【摘要】 应用新的温度补偿方法研制了100.450MHz五次泛音温度补偿晶体振荡器,该振荡器由450kHz陶瓷振荡器,100MHz五次泛音晶体振荡器,混频器,晶体滤波器组成。450kHz陶瓷振荡器的输出频率与100MHz晶体振荡器的输出频率混频,滤波,取其和频。直接利用450kHz陶瓷振荡器输出频率对100MHz晶体振荡器进行温度补偿。实验结果表明,在0~70℃该振荡器的频率-温度稳定度<±7×10-7,初步测量相位噪声为-119dBc@1kHz。更多还原

【Abstract】 100.450 MHz 5th overtone temperature compensated crystal oscillator is developed. The oscillator is made up of 450 kHz ceramic oscillator, 100 MHz 5th overtone crystal oscillator, mixer and crystal filter. The output frequency of ceramic oscillator is mixed with that of crystal oscillator, and then the sum frequency is got by crystal filter. In this way, the 100 MHz crystal oscillator is compensated directly by the 450 kHz ceramic oscillator. Experiment results show that at 0～70℃ the frequency-temperature stability achieve <±7×10 -7, and its phase noise is -119 dBc@1 kHz.更多还原