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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
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
Frequency synthesizer
synthesis, frequency mixing, and phase-locked loops to generate its frequencies. The stability and accuracy of the frequency synthesizer's output are related
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
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
Frequency divider
of a frequency: f o u t = f i n n {\displaystyle f_{out}={\frac {f_{in}}{n}}} where n {\displaystyle n} is an integer. Phase-locked loop frequency synthesizers
Phase detector
the difference frequency. The Type I detector always produces an output waveform, which must be filtered to control the phase-locked loop voltage-controlled
Voltage-controlled oscillator
part of a phase-locked loop. A voltage-to-frequency converter (VFC) is a special type of VCO designed to be very linear in frequency control over a wide
Frequency comb
mode-locked laser's repetition rate or, alternatively, the modulation frequency), and f 0 {\displaystyle f_{0}} is the carrier offset frequency, which
Frequency drift
variance Phase noise Automatic frequency control (AFC) Phase-locked loop (PLL) "Frequency Drift". Time and Frequency from A to Z. Boulder, CO, USA: National