This question might be rather generic, but seems like I'm not able to find a proper answer out there.
Following is an active filter circuit from PCM4104 evaluation module, along with differential to single-ended output conversion:
Now, the amplifier board which I want this circuit to connect to has following diagram for BTL mode:
As you can see,
Vin channel 1 needs to be inverted, while
Vin channel 2 not.
Question: How can I adapt active filter circuit above to invert the phase for channel 1? Something tells me it's not enough to just flip the input connections of opamp, swapping + and -. Or should I really go for additional inverting buffer?