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April 2021

Phase-locked loop
A phase-locked loop or phase lock loop (PLL) is a control system that generates an output signal whose phase is related to the phase of an input signal
Phase-locked loop range
(acquisition range), and lock-in range are widely used by engineers for the concepts of frequency deviation ranges within which phase-locked loop-based circuits
Phase detector
represents the difference in phase between two signal inputs. It is an essential element of the phase-locked loop (PLL). Detecting phase difference is very important
Delay-locked loop
In electronics, a delay-locked loop (DLL) is a digital circuit similar to a phase-locked loop (PLL), with the main difference being the absence of an
Costas loop
A Costas loop is a phase-locked loop (PLL) based circuit which is used for carrier frequency recovery from suppressed-carrier modulation signals (e.g
Detector (radio)
is the demodulated audio output. The phase-locked loop detector should not be confused with the phase-locked loop frequency synthesizer, which is often
PLL multibit
A PLL multibit or multibit PLL is a phase-locked loop (PLL) which achieves improved performance compared to a unibit PLL by using more bits. Unibit PLLs
Frequency-locked loop
A frequency-lock, or frequency-locked loop (FLL), is an electronic control system that generates a signal that is locked to the frequency of an input or
Charge-pump phase-locked loop
Charge-pump phase-locked loop (CP-PLL) is a modification of phase-locked loops with phase-frequency detector and square waveform signals. CP-PLL allows
Frequency divider
f_{out}={\frac {f_{in}}{n}}} where n {\displaystyle n} is an integer. Phase-locked loop frequency synthesizers make use of frequency dividers to generate