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WM8959 Datasheet(PDF) 139 Page - Wolfson Microelectronics plc

Part # WM8959
Description  Mobile Multimedia DAC with Dual-Mode Class AB/D Speaker Driver
PDF  155 Pages
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Manufacturer  WOLFSON [Wolfson Microelectronics plc]
Direct Link  http://www.wolfsonmicro.com
Logo WOLFSON - Wolfson Microelectronics plc

WM8959 Datasheet(HTML) 139 Page - Wolfson Microelectronics plc

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Pre-Production
WM8959
w
PP, May 2008, Rev 3.1
139
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
4
OUT3ATTN
0b
OUT3 Attenuation
0 = 0dB
1 = -6dB
3:2
00b
Reserved
1
OUT4MUTE
1b
OUT4 Mute
0 = Un-mute
1 = Mute
0
OUT4ATTN
0b
OUT4 Attenuation
0 = 0dB
1 = -6dB
15:9
00h
Reserved - Do Not Change
8
OPVU[2]
N/A
Output PGA Volume Update
Writing a 1 to this bit will update LOPGA, ROPGA, LOUTVOL
and ROUTVOL volumes simultaneously.
7
LOPGAZC
0b
LOPGA Zero Cross Enable
0 = Zero cross disabled
1 = Zero cross enabled
R32 (20h)
LOPGA
Volume
6:0
LOPGAVOL
[6:0]
79h
(0dB)
LOPGA Volume
(See Table 28 for output PGA volume control range)
15:9
00h
Reserved - Do Not Change
8
OPVU[3]
N/A
Output PGA Volume Update
Writing a 1 to this bit will update LOPGA, ROPGA, LOUTVOL
and ROUTVOL volumes simultaneously.
7
ROPGAZC
0b
ROPGA Zero Cross Enable
0 = Zero cross disabled
1 = Zero cross enabled
R33 (21h)
ROPGA
Volume
6:0
ROPGAVOL
[6:0]
79h
(0dB)
ROPGA Volume
(See Table 28 for output PGA volume control range)
15:2
0000h
Reserved - Do Not Change
R34 (22h)
Speaker
Volume
1:0
SPKATTN
[1:0]
11b
Speaker Output Attenuation (SPKN and SPKP)
00 = 0dB
01 = -6dB
10 = -12dB
11 = mute
15:9
00h
Reserved - Do Not Change
8
CDMODE
0b
Speaker Class D Mode Enable
0 = Class D mode
1 = Class AB mode
R35 (23h)
Class D (1)
7:0
00000011
b
Reserved - Do Not Change
R36 (24h)
Class D (2)
15:0
0055h
Reserved - Do Not Change
15:6
00000001
00b
Reserved - Do Not Change
R37 (25h)
Class D (3)
5:3
DCGAIN
[2:0]
000b
DC Speaker Boost
000 = 1.00x boost (+0dB)
001 = 1.27x boost (+2.1dB)
010 = 1.40x boost (+2.9dB)
011 = 1.52x boost (+3.6dB)
100 = 1.67x boost (+4.5dB)
101 = 1.8x boost (+5.1dB)
110 to 111 = Reserved



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