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WM8978CGEFL/V Datasheet(PDF) 65 Page - Wolfson Microelectronics plc

No. de pieza WM8978CGEFL/V
Descripción Electrónicos  Stereo CODEC with Speaker Driver
PDF  118 Pages
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Fabricante Electrónico  WOLFSON [Wolfson Microelectronics plc]
Página de inicio  http://www.wolfsonmicro.com
Logo WOLFSON - Wolfson Microelectronics plc

WM8978CGEFL/V Datasheet(HTML) 65 Page - Wolfson Microelectronics plc

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Production Data
WM8978
w
PD, Rev 4.5, October 2011
65
Figure 33 Outputs OUT3 and OUT4
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
R49
Output control
3
OUT3BOOST
0
0 = OUT3 output gain = -1;
DC = AVDD / 2
1 = OUT3 output gain = +1.5
DC = 1.5 x AVDD / 2
4
OUT4BOOST
0
0 = OUT4 output gain = -1;
DC = AVDD / 2
1 = OUT4 output 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 46 OUT3 and OUT4 Boost Stages Control
OUT3BOOST/
OUT4BOOST
OUTPUT
STAGE GAIN
OUTPUT DC
LEVEL
OUTPUT STAGE
CONFIGURATION
0
1x
AVDD/2
Inverting
1
1.5x
1.5xAVDD/2
Non-inverting
Table 47 OUT3/OUT4 Output Boost Stage Details



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