WM8959 Wolfson Microelectronics Ltd., WM8959 Datasheet - Page 145

• Manufacturer Part Number: WM8959
• Description: Mobile Multimedia DAC with Dual-mode Class AB/D Speaker Driver
• Manufacturer: Wolfson Microelectronics Ltd.

w
Pre-Production
R54 (36h)
Speaker
Output Mixer
R55 (37h)
Additional
Control
R56 (38h)
Anti-Pop (1)
REGISTER
ADDRESS
4
3
2
1
0
15:8
7
6
5
4
3
2
1
0
15:1
0
15:6
5
4
BIT
ROPRON
RL12ROP
RR12ROP
RROPGAROP
LB2SPK
RB2SPK
LI2SPK
RI2SPK
LOPGASPK
ROPGASPK
LDSPK
RDSPK
VROI
DIS_LLINE
DIS_RLINE
LABEL
0b
0b
0b
0b
0b
000h
0b
0b
0b
0b
0b
0b
0b
0b
0000h
0b
000h
0b
0b
DEFAULT
Inverted ROP Output to RONMIX
0 = Mute
1 = Un-mute
Reserved - Do Not Change
LIN12 PGA Output to ROPMIX
0 = Mute
1 = Un-mute
RIN12 PGA Output to ROPMIX
0 = Mute
1 = Un-mute
ROPGA to ROPMIX
0 = Mute
1 = Un-mute
Reserved - Do Not Change
AINLMUX Output to SPKMIX
0 = Mute
1 = Un-mute
AINRMUX Output to SPKMIX
0 = Mute
1 = Un-mute
LIN2 to SPKMIX
0 = Mute
1 = Un-mute
RIN2 to SPKMIX
0 = Mute
1 = Un-mute
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
1 = Un-mute
Note: RDSPK must be muted when RDRO=1
Reserved - Do Not Change
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
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
1 = Actively discharging ROP and RON
DESCRIPTION
PP, May 2008, Rev 3.1
WM8959
145