I2S over USB with AK4396 DAC

-            AK4396 can playback DSD and PCM audio data, as Fs from 44.1 kHz to
             192kHz and DSD64 according to its’ datasheet; Proprietary solution for
              352.8 kHz, 384 kHz and DSD128
-            Configuration from PCM to DSD data format and back, is done by PIC1823
             microcontroller, which 0.5sec after his work is done, is putted on sleep mode
             not to insert disturbances                      
-            Indicates input sampling rates of PCM and DSD
-            AK4396 accepts 16-, 20-, and 24-bit PCM audio data