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OPA237的应用问题;主要是把MIC信号放大,但是放大后的信号效果不理想,有改善的方法吗?急急!!!!

主要是把MIC信号放大,但是放大后的信号效果不理想,有改善的方法吗?急急!!!!我的邮箱是liaotingkang@163.com