频率合成器低温工作环路失锁的分析及解决方法

Analysis and Solution of Loop Losing Lock of A Frequency Synthesizer at Low Temperature

本文简述了某型产品的频率合成器在低温（-45℃）环境下环路失锁，无法正常工作的现祭。现通过优化电路中某一个缓冲放大器的参数，减小信号失真，从而解决此故障。

This paper briefly describes the loop losing lock of a frequency synthesizer at low tempera- ture （ -45 ℃ ）. The problem is solved by optimizing prarameters of a buffer amplifier in the circuit and minimizing the signal distortion.