pll-phase locked loop


Phase-locked loops (PLLs) are used to implement a variety of timing related functions, such as frequency synthesis, clock and data recovery, and clock de-skewing. Any jitter or phase noise in the output of the PLL used in these applications generally degrades the

Predicting the phase noise and jitter of PLLbased frequency synthesizers
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Abstract This paper describes an adlvanced clock distribution architecture employing PLL (phaselocked-loop) for 0.6 pm CMOS SOG (sea-of-gates). This PLL can be customized only by the metallization process according to a system frequency to suit to the stable condition of

Predicting the phase noise of PLLbased frequency synthesizers
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Phase-locked loops (PLLs) are used to implement a variety of timing related functions, such as frequency synthesis, clock and data recovery, and clock de-skewing. Any jitter or phase noise in the output of the PLL used in these applications generally degrades the

Model PLL Dynamics And Phase-Noise
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PLL model was presented. The loop dynamics were modeled to determine the open-and closed-loop transfer functions and the various loop parameters (such as open-loop gain- crossover, phase margin, closed-loop bandwidth, etc.). An example was presented to

Accurate phase noise prediction in PLL synthesizers
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In modern wireless com-munications systems, the phase noise characteristics of the frequency synthesizer play a critical role in system performance. Higher than desired phase noise can cause degraded system performance by reducing the signal to noise ratio,

PLL performance, simulation, and design
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The basic design equations for the passive loop filter is in National Semiconductor Application Note AN-1001An Analysis and Performance Evaluation of a Passive Filter

Improving tracking performance of PLL in high dynamics applications
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ABSTRACT The Phase-Locked Loop ( PLL ) is used in GPS receivers to track an incoming signal and to provide accurate carrier phase measurement. However, the PLL tracking performance and measurement accuracy are affected by a number of factors, such as the

CMS tracker PLL reference manual
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The CMS Tracker PLL (TPLL) is a custom IC that was designed for clock and trigger distribution in the CMS central tracker. This document provides a functional and physical description of the TPLL ASIC from the user perspectiveIn the CMS central tracker system, the LHC reference

Improving tracking performance of PLL in high dynamic applications
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ABSTRACT The Phase-locked loop ( PLL ) is used in GPS receivers to track an incoming signal and to provide accurate carrier phase measurements. However, the PLL tracking performance and measurement accuracy are affected by a number of factors, such as signal-

A 0.048 mm2 3mW synthesizable fractional-N PLL with a soft injection-locking technique
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A 0.048-mm2 3-mW Synthesizable Fractional-N PLL with a Soft Injection-Locking Technique 2015 IEEE International Solid-State Circuits Conference 0 of31 A 0.048-mm2 3-mW Synthesizable Fractional-N PLL with a Soft Injection-Locking Technique,

PLL performance for signals in the presence of thermal noise, phase noise, and ionospheric scintillation
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ABSTRACT Performance of several carrier tracking loops are evaluated by the wideband data that mimic the real ionospheric scintillation. To accommodate the deficiency of the receiveroscillator, six-state dynamic model driven by Gaussian-distributed random

A software-based PLL model: Analysis and applications
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Abstract This paper discusses the modeling of a fully software-base Phase Locked Loop ( PLL ) algorithm for power electronic and power systemapplications. The theoretical analysis and design procedure are based on instantaneous vector calculation and

A 0.6 GHz to 2GHz Digital PLL with Wide Tracking Range.
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AbstractA digital PLL employing an adaptive tracking technique and a novel frequency acquisition scheme achieves a wide tracking range and fast frequency acquisition. The test chip fabricated in a 0.13 m CMOS process operates from 0.6 GHz to 2GHz and achieves

A performance comparison of current starved VCO and source coupled VCO for PLL in 0.18 um CMOS process
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AbstractThis paper describes a performance comparison of two Voltage Controlled Oscillator for Phase Locked Loop. Current Starved VCO and Source Coupled VCO for PLLs in a 0.18m digital CMOS process are designed and their performances are compared

PLL design using the PLL Design Assistant program
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The PLL Design Assistant program allows fast and straightforward design of phase locked loops at the transfer function level. In particular, the program takes as input a desired closed loop transfer function description and then automatically calculates the open loop