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请教下DAC8771的引脚第23脚VPOS_IN,手册中WARNING Permanent device damage may occur if externally supplying VPOS or VNEG while the internal buck-boost supply is enabled.启动内部buck-boost supply供正负电的时再给VPOS外接电压会损坏器件，是不是只要上电内部buck-boost supply就会启动？怎么关闭内部buck-boost避免外接电压损坏器件呢
