Download or read book Reference less Linear Sub baud rate Clock and Data Recovery Circuit written by 鄒墨 and published by . This book was released on 2021 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Frequency Detection for Reference less Baud rate Clock and Data Recovery in 28nm CMOS written by Wahid Rahman and published by . This book was released on 2017 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis presents the analysis, design, simulation, and measurements of a frequency detection method for a reference-less baud-rate clock data recovery (CDR) circuit. This CDR was designed with a continuous-time linear equalizer (CTLE) and a 1-tap decision feedback equalizer (DFE) to implement a high-speed wireline receiver in a 28nm CMOS process and packaged in a 40-pin Quad-Flat No-leads (QFN) package. The frequency detection method automatically controls an adjustable baud-rate phase detector to correct frequency error between the incoming data and the recovered clock without a separate frequency acquisition loop in the CDR. To characterize the performance of this method, PRBS-31 data ranging from 22.5Gb/s to 32Gb/s was transmitted across a Tyco 5-inch channel with -10.1dB to -14.8dB channel loss at Nyquist. The frequency detection method was measured to achieve a capture range of 34%. The entire receiver achieved a power eciency ranging from 2.9pJ/bit to 3.2pJ/bit.

Download or read book Baud rate Clock and Data Recovery Circuits Using Semirotational Frequency Detection and Jitter tolerance enhanced Technique written by 彭熙凱 and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Monolithic Phase Locked Loops and Clock Recovery Circuits written by Behzad Razavi and published by John Wiley & Sons. This book was released on 1996-04-18 with total page 516 pages. Available in PDF, EPUB and Kindle. Book excerpt: Featuring an extensive 40 page tutorial introduction, this carefully compiled anthology of 65 of the most important papers on phase-locked loops and clock recovery circuits brings you comprehensive coverage of the field-all in one self-contained volume. You'll gain an understanding of the analysis, design, simulation, and implementation of phase-locked loops and clock recovery circuits in CMOS and bipolar technologies along with valuable insights into the issues and trade-offs associated with phase locked systems for high speed, low power, and low noise.

Download or read book Clock data Recovery Circuits Using Wide range Baud rate FD and BLGC written by 姚允升 and published by . This book was released on 2020 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Baud rate Clock data Recovery Circuits with Wide range FD and Jitter tolerance enhanced Technique written by 陳尉銘 and published by . This book was released on 2021 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book High speed Baud rate Clock Recovery written by Faisal Ahmed Musa and published by . This book was released on 2008 with total page 302 pages. Available in PDF, EPUB and Kindle. Book excerpt: Baud-rate clock recovery (CR) is gradually gaining popularity in modern serial data transmission systems since these CR techniques do not require edge-samples for extracting timing information. However, previous baud-rate techniques for high-speed serial links either rely on specific 4-bit patterns or uncorrelated random data. This work describes the modeling and design of analog filter front-end aided baud-rate CR schemes. Unlike other baud-rate schemes, this technique is not constrained by the properties of the input random data.Firstly, the thesis develops a hardware-efficient baud-rate algorithm that requires only the slope information of the incoming random data. Called modified sign-sign minimum mean squared error (SSMMSE), this algorithm adjusts the clock sampling phase until the slope is zero through a bang-bang control loop. Secondly, the performance of a modified SSMMSE phase detector is investigated and compared with a conventional edge-sampled phase detector. It is shown that, at severe noise levels, the proposed modified SSMMSE method has better performance compared to the edge-sampled method for equal loop bandwidths. Thirdly, the thesis investigates different hardware-efficient slope detection techniques. Both passive and active filter based slope detection techniques are demonstrated in this work. In addition to slope generation, the active filter performs linear equalization as well. However, the passive filter generates the slope information at higher speeds than the active filter and also consumes less power. The two filters are used to recover a 2-GHz clock by using an external bang-bang loop. In short, the thesis demonstrates that area and power savings can be achieved by utilizing slope information from front-end filters without compromising the performance of the CR unit.

Download or read book High speed Baud rate Clock Recovery written by FAISAL. MUSA and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book High Speed Clock and Data Recovery Analysis written by Abishek Namachivayam and published by . This book was released on 2020 with total page 35 pages. Available in PDF, EPUB and Kindle. Book excerpt: Baud rate clock and data recovery circuits are critical to high speed serial links since these require only one sample per data period thereby requiring low speed samplers and comparators. This work models and discusses the backend of one particular Baud rate CDR – Mueller Muller, and analyses some of the building blocks of the CDR – Phase Detector, Phase Interpolator and the Quadrature Phase Generator. Firstly, a PAM-4 Quadrature Phase Detector operating at 80Gb/s is discussed. The challenges associated with designing a Mueller-Muller PD for an asymmetric channel are discussed and one way to resolve this issue is proposed. Then the underlying digital blocks that make up the Phase detector are expanded upon. Secondly, a 64-step digitally controlled Phase Interpolator running at 16GHz clock rate is analyzed and its design challenges with regards to achieving linearity and ensuring duty cycle fidelity are explored. Finally, a Quadrature Phase Generator with digital delay control is analyzed. It is modeled at 16GHz clock rate and the range/resolution problem and its impact on clock jitter is explored.

