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STW5098T 数据表(PDF) 39 Page - STMicroelectronics

部件名 STW5098T
功能描述  Dual low power asynchronous stereo audio Codec with integrated power amplifiers
PDF  85 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

STW5098T 数据表(HTML) 39 Page - STMicroelectronics

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STw5098
Control registers
39/85
5.5
Analog functions
CR#
(hex)
Description
D7D6D5D4
D3
D2D1
D0
Def.
CR17
(11h)
Mixer switches &
Mic Bias
MBIAS
MBIASPD
ADMIC
ADLIN
MIXMIC
MIXLIN
MIXDAC
MICLO
0000
0000
CR18
(12h)
Input switches
X
IN2VCM
LINMUTE
LINSEL(1:0)
MICMUTE
MICSEL(1:0)
0010
0100
CR19
(13h)
Drivers control
VCML(1:0)
X
MUTELO
MUTEHP
LSLIM
LSSEL(1:0)
0101
1000
Table 15.
CR17 description
Bits
Name
Value
CR17 description
Def.
7
MBIAS
1
0
Microphone Bias enabled (2.1V typ at MBIAS pin)
Microphone Bias disabled
0
6
MBIASPD
1
0
MBIAS pin is pulled down when microphone bias is disabled
MBIAS pin is in high impedance state when microphone Bias is
disabled
0
5ADMIC
1
0
Microphone preamplifiers are connected to AD path
Microphone preamplifiers are not connected to AD path
0
4ADLIN
1
0
Line in preamplifiers are connected to AD path
Line in preamplifiers are not connected to AD path
0
3MIXMIC
1
0
Microphone preamplifiers are connected to mixers
Microphone preamplifiers are not connected to mixers
0
2MIXLIN
1
0
Line in preamplifiers are connected to mixers
Line in preamplifiers are not connected to mixers
0
1MIXDAC
1
0
Stereo DAC path is connected to mixers
Stereo DAC path is not connected to mixers
0
0MICLO
1
0
Microphone preamplifiers are connected to line out drivers
Mixers are connected to line out drivers
0
Table 16.
CR18 description
Bits
Name
Value
CR18 description
Def.
6IN2VCM
1
0
Unused analog input pins are biased to common mode voltage
Unused analog input pins are in high impedance state
0
5LINMUTE
1
0
Line in preamplifiers are muted
Line in preamplifiers are not muted
1
4-3
LINSEL(1:0)
00
01
10
11
Input pins connected to line in preamplifiers (if LINMUTE=0)
LINEIN
(LINEINL, LINEINR)
AUX1
(AUX1L, AUX1R)
AUX2
(AUX2LP-AUX2LN, AUX2RP-AUX2RN)
AUX3
(AUX3L, AUX3R)
00



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