wm8400 Wolfson Microelectronics plc, wm8400 Datasheet - Page 90

• Manufacturer Part Number: wm8400
• Description: Wolfson Audioplustm Hi-fi Audio Codec And Power Management Unit For Mobile Multimedia
• Manufacturer: Wolfson Microelectronics plc

WM8400
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The output mixers LOPMIX and LONMIX and their outputs LOP and LON are controlled as described
in Table 56. Care should be taken to avoid clipping when enabling more than one path to LOP or
LON. The LOATTN attenuation control can be used to prevent clipping when more than one full scale
signal is input to the LOP mixer.
Table 56 LOP and LON Volume Control
R30 (1Eh)
R52 (34h)
REGISTER
ADDRESS
BIT
6
5
4
6
5
4
2
1
0
LONMUTE
LOPMUTE
LOATTN
LLOPGALON
LROPGALON
LOPLON
LR12LOP
LL12LOP
LLOPGALOP
LABEL
DEFAULT
1b
1b
0b
0b
0b
0b
0b
0b
0b
LON Line Output Mute
0 = Un-mute
1 = Mute
LOP Line Output Mute
0 = Un-mute
1 = Mute
LOP Attenuation
0 = 0dB
1 = -6dB
LOPGA to LONMIX
0 = Mute
1 = Un-mute
0 = Mute
1 = Un-mute
0 = Mute
1 = Un-mute
RIN12 PGA Output to LOPMIX
0 = Mute
1 = Un-mute
0 = Mute
1 = Un-mute
LOPGA to LOPMIX
0 = Mute
1 = Un-mute
ROPGA to LONMIX
Inverted LOP Output to LONMIX
LIN12 PGA Output to LOPMIX
DESCRIPTION
PP, April 2009, Rev 3.0
Pre-Production
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