Download or read book Low jitter Clock and Data Recovery Circuit with Wide linear range Frequency Detector written by 李明華 and published by . This book was released on 2007 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book High Speed Baud Rate Clock and Data Recovery written by Danny Yoo and published by . This book was released on 2018 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis presents an adaptive baud-rate CDR with CTLE and 1-tap DFE. The novelty in this design is the adaptation engine tailored for baud-rate clock and data recovery where the comparators for the DFE and the PD are shared to save power. A testchip was fabricated in TSMC 28nm CMOS. The adaptation engine is demonstrated for 34-36Gb/s operation with a Tyco 5" channel resulting in 15.05-18.25dB channel losses. At 35Gb/s, the total power consumption is measured to be 106.3mW or a FOM of 3.04pJ/bit. This thesis also presents a 2x half-baud-rate clock and data recovery technique with 2x oversampling at half-baud-rate (every other UI). A testchip was also fabricated in TSMC 28nm CMOS. A 30Gb/s 2x half-baud-rate CDR was tested with a Tyco 5" channel with 13.06dB of loss. The total power consumption is measured to be 79.2mW or a FOM of 2.64pJ/bit.

Download or read book Performance Analysis for Clock and Data Recovery Circuits Under Process Variation written by and published by . This book was released on 2007 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt: Clock and data recovery circuits play a very important role in modern data communication systems. It has very wide application in many areas, such as optical communications and interconnection between chips [1]. Today in IC industry, the shrinkage of feature size increasingly enlarges the uncertainty of circuit performance caused by process variation. As the data transmission speed dramatically increases, this uncertainty will heavily affect the clock and data recovery circuit performance and reliability in communication systems. Thus, research on performance variation of a clock and data recovery circuit caused by process variation is meaningful. The conclusion will have significant influence on chip testing. In this research, a clock and data recovery circuit is laid out by TSMC 180nm technology. The performance variation caused by process variation is investigated by HSPICE simulation, and compared with the theoretical analysis results derived through the mathematical model of the clock and data recovery circuit. The results demonstrate that our theoretical model matches well with the real simulations. Both theoretical and simulation results also indicate that process variations in the low pass filter have significant impact on performance parameters such as damping ratio, natural frequency, and lock time of the clock and data recovery circuit. Reference 1. B. Razavi, Challenges in the design high-speed clock and data recovery circuits, IEEE Communications Magazine, vol. 40, no. 8, pp. 94- 101, Aug. 2002.

Download or read book Inductorless Half rate Clock and Data Recovery Circuit written by 王登霖 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 Circuit Design written by Michiel Steyaert and published by Springer Science & Business Media. This book was released on 2008-09-19 with total page 361 pages. Available in PDF, EPUB and Kindle. Book excerpt: Analog Circuit Design contains the contribution of 18 tutorials of the 17th workshop on Advances in Analog Circuit Design. Each part discusses a specific to-date topic on new and valuable design ideas in the area of analog circuit design. Each part is presented by six experts in that field and state of the art information is shared and overviewed. This book is number 17 in this successful series of Analog Circuit Design.

Download or read book High Speed Clock and Data Recovery Circuits for Random Non return to zero Data written by Seema Butala Anand and published by . This book was released on 2001 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Phase Locked Loops written by Woogeun Rhee and published by John Wiley & Sons. This book was released on 2024-01-11 with total page 389 pages. Available in PDF, EPUB and Kindle. Book excerpt: Discover the essential materials for phase-locked loop circuit design, from fundamentals to practical design aspects A phase-locked loop (PLL) is a type of circuit with a range of important applications in telecommunications and computing. It generates an output signal with a controlled relationship to an input signal, such as an oscillator which matches the phases of input and output signals. This is a critical function in coherent communication systems, with the result that the theory and design of these circuits are essential to electronic communications of all kinds. Phase-Locked Loops: System Perspectives and Circuit Design Aspects provides a concise, accessible introduction to PLL design. It introduces readers to the role of PLLs in modern communication systems, the fundamental techniques of phase-lock circuitry, and the possible applications of PLLs in a wide variety of electronic communications contexts. The first book of its kind to incorporate modern architectures and to balance theoretical fundamentals with detailed design insights, this promises to be a must-own text for students and industry professionals. The book also features: Coverage of PLL basics with insightful analysis and examples tailored for circuit designers Applications of PLLs for both wireless and wireline systems Practical circuit design aspects for modern frequency generation, frequency modulation, and clock recovery systems Phase-Locked Loops is essential for graduate students and advanced undergraduates in integrated circuit design, as well researchers and engineers in electrical and computing subjects.

Download or read book A 26 28 gbps Clock and Data Recovery System with Embedded Equalization in 65 nm CMOS for 100GbE written by Li Sun and published by . This book was released on 2013 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt: A power and area efficient approach to embed a continuous time linear equalizer (CTLE) into a clock and data recovery (CDR) circuit for the next generation 100GbE system is presented in this work. The proposed merged CDR/equalizer system is implemented in 65-nm CMOS without extra power penalty, and achieves full-rate operation up to 28-Gb/s. Current-mode-logic (CML) with shunt peaking loads and customized differential pair layout are used to extend the circuit bandwidth. To minimize the area penalty, customized stacked differential inductors have been designed. These inductors achieve an inductance density 3.2 times higher than the standard single-layer design from the PDK library. The CDR/equalizer core occupies 0.33 mm2 and draws 104 mA from a 1-V supply. The measured BER of the recovered data is less than 10-12 at 27-Gb/s for 211-1 400mVpp input PRBS data. The measured recovered clock and data rms jitter is 1.0 and 2.6 ps, respectively. The CDR is able to lock to inputs from 26-28-Gb/s with 29-1 PRBS pattern. The embedded equalizer enables the CDR to recover a 26-Gb/s 27-1 PRBS data with BER