WM8768 Datasheet, PDF (25/38 Pages) Wolfson Microelectronics plc – 24-bit, 192kHz 8-Channel DAC

Production Data
WM8768
DMUTE AND MUTEALL
The WM8768 can be directly muted using the DMUTE and DMUTE4 register bits to control which
channels are muted. The mute happens as soon as the serial write is performed.
REGISTER ADDRESS BIT LABEL
0001001
5:3 DMUTE
DAC Mute
[2:0]
0001111
2 DMUTE4
DAC4 Control
DEFAULT
DESCRIPTION
000
DAC 3,2 and 1 Soft Mute select
0
DAC 4 Soft Mute select
{DMUTE4,DMUTE [2:0]}
0000
0001
0010
0011
0100
0101
0110
0111
1000
1001
1010
1011
1100
1101
1110
1111
DAC
CHANNEL 4
Not MUTE
Not MUTE
Not MUTE
Not MUTE
Not MUTE
Not MUTE
Not MUTE
Not MUTE
MUTE
MUTE
MUTE
MUTE
MUTE
MUTE
MUTE
MUTE
Table 10 DAC Mute Control
DAC
CHANNEL 3
Not MUTE
Not MUTE
Not MUTE
Not MUTE
MUTE
MUTE
MUTE
MUTE
Not MUTE
Not MUTE
Not MUTE
Not MUTE
MUTE
MUTE
MUTE
MUTE
DAC
CHANNEL 2
Not MUTE
Not MUTE
MUTE
MUTE
Not MUTE
Not MUTE
MUTE
MUTE
Not MUTE
Not MUTE
MUTE
MUTE
Not MUTE
Not MUTE
MUTE
MUTE
DAC
CHANNEL 1
Not MUTE
MUTE
Not MUTE
MUTE
Not MUTE
MUTE
Not MUTE
MUTE
Not MUTE
MUTE
Not MUTE
MUTE
Not MUTE
MUTE
Not MUTE
MUTE
An overall MUTE to all channels can be applied by using the MUTEALL register.
REGISTER ADDRESS
0000010
DAC Mute
BIT LABEL
0 MUTEALL
DEFAULT
0
DESCRIPTION
Soft Mute Select:
0 : Normal operation
1: Soft mute all channels
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PD Rev 4.3 July 2010
25