I am designing a Motor Control System using DRV8301 and TMS320F28069M. I am using
"F28069U_CONTROLLERCARD_V1.1.DSN " from TI as a reference. I have noticed that
NUP4201MR6T1G (Transient Voltge Supressor) and 2.2nF Caps are used on ADC_A0 thru ADC_A3 but not on ADC_A4 thru A7 and the same for ADC_B0 thru B3 but not B4 thru B7. Is a 2.2nF Cap and Transient Voltage Supressor necessay on ADC_A0 and ADC_B0 ? And why not on ADC_A4 or ADC_B4?
If both DRV8301 and 28069 are on the same PCB, can I eliminate the 2.2nF Cap and NUP4201MR6T1G?
Mehran