Pre-Production
WM8959
REGISTER
ADDRESS
BIT
LABEL
ROPRON
DEFAULT
DESCRIPTION
Inverted ROP Output to RONMIX
4
0b
0 = Mute
1 = Un-mute
3
2
0b
0b
Reserved - Do Not Change
LIN12 PGA Output to ROPMIX
0 = Mute
RL12ROP
1 = Un-mute
1
0
RR12ROP
0b
0b
RIN12 PGA Output to ROPMIX
0 = Mute
1 = Un-mute
RROPGAROP
ROPGA to ROPMIX
0 = Mute
1 = Un-mute
R54 (36h)
15:8
7
000h
0b
Reserved - Do Not Change
AINLMUX Output to SPKMIX
0 = Mute
Speaker
Output Mixer
LB2SPK
RB2SPK
LI2SPK
1 = Un-mute
6
5
4
3
2
1
0b
0b
0b
0b
0b
0b
AINRMUX Output to SPKMIX
0 = Mute
1 = Un-mute
LIN2 to SPKMIX
0 = Mute
1 = Un-mute
RI2SPK
RIN2 to SPKMIX
0 = Mute
1 = Un-mute
LOPGASPK
ROPGASPK
LDSPK
LOPGA to SPKMIX
0 = Mute
1 = Un-mute
ROPGA to SPKMIX
0 = Mute
1 = Un-mute
Left DAC to SPKMIX
0 = Mute
1 = Un-mute
Note: LDSPK must be muted when LDLO=1
Right DAC to SPKMIX
0 = Mute
0
RDSPK
VROI
0b
1 = Un-mute
Note: RDSPK must be muted when RDRO=1
Reserved - Do Not Change
R55 (37h)
15:1
0
0000h
0b
Additional
Control
VREF to Analogue Output Resistance (Disabled Outputs)
0 = 20kΩ (Headphone) or 10kΩ (Line Out) from buffered
VMID to output
1 = 500Ω from buffered VMID to output
Reserved - Do Not Change
R56 (38h)
15:6
5
000h
0b
Anti-Pop (1)
DIS_LLINE
DIS_RLINE
Discharges LOP and LON outputs via approx 500Ω resistor
0 = Not active
1 = Actively discharging LOP and LON
Discharges ROP and RON outputs via approx 500Ω resistor
0 = Not active
4
0b
1 = Actively discharging ROP and RON
PP, May 2008, Rev 3.1
145
w
WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
