DAC to Line Outputs

Digital audio setup for operation with defaults of USB-MODEVM

Input:
DAC
    - left data to LDAC and right data to RDAC
    - volume control = 0dB
    - Connected to outputs via mixer mode

Line Outputs (differential signals)
    - Left and Right Line outputs
    - Mono Line outputs (summed Left and Right channels)
    - LDAC to Left Line Output and Mono Line Output
    - RDAC to Right Line output and Mono Line Output
    - Mixer gain = 0dB
    - Line Output amplifier gain = 0dB

Regsiter configuration:

w 30 07 8A
w 30 25 C0
w 30 29 02
w 30 2B 00
w 30 52 80
w 30 5C 80
w 30 4B 80
w 30 4E 80
w 30 56 09
w 30 5D 09
w 30 4F 09
