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WM8962B Datasheet(PDF) 45 Page - Wolfson Microelectronics plc

Part # WM8962B
Description  Ultra-Low Power Stereo CODEC with Audio Enhancement DSP, 1W Stereo Class D Speaker Drivers and Ground Referenced Headphone Drivers
PDF  295 Pages
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Manufacturer  WOLFSON [Wolfson Microelectronics plc]
Direct Link  http://www.wolfsonmicro.com
Logo WOLFSON - Wolfson Microelectronics plc

WM8962B Datasheet(HTML) 45 Page - Wolfson Microelectronics plc

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WM8962
Rev 4.3
45
INPUT PGA CONFIGURATION
Each of the PGAs operates in a single-ended mode. Configuration of the PGA inputs to the WM8962
input pins is controlled using the register bits shown in Table 6.
The maximum available attenuation on any of these input paths is achieved by using register bits
shown in Table 6 to disconnect the input pins from the applicable PGA.
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
R37 (25h)
Left input
PGA control
3
IN1L_TO_INPGAL
1
Selects the IN1L pin as an input to the
Left PGA
0 = Disabled
1 = Enabled
2
IN2L_TO_INPGAL
0
Selects the IN2L pin as an input to the
Left PGA
0 = Disabled
1 = Enabled
1
IN3L_TO_INPGAL
0
Selects the IN3L pin as an input to the
Left PGA
0 = Disabled
1 = Enabled
0
IN4L_TO_INPGAL
0
Selects the IN4L pin as an input to the
Left PGA
0 = Disabled
1 = Enabled
R38 (26h)
Right input
PGA control
3
IN1R_TO_INPGA
R
1
Selects the IN1R pin as an input to the
Right PGA
0 = Disabled
1 = Enabled
2
IN2R_TO_INPGA
R
0
Selects the IN2R pin as an input to the
Right PGA
0 = Disabled
1 = Enabled
1
IN3R_TO_INPGA
R
0
Selects the IN3R pin as an input to the
Right PGA
0 = Disabled
1 = Enabled
0
IN4R_TO_INPGA
R
0
Selects the IN4R pin as an input to the
Right PGA
0 = Disabled
1 = Enabled
Table 6 Input PGA Configuration



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