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AN4146 Datasheet(PDF) 25 Page - STMicroelectronics

Part # AN4146
Description  STSmartVoice demonstration board STEVAL-MKI126Vx
PDF  30 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

AN4146 Datasheet(HTML) 25 Page - STMicroelectronics

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DocID023502 Rev 2
25/30
AN4146
STEVAL-MKI126Vx schematics, layout and BOM
Figure 22. STEVAL-MKI126Vx schematic - page 4
Mic Array / on board Mic switch
Mic data level selection
Default setting : 3V3
MIC ARRAY INTERFACE
MIC CLOCK SELECTION
MIC Input Selection Indicator
LED On: On board Mic
LED Off: Mic Array
12
34
56
78
910
11
12
13
14
15
16
J38
R40
0R0 N.F.
R41
0R0
R42
0R0 N.F.
R43
0R0 N.F.
R64
0R0 N.F.
R65
0R0
R66
0R0 N.F.
R67
0R0
R68
0R0 N.F.
R69
0R0
R70
0R0 N.F.
R71
0R0
R72
0R0 N.F.
R73
0R0
R74
0R0 N.F.
R75
0R0
1
IN
2
VCC
3
GND
6
S2
5
D
4
S1
IC1
IC-STG719
1
IN
2
VCC
3
GND
6
S2
5
D
4
S1
IC2
IC-STG719
C54
100nF
C55
100nF
R54
75R
J3-1
J3-2
J4-1
J4-2
MIC_CK
CKOUT_L
CKOUT_H
MIC_CK
CKOUT/4_L
CKOUT/4_H
MIC_DATA5
MIC_DATA4
MIC_DATA3
MIC_DATA2
MIC_DATA2_BOARD
MIC_DATA2_ARRAY
MIC_DATA1
MIC_DATA1_BOARD
MIC_DATA1_ARRAY
MIC_DATA6
PDMIN_5
MIC_DATA5
PDMIN_5_2378
PDMIN_4
MIC_DATA4
PDMIN_4_2378
PDMIN_3
MIC_DATA3
PDMIN_3_2378
PDMIN_2
MIC_DATA2
PDMIN_2_2378
PDMIN_1
MIC_DATA1
PDMIN_1_2378
PDMIN_6
MIC_DATA6
PDMIN_6_2378
MIC_VCC
MIC_CK
MIC_DATA1_ARRAY
MIC_DATA2_ARRAY
MIC_DATA3
MIC_DATA4
MIC_DATA5
MIC_DATA6
ARRAY_DET
3V3_INT
ARRAY_DET
3V3_INT
ARRAY_DET



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