基于SC切晶体的高准确度MCXO

A High Accuracy MCXO Based on SC-cut Crystal

针对温补晶振在某些场合的应用提出并实现了一种软件数据补偿的特殊微机补偿晶体振荡器 (MCXO)。不同于传统MCXO对振荡器进行压控补偿的原理 ,这种新型的 MCXO根据温度的变化通过计算机以数据的形式不断修正振荡器的输出频率的标称值 ,从而达到对振荡器补偿的目的。此外 ,新型 MCXO在温度传感和数据处理的方法上也都有所改进 ,因而 ,与传统的 MCXO相比 ,这种 MCXO结构简单 ,准确度高 ,具有很广的应用前景。

This paper presents and achieves a particular MCXO compensated by software for applications in some cases.Different from conventional MCXO,this MCXO corrects the value of the frequency output signal of the oscillator in form of data by computer when temperature changes.In addition,new MCXO has some improvements on temperature sensing and data processing.Compared to conventional MCXO,this MCXO is simple in structure and high in accuracy.Thus,it will be widely used in field of time and frequency.