منابع مشابه
Phase-Locked Loop Design Fundamentals
The fundamental design concepts for phase-locked loops implemented with integrated circuits are outlined. The necessary equations required to evaluate the basic loop performance are given in conjunction with a brief design example. NOTE This document contains references to obsolete part numbers and is offered for technical information only.
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In this paper, a high speed delay-locked loop (DLL) architecture ispresented which can be employed in high frequency applications. In order to design the new architecture, a new mixed structure is presented for phase detector (PD) and charge pump (CP) which canbe triggered by double edges of the input signals. In addition, the blind zone is removed due to the elimination of reset signal. Theref...
متن کاملPhase Locked Loop Circuits
1. Definition. A PLL is a feedback system that includes a VCO, phase detector, and low pass filter within its loop. Its purpose is to force the VCO to replicate and track the frequency and phase at the input when in lock. The PLL is a control system allowing one oscillator to track with another. It is possible to have a phase offset between input and output, but when locked, the frequencies mus...
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Coupled phase-locked loops (CPLLs) are introduced as novel circuits for phased-array antennas. Successful implementation relies on characterizing the synchronization behavior of CPLL circuits over a broad range of circuit parameters. Considering inherent time delay in the phase-locked loop demonstrates the degradation in the pull-in and hold-in ranges, as well as circuit instabilities, suggesti...
متن کاملPhase Locked Loops Design and Analysis
New methods, for the design of different block diagrams of PLL, using the asymptotic analysis of high-frequency periodic oscillations, are suggested. The PLL description on three levels is made: 1) on the level of electronic realizations; 2) on the level of phase and frequency relations between inputs and outputs in block diagrams; 3) on the level of differential and integro-differential equati...
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ژورنال
عنوان ژورنال: Journal of Technological Advances and Scientific Research
سال: 2015
ISSN: 2395-5600,2454-1788
DOI: 10.14260/jtasr/2015/4