Non-linear behaviour of charge-pump phase-locked loops
نویسندگان
چکیده
منابع مشابه
Behavioral modeling of charge pump phase locked loops
The CP-PLL’ is a typical mixed signal device; there is no general theory to describe exactly the dynamics of its non-linear transient. Many models have been presented to model the behavior of the PLL’. A discrete linear model, a discrete non-linear model and an event-driven model of the second order PLL have been proposed. A comparison of these models with a transistor level model will show tha...
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This paper presents an analysis of the nonlinear dynamics of a Charge Pump Phase-Locked Loop. The closed-loop circuit is modelled using decision-based equations developed by Van Paemel. State space plots; bifurcation diagrams and the presence of a chaotic attractor all indicate a significant level of underlying nonlinear phenomena. A calculation of the fractal dimension of the chaotic attractor...
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The combination of feedback and quantization causes special problems. (Each on its own has its problems, like instability and round-off errors.) The main problem is the likely existence of multiple equilibria or limit cycles. Another is possible coherence between the input signal and quantization error or limit cycle, making the error indistinguishable from whatever signal characteristic we wan...
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The evaluation of integrated circuits such as Phase Locked Loops is a challenge in mixed-signal design. In most cases, these circuits are evaluated with electrical stimulations. To verify the proper operation of system before moving on to the design process, it is necessary to model these performances parameters with a hardware description language. At behavioral level, the performances of circ...
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issue of the stimulation of charge-pump phase-locked loops for built-in self-test applications. It is shown that three nodes of the PLL qualify for test signal injection. The hardware and methodology for each are discussed. In particular, a comprehensive explanation of the use of delta-sigma modulation in the time domain is provided. Furthermore, implementation issues of analog tests with signa...
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ژورنال
عنوان ژورنال: Advances in Radio Science
سال: 2010
ISSN: 1684-9973
DOI: 10.5194/ars-8-161-2010