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    求助:PAM8403DR-H 功放电路在连接WIFI时有噪音

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    • D
      dyd2022 LV 3 last edited by

      这个是功放电路的原理图:
      e57481c1-35db-4eae-abeb-fdef621baeb9-image.png
      功放电路和WIFI模块不挨着,但是功放电路会受WIFI的影响,WIFI工作时功放喇叭就会发出滋滋声,想请教各位大佬有什么消除的方法吗?

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      • chinazhangdj
        gouer LV 5 @dyd2022 last edited by

        @dyd2022 有没有可能是WIFI引入的电源噪声?SYS_5V加个电感隔离一下?或者两部分分开供电测试一下是电源噪声还是射频干扰?

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          dyd2022 LV 3 @chinazhangdj last edited by

          @chinazhangdj 我试试,感谢

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