ADC_EN_VREF位置位后 TOP_TON 就输出2.5v,TEST_MUX_DAC_EN位清零不会”Connects DAC output to TOP/TON pins“,仍然是是2.5V.为什么?
资料说:TEST_MUX_P_EN位清零 Connects PGAIN output to TOP/TON pins
TEST_MUX_T_EN 位清零 Connects TGAIN output to TOP/TON pins
TEST_MUX_DAC_EN 位清零 Connects DAC output to TOP/TON pins
三位同时清零都连到TOP/TON pins吗?不互锁吗?