Computation of the lock-in ranges of phase-locked loops with PI filter

摘要

In the present work the lock-in range of PLL-based circuits with proportionallyintegratingfilter and sinusoidal phase-detector characteristics are studied. Considered circuitshave sinusoidal phase detector characteristics. Analytical approach based on the methods ofphase plane analysis is applied to estimate the lock-in ranges of the circuits under consideration.Obtained analytical results are compared with simulation results.