What is a temperature-compensated crystal oscillator?The definition of a temperature-compensated crystal oscillator is to reversely change the original physical characteristics of the piezoelectric quartz crystal (the frequency changes in a cubic curve with temperature under the piezoelectric effect) through the peripheral circuit to make the change of the original frequency of the quartz crystal with temperature as small as possible. A quartz crystal oscillator is made by a compensation method. Беспроводной модем Лора With so many crystal oscillators on the market, why can temperature-compensated crystal oscillators survive in the era of high precision? The development trend of temperature compensated crystal oscillator:Accuracy, low power consumption, and miniaturization are the main research topics of temperature-compensated crystal oscillators.There are many difficulties in miniaturization and chip type, among which there are two main points: one is that miniaturization will make the frequency variable range of the quartz crystal oscillator smaller, making temperature compensation more difficult; In the connection operation since the welding temperature is much higher than the maximum allowable temperature of the temperature-compensated crystal oscillator, the frequency of the crystal oscillator will change. 10-6 or less. However, the improvement of the technical level of the temperature-compensated crystal oscillator has not reached the limit, and the innovative content and potential are still large. Why is the temperature-compensated crystal oscillator an important role in the era of micro-high precision?In wireless transmission applications, the wireless transparent transmission module takes small size, low power consumption, and low delay as important development indicators. The precision of the crystal oscillator is higher. After comparing the ordinary products without temperature-compensated crystal oscillators on the market, it is found that the transmission frequency of the module with the temperature-compensated crystal oscillator is more accurate, more stable, and has less distortion! промышленные IoT-терминалы And after adding the temperature-compensated crystal oscillator, the module can adapt to the working environment of -40~+85 degrees Celsius, so that the wireless transmission will not be affected in harsh environments.
