WM8959
Pre-Production
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.
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
R30 (1Eh)
2
RONMUTE
1b
RON Line Output Mute
0 = Un-mute
1 = Mute
1
0
6
5
4
2
1
0
ROPMUTE
ROATTN
1b
0b
0b
0b
0b
0b
0b
0b
ROP Line Output Mute
0 = Un-mute
1 = Mute
ROP Attenuation
0 = 0dB
1 = -6dB
R53 (35h)
RROPGARON
RLOPGARON
ROPRON
ROPGA to RONMIX
0 = Mute
1 = Un-mute
LOPGA to RONMIX
0 = Mute
1 = Un-mute
Inverted ROP Output to RONMIX
0 = Mute
1 = Un-mute
RL12ROP
LIN12 PGA Output to ROPMIX
0 = Mute
1 = Un-mute
RR12ROP
RIN12 PGA Output to ROPMIX
0 = Mute
1 = Un-mute
RROPGAROP
ROPGA to ROPMIX
0 = Mute
1 = Un-mute
Table 32 ROP and RON Volume Control
PP, May 2008, Rev 3.1
66
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WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
