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TDA4VM-Q1: TDA4的SD卡1.8V/3.3V电压选择问题

Part Number: TDA4VM-Q1


Hi,E2E

     请教个问题,关于TDA4外挂的SD卡供电电压,TI的PMIC可以做到1.8V/3.3V切换,想问一下PMIC具体是怎么切换的,是检测到什么信号之后就会自动切换么