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Hello,
we are designing an inverter based on TMS320F28388D DSP.
Now the question about power sequencing needs to be solved. Everything is clear to us, up to this point.
During the power-up sequence, I will have VDDIO, VDD, VDDA powered correctly according the instructions in datasheet, but reference for ADC (VREFHI) can come after the input signal (AIN).
Is this a problem?
I'm expecting, that it should be not a big deal, and I will receive some mismatch data from ADC till the correct reference will be present.
BR,
Milan.
