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1、我的意思是将模拟信号源通过耦合输入电容接地，排除信号源引入噪声的情况，看输出是否噪声仍很大。
2、默认的快速充电时间设定的耦合输入电容是1uF(The default value of the quick-charge timing is set for a coupling capacitor up to 1 µF.数据手册8.3.3 Input Channel Configurations部分)，您将耦合输入电容换为1uF，看声音是不是大一些？
