WM8983GEFL/V Wolfson Microelectronics, WM8983GEFL/V Datasheet - Page 43

• Manufacturer Part Number: WM8983GEFL/V
• Description: Audio CODECs Mbl Multimedia CODEC w/ 1W Speaker Driver
• Manufacturer: Wolfson Microelectronics

Specifications of WM8983GEFL/V

• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: QFN-32
• Minimum Operating Temperature: - 25 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Production Data
w
DIGITAL ADC VOLUME CONTROL
Table 18 ADC Digital Volume Control
The output of the ADCs can be digitally attenuated over a range from –127dB to 0dB in 0.5dB steps.
The gain for a given eight-bit code X is given by:
0.5 × (G-255) dB for 1 ≤ G ≤ 255;
R15
Left channel
ADC Digital
Volume
R16
Right channel
ADC Digital
Volume
REGISTER
ADDRESS
7:0
8
7:0
8
BIT
ADCLVOL
[7:0]
ADCVU
ADCRVOL
[7:0]
ADCVU
LABEL
MUTE for G = 0
11111111
( 0dB )
Not
latched
11111111
( 0dB )
Not
latched
DEFAULT
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)
DESCRIPTION
PD, Rev 4.3, May 2010
WM8983
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