RC0_21RC0_12RC0_03VREF_2V54AVDD_REG5DVDD6DNC7VBIAS08VZERO09DNC10XTALI11XTALO12DGND13DVDD_REG_1V814CS#15SCLK16MOSI17MISO18GPIO019GPIO120GPIO221RESET#22DGND23DNC24DGND25IOVDD26AFE327AFE428AGND29AVDD30VBIAS_CAP31RCAL032RCAL133AFE134AFE235AIN3/BUF_VREF1V836AIN237AIN138AIN039AIN4/LPF040AVDD41AGND42VREF_1V843AGND_REF44SE045DE046CE047RE048EP49