAM4 counterparts and/or serve as part of 112-Gb/s systems that must also support 56-Gb/s NRZ reception. This work demonstrates a threefold improvement in the power efficiency.
Download or read book Low Power Techniques for CMOS Wireline Receivers written by Abishek Manian and published by . This book was released on 2016 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt: With the ever-increasing need for high throughput from chip-to-chip I/Os, wireline transceivers are being pushed to operate at higher speeds. With the increase in data rates, the power consumption of broadband receivers has become critical in multi-lane applications like the Gigabit Ethernet. It is therefore desirable to minimize the power drawn by all of the building blocks. This work introduces a 40-Gb/s CMOS wireline receiver that advances the art by achieving a tenfold reduction in power and an efficiency of 0.35 mW/Gb/s. An innovative aspect of the proposed NRZ receiver is our "minimalist" approach, which recognizes that every additional stage in the data or clock path consumes more power and limits the bandwidth. The minimalist mentality avoids multiple stages in the front-end continuous-time linear equalizer (CTLE), quadrature oscillators in the clock and data recovery (CDR) circuit, clock or data buffers, or phase interpolation. Moreover, building blocks are shared among different functions so as to reduce the number of current paths between VDD and ground. Using charge-steering techniques extensively, the receiver contains only a few static bias currents adding up to about 6 mA. The minimalist approach also leads to a small footprint, about 110 um x 175 um, for the entire receiver, making it possible to design a multi-lane system in a small area and with short interconnects. This receiver incorporates a one-stage CTLE with 5.5-dB boost, a one-tap discrete-time linear equalizer (DTLE) with 5.4-dB boost, a half-rate CDR circuit, a two-tap half-rate/quarter-rate decision-feedback equalizer, a 1:4 deserializer, and two new latch topologies. Since in recent designs, the CTLE draws significant power, this work introduces the DTLE as an efficient means of creating a high-frequency boost with only 0.3 mW. Fabricated in 45-nm CMOS technology, the receiver achieves a BER
Download or read book Design of High speed Communication Circuits written by Ramesh Harjani and published by World Scientific. This book was released on 2006 with total page 233 pages. Available in PDF, EPUB and Kindle. Book excerpt: MOS technology has rapidly become the de facto standard for mixed-signal integrated circuit design due to the high levels of integration possible as device geometries shrink to nanometer scales. The reduction in feature size means that the number of transistor and clock speeds have increased significantly. In fact, current day microprocessors contain hundreds of millions of transistors operating at multiple gigahertz. Furthermore, this reduction in feature size also has a significant impact on mixed-signal circuits. Due to the higher levels of integration, the majority of ASICs possesses some analog components. It has now become nearly mandatory to integrate both analog and digital circuits on the same substrate due to cost and power constraints. This book presents some of the newer problems and opportunities offered by the small device geometries and the high levels of integration that is now possible. The aim of this book is to summarize some of the most critical aspects of high-speed analog/RF communications circuits. Attention is focused on the impact of scaling, substrate noise, data converters, RF and wireless communication circuits and wireline communication circuits, including high-speed I/O. Contents: Achieving Analog Accuracy in Nanometer CMOS (M P Flynn et al.); Self-Induced Noise in Integrated Circuits (R Gharpurey & S Naraghi); High-Speed Oversampling Analog-to-Digital Converters (A Gharbiya et al.); Designing LC VCOs Using Capacitive Degeneration Techniques (B Jung & R Harjani); Fully Integrated Frequency Synthesizers: A Tutorial (S T Moon et al.); Recent Advances and Design Trends in CMOS Radio Frequency Integrated Circuits (D J Allstot et al.); Equalizers for High-Speed Serial Links (P K Hanumolu et al.); Low-Power, Parallel Interface with Continuous-Time Adaptive Passive Equalizer and Crosstalk Cancellation (C P Yue et al.). Readership: Technologists, scientists, and engineers in the field of high-speed communication circuits. It can also be used as a textbook for graduate and advanced undergraduate courses.
