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TPA3110D2保护SD脚拉低,无输出



您好!我们一款新带蓝牙2.1的板子,开机上电后SD电平马上拉低保护,看了论坛很多贴也在AVCC串了磁珠,现在不知道布线那里出问题了,希望能得到你们的帮助,谢谢!附件里是原理图和PCB文件

TPA3110D2.SCH