Design of Fast Locking and Locking Detection System of Frequency Synthesizer
نویسندگان
چکیده
منابع مشابه
designing a fast locking pll
a phase-locked loop (pll) based frequency synthesizer is an important circuit that is used in many applications, especially in communication systems such as ethernet receivers, disk drive read/write channels, digital mobile receivers, high-speed memory interfaces, system clock recovery and wireless communication system. other than requiring good signal purity such as low phase noise and low spu...
Fast Frequency Acquisition and Phase Locking of Nonplanar Ring Oscillators
Optical phase locking is a critical technique in space coherent optical communication and active coherent laser beam combining. In a typical optical phase locking loop based on nonplanar ring oscillators, the pull-in range is normally less than 1 MHz, limited by loop delay and frequency tuning bandwidth of the laser source. Phase locking cannot be achieved at large initial frequency differences...
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Abstract— This paper presents a novel approach to obtain fast locking PLL by embedding a nonlinear element in the loop of PLL. The nonlinear element has a general parametric Taylor expansion. Using genetic algorithm (GA) we try to optimize the nonlinear element parameters. Embedding optimized nonlinear element in the loop shows enhancements in speed and stability of PLL. To evaluate the perform...
متن کاملA Fast Locking Scheme for PLL Frequency Synthesizers
Frequency synthesizers are used in a large number of time division multiplexed (TDMA) and frequency hopping wireless applications where quickly attaining frequency lock is critical. A new frequency synthesizer is described which employs a scheme for reducing lock time by a factor of two using a conventional phase locked loop architecture. Faster lock is attained by shifting the loop filter’s ze...
متن کاملA Fast Locking Scheme for PLL Frequency Synrhesizers
Frequency synthesizers are used in a large number of time division multiplexed (TDMA) and frequency hopping wireless applications where quickly attaining frequency lock is critical. A new frequency synthesizer is described which employs a scheme for reducing lock time by a factor of two using a conventional phase locked loop architecture. Faster lock is attained by shifting the loop filter’s ze...
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ژورنال
عنوان ژورنال: Journal of Physics: Conference Series
سال: 2021
ISSN: 1742-6588,1742-6596
DOI: 10.1088/1742-6596/1871/1/012059