Hi Takumi-san, As you can refer from the AFE5816 datasheet, it is recommended to set the AVDD_3P15 voltage nominally at 3.15V and design the power rail to have variation of less than +/- 150mV. Having a higher > 3.3 V supply will lead to functional failure of CW mode. Therefore max limit of supply is kept to 3.3 V.
↧