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The ADC VREF Switch (SW7) contains two single pole double throw switches that control the input for the
ADC VREF inputs of the AM263x SoC.
ADC VREF Switch Position
Pin 1-2
Pin 2-3
Pin 4-5
Pin 5-6
SPRUJ09C – MARCH 2022 – REVISED FEBRUARY 2023
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Table 4-21. ADC VREF Switch
Reference Selection
OPEN - Allow for reference to be AM263x on-die LDO reference
Output of VREF Switch
OPEN - Allow for reference to be AM263x on-die LDO reference
Output of VREF Switch
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Hardware Description
AM263x Control Card Hardware User's Guide
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