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An oscillator is something that produces an output that repeats regularly. In the electronics field this will be an electrical waveform, often but not always a sine wave.
The most important property of an oscillator is its frequency : the rate at which the output repeats. This is measured in Hertz (Hz for short). One Hertz is one repetition (aka cycle) per second. One MegaHertz (MHz) is one million repetitions per second.
One of the problems in designing a high quality oscillator is maintaining the output frequency at the value required. One method is to control it by a quartz crystal; this is cut so that it vibrates mechanically at the design frequency, and is coupled to the electronics by the piezo-electric effect.
A 12 MHz crystal oscillator is an electronic circuit, whose output frequency is controlled by a quartz crystal to repeat 12 million times per second.
(Note. Oscillators don't have to be electronic. Other examples are a guitar string, a Flute or a pendulum. An electronic oscillator is the only one that can be crystal controlled.)
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What is the difference between crystal and local oscillator?
oscillator frequency is different.crystal working piezo electric effect
What type of oscillator used in handwatches?
a crystal 32.768kHz oscillator.
What type of oscillator has got frequency stability?
A: desirable oscillator will have no frequency deviation as a function of external influences such as temperature and more. Stability is measured as a % factor considering outside interferences
Is crystal oscillator used in Varactor diode modulator?
YES
Can I design a crystal oscillator using ua 741 op-amp?
yes
Which oscillator is used in 8051?
crystal oscilators mostrly of 11.05.... or 12MHz are used with microcontrollers,
What is the difference between crystal and local oscillator?
oscillator frequency is different.crystal working piezo electric effect
Which oscillator produces 1MHz frequency?
crystal oscillator
What type of oscillator used in handwatches?
a crystal 32.768kHz oscillator.
Why you use capacitors with crystal oscillator?
To increase the efficiency. Comparison between crystal oscillator and ceramic resonator.
Why crystal oscillator called clap oscillator?
armstron osillator and work
Is RC phase shift oscillator more stable than a crystal oscillator or not?
no
Why is a crystal oscillator required in a radio transmitter?
SOME kind of oscillator is required, to create the AC signal that will be modulated, amplified, and eventually sent up to the antenna to be transmitted. It doesn't have to be a crystal oscillator, though.
What is 12MHz crystal?
An oscillator is something that produces an output that repeats regularly. In the electronics field this will be an electrical waveform, often but not always a sine wave. The most important property of an oscillator is its frequency : the rate at which the output repeats. This is measured in Hertz (Hz for short). One Hertz is one repetition (aka cycle) per second. One MegaHertz (MHz) is one million repetitions per second. One of the problems in designing a high quality oscillator is maintaining the output frequency at the value required. One method is to control it by a quartz crystal; this is cut so that it vibrates mechanically at the design frequency, and is coupled to the electronics by the piezo-electric effect. A 12 MHz crystal oscillator is an electronic circuit, whose output frequency is controlled by a quartz crystal to repeat 12 million times per second. (Note. Oscillators don't have to be electronic. Other examples are a guitar string, a Flute or a pendulum. An electronic oscillator is the only one that can be crystal controlled.)
What is the purpose of an oscillator crystal?
"A circuit within a computer that creates a series of pulses that pace the computer's electronic system. The oscillator clock synchronizes, paces and coordinates the operations of the computer's circuit." -- webopedia
What type of oscillator has got frequency stability?
A: desirable oscillator will have no frequency deviation as a function of external influences such as temperature and more. Stability is measured as a % factor considering outside interferences
Differetiate between LC oscillators and crystal controlled oscillators?
difference between local oscillator and controlled oscillator
