Analog mux input allows input selection either from IN1P or IN1M into the ADC path. The device needs to be configured in its respective mux setting in register B0_P0_R80 (0x50) ADC_CH1_INSRC. In this configuration, either IN1P or IN1M be the input to the ADC signal chain, they are independent source. In this example, IN1P is a 1KHz tone at -1dBrG and IN1M is a 1250Hz tone at -1dBrG; 0dBrG = 1Vrms Single-Ended Fullscale.

Figure 2-17 IN1P Mux Input Register Setting

Figure 2-18 IN1M Mux Input Register Setting

Figure 2-19 IN1P and IN1M Mux Input at -1dBrG (0 dBrG = 1Vrms)

The output of the respective setting shows the desired signal and the suppression of the other input signal.

Figure 2-20 Output with IN1P Mux Input Configured

Figure 2-21 Output with IN1M Mux Input Configured