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利用ARM的串口如何控制PGA308的放大?有什么具体的例子。十分感谢了。
这样提问太笼统了. 哪款ARM, 缺乏针对性?
其实根据 PGA308 的手册, 并不困难
楼主您好,你可以参考附件中的电路做设计: