wm8400 Wolfson Microelectronics plc, wm8400 Datasheet - Page 175

• Manufacturer Part Number: wm8400
• Description: Wolfson Audioplustm Hi-fi Audio Codec And Power Management Unit For Mobile Multimedia
• Manufacturer: Wolfson Microelectronics plc

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Pre-Production
R31 (1Fh)
OUT3 and
OUT4 Volume
R32 (20h)
LOPGA
Volume
R33 (21h)
ROPGA
Volume
R34 (22h)
Speaker
Volume
R35 (23h)
Class D (1)
R36 (24h)
Class D (2)
R37 (25h)
Class D (3)
REGISTER
ADDRESS
15:6
5
4
3:2
1
0
15:9
8
7
6:0
15:9
8
7
6:0
15:2
1:0
15:9
8
7
6:0
15:0
15:6
BIT
OUT3MUTE
OUT3ATTN
OUT4MUTE
OUT4ATTN
OPVU[2]
LOPGAZC
LOPGAVOL
[6:0]
OPVU[3]
ROPGAZC
ROPGAVOL
[6:0]
SPKATTN
[1:0]
CDMODE
CLASSD_CLK_SEL
LABEL
00000000
00b
1b
0b
00b
1b
0b
00h
N/A
0b
79h
(0dB)
00h
N/A
0b
79h
(0dB)
0000h
11b
00h
0b
0b
0000011b
0057h
00000000
100b
DEFAULT
Reserved - Do Not Change
OUT3 Mute
0 = Un-mute
1 = Mute
OUT3 Attenuation
0 = 0dB
1 = -6dB
Reserved - Do Not Change
OUT4 Mute
0 = Un-mute
1 = Mute
OUT4 Attenuation
0 = 0dB
1 = -6dB
Reserved - Do Not Change
Output PGA Volume Update
Writing a 1 to this bit will update LOPGA, ROPGA, LOUTVOL
and ROUTVOL volumes simultaneously.
LOPGA Zero Cross Enable
0 = Zero cross disabled
1 = Zero cross enabled
LOPGA Volume
(See Table 53 for output PGA volume control range)
Reserved - Do Not Change
Output PGA Volume Update
Writing a 1 to this bit will update LOPGA, ROPGA, LOUTVOL
and ROUTVOL volumes simultaneously.
ROPGA Zero Cross Enable
0 = Zero cross disabled
1 = Zero cross enabled
ROPGA Volume
(See Table 53 for output PGA volume control range)
Reserved - Do Not Change
Speaker Output Attenuation (SPKN and SPKP)
00 = 0dB
01 = -6dB
10 = -12dB
11 = mute
Reserved - Do Not Change
Speaker Class D Mode Enable
0 = Class D mode
1 = Class AB mode
Class D Clock Source
0 = Derived from SYSCLK (via DCLKDIV)
1 = 600kHz oscillator
Reserved - Do Not Change
Reserved - Do Not Change
Reserved - Do Not Change
DESCRIPTION
PP, April 2009, Rev 3.0
WM8400
175