ATT1_CTRL1STBY12SW1_CTRL3GND4GND5SW2_CTRL6STBY27ATT2_CTRL8GND9RX2_OUT10GND11VDD12GND13VDD14GND15SW2_OUT16GND17SW2_IN18GND19NC20NC21GND22SW1_IN23GND24SW1_OUT25GND26VDD27GND28VDD29GND30RX1_OUT31GND32EP33