I am using single-ended line input to the MAX98090/MAX98091 and seeing +6dB higher gain than expected. What might be happening?
Internally, all analog signal paths are differential. As a result, single-ended inputs have a built in baseline gain of +6dB (from the single-ended to differential conversion) while differential inputs have 0dB of built in gain. This is stated on page 94 of the MAX98090 datasheet (Rev 2 8/14) and page 96 of the MAX98091 datasheet (Rev 2 11/14).
