Temperature Compensated Crystal Oscillator Improves Temperature Characteristics

摘要

The present invention relates to a temperature-compensated crystal oscillator having improved temperature characteristics. In particular, by implementing temperature compensation of a crystal oscillator with a plurality of fixed capacitors, it is possible to improve the temperature characteristics, extend the service life, And a temperature-compensated crystal oscillator improved in temperature characteristics.;In the present invention, a plurality of fixed capacitors, which are inexpensive and have poor aging characteristics and which are inexpensive and excellent in aging characteristics, are used instead of the trimmer capacitor. By using the switches for selecting the plurality of capacitors, It is possible to provide a temperature-compensated crystal oscillator which is easy to manufacture.