frequency lock loop

См. также в других словарях:

• 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 reference signal. This circuit compares the frequency of a controlled oscillator to the… …   Wikipedia

• Frequency synthesizer — A frequency synthesizer is an electronic system for generating any of a range of frequencies from a single fixed timebase or oscillator. They are found in many modern devices, including radio receivers, mobile telephones, radiotelephones, walkie… …   Wikipedia

• Frequency compensation — In electrical engineering, frequency compensation is a technique used in amplifiers, and especially in amplifiers employing negative feedback. It usually has two primary goals: To avoid the unintentional creation of positive feedback, which will… …   Wikipedia

• Frequency comb — A frequency comb is the graphic representation of the spectrum of a mode locked laser. An octave spanning comb can be used for mapping radio frequencies into the optical frequency range or it can be used to steer a piezoelectric mirror within a… …   Wikipedia

• Frequency multiplier — A frequency multiplier is commonly used in a radio receiver or radio transmitter to multiply the base frequency of the oscillator by a predetermined number. This multiplied frequency is then amplified and sent to the final drive stage and into… …   Wikipedia

• Phase-locked loop — PLL redirects here. For other uses, see PLL (disambiguation). 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 reference signal. It is an electronic… …   Wikipedia

• Phase-locked Loop — Eine Phasenregelschleife, auch als Phase locked loop (PLL) bezeichnet, ist eine elektronische Schaltungsanordnung, die die Phasenlage und damit zusammenhängend die Frequenz eines veränderbaren Oszillators über einen geschlossenen Regelkreis so… …   Deutsch Wikipedia

• Phase-locked loop — Eine Phasenregelschleife, auch als englisch Phase locked loop (PLL) bezeichnet, ist eine elektronische Schaltungsanordnung, die die Phasenlage und damit zusammenhängend die Frequenz eines veränderbaren Oszillators über einen geschlossenen… …   Deutsch Wikipedia

• 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 internal voltage controlled oscillator. A DLL can be used to change the phase of a clock signal… …   Wikipedia

• Phase Frequency Detector — A phase frequency detector, in electronics, is a device which compares the phase of two input signals. It has two inputs which correspond to two different input signals, usually one from a voltage controlled oscillator (VCO) and another from some …   Wikipedia

• AZUSA — refers to a ground based radar tracking system installed at Cape Canaveral, Florida and the NASA Kennedy Space Center. AZUSA dated back to the early 1950s and was named after the southern California town (Azusa, California) where the system was… …   Wikipedia