I am working with the ADAU-1452 evaluation board and i am taking my input signals through the spdif input. I want to create a 90 degree phase shift between my two input channels. I tried using the Hilbert transform but i could not make it work. If i am not wrong then the hilbert transform is only working with the time domain (analog) signals, not with digital signals
So can you please give me an idea how can i implement a 90 degree phase shift between my two input channels?