4 research outputs found
Transient analysis of bang-bang phase locked loops
This work gives insight into the behaviour of second-order bang-bang phase locked loops in the far from lock region. This region, while largely unexplored, is of particular interest as PLL behaviour in this region determines locking time and capture range. By analysing PLL cycle slipping behaviour in this region, the transient response for the system is derived. Expressions for first-order system stability and locking time are also presented
Closed-Form Analytical Equations to Transient Analysis of Bang-Bang Phase-Locked Loops
Due to the nonlinear nature of the Bang-Bang phase-locked loops (BBPLLs), its
transient analysis is very difficult. In this paper, new equations are proposed for expression
of transient behavior of the second order BBPLLs to phase step input. This approach gives
new insights into the transient behavior of BBPLLs. Approximating transient response to
reasonable specific waveform the loop transient time characteristics such as locking time,
peak time, rise time and over shoot are derived with acceptable accuracy. The validity of
the resulted equations is verified through simulations using MATLAB SIMULINK.
Simulation results show the high accuracy of the proposed method to model BBPLLs
behavior