Download or read book CMOS Continuous Time Adaptive Equalizers for High Speed Serial Links written by Cecilia Gimeno Gasca and published by Springer. This book was released on 2014-09-22 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book introduces readers to the design of adaptive equalization solutions integrated in standard CMOS technology for high-speed serial links. Since continuous-time equalizers offer various advantages as an alternative to discrete-time equalizers at multi-gigabit rates, this book provides a detailed description of continuous-time adaptive equalizers design - both at transistor and system levels-, their main characteristics and performances. The authors begin with a complete review and analysis of the state of the art of equalizers for wireline applications, describing why they are necessary, their types, and their main applications. Next, theoretical fundamentals of continuous-time adaptive equalizers are explored. Then, new structures are proposed to implement the different building blocks of the adaptive equalizer: line equalizer, loop-filters, power comparator, etc. The authors demonstrate the design of a complete low-power, low-voltage, high-speed, continuous-time adaptive equalizer. Finally, a cost-effective CMOS receiver which includes the proposed continuous-time adaptive equalizer is designed for 1.25 Gb/s optical communications through 50-m length, 1-mm diameter plastic optical fiber (POF).
Download or read book Analog Circuit Design for Communication SOC written by Steve Hung-Lung Tu and published by Bentham Science Publishers. This book was released on 2012 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt: This e-book provides several state-of-the-art analog circuit design techniques. It presents both empirical and theoretical materials for system-on-a-chip (SOC) circuit design. Fundamental communication concepts are used to explain a variety of topics including data conversion (ADC, DAC, S-? oversampling data converters), clock data recovery, phase-locked loops for system timing synthesis, supply voltage regulation, power amplifier design, and mixer design. This is an excellent reference book for both circuit designers and researchers who are interested in the field of design of analog communic.
Download or read book Design Techniques for Low power Electrical and Optical Serial Link Receivers written by Rui Bai and published by . This book was released on 2014 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt: As computation power continues to grow, the demand for data transfer bandwidth is also rising. This is reflected in the increasing data-rate of high-speed links. However, the increase in data-rate is sustainable only if the I/O energy efficiency improves as well. This dissertation explores several techniques to enable high-speed links with low power consumption. First, a serial link receiver with scalable supply voltage for different data-rates for optimum energy efficiency is presented. Low-voltage operation is proven to be an effective way to reduce power consumption, but it has not been widely adopted in high-speed link design due to associated design challenges. The proposed receiver uses an injection-locked ring oscillator (ILRO) for low-power clock recovery and deskewing with wide jitter-tracking bandwidth. Optical link has become increasingly attractive due to the potential to deliver high aggregated bandwidth over longer distance compared to electrical links. The next design applies the architecture presented previously to an optical receiver in a wavelength-division modulated (WDM) link. Per-channel adaptation is built into the front-end transimpedance amplifier (TIA), which usually accounts for the highest power consumption, to enable energy optimization in the presence of prevalent variation. Built-in monitoring and controlling circuits facilitates automatic adaptation of the link. Lastly, a low-power decision-feedback equalizer (DFE) using charge-based latch is presented. Designing an equalizer for low-voltage links can be particularly challenging because it usually has the highest bandwidth among all components. The proposed DFE with charge-based latch retains the low power consumption of a dynamic latch while achieving comparable speed of power-hungry current-mode logic (CML) circuits.
Download or read book VLSI SoC Design Trends written by Andrea Calimera and published by Springer Nature. This book was released on 2021-07-14 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book contains extended and revised versions of the best papers presented at the 28th IFIP WG 10.5/IEEE International Conference on Very Large Scale Integration, VLSI-SoC 2020, held in Salt Lake City, UT, USA, in October 2020.* The 16 full papers included in this volume were carefully reviewed and selected from the 38 papers (out of 74 submissions) presented at the conference. The papers discuss the latest academic and industrial results and developments as well as future trends in the field of System-on-Chip (SoC) design, considering the challenges of nano-scale, state-of-the-art and emerging manufacturing technologies. In particular they address cutting-edge research fields like low-power design of RF, analog and mixed-signal circuits, EDA tools for the synthesis and verification of heterogenous SoCs, accelerators for cryptography and deep learning and on-chip Interconnection system, reliability and testing, and integration of 3D-ICs. *The conference was held virtually.
