SLASE23E January 2015 – August 2018 MSP430FR6820 , MSP430FR6822 , MSP430FR68221 , MSP430FR6870 , MSP430FR6872 , MSP430FR68721 , MSP430FR6920 , MSP430FR6922 , MSP430FR69221 , MSP430FR6970 , MSP430FR6972 , MSP430FR69721
Components that are shown in the partial schematic (see Figure 7-5) should be placed as close as possible to the respective device pins. Avoid long traces, because they add additional parasitic capacitance, inductance, and resistance on the signal.
Avoid routing analog input signals close to a high-frequency pin (for example, a high-frequency PWM), because the high-frequency switching can be coupled into the analog signal.
If differential mode is used for the ADC12_B, the analog differential input signals must be routed close together to minimize the effect of noise on the resulting signal.