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LME49830不工作



工程师们,我们做了一个LME49830推场效应管的板子,不知道怎么回事,不工作。

发现几个问题:电源电压+-63V。后级电源+-60V。

1、MUTE 端口电压为0.7V;

2、未加入信号时,14脚(Nout)电压为4.7V,13脚(Pout)电压为1.37V;

3、加入5Vpp的信号后,14脚(Nout)输出电压为4.4V,13脚(Pout)电压为1.1V;

请专家麻烦解答一下,谢谢!