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这款没有原理图或者布线可参考。
或者您可以选择更高输出功率的TPA3116D2,这款有demo板,提供了原理图,以及gerber文件,帮助您开发。
http://www.ti.com/tool/TPA3116D2EVM?keyMatch=TPA3116D2&tisearch=Search-EN-Everything