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TLV320ADC5140音频耦合电容，极性位置摆放有要求？是正极靠近ADC靠近引脚？
您好，
我理解这里不能使用极性电容，AC耦合的话，模拟输入管脚芯片内部应该集成了偏置电压，才能将信号保持在输入级PGA的输入范围。而有极性电容正极必须接高电位端，负极必须接低电位端。输入信号是交流信号，相对偏置电压是上下摆动的。
