Analysis of Charge-Pump Phase-Locked Loops

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In this paper, we present an exact analysis for thirdorder
charge-pump phase-locked loops using state equations. Both
the large-signal lock acquisition process and the small-signal linear
tracking behavior are described using this analysis. The nonlinear
state equations are linearized for the small-signal condition and
the -domain noise transfer functions are derived.Acomparison to
some of the existing analysis methods such as the impulse-invariant
transformation and -domain analysis is provided. The effect of
the loop parameters and the reference frequency on the loop phase
margin and stability is analyzed. The analysis is verified using behavioral
simulations in MATLAB and SPECTRE.
【文件名】:061223@52RD_analysis_of_charge-pump_phase-locked_loops_5392.pdf
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