FA-365 25.7815MB-D

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Crystals: FA-365 25.7815MB-D Application Field and Working Principle

Crystals are widely used in a variety of industries, providing power sources, time and frequency references, and data communication. Among them, FA-365 25.7815MB-D is one kind of crystal that has been widely used in radio communications and telecommunications. In this paper, the application field and working principle of FA-365 25.7815MB-D crystal are explained in detail.

Application Field

The FA-365 25.7815MB-D Crystal is a miniature 4-pin quartz resonator and is used for frequency control in telecommunications, office automation and audio-visual equipment. The crystal has a frequency range of 25.7815MHz and provides excellent frequency stability, temperature coefficient (TC) and environmental performance. Due to the characteristics of frequency stability and environmental performance, the FA-365 25.7815MB-D is popularly used in small radio receivers, mobile phones, access control, automotive electronics and remote-controlled devices.

Working Principle

A quartz crystal works based on an electrical circuit which involves an alternating current (AC) signal. An oscillator circuit is created where the crystal acts as an inductor adding electrical impedance. This creates an oscillating circuit with a precisely tuned frequency determined by the physical characteristics of the crystal and its size. The crystal is connected to the other components such as capacitors, resistors and transistors, which form a network of components that help to create an oscillation at the intended frequency. The oscillator circuit amplifies the oscillation which is then fed into another circuit, either an amplifier circuit or a mixer, which will be used in the overall system.

The FA-365 25.7815M-D Crystal has a built-in load capacitance of 15pF. This allows the crystal to operate with a stability of around +-30ppm over the allowance of temperatures, staying within a range of -10 to +55 degrees Celsius. This allows the crystal to work in most industrial temperature operating environments and in different systems that require temperature stability.

Conclusion

In conclusion, the FA-365 25.7815MB-D Crystal is a versatile and reliable crystal used in a variety of industries from radio communications and telecommunications. The crystal has a frequency range of 25.7815MHz and offers excellent frequency stability, temperature coefficient and environmental performance. The crystal can be used for frequency control in telecommunications, office automation, access control, automotive electronics and remote-controlled devices. Since it can operate with a stability of around +-30ppm over the allowance of temperatures, it has become a popular choice for many industries.

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