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WM8904ECS/R Datasheet(PDF) 77 Page - Wolfson Microelectronics plc

Part # WM8904ECS/R
Description  Ultra Low Power CODEC for Portable Audio Applications
PDF  188 Pages
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Manufacturer  WOLFSON [Wolfson Microelectronics plc]
Direct Link  http://www.wolfsonmicro.com
Logo WOLFSON - Wolfson Microelectronics plc

WM8904ECS/R Datasheet(HTML) 77 Page - Wolfson Microelectronics plc

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Pre-Production
WM8904
w
PP, Rev 3.3, September 2012
77
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
R57 (39h)
Analogue
OUT1 Left
8
HPOUTL_MUTE
0
Left Headphone Output Mute
0 = Un-mute
1 = Mute
7
HPOUT_VU
0
Headphone Output Volume Update
Writing a 1 to this bit will update
HPOUTL and HPOUTR volumes
simultaneously.
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
R58 (3Ah)
Analogue
OUT1 Right
8
HPOUTR_MUTE
0
Right Headphone Output Mute
0 = Un-mute
1 = Mute
7
HPOUT_VU
0
Headphone Output Volume Update
Writing a 1 to this bit will update
HPOUTL and HPOUTR volumes
simultaneously.
6
HPOUTRZC
0
Right Headphone Output Zero Cross
Enable
0 = disabled
1 = enabled
5:0
HPOUTR_VOL
[5:0]
10_1101
Right Headphone Output Volume
000000 = -57dB
000001 = -56dB
(… 1dB steps)
111001 = 0dB
(… 1dB steps)
111110 = +5dB
111111 = +6dB
Table 45 Volume Control for HPOUTL and HPOUTR



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