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AFE4400 晶体不起振



在晶体的pin上无波形。进行如下的测量:

 

1、  测量电源pin的电压都正确;

2、  测量Pin7的电压为0.97V。(注:规格书上未说明)

3、  测量Pin9的电压为0.7V。(注:同上)

4、  测量Pin37和Pin38的电压为0.65和0.5V,且无波形;

5、  测量pin30上无波形;