WM8945
Production Data
DESCRIPTION
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
6
SPKR_PGA_
MUTE
1
Right Speaker PGA Mute
0 = Disable Mute
1 = Enable Mute
Right Speaker PGA Volume
00_0000 = -57dB gain
00_0001 = -56dB
…
SPKR_VOL
11_1001
(0dB)
5:0
11_1001 = 0dB
...
11_1111 = +6dB
(See Table 34 for volume range)
Table 33 Speaker PGA Volume Control
PGA GAIN SETTING
VOLUME (dB)
-57
PGA GAIN SETTING
VOLUME (dB)
00h
01h
02h
03h
04h
05h
06h
07h
08h
09h
0Ah
0Bh
0Ch
0Dh
0Eh
0Fh
10h
11h
12h
13h
14h
15h
16h
17h
18h
19h
1Ah
1Bh
1Ch
1Dh
1Eh
1Fh
20h
21h
22h
23h
24h
25h
26h
27h
28h
29h
2Ah
2Bh
2Ch
2Dh
2Eh
2Fh
30h
31h
32h
33h
34h
35h
36h
37h
38h
39h
3Ah
3Bh
3Ch
3Dh
3Eh
3Fh
-25
-24
-23
-22
-21
-20
-19
-18
-17
-16
-15
-14
-13
-12
-11
-10
-9
-56
-55
-54
-53
-52
-51
-50
-49
-48
-47
-46
-45
-44
-43
-42
-41
-40
-8
-39
-7
-38
-6
-37
-5
-36
-4
-35
-3
-34
-2
-33
-1
-32
0
-31
+1
+2
+3
+4
+5
+6
-30
-29
-28
-27
-26
Table 34 Speaker PGA Volume Range
PD, May 2011, Rev 4.1
56
w
WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
