Although there are many types of crystal oscillators, the basic types are very clear, so what basic methods need to be used when selecting classic crystal oscillators? Below, Xiaobian for everyone to summarize.



Crystal vibration has been widely used in military and civil communication radio, microwave communication equipment, programmed telephone switch, radio comprehensive tester, BP machine, mobile phone transmitter, high-grade frequency counter, GPS, satellite communication, remote control mobile equipment and so on. And there are different packages, electrical performance specifications also present a variety of.



Generally speaking, the types of crystal oscillators include voltage controlled crystal oscillators, temperature compensated crystal oscillators, constant temperature crystal oscillators, and digital compensated crystal oscillators, and different types of crystal oscillators have their own characteristics.



If the equipment is out of the box, then it is recommended to choose the thermal crystal oscillator, if the stability is required above 0.5ppm, you need to choose the digital thermal crystal oscillator. The simulated temperature replenished crystal oscillator is more suitable for the needs of stability requirements between 5ppm and 0.5ppm. VCXO is more suitable for products with stability requirements below 5ppm. That is, it does not have to be out of the box, if the signal stability is required to exceed 0.1ppm, then you can choose OCXO.



The above is about the selection of several crystal vibration can refer to the method, in general, or need to combine their actual needs, choose quality assurance products, this is the most important.