I was wanting to connect a 100W mono audio amplifier to the DAC of my Arduino. The amplifier uses a TPA3116D2 chip (http://www.ti.com/lit/ds/symlink/tpa3116d2.pdf) which has a differential input.
The data sheet explains connecting the two thus:
To use the TPA31xxD2 family with a single-ended source, ac ground the negative input through a capacitor equal in value to the input capacitor on positive and apply the audio source to either input. In a single-ended input application, the unused input should be ac grounded at the audio source instead of at the device input for best noise performance.
This isn’t very clear to me.
Is the attached circuit diagram what they mean?