For the AVDD supply, the datasheet shows it can be supplied by either 1.8V or 3.3V. Is one preferred over the other? When used with digital mic voltage levels from 0 to 1.8V, is there any performance difference based on the AVDD level?
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For the AVDD supply, the datasheet shows it can be supplied by either 1.8V or 3.3V. Is one preferred over the other? When used with digital mic voltage levels from 0 to 1.8V, is there any performance difference based on the AVDD level?
Hi David,
No there is no preference of one over the other. There is no performance difference between the two, other than the current draw is different (see Section 6.3). Audio performance is the same.
Best regards,
Jeff McPherson