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最近用LM4811做一款耳机直接推32欧喇叭，电压输入3.3V输入正常，但是偏置电压有时变高有时又变低是什么情况？输出不正常声音断断续续的怎么解决？求请帮忙，欢迎各位大虾来砸贴，谢谢！
有的板子是工作一段时间之后才有，如果出现了这种情况不管怎么断电再上电都会出现了
