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Book A Current mode Logic Frequency Divider for an All Digital Phase locked Loop in 0 18um CMOS

Download or read book A Current mode Logic Frequency Divider for an All Digital Phase locked Loop in 0 18um CMOS written by Sruthi Penmetsa and published by . This book was released on 2016 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: A phase-locked loop (PLL) is an important mixed-signal circuit that is used on almost every integrated circuit. A frequency divider is needed in the PLL loop to allow the use of a low frequency reference clock that is typically provided by a highly accurate off-chip crystal oscillator. This project is focused on the design of a current-mode logic (CML) frequency divider in 0.18um CMOS for an all digital phase-locked loop. Current-mode logic is used for the first few stages of the overall frequency divider, where the frequency of operation is too high for standard CMOS logic to operate properly. For this project, a CML frequency divider was designed in 0.18um CMOS and simulations were performed to verify performance for typical as well as worst case conditions.

Book A Programmable Frequency Divider for an All Digital Phase locked Loop in 0 18um CMOS

Download or read book A Programmable Frequency Divider for an All Digital Phase locked Loop in 0 18um CMOS written by Monica Yerranagula and published by . This book was released on 2016 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt: A phase-locked loop is needed on nearly every integrated circuit to align the phase and frequency of the clock created by the on-chip oscillator to an external reference clock. This project was to design and simulate a programmable frequency divider in 0.18um CMOS for an all digital phase-locked loop integrated circuit. The frequency divider can provide one of four different output frequencies, based on the input control bits. Schematics for the programmable frequency divider were designed using Cadence Virtuoso, and simulations were performed using the Spectre simulator. Simulations were run for both typical and worst-case variations of process, supply voltage, and temperature.

Book Design of the Current Mode Logic Frequency Divider for a Phase Locked Loop with Center Frequency of 622 08 MHz in 0 35 mu m CMOS

Download or read book Design of the Current Mode Logic Frequency Divider for a Phase Locked Loop with Center Frequency of 622 08 MHz in 0 35 mu m CMOS written by Sunil Anthony and published by . This book was released on 2005 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Design and Simulation of a Current mode Logic Frequency Divider and Buffer Chain for a Phase locked Loop in 0 18 micrometre CMOS

Download or read book Design and Simulation of a Current mode Logic Frequency Divider and Buffer Chain for a Phase locked Loop in 0 18 micrometre CMOS written by Curtis Jacob Ritter (III) and published by . This book was released on 2017 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt: A current-mode logic (CML) frequency divider and buffer chain were designed and simulated for a phase-locked loop (PLL) in 0.18[micrometre] CMOS. In the CML buffer chain, a P-to-N channel converter was designed to convert a signal from a CML buffer using PMOS inputs to one using NMOS inputs. A scale factor of [alpha] = 2 was used between buffers to allow larger capacitive loads to be driven while maintaining high edge-rates. In the frequency divider, three toggle flip-flops and a multiplexor were used to divide the input frequency by 2, 4, or 8. At the output of the frequency divider, a CML-to-CMOS converter was designed to convert the limited-swing CML signals to full swing CMOS signals, suitable for use with standard CMOS logic. Simulation results show that all circuits met the functional and performance goals, including the minimum 4mV/ps edge-rate needed to minimize jitter.

Book Time to digital Converter for an All digital Phase locked Loop

Download or read book Time to digital Converter for an All digital Phase locked Loop written by Sanjeet Sawant and published by . This book was released on 2017 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt: A phase-locked loop (PLL) is a widely-used mixed-signal circuit that is used to create the precise clocks required on almost every integrated circuit. A PLL uses negative feedback to control an on-chip oscillator so that its frequency equals a multiple of a reference clock frequency provided from off-chip. The on-chip clock and the reference clock have a stable phase relationship. In recent years phase-locked loops have moved towards digital-intensive or all-digital designs due to advancements in CMOS technology which make these attractive in terms of area and power consumption. This project was to design and simulate a time-to-digital converter (TDC), which is a circuit used in an all-digital phase-locked loop. The TDC converts the phase difference between the on-chip clock and the reference clock into a digital code which is used to adjust the phase and frequency of the on-chip oscillator. Circuit schematics were designed for a time-to-digital converter in Cadence Virtuoso and simulated using the Spectre simulator in a 0.18um CMOS process. Simulations were performed to verify the performance across variations in process, supply voltage, and temperature.

Book Low Noise Low Power Design for Phase Locked Loops

Download or read book Low Noise Low Power Design for Phase Locked Loops written by Feng Zhao and published by Springer. This book was released on 2014-11-25 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book introduces low-noise and low-power design techniques for phase-locked loops and their building blocks. It summarizes the noise reduction techniques for fractional-N PLL design and introduces a novel capacitive-quadrature coupling technique for multi-phase signal generation. The capacitive-coupling technique has been validated through silicon implementation and can provide low phase-noise and accurate I-Q phase matching, with low power consumption from a super low supply voltage. Readers will be enabled to pick one of the most suitable QVCO circuit structures for their own designs, without additional effort to look for the optimal circuit structure and device parameters.

