Part Number: TMS320F280025 Tool/software: Customer has some question for ADC spec in datasheet: 1, What is the working principle for reference conversion of VREFHI and VREFLO PINs? Can we give a logical block diagram to illustrate this? 2, do we have characteristic curve of Power Up Time vs Temperature on Internal Reference mode? The maximum value for high operating temperature is given in the Datasheet, is it the same value above the low temperature? 3, Whether the capacitor on VREFHI pin will affect Power Up Time in Internal Reference mode? Can we give a diagram of the capacitive capacity size vs the Power Up Time? The minimum capacity of 2.2uF is given in Datasheet, how about the maximum value, will the capacitance of excess capacity have an effect when selecting capacitance? 4. Does the other C2K device parameters for VREFHI and VREFLO are same?
↧