wm8918 Wolfson Microelectronics plc, wm8918 Datasheet - Page 69
wm8918
Manufacturer Part Number
wm8918
Description
Ultra Low Power Dac For Portable Audio Applications
Manufacturer
Wolfson Microelectronics plc
Datasheet
1.WM8918.pdf
(175 pages)
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Production Data
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Table 43 Volume Control for HPOUTL and HPOUTR
R57 (39h)
Analogue
OUT1 Left
R58 (3Ah)
Analogue
OUT1 Right
REGISTER
ADDRESS
BIT
5:0
5:0
8
7
6
8
7
6
HPOUTR_MUTE
HPOUTL_MUTE
HPOUTR_VOL
HPOUTL_VOL
HPOUTRZC
HPOUT_VU
HPOUTLZC
HPOUT_VU
LABEL
[5:0]
[5:0]
DEFAULT
10_1101
10_1101
0
0
0
0
0
0
Left Headphone Output Mute
0 = Un-mute
1 = Mute
Headphone Output Volume Update
Writing a 1 to this bit will update
HPOUTL and HPOUTR volumes
simultaneously.
Left Headphone Output Zero Cross
Enable
0 = disabled
1 = enabled
Left Headphone Output Volume
000000 = -57dB
000001 = -56dB
(… 1dB steps)
111001 = 0dB
(… 1dB steps)
111110 = +5dB
111111 = +6dB
Right Headphone Output Mute
0 = Un-mute
1 = Mute
Headphone Output Volume Update
Writing a 1 to this bit will update
HPOUTL and HPOUTR volumes
simultaneously.
Right Headphone Output Zero
Cross Enable
0 = disabled
1 = enabled
Right Headphone Output Volume
000000 = -57dB
000001 = -56dB
(… 1dB steps)
111001 = 0dB
(… 1dB steps)
111110 = +5dB
111111 = +6dB
PD, Rev 4.0, September 2010
DESCRIPTION
WM8918
69
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