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A crystal oscillator is an electronic oscillator circuit that uses a piezoelectric crystal as a frequency-selective element. [1] [2] [3] The oscillator frequency is often used to keep track of time, as in quartz wristwatches, to provide a stable clock signal for digital integrated circuits, and to stabilize frequencies for radio transmitters and receivers.
Commercial rubidium frequency standards operate by disciplining a crystal oscillator to the rubidium hyperfine transition of 6.8 GHz (6 834 682 610.904 Hz). The intensity of light from a rubidium discharge lamp that reaches a photodetector through a resonance cell will drop by about 0.1% when the rubidium vapor in the resonance cell is exposed ...
Rakon Limited is a technology company founded in 1967 that designs and manufactures frequency control products, primarily quartz crystals and temperature-compensated crystal oscillators (), [1] oven controlled crystal oscillators and voltage controlled crystal oscillators (). [2]
Crystal oscillators can be manufactured for oscillation over a wide range of frequencies, from a few kilohertz up to several hundred megahertz.Many applications call for a crystal oscillator frequency conveniently related to some other desired frequency, so hundreds of standard crystal frequencies are made in large quantities and stocked by electronics distributors.
An electrical oscillator was first used to sustain the motion of a tuning fork by the British physicist William Eccles in 1919; [33] his achievement removed much of the damping associated with mechanical devices and maximised the stability of the vibration's frequency. [33] The first quartz crystal oscillator was built by Walter G. Cady in 1921.
1950 : Started crystal unit production and sales. 1958 : Succeeded in test production of synthetic quartz crystal. 1959 : Started crystal filter production. 1960 : Started crystal oscillator production. 1963 : Began trading of NDK stock on the OTC market. 1979 : Developed and industrialized surface acoustic wave filter.
The Intel 8284 is a clock oscillator chip developed primarily for supplying clock signals for the Intel-8086/8087/8088/8089 series of processors. The commercial variant of the chip comes in 18-pin DIL and 20-pin PLCC packages, and originally was priced at $4.90 USD.
Crystal oscillator Nowadays the company exports its production to nearly 500 enterprises from Russia and CIS (Commonwealth of Independent States). Meteor's production has industrial and satellite purpose.
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