TLV320AIC3204: Schematic review

# Software Reset
###############################################
#
# Select Page 0
w 30 00 00
#
# Initialize the device through software reset
w 30 01 01
#
###############################################
# Clock Settings
# ---------------------------------------------
# The codec receives: BCLK = 2.048 MHz,
# , WCLK = 8kHz
###############################################
#
# Select Page 0
w 30 00 00
w 30 05 23
w 30 04 04
w 30 04 07
w 30 05 A3
w 30 0B 86
w 30 0C 82
w 30 12 86
w 30 13 82
w 30 1C 01
w 30 1B 40

#20141209 Add PLL setting for clock
#20141209 PCM=DSP mode, shift 1 bit
#20141209 NDAC = 6, MDAC = 2,DOSR/AOSR=128

###############################################
# Signal Processing Settings
###############################################
#
# Select Page 0
w 30 00 00
#
# Set the ADC Mode to PRB_P1
w 30 3d 01
#
###############################################

# Initialize Codec
###############################################
#
# Select Page 1
w 30 00 01
#
# Disable weak AVDD in presence of external
# AVDD supply
w 30 01 08
#
# Enable internal LDO
w 30 02 01
#
# Select ADC PTM_R4
w 30 3d 00
#
# Set the input powerup time to 3.1ms (for ADC)
w 30 47 32
#
# Set the REF charging time to 40ms
w 30 7b 01
#
###############################################

###############################################
# Recording Setup
###############################################
#
# Select Page 1
w 30 00 01
#
w 30 33 60
# Route IN1L to LEFT_P with 20K input impedance
# Route IN1R to RIGHT_P with 20K input impedance_0704
w 30 34 82
#
# Route Common Mode to LEFT_M with impedance of 20K
w 30 36 80
#
# Route IN1R to RIGHT_P with input impedance of 20K
w 30 37 80
#
# Route Common Mode to RIGHT_M with impedance of 20K
w 30 39 80
#
# Unmute Left MICPGA, Gain selection of 6dB to make channel gain 0dB
# Register of 42dB with input impedance of 20K => Channel Gain of 0dB
w 30 3b 54
#
# Unmute Right MICPGA, Gain selection of 6dB to make channel gain 0dB
# Register of 42dB with input impedance of 20K => Channel Gain of 0dB
w 30 3c 54
#
# Select Page 0
w 30 00 00
#
# Power up LADC/RADC
w 30 51 c0
#
# Unmute LADC/RADC
w 30 52 00
# 20121127 Add ADC volume control to 12dB
# 20121128 Change ADC volume to 20dB
w 30 53 28
w 30 54 28

#20130110 Add AGC Gain setting Target gain= -5.5dB,Noise Threshold= -90dB,MAx gain=42dB
w 30 56 80
w 30 57 3E
w 30 58 42 #20150306 change AGC max gain from 42dB to 33dB
w 30 5E 80
w 30 5F 3E
w 30 60 54


###############################################
# High Performance Stereo Playback
# ---------------------------------------------
# PowerTune mode PTM_P3 is used for high
# performance 16-bit audio. For PTM_P4,
# an external audio interface that provides
# 20-bit audio is required.
#
# For normal USB Audio, no hardware change
# is required.
#
# If using an external interface, SW2.4 and
# SW2.5 of the USB-ModEVM must be set to
# HI and clocks can be connected to J14 of
# the USB-ModEVM.
#
# Audio is routed to both headphone and
# line outputs.
# Signal Processing Settings
###############################################
#
# Select Page 0
w 30 00 00
#
# Set the DAC Mode to PRB_P8
w 30 3c 08
#
###############################################
# Playback Setup
###############################################
#
# Select Page 1
w 30 00 01
#
# De-pop
w 30 14 25
#
# Route LDAC/RDAC to HPL/HPR
w 30 0c 08 08
#
# Route LDAC/RDAC to LOL/LOR
w 30 0e 08 08
#
# Power up HPL/HPR and LOL/LOR drivers
w 30 09 3C
#
# Unmute HPL/HPR driver
w 30 10 10 #20150306 Add Gain to 16dB Analog volume
w 30 11 10 #20150306 Add Gain to 16dB Analog volume
#
# Unmute LOL/LOR driver, 0dB Gain
w 30 12 00 
w 30 13 00
#
# Select Page 0
w 30 00 00
#
# DAC => DAC to 0dB
w 30 41 00 #20150306 Add DAC gain to 0dB Digital volume
w 30 42 00 #20150306 Add DAC gain to 0dB Digital volume
#
# Power up LDAC/RDAC
w 30 3f d6
#
# Unmute LDAC/RDAC
w 30 40 00