The AFE embeds programmable gain amplifiers that must be enabled prior to any conversion. The bits PGA0EN and PGA1EN in the Analog Control register (AFEC_ACR) must be set.
Figure 1. AFE Analog Cell Block
Diagram
The AFE embeds programmable gain amplifiers that must be enabled prior to any conversion. The bits PGA0EN and PGA1EN in the Analog Control register (AFEC_ACR) must be set.