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1
CX-SDIN1
2
CX-SCLK
3
CX-LRCK
4
VD
5
DGND
6
VLC
7
SCL/COLK
8
SDA/CDOUT
9
AD1/CDIN
10
AD0/CS
11
INT
12
RGT
13
AINR-
14
AINR+
15
AINL+
16
AINL-
17
VQ
18
FILT+
19
REFGND
20
AOUTB4-
21
AOUTB4+
22
AOUTA4+
23
AOUTA4-
24
VA
25
AGND
26
AOUTB3-
27
AOUTB3+
28
AOUTA3+
29
AOUTA3-
30
AOUTB2-
31
AOUTB2+
32
AOUTA2+
33
AOUTA2-
34
AOUTB1-
35
AOUTB1+
36
AOUTA1+
37
AOUTA1-
38
MUTEC
39
LPFLT
40
AGND1
41
VARX
42
RXP7/GPO7
43
RXP6/GPO6
44
RXP5/GPO5
45
RXP4/GPO4
46
RXP3/GPO3
47
RXP2/GPO2
48
RXP1/GPO1
49
RXP0
50
TXP
51
VD1
52
DGND1
53
VLS
54
GAI_SDOUT
55
RMCK
56
CX_SDOUT
57
ADCIN2
58
ADCIN1
59
OMCK
60
SAI_LRCK
61
SAI_SCLK
62
CX_SDIN4
63
CX_SDIN3
64
CX_SDIN2
U8
CS42528
CS42528
1
CLK
2
VPLL
3
GND
4
VD
5
VL
6
CLK/SCL
7
CS
8
MISO/SDA
9
MOSI
10
BUSY/HSO/EE_CS
11
INT/HS1
12
RESET
13
DBCK
14
VL1
15
GND1
16
VD1
17
DBDA
18
MCLK
19
DAO_D1
20
DAO_LRCLK
21
DAO_SCLK
22
DAI/_D1
23
DAI_LRCLK
24
DAI_SCLK
U9
CS48L11
L18 BD471SN
L17
BD471SN
R52
4.7K
R53
4.7K
R55
4.7K
R59
4.7K
R58
4.7K
R62
4.7K
R76
4.7K
R77
100
C112
104
R75
4.7K
R74
4.7K
R54
33
R56
33
R57
33
R61
33
R60
33
R68
33
L20
BD471SN
BD471SN
C113
22U
C106
104
C105
102
L19
BD471SN
C104
104
104
R65
10K
R64
10K
R71
100
R63
100
C103
104
R73
22
R72
22
R70
10K
R69
10K
C96
10U
C93
104
CE6
100U/10
C89
104
L13
BD471SN
C79
10U
C83
104
C84
102
R43
33
R44
1.37K
C56
223
C59
102
L12
BD471SN
C57
22U
C60
104
C61
102
C62
103
C63
103
C64
103
C65
103
C66
103
C67
103
C68
103
C71
103
L14
BD471SN
C76
22U
C75
104
C74
102
L16
BD471SN
C80
104
104
R50
1K
R51
1K
C81
47P
C77
47P
C94
47P
C97
47P
C107
NC
C108
NC
C109
NC
1
1A
2
GND
3
2A
4
2Y
5
VCC
6
1Y
U7
74LVC2G4
74LVC2G4
X1
12.288MHz
C70
20P
C78
20P
R47
1M
R48
33
C90
47P
R49
1K
L15
BD471SN
C72
104
C73
102
1
NO
2
GND
3
NC
4
COM
5
V+
6
IN
U10
SGM3157
R80
33
R66
0
R67
NC
L21
BD471SN
C114
104
R82
100
R81
10K
C117
104
CE4
100U/25
C30
102
102
R14
47K
R21
43K
C27
104
R15
22
R20
7.68K
C29
104
CE3
470U/10 LESR
L7
10UH/5A
C28
102
C31
104
104
1
AAM
2
IN
3
SW
4
GND
5
BST
6
EN
7
VCC
8
FB
U2
MP2314
R23
91K
91K
R19
75K
C32
104
R22
20K
20K
R18
10K
10K
C33
103
1 VIN
2
GND
3 EN
4
ADJ
5
VO
U18
AS2930_3.3
R208
10K
10K
C180
10U
C184
10U
C185
104
C183
104
3
IN
1
ADJ
2
OUT1
4
OUT2
U4
AS1117_3.3V
C35
10U
C121
104
104
C48
22U
C42
104
Q3
C8050
R41
47K
47K
R46
22K
R45
47K
47K
C69
NC
R42
1K
1
G
2
D
3
S
U6
P5102
Q1
NC
R8
NC
R1
NC
R6
NC
C5
NC
NC
R7
NC
1
S
2
S
3
S
4
G
5
D
6
D
7
D
8
D
U1
NC
1 VIN
2
GND
3 EN
4
ADJ
5
VO
U5
AS2930_1.2
R39
10K
10K
C54
10U
10U
C55
10U
10U
C53
104
104
C52
104
104
L28
BD471SN
C116
104
C87
105
C88
105
C82
104
C91
10P
C95
10P
C98
10P
L27
BD471SN
C115
104
C85
104
C86
105
C92
104
R198
0 /1206
C51
22U
C10
NC
[2]
DSP_CLK
[2]
P1.2V
[2,3]
P3.3V
[3]
DSP_SPI_CLK
[3]
DSP_CS
[3]
DSP_MISO
[3]
DSP_MOSI
[3]
DSP_BSY
[3]
DSP_INT
[3]
DSP_RESET
[1,2,3]
CODEC_DAI_SCLK
[1,2,3]
CODEC_DAI_LRCK
[2]
SW_DAI_DI
[2]
DSP_DAO_D3
[1]
DSP_DAO_D2
[2]
DSP_DAO_D1
[1,2,3]
CODEC_DAI_SCLK
[1,2,3]
CODEC_DAI_LRCK
[2,3]
P3.3V
[2,3]
P3.3V
[3]
SCL_BUS
[3]
SDA_BUS
[3]
42528_INT
[3]
42528_RESET
[1]
ADC_AINR-
[1]
ADC_AINR+
[1]
ADC_AINL+
[1]
ADC_AINL-
[1,2]
P5V
[1]
AOUT_R-
[1]
AOUT_R+
[1]
AOUT_L-
[1]
AOUT_L+
[1]
CODEC_MUTE
[1,2]
P5V
[1]
SPDIF_BT
[1,3]
OPTICAL_IN
[2,3]
P3.3V
[2,3]
P3.3V
[2]
CODEC_DAI_D1
[2]
DSP_CLK
[1,2,3]
CODEC_DAI_LRCK
[1,2,3]
CODEC_DAI_SCLK
[2]
DSP_DAO_D3
[2]
DSP_CLK
[2,3]
P3.3V
[3]
MCU_DAO
[2]
CODEC_DAI_D1
[2]
SW_DAI_DI
[2,3]
P3.3V
[3]
MCU_I2S_CTRL
[2,3]
19V
[2,3]
19V
[3]
5V
[2,3]
STANDBY
[1,2]
P5V
[2,3]
P3.3V
[1]
3.3V
[2,3]
STANDBY
[2,3]
19V
[1]
PVCC
[2]
P1.2V
[1,3]
A3.3V
[2]
DSP_DAO_D1
[3]
MCU_3.3V
SCHEMATIC DIAGRAM - MAIN BOARD (DSP+CODEC PART)
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