Download or read book Adaptive Receivers for High speed Wireline Links written by Dustin Dunwell and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book High Frequency Integrated Circuits written by Sorin Voinigescu and published by Cambridge University Press. This book was released on 2013-02-28 with total page 921 pages. Available in PDF, EPUB and Kindle. Book excerpt: A transistor-level, design-intensive overview of high speed and high frequency monolithic integrated circuits for wireless and broadband systems from 2 GHz to 200 GHz, this comprehensive text covers high-speed, RF, mm-wave and optical fiber circuits using nanoscale CMOS, SiGe BiCMOS and III-V technologies. Step-by-step design methodologies, end-of-chapter problems and practical simulation and design projects are provided, making this an ideal resource for senior undergraduate and graduate courses in circuit design. With an emphasis on device-circuit topology interaction and optimization, it gives circuit designers and students alike an in-depth understanding of device structures and process limitations affecting circuit performance.
Download or read book High speed NRZ PAM4 Wireline Receiver System on a chip Design written by Guang Zhu and published by . This book was released on 2018 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Low power Multi Gb s Wireline Communication written by Masum Hossain and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Analog Integrated Circuit Design Techniques for High speed Signal Processing in Communications Systems written by David Hernandez Garduno and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This work presents design techniques for the implementation of high-speed analog integrated circuits for wireless and wireline communications systems. Limitations commonly found in high-speed switched-capacitor (SC) circuits used for intermediate frequency (IF) filters in wireless receivers are explored. A model to analyze the aliasing effects due to periodical non-uniform individual sampling, a technique used in high-Q high-speed SC filters, is presented along with practical expressions that estimate the power of the generated alias components. The results are verified through circuit simulation of a 10.7MHz bandpass SC filter in TSMC 0.35mu-m CMOS technology. Implications on the use of this technique on the design of IF filters are discussed. To improve the speed at which SC networks can operate, a continuous-time common-mode feedback (CMFB) with reduced loading capacitance is proposed. This increases the achievable gain-bandwidth product (GBW) of fully-differential amplifiers. The performance of the CMFB is demonstrated in the implementation of a second-order 10.7MHz bandpass SC filter and compared with that of an identical filter using the conventional switched-capacitor CMFB (SC-CMFB). The filter using the continuous-time CMFB reduces the error due to finite GBW and slew rate to less than 1% for clock frequencies up to 72MHz while providing a dynamic range of 59dB and a PSRR-> 22dB. The design of high-speed transversal equalizers for wireline transceivers requires the implementation of broadband delay lines. A delay line based on a third-order linear-phase filter is presented for the implementation of a fractionally-spaced 1Gb/s transversal equalizer. Two topologies for a broadband summing node which enable the placement of the parasitic poles at the output of the transversal equalizer beyond 650MHz are presented. Using these cells, a 5-tap 1Gb/s equalizer was implemented in TSMC 0.35mu-m CMOS technology. The results show a programmable frequency response able to compensate up to 25dB loss at 500MHz. The eye-pattern diagrams at 1Gb/s demonstrate the equalization of 15 meters and 23 meters of CAT5e twisted-pair cable, with a vertical eye-opening improvement from 0% (before the equalizer) to 58% (after the equalizer) in the second case. The equalizer consumes 96mW and an area of 630mu-m x 490mu-m.
