DAC to Mono Speaker

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

Ouput:

High Power Outputs
    - Differential speaker outputs
    - LDAC and RDAC to HPLOUT/COM (summed together)
    - Mixer gain = 0dB
    - Output amplifier gain = 0dB

Register configuration:

w 30 07 8A
w 30 25 C0
w 30 29 02
w 30 2B 00
w 30 0E C0
w 30 2F 80
w 30 32 80
w 30 33 0D
