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A phase-locked loop or phase lock loop (PLL) is a control system that generates an output signal whose phase is fixed relative to the phase of an input signal. Keeping the input and output phase in lockstep also implies keeping the input and output frequencies the same, thus a phase-locked loop can also track an input frequency.
Pretty Little Liars is an American mystery teen drama television series created by I. Marlene King, which aired on Freeform [b] from June 8, 2010 to June 27, 2017, based on the novel series of the same name written by Sara Shepard, lasting 160 episodes over seven seasons.
Some of the female cast of the show from left to right: Sasha Pieterse, Shay Mitchell, Lucy Hale, Troian Bellisario, Ashley Benson and Janel Parrish Pretty Little Liars is an American teen drama television series created by I. Marlene King for Freeform.
"A" is a fictional character in the Pretty Little Liars franchise. Created by author Sara Shepard in 2006, the character serves as the main antagonist in both the television and book series.
A first linear mathematical model of second-order CP-PLL was suggested by F. Gardner in 1980. [2] A nonlinear model without the VCO overload was suggested by M. van Paemel in 1994 [3] and then refined by N. Kuznetsov et al. in 2019. [4]
"How the 'A' Stole Christmas" is the thirteenth episode of the fifth season and 108th episode overall of the mystery drama television series Pretty Little Liars, which aired ...