What is a TCXO?

What is a temperature compensated crystal oscillator?
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- everything RF

Apr 10, 2018

A TCXO or a Temperature Compensated Crystal Oscillator is a crystal oscillator specially designed to operate in high-temperature environments. The oscillation frequency of a regular crystal oscillator changes/fluctuates as the temperature rises, resulting in an unstable oscillation frequency. TCXO's provide a stable oscillation frequency in high-temperature environments. To do so, they use a temperature compensation network which stabilizes the oscillation frequency at higher temperatures.

Another type of oscillator that can be used in high-temperature environments is an OCXO - Click here to learn about the differences between a TCXO and OCXO.