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WM8281ECS/R Scheda tecnica(PDF) 216 Page - Cirrus Logic

Il numero della parte WM8281ECS/R
Spiegazioni elettronici  Low Power Audio System with Ambient Noise Cancellation and Echo Cancellation
PDF  392 Pages
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Produttore elettronici  CIRRUS [Cirrus Logic]
Homepage  http://www.cirrus.com
Logo CIRRUS - Cirrus Logic

WM8281ECS/R Scheda tecnica(HTML) 216 Page - Cirrus Logic

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WM8281
216
Rev 4.0
circuit configuration is illustrated in Figure 67.
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
R135
(0087h)
HP Detect
Calibration
1
15:14
HP_OFFSET_DIF
F_11 [1:0]
Headphone Detect Calibration field.
Signed integer, -7 to +7. LSB=1.
Default value is factory-set per device.
Note that HP_OFFSET_DIFF_11 is a 4-
bit field, and is split across R135 and
R136 register addresses.
13:10
HP_OFFSET_DIF
F_10 [3:0]
Headphone Detect Calibration field.
Signed integer, -7 to +7. LSB=1.
Default value is factory-set per device.
9:4
HP_OFFSET_01
[5:0]
Headphone Detect Calibration field.
Signed integer, -31 to +31. LSB=1.
Default value is factory-set per device.
3:0
HP_OFFSET_DIF
F_00 [3:0]
Headphone Detect Calibration field.
Signed integer, -7 to +7. LSB=1.
Default value is factory-set per device.
R136
(0088h)
HP Detect
Calibration
2
15:14
HP_OFFSET_DIF
F_11 [3:2]
Headphone Detect Calibration field.
Signed integer, -7 to +7. LSB=1.
Field is split across 2 registers.
Default value is factory-set per device.
Note that HP_OFFSET_DIFF_11 is a 4-
bit field, and is split across R135 and
R136 register addresses.
13:7
HP_GRADIENT_
1X [6:0]
Headphone Detect Calibration field.
Signed number, -31.5 to +31.5. LSB=0.5.
Default value is factory-set per device.
6:0
HP_GRADIENT_
0X [6:0]
Headphone Detect Calibration field.
Signed number, -31.5 to +31.5. LSB=0.5.
Default value is factory-set per device.
R549
(0225h)
HP Ctrl 1L
2
HP1L_FLWR
1
HPOUT1L Voltage Follower mode
0 = Disabled
1 = Enabled
This bit must be set to 0 when the
Headphone Detection function is
enabled on HPOUT1L.
This bit is configured automatically when
HPOUT1L is enabled or disabled.
1
HP1L_SHRTI
1
HPOUT1L Input Clamp
0 = Disabled
1 = Enabled
This bit must be set to 0 when the
Headphone Detection function is
enabled on HPOUT1L.
This bit is configured automatically when
HPOUT1L is enabled or disabled.
0
HP1L_SHRTO
0
HPOUT1L Output Clamp
0 = Enabled
1 = Disabled
This bit must be set to 1 when the
Headphone Detection function is
enabled on HPOUT1L.
This bit is configured automatically when
HPOUT1L is enabled or disabled.



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