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TMS320F28335: ADC模块

Part Number: TMS320F28335

请问28335的ADC模块中的Reference I/O Power是干嘛用的?ADC模块中为什么会有I/O Power,同样都是3.3V的电源,它与VDDA2的作用有什么不同?

  • 可以理解为,一个是为ADC模块供电的,一个是为ADC引脚供电的。但是确实不管是datasheet还是TRM,都没有对这两个电压做过多解释,可以认为这两个就是用来供电的电源。