WM8959
Pre-Production
REGISTER
ADDRESS
BIT
2:0
LABEL
ACGAIN
DEFAULT
DESCRIPTION
000b
AC Speaker Boost
[2:0]
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
R38 (26h)
15:8
7
00h
0b
Reserved - Do Not Change
SPKPGA Zero Cross Enable
0 = Zero cross disabled
Class D (4)
SPKZC
1 = Zero cross enabled
6:0
SPKVOL
[6:0]
79h
SPKPGA Volume
(0dB)
000h
00b
(see Table 28 for SPKPGA volume control range)
Reserved - Do Not Change
AINLMUX Input Source
R39 (27h)
15:4
3:2
Input Mixers
(1)
AINLMODE
[1:0]
00 = INMIXL (Left Input Mixer)
01 = RXVOICE (RXP - RXN)
10 = DIFFINL (LIN12 PGA - LIN34 PGA)
11 = (Reserved)
1:0
AINRMODE
[1:0]
00b
AINRMUX Input Source
00 = INMIXR (Right Input Mixer)
01 = RXVOICE (RXP - RXN)
10 = DIFFINR (RIN12 PGA - RIN34 PGA)
11 = (Reserved)
R40 (28h)
15:8
7
00h
0b
Reserved - Do Not Change
LIN34 PGA Non-Inverting Input Select
0 = LIN4 not connected to PGA
1 = LIN4 connected to PGA
LIN34 PGA Inverting Input Select
0 = LIN3 not connected to PGA
1 = LIN3 connected to PGA
LIN12 PGA Non-Inverting Input Select
0 = LIN2 not connected to PGA
1 = LIN2 connected to PGA
LIN12 PGA Inverting Input Select
0 = LIN1 not connected to PGA
1 = LIN1 connected to PGA
RIN34 PGA Non-Inverting Input Select
0 = RIN4 not connected to PGA
1 = RIN4 connected to PGA
RIN34 PGA Inverting Input Select
0 = RIN3 not connected to PGA
1 = RIN3 connected to PGA
RIN12 PGA Non-Inverting Input Select
0 = RIN2 not connected to PGA
1 = RIN2 connected to PGA
RIN12 PGA Inverting Input Select
0 = RIN1 not connected to PGA
1 = RIN1 connected to PGA
Reserved - Do Not Change
LIN34 PGA Output to INMIXL Mute
0 = Mute
Input Mixers
(2)
LMP4
LMN3
LMP2
LMN1
RMP4
RMN3
RMP2
RMN1
6
5
4
3
2
1
0
0b
0b
0b
0b
0b
0b
0b
R41 (29h)
15:9
8
00h
0b
Input Mixers
(3)
L34MNB
1 = Un-Mute
PP, May 2008, Rev 3.1
140
w
WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
