ADAU1701 i2s Output from 2 Channel Input


I am new with the SigmaDSP, but I am working on a project with a ADAU1701. The ADAU1701 getting a 2 Channel analog Input and for the project I need a i2s Output where the two channels (L/R) are transmitted over the i2c protocol.

In my simple Schematic, only the left channel is transmitted (obviously Slight smile).

In some examples, there used the "crossover" to split from i2s-Input to L/R Channel. Is there something similar, to create the L/R Data for the i2s output?

Thanks and greeting from Germany!