Numerous electronic device needs frequency control device to gain frequency stability. The most common devices in frequency management are crystals and oscillators. Various products are available for different need.

Quartz crystal is become very important in electronic industries since crystal has many benefits. Crystal is cost effective and wide tolerance. The most important property of crystal that very important in electronic industry, especially in frequency management is piezoelectric. Piezoelectric properties of crystal make it great frequency stability. It is also has better temperature stability to be ideal for high temperature and extreme environment. Quartz crystal has wide range of applications from commercial, industrial, to military application. You can find quartz crystal is various form such as communication crystals, microprocessor crystals, watch crystal, etc. High temperature crystal is also available for extreme condition. It is also high reliability with high-shock and vibration resistant. Crystal is also use for oscillator. Crystal oscillator use piezoelectric property of crystal to have high stability as well as temperature stability.

Oscillator is producing repetitive electronic signal. It is produce constant frequency output so frequency stability is the most important features of oscillator. This is the reason why crystal oscillator has more advantage. Oscillator is categorized by harmonic oscillator and relaxation oscillator. Harmonic oscillator produces sinusoidal wave while relaxation oscillator produces non-sinusoidal wave. Crystal oscillator is harmonic type. Crystal oscillator is the most common circuit use on electronic equipment. You can find oscillator on computers, industrial instruments, radio, TV, video games, telecommunications device, geothermal, commercial space instruments, computer networks, wireless products, electronic beepers, quartz clocks, and much more. Crystal oscillator is available in various types from standard to custom package. Voltage, mounting, and temperature is the most common factor that differ oscillator products, for example is low voltage oscillators, voltage controlled oscillators, surface mount oscillators, true hole oscillators, and high temperature oscillators.

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