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WM8903 Datasheet(PDF) 153 Page - Wolfson Microelectronics plc

Part # WM8903
Description  Ultra Low Power CODEC for Portable Audio Applications
PDF  178 Pages
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Manufacturer  WOLFSON [Wolfson Microelectronics plc]
Direct Link  http://www.wolfsonmicro.com
Logo WOLFSON - Wolfson Microelectronics plc

WM8903 Datasheet(HTML) 153 Page - Wolfson Microelectronics plc

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Production Data
WM8903
w
PD, Rev 4.5, June 2012
153
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
1
BYPASSL_TO_MIXSPKR
0
Left Analogue Input to Right Spkr Mixer
Enable
0 = disabled
1 = enabled
0
BYPASSR_TO_MIXSPKR
0
Right Analogue Input to Right Spkr Mixer
Enable
0 = disabled
1 = enabled
Register 36h Analogue Spk Mix Right 0
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
R55 (37h)
Analogue
Spk Mix
Right 1
3
DACL_MIXSPKR_VOL
0
Left DAC to Right Spkr Mixer volume control
0 = 0dB
1 = -6dB
2
DACR_MIXSPKR_VOL
0
Right DAC to Right Spkr Mixer volume
control
0 = 0dB
1 = -6dB
1
BYPASSL_MIXSPKR_VOL
0
Left Analogue Input to Right Spkr Mixer
volume control
0 = 0dB
1 = -6dB
0
BYPASSR_MIXSPKR_VOL
0
Right Analogue Input to Right Spkr Mixer
volume control
0 = 0dB
1 = -6dB
Register 37h Analogue Spk Mix Right 1
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
R57 (39h)
Analogue
OUT1 Left
8
HPL_MUTE
0
Left Headphone Output Mute
0 = Un-mute
1 = Mute
7
HPOUTVU
0
Headphone Output Volume Update
Writing a 1 to this bit will update HPOUTL and
HPOUTR volumes simultaneously.
(Write-Only Register)
6
HPOUTLZC
0
Left Headphone Output Zero Cross Enable
0 = disabled
1 = enabled
5:0
HPOUTL_VOL
[5:0]
10_1101
Left Headphone Output Volume
000000 = -57dB
000001 = -56dB
(… 1dB steps)
111001 = 0dB
(… 1dB steps)
111110 = +5dB
111111 = +6dB
Register 39h Analogue OUT1 Left



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