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您好,因为内部LDO输出电压VCCOUT是给内部transceiver 供电的,所以我们可以通过bypass 内部LDO的方法,从而shutdown 内部transceiver。
那么我们可以不给Vsup上电,只给VIO上电。但这样的话transceiver shutdown应该是没有输出的。 可以实际测试验证下。