42.5 Digital Front-end

The Digital Front-End (DFE) connects to the analog front-end on one side and the Bluetooth or Zigbee baseband on the other side. In the receive path, the I/Q data from the ADC are filtered and down-converted. Automatic gain control is also implemented in the DFE. In the transmit path, the Zigbee power control is done in the DFE.