Download or read book High Speed Devices and Circuits with THz Applications written by Jung Han Choi and published by CRC Press. This book was released on 2014-07-22 with total page 266 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presenting the cutting-edge results of new device developments and circuit implementations, High-Speed Devices and Circuits with THz Applications covers the recent advancements of nano devices for terahertz (THz) applications and the latest high-speed data rate connectivity technologies from system design to integrated circuit (IC) design, providing relevant standard activities and technical specifications. Featuring the contributions of leading experts from industry and academia, this pivotal work: Discusses THz sensing and imaging devices based on nano devices and materials Describes silicon on insulator (SOI) multigate nanowire field-effect transistors (FETs) Explains the theory underpinning nanoscale nanowire metal-oxide-semiconductor field-effect transistors (MOSFETs), simulation methods, and their results Explores the physics of the silicon-germanium (SiGe) heterojunction bipolar transistor (HBT), as well as commercially available SiGe HBT devices and their applications Details aspects of THz IC design using standard silicon (Si) complementary metal-oxide-semiconductor (CMOS) devices, including experimental setups for measurements, detection methods, and more An essential text for the future of high-frequency engineering, High-Speed Devices and Circuits with THz Applications offers valuable insight into emerging technologies and product possibilities that are attractive in terms of mass production and compatibility with current manufacturing facilities.
Download or read book THz and Sub THz CMOS Electronics for High Speed Telecommunication written by Carl D’heer and published by Springer Nature. This book was released on with total page 417 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Design of Power Efficient Highly Digital Analog to Digital Converters for Next Generation Wireless Communication Systems written by Xinpeng Xing and published by Springer. This book was released on 2017-10-04 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book discusses both architecture- and circuit-level design aspects of voltage-controlled-oscillator (VCO)-based analog-to-digital converters (ADCs), especially focusing on mitigation of VCO nonlinearity and the improvement of power efficiency. It shows readers how to develop power-efficient complementary-metal-oxide-semiconductor (CMOS) ADCs for applications such as LTE, 802.11n, and VDSL2+. The material covered can also be applied to other specifications and technologies. Design of Power-Efficient Highly Digital Analog-to-Digital Converters for Next-Generation Wireless Communication Systems begins with a general introduction to the applications of an ADC in communications systems and the basic concepts of VCO-based ADCs. The text addresses a wide range of converter architectures including open- and closed-loop technologies. Special attention is paid to the replacement of power-hungry analog blocks with VCO-based circuits and to the mitigation of VCO nonline arity. Various MATLAB®/Simulink® models are provided for important circuit nonidealities, allowing designers and researchers to determine the required specifications for the different building blocks that form the systematic integrated-circuit design procedure. Five different VCO-based ADC design examples are presented, introducing innovations at both architecture and circuit levels. Of these designs, the best power efficiency of a high-bandwidth oversampling ADC is achieved in a 40 nm CMOS demonstration. This book is essential reading material for engineers and researchers working on low-power-analog and mixed-signal design and may be used by instructors teaching advanced courses on the subject. It provides a clear overview and comparison of VCO-based ADC architectures and gives the reader insight into the most important circuit imperfections.
Download or read book MicroCMOS Design written by Bang-Sup Song and published by CRC Press. This book was released on 2017-12-19 with total page 436 pages. Available in PDF, EPUB and Kindle. Book excerpt: MicroCMOS Design covers key analog design methodologies with an emphasis on analog systems that can be integrated into systems-on-chip (SoCs). Starting at the transistor level, this book introduces basic concepts in the design of system-level complementary metal-oxide semiconductors (CMOS). It uses practical examples to illustrate circuit construction so that readers can develop an intuitive understanding rather than just assimilate the usual conventional analytical knowledge. As SoCs become increasingly complex, analog/radio frequency (RF) system designers have to master both system- and transistor-level design aspects. They must understand abstract concepts associated with large components, such as analog-to-digital converters (ADCs) and phase-locked loops (PLLs). To help readers along, this book discusses topics including: Amplifier basics & design Operational amplifier (Opamp) Data converter basics Nyquist-rate data converters Oversampling data converters High-resolution data converters PLL basics Frequency synthesis and clock recovery Focused more on design than analysis, this reference avoids lengthy equations and instead helps readers acquire a more hands-on mastery of the subject based on the application of core design concepts. Offering the needed perspective on the various design techniques for data converter and PLL design, coverage starts with abstract concepts—including discussion of bipolar junction transistors (BJTs) and MOS transistors—and builds up to an examination of the larger systems derived from microCMOS design.
