WM8731 Wolfson Microelectronics Ltd., WM8731 Datasheet - Page 47

• Manufacturer Part Number: WM8731
• Description: WM8731 : Low Power Audio Codec With Integrated Headphone Driver
• Manufacturer: Wolfson Microelectronics Ltd.

WM8731
0000000
Left Line In
0000001
Right Line In
0000010
Left Headphone
Out
REGISTER
ADDRESS
4:0
7
8
4:0
7
8
6:0
7
8
BIT
LINVOL[4:0]
LINMUTE
LRINBOTH
RINVOL[4:0]
RINMUTE
RLINBOTH
LHPVOL
[6:0]
LZCEN
LRHPBOTH
LABEL
10111
( 0dB )
1
0
10111
( 0dB )
1
0
1111001
( 0dB )
0
0
DEFAULT
Left Channel Line Input Volume
Control
11111 = +12dB . . 1.5dB steps down
to 00000 = -34.5dB
Left Channel Line Input Mute to ADC
1 = Enable Mute
0 = Disable Mute
Left to Right Channel Line Input
Volume and Mute Data Load Control
1 = Enable Simultaneous Load of
LINVOL[4:0] and LINMUTE to
RINVOL[4:0] and RINMUTE
0 = Disable Simultaneous Load
Right Channel Line Input Volume
Control
11111 = +12dB . .1.5dB steps down
to 00000 = -34.5dB
Right Channel Line Input Mute to
ADC
1 = Enable Mute
0 = Disable Mute
Right to Left Channel Line Input
Volume and Mute Data Load Control
1 = Enable Simultaneous Load of
RINVOL[4:0] and RINMUTE to
LINVOL[4:0] and LINMUTE
0 = Disable Simultaneous Load
Left Channel Headphone Output
Volume Control
1111111 = +6dB
. . 1dB steps down to
0110000 = -73dB
0000000 to 0101111 = MUTE
Left Channel Zero Cross detect
Enable
1 = Enable
0 = Disable
Left to Right Channel Headphone
Volume, Mute and Zero Cross Data
Load Control
1 = Enable Simultaneous Load of
LHPVOL[6:0] and LZCEN to
RHPVOL[6:0] and RZCEN
0 = Disable Simultaneous Load
DESCRIPTION
AI Rev 2.3 August 2001
Advanced Information
47