Signal power is coming out >2dB low when I use an Over-sample Rate (OSR) of 800. When I switch to an OSR of 128, without making any other changes, the signal comes out within 0.3 dB of expected. I have been unable to find any references that the OSR affects the gain, only the noise floor.
Additional information: The signal source is a sine wave and has been confirmed using a calibrated unit as 915 Hz, -24.63 dBVrms. Multiple runs have confirmed >2dB loss. AD gain is set to 1, ICLK_DIV and CLK_DIV are 2 for both scenarios. Power level calculations have been confirmed through various tests (bin centered FFT, mag squared, hand calculations, etc).