Book Phase Locked Loops for Wireless Communications

Download or read book Phase Locked Loops for Wireless Communications written by Donald R. Stephens and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 379 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is intended for the graduate or advanced undergraduate engineer. The primary motivation for writing the text was to present a complete tutorial of phase-locked loops with a consistent notation. As such, it can serve as a textbook in formal classroom instruction, or as a self-study guide for the practicing engineer. A former colleague, Kevin Kreitzer, had suggested that I write a text, with an emphasis on digital phase-locked loops. As modem designers, we were continually receiving requests from other engineers asking for a definitive reference on digital phase-locked loops. There are several good papers in the literature, but there was not a good textbook for either classroom or self-paced study. From my own experience in designing low phase noise synthesizers, I also knew that third-order analog loop design was omitted from most texts. With those requirements, the material in the text seemed to flow naturally. Chapter 1 is the early history of phase-locked loops. I believe that historical knowledge can provide insight to the development and progress of a field, and phase-locked loops are no exception. As discussed in Chapter 1, consumer electronics (color television) prompted a rapid growth in phase-locked loop theory and applications, much like the wireless communications growth today. xiv Preface Although all-analog phase-locked loops are becoming rare, the continuous time nature of analog loops allows a good introduction to phase-locked loop theory.

Book Phase locked Loops

Download or read book Phase locked Loops written by Roland E. Best and published by McGraw-Hill Companies. This book was released on 1984 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Phase locked Loops

Download or read book Phase locked Loops written by Paul V. Brennan and published by . This book was released on 1996 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written from an engineering viewpoint, this book is a concise guide to the theory and design of phase-locked loop circuits. It includes novel techniques and analytical treatments as well as worked examples.

Book Frequency Synthesis Of All Digital Phase Locked Loop

Download or read book Frequency Synthesis Of All Digital Phase Locked Loop written by Saravanakumar Subramanian and published by LAP Lambert Academic Publishing. This book was released on 2012 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: All Digital Phase Locked Loops (ADPLLs) have become more attractive because they yield better testability, programmability, stability, and portability over different processes and the ADPLLs can reduce the system turn around time. Phase-locked loop mechanisms may be implemented as either analog or digital circuits. Both implementations use the same basic structure. The implemented ADPLL has two operation modes which are frequency acquisition mode and phase acquisition mode. In frequency acquisition mode, the ADPLL achieves a fast frequency locking via the proposed feed-forward compensation algorithm. In phase acquisition mode, the ADPLL achieves a finer phase locking.

Book A 75 GHz Current Mode Logic Static Frequency Divider Realized in a Commercially Available InP Process

Download or read book A 75 GHz Current Mode Logic Static Frequency Divider Realized in a Commercially Available InP Process written by and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This work presents the fastest Current Mode Logic static frequency divider to date. The circuit is fabricated in a commercially available InP process. Microwave techniques are used to achieve speeds of 75 GHz without resort to emitter followers. Interconnect design is stressed and the results of several variations are presented. Microstrip, inverted microstrip, peaking inductors and keep-alive currents have all been fabricated and compared.

Book Design of Phase locked Loop Circuits with Experiments

Download or read book Design of Phase locked Loop Circuits with Experiments written by Howard M. Berlin and published by Prentice Hall. This book was released on 1978 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Phase Locked Loops for Wireless Communications

Download or read book Phase Locked Loops for Wireless Communications written by Donald R. Stephens and published by Springer Science & Business Media. This book was released on 2002 with total page 450 pages. Available in PDF, EPUB and Kindle. Book excerpt: A tutorial of phase-locked loops from analogue implementations to digital and optical designs. This text establishes a foundation of continuous-time analysis techniques and maintains a consistent notation as discrete-time and non-uniform sampling are presented. It examines charge pumps and the complementary sequential phase detector. Frequency synthesizers and digital divider analysis/techniques are also included in this edition.; Starting with a historical overview, presenting analogue, digital, and optical PLLs, discussing phase noise analysis, and including circuits/algorithms for data synchronization, this volume illustrates the techniques being used in this field.; The subjects covered include: development of phase-locked loops from analogue to digital and optical, with notation throughout; expanded coverage of the loop filters used to design second- and third-order PLLs; design examples on delay-locked loops used to synchronize circuits on CPUs and ASICS; new material on digital dividers that dominate a frequency synthesizer's noise floor; techniques to analytically estimate the phase noise of a divider; presentation of optical phase-locked loops with primers on the optical components and fundamentals of optical mixing; a section on automatic frequency control to provide frequency-locking of the lasers instead of phase-locking; and a presentation of charge pumps, counters, and delay-locked loops.; This volume includes the topics that should be of interest to wireless, optics, and the traditional phase-locked loop specialist to design circuits and software algorithms.

Book A Power Efficient 26 GHz 32 1 Static Frequency Divider in 130 nm Bulk CMOS

Download or read book A Power Efficient 26 GHz 32 1 Static Frequency Divider in 130 nm Bulk CMOS written by and published by . This book was released on 2005 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt: A 32:1 static frequency divider consisting of five stages of 2:1 dividers using current mode logic (CML) was fabricated in a 130-nm bulk complementary metal-oxide semiconductor (CMOS) logic process. By optimizing transistors size, high operating speed is achieved with limited power consumption. For an input power of 0 dBm, the 32:1 divider operates up to 26 GHz with a 1.5-V supply voltage. The whole 32:1 chain including buffers consumes 8.97 mW and the first stage consumes only 3.88 mW at a 26-GHz operation. The power consumption of the first 2:1 stage is less than 15% of other bulk CMOS static frequency dividers operating at the same frequency. Index Terms Complementary metal-oxide semiconductor (CMOS), current mode logic (CML), frequency divider.