Crystal oscillator is widely used in military, civil communications radio, microwave communications equipment, program-controlled telephone switches, radio tester, BP machine, mobile phone transmitter, high-end frequency counter, GPS, satellite communications, remote control mobile devices. It has a variety of packages, characterized by a wide range of electrical performance specifications. There are several different types: Voltage Controlled Crystal Oscillator (VCXO), Temperature Compensated Crystal Oscillator (TCXO), Crystal Oscillator (OCXO), and Digital Crystal Oscillator (MCXO or DTCXO) for each type Have their own unique performance.
If you need to make the device ready for use, you must use voltage controlled crystal oscillators (VCXO) or temperature compensated crystal, if the stability requirements of more than 0.5ppm, you need to select digital temperature compensated crystal (MCXO). Simulated temperature compensated crystal oscillator is suitable for stability requirements in the 5ppm ~ 0.5ppm demand. VCXO is only suitable for products with a stability requirement below 5ppm. In environments that do not require out-of-the-box operation, oven controlled crystal oscillator (OCXO) is an option if signal stability needs to exceed 0.1ppm.
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