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WM8980CGEFL/V Datasheet(PDF) 62 Page - Wolfson Microelectronics plc

Part # WM8980CGEFL/V
Description  Stereo CODEC with Speaker Driver and Video Buffer
PDF  123 Pages
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Manufacturer  WOLFSON [Wolfson Microelectronics plc]
Direct Link  http://www.wolfsonmicro.com
Logo WOLFSON - Wolfson Microelectronics plc

WM8980CGEFL/V Datasheet(HTML) 62 Page - Wolfson Microelectronics plc

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WM8980
Pre-Production
w
PP, Rev 3.8, May 2012
62
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
R49
Output control
2
SPKBOOST
0
0 = speaker gain = -1;
DC = AVDD / 2
1 = speaker gain = +1.5;
DC = 1.5 x AVDD / 2
R1
Power
management
1
8
BUFDCOPEN
0
Dedicated buffer for DC level shifting
output stages when in 1.5x gain
boost configuration.
0=Buffer disabled
1=Buffer enabled (required for 1.5x
gain boost)
Table 42 Speaker Boost Stage Control
SPKBOOST
OUTPUT
STAGE GAIN
OUTPUT DC
LEVEL
OUTPUT STAGE
CONFIGURATION
0
1x (0dB)
AVDD/2
Inverting
1
1.5x (3.52dB)
1.5xAVDD/2
Non-inverting
Table 43 Output Boost Stage Details
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
R43
Beep control
5
MUTERPGA2INV
0
Mute input to INVROUT2 mixer
4
INVROUT2
0
Invert ROUT2 output
3:1
BEEPVOL
000
AUXR input to ROUT2 inverter gain
000 = -15dB
...
111 = +6dB
0
BEEPEN
0
0 = mute AUXR beep input
1 = enable AUXR beep input
Table 44 AUXR – ROUT2 BEEP Mixer Function



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