wm8918 Wolfson Microelectronics plc, wm8918 Datasheet - Page 136

• Manufacturer Part Number: wm8918
• Description: Ultra Low Power Dac For Portable Audio Applications
• Manufacturer: Wolfson Microelectronics plc

WM8918
Register 18h Audio Interface 0
w
REGISTER
ADDRESS
Interface 0
R24 (18h)
Audio
10:9
BIT
12
11
8
7
6
5
4
3
2
1
0
DAC_BOOST[1
AIFRXR_DATI
AIFRX_COMP
AIFRX_COMP
AIFRXL_DATI
AIFRXR_SRC
AIFTX_COMP
AIFTX_COMP
AIFTXR_SRC
AIFRXL_SRC
AIFTXL_SRC
LOOPBACK
LABEL
MODE
MODE
NV
NV
:0]
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 (DMIC data output is directly
input to DAC data input)
Left Digital Audio interface source
0 = Left DMIC data is output on left channel
1 = Right DMIC data is output on left channel
Right Digital Audio interface source
0 = Left DMIC data is output on right channel
1 = Right DMIC 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
AIFTX Companding Enable
0 = Disabled
1 = Enabled
AIFTX Companding Type
0 = μ-law
1 = A-law
AIFRX Companding Enable
0 = Disabled
1 = Enabled
AIFRX Companding Type
0 = μ-law
1 = A-law
DESCRIPTION
PD, Rev 4.0, September 2010
REFER TO
Production Data
136