Q 25,0-JXS21-9-10/15-T1-FU-WA-LF

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Q 25,0-JXS21-9-10/15-T1-FU-WA-LF Application Field and Working Principle

Crystal oscillators are components that convert electrical signals into oscillating signals. The application field of Q 25,0-JXS21-9-10/15-T1-FU-WA-LF crystal oscillator includes the fields of electronic clock, electronic watch, electronic air ticket, ATM machine, telephone, mobile phone and so on. Q 25,0-JXS21-9-10/15-T1-FU-WA-LF crystal oscillator has two basic parts: the static part and the dynamic part.

Static Part

The static part is mainly made of a crystal blank, which consists of a surround package and a crystal grain inside it. The internal structure and electric dimensions of the crystal blank determine the natural frequency of the crystal oscillator. The frequency of the oscillator varies according to the type of blank used. The main purpose of the static part is to determine the required frequency value of the oscillator.

Dynamic Part

The dynamic part is an electronic circuit which generates the output signal and feeds it back to the static part to maintain the frequency stability. There are three typical configurations: Pierce, Colpitts and Hartly. The Pierce design is the most commonly used one. It consists of an amplifier, a capacitor, a quartz crystal and two resistors. The feedback capacitor allows the input power to flow through the quartz crystal and back to the amplifier. The output signal’s frequency is determined by the resonance frequency of the quartz crystal. The quartz crystal determines the frequency of the crystal oscillator. When the output signal is fed back to the static part, it will adjust the frequency according to the dynamic part\'s feedback value. Q 25,0-JXS21-9-10/15-T1-FU-WA-LF crystal oscillators can be used in the range of 25MHz to 150MHz. The inductance can be adjusted from 9KHz to 15 MHz. The accuracy of the oscillation frequency is 0.0002 %. It has a frequency stability of 15ppm and a temperature stability of 0.2ppm .

Conclusion

Q 25,0-JXS21-9-10/15-T1-FU-WA-LF crystal oscillator is an electronic component that converts electrical signals into oscillating signals. It consists of two parts: the static part and the dynamic part. The static part consists of a quartz crystal, which is used to determine the frequency of the oscillator. The dynamic part consists of an amplifier, a capacitor, a quartz crystal and two resistors. When the output signal is fed back to the static part it will adjust the frequency. Q 25,0-JXS21-9-10/15-T1-FU-WA-LF crystal oscillator can operate in the frequency range of 25MHz to 150MHz, with a frequency accuracy of 0.0002 % and a frequency stability of 15ppm. It is widely used in electronic clocks, electronic watches, electronic ticketing machines, phone, mobile phones and so on.

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