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WM8734EDS Datasheet(PDF) 32 Page - List of Unclassifed Manufacturers

Part # WM8734EDS
Description  STEREO AUDIO CODEC
PDF  42 Pages
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Manufacturer  ETC [List of Unclassifed Manufacturers]
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WM8734EDS Datasheet(HTML) 32 Page - List of Unclassifed Manufacturers

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WM8734
Advanced Information
w
AI Rev 2.2 November 2001
32
REGISTER MAP
The complete register map is shown in Table 21. The detailed description can be found in the
relevant text of the device description. There are 8 registers with 9 bits per register. These can be
controlled using either the 2 wire or 3 wire MPU interface.
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
4:0
LINVOL[4:0]
10111
( 0dB )
Left Channel Line Input Volume
Control
11111 = +12dB . . 1.5dB steps down
to 00000 = -34.5dB
7
LINMUTE
1
Left Channel Line Input Mute to ADC
1 = Enable Mute
0 = Disable Mute
0000000
Left Line In
8
LRINBOTH
0
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
4:0
RINVOL[4:0]
10111
( 0dB )
Right Channel Line Input Volume
Control
11111 = +12dB . .1.5dB steps down
to 00000 = -34.5dB
7
RINMUTE
1
Right Channel Line Input Mute to
ADC
1 = Enable Mute
0 = Disable Mute
0000001
Right Line In
8
RLINBOTH
0
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
0000100
Analogue Audio
Path Control
4
DACSEL
0
DAC Select
1 =Select DAC
0 = Don’t select DAC
0
ADCHPD
0
ADC High Pass Filter Enable
1 = Enable High Pass Filter
0 = Disable High Pass Filter
2:1
DEEMP[1:0]
00
De-emphasis Control
11 = 48KHz
10 = 44.1KHz
01 = 32KHz
00 = Disable
3
DACMU
1
DAC Soft Mute Control
1 = Enable soft mute
0 = Disable soft mute
0000101
Digital Audio
Path Control
4
HPOR
0
Store dc offset when High Pass Filter
disabled
1 = store offset
0 = clear offset



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