WM8959 Wolfson Microelectronics Ltd., WM8959 Datasheet - Page 66

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

WM8959
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The output mixers ROPMIX and RONMIX and their outputs ROP and RON are controlled as
described in Table 32. Care should be taken to avoid clipping when enabling more than one path to
ROP or RON. The ROATTN attenuation control can be used to prevent clipping when more than one
full scale signal is input to the ROP mixer.
Table 32 ROP and RON Volume Control
R30 (1Eh)
R53 (35h)
REGISTER
ADDRESS
BIT
2
1
0
6
5
4
2
1
0
RONMUTE
ROPMUTE
ROATTN
RROPGARON
RLOPGARON
ROPRON
RL12ROP
RR12ROP
RROPGAROP
LABEL
DEFAULT
1b
1b
0b
0b
0b
0b
0b
0b
0b
0 = Un-mute
1 = Mute
ROP Line Output Mute
0 = Un-mute
1 = Mute
ROP Attenuation
0 = 0dB
1 = -6dB
0 = Mute
1 = Un-mute
0 = Mute
1 = Un-mute
0 = Mute
1 = Un-mute
LIN12 PGA Output to ROPMIX
0 = Mute
1 = Un-mute
RIN12 PGA Output to ROPMIX
0 = Mute
1 = Un-mute
0 = Mute
1 = Un-mute
RON Line Output Mute
ROPGA to RONMIX
LOPGA to RONMIX
Inverted ROP Output to RONMIX
ROPGA to ROPMIX
DESCRIPTION
PP, May 2008, Rev 3.1
Pre-Production
66