WM8983 Datasheet, PDF (32/88 Pages) Wolfson Microelectronics plc – Mobile Multimedia CODEC with 1W Speaker Driver

WM8983
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REGISTER
ADDRESS
R15
Left channel
ADC Digital
Volume
BIT
LABEL
7:0 ADCLVOL
[7:0]
8
ADCVU
R16
7:0
Right channel
ADC Digital
Volume
ADCRVOL
[7:0]
8
ADCVU
Table 16 ADC Digital Volume Control
DEFAULT
11111111
( 0dB )
Not
latched
11111111
( 0dB )
Not
latched
DESCRIPTION
Left ADC Digital Volume Control
0000 0000 = Digital Mute
0000 0001 = -127dB
0000 0010 = -126.5dB
... 0.5dB steps up to
1111 1111 = 0dB
ADC left and ADC right volume do not
update until a 1 is written to ADCVU (in
reg 15 or 16)
Right ADC Digital Volume Control
0000 0000 = Digital Mute
0000 0001 = -127dB
0000 0010 = -126.5dB
... 0.5dB steps up to
1111 1111 = 0dB
ADC left and ADC right volume do not
update until a 1 is written to ADCVU (in
reg 15 or 16)
w
PP Rev 1.1 August 2005
32