温补晶振属于有源晶振，它是在普通晶振的基础上，加了一个温度补偿网络，从信号特征上它主要分为模拟温补晶振和数字温补晶振两种，也可从补偿方式分为直接温度补偿晶体振荡器和间接温度补偿晶体振荡器。
中文全称：温度补偿晶体振荡器
中文简称：温补晶振
英文全称： Temperature Compensated Crystal Oscillators
英文简称： TCXO
TCXO is the Crystal Oscillator with good temperature characteristics of Crystal unit and opposite temperature characteristics circuit (temperature compensation circuit) across a wide temperature range.
- TCXO温补晶振应用领域
众所周知，普通晶振现身于诸多电子产品和通信设备之上，如果应用到温补晶振的话，一般对频率稳定度要求会相当高，比如5G通信设备。若要用到压控温补晶振，说明该设备使用的的时间会比较久，不是一般消费类电子产品。
- 温补晶振常用频率
10MHz、12.288MHz、12.8MHz、16.32MHz、16.367667MHz、16.368MHz、16.369MHz、16.8MHz、20MHz、24MHz、28.80MHz、30.72MHz、50MHz、52MHz等
- 温补晶振常用封装尺寸
2016、2520、3225、5032
- 温补晶振常用频率精度
±0.2ppm、±0.5ppm、±1.0ppm、±1.5ppm、±2.0ppm等。
温补晶振是否需要接电源？
是的，接上电源和地就有频率输出。温补晶振内置温度补偿电路,属有源晶振,常用额定输入电压有1.8V、2.8V、3.3V、5V等。
What is a voltage controlled temperature compensated crystal oscillator?
Temperature Compensated Crystal Oscillators (TCXOs) deliver excellent temperature characteristics combined with low power consumption and fast warmup. Voltage Controlled Temperature Compensated Crystal Oscillators (VC-TCXOs) combine the same excellent temperature characteristics, low power consumption and fast warmup with a voltage control function to allow precise tuning of the output frequency after PCB assembly.
Voltage control can also be used during operational life, to compensate for any effects of aging as well as offering the ability to pull back to nominal frequency where there is a change of circuit conditions. TCXOs and VC-TCXOs are used where the stability of a standard Crystal Clock Oscillator is insufficient.
