wm8903 Wolfson Microelectronics plc, wm8903 Datasheet - Page 123

• Manufacturer Part Number: wm8903
• Description: Ultra Low Power Codec For Portable Audio Applications
• Manufacturer: Wolfson Microelectronics plc

Pre-Production
R24 (18h)
Audio
Interface 0
Register 18h Audio Interface 0
w
REGISTER
ADDRESS
10:9
BIT
12
11
8
7
6
5
4
3
2
1
0
ADC_COMPMODE
DAC_COMPMODE
DAC_BOOST[1:0]
DACR_DATINV
AIFADCR_SRC
AIFDACR_SRC
DACL_DATINV
AIFADCL_SRC
AIFDACL_SRC
ADC_COMP
DAC_COMP
LOOPBACK
LABEL
DEFAULT
00
0
0
0
0
1
0
1
0
0
0
0
Left DAC Invert
0 = Left DAC output not inverted
1 = Left DAC output inverted
Right DAC Invert
0 = Right DAC output not inverted
1 = Right DAC output inverted
DAC Digital Input Volume Boost
00 = 0dB
01 = +6dB (Input data must not exceed -6dBFS)
10 = +12dB (Input data must not exceed -12dBFS)
11 = +18dB (Input data must not exceed -18dBFS)
Digital Loopback Function
0 = No loopback
1 = Loopback enabled (ADC data output is directly
input to DAC data input)
Left Digital Audio channel source
0 = Left ADC data is output on left channel
1 = Right ADC data is output on left channel
Right Digital Audio channel source
0 = Left ADC data is output on right channel
1 = Right ADC data is output on right channel
Left DAC Data Source Select
0 = Left DAC outputs left channel data
1 = Left DAC outputs right channel data
Right DAC Data Source Select
0 = Right DAC outputs left channel data
1 = Right DAC outputs right channel data
ADC Companding Enable
0 = disabled
1 = enabled
ADC Companding Type
0 = μ-law
1 = A-law
DAC Companding Enable
0 = disabled
1 = enabled
DAC Companding Type
0 = μ-law
1 = A-law
DESCRIPTION
PP, Rev 3.1, August 2009
WM8903
123