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Figure 25:
xcore.ai
Multichannel
Audio Board
schematic (3
of 8)
Figure 26:
xcore.ai
Multichannel
Audio Board
schematic (4
of 8)
23
U10
22
6
DAC_DIN0
DIN
OUTL
BCLK
R125
33R
21
7
BCLK
BCK
OUTR
LRCK
R126
33R
23
LRCK
LRCK
3V3A
MCLK
20
MCLK
SCK
1
CPVDD
SDA
11
28
SDA
SDA
DVDD
SCL
12
8
SCL
SCL
AVDD
3V3
24
2
ADR1
CAPP
16
4
ADR2
CAPM
17
5
MODE1
VNEG
18
MODE2
26
LDOO
XSMT
25
MUTE_N
XSMT
10
VCOM
15
TP41
GPIO3
14
3
GPIO4
CPGND
R53
13
27
GPIO5
DGND
0R
19
9
DAC_DOUT0
GPIO6
AGND
PCM5122
GND
GND
GND
MODE1 = 0, MODE2 = 1 => I2C MODE
I2C SLAVE ADDRESS = 0x4C
U12
22
6
DAC_DIN1
DIN
OUTL
BCLK
21
7
BCK
OUTR
LRCK
23
LRCK
3V3A
MCLK
20
SCK
1
CPVDD
SDA
11
28
SDA
DVDD
3V3
SCL
12
8
SCL
AVDD
3V3
24
2
ADR1
CAPP
16
4
ADR2
CAPM
R59
10K
17
5
MODE1
VNEG
18
MODE2
26
LDOO
XSMT
25
XSMT
10
VCOM
15
TP43
GPIO3
14
3
GPIO4
CPGND
R60
13
27
GPIO5
DGND
0R
19
9
DAC_DOUT1
GPIO6
AGND
PCM5122
GND
GND
GND
MODE1 = 0, MODE2 = 1 => I2C MODE
I2C SLAVE ADDRESS = 0x4D
DAC DOUT IS LOOPBACK I2S DATA FOR TESTING
MUTE_N IS DIGITAL SOFT MUTE
J25
2
AIN1
C120
10U
3
1
AIN2
C121
10U
SJ-3523-SMT
R78
R79
IN 1/2
GND
47K
47K
TIP - LEFT - CH1
RING - RIGHT - CH2
SLEEVE - GND
GND
GND
J26
2
AIN3
C126
10U
3
1
AIN4
C127
10U
SJ-3523-SMT
IN 3/4
GND
R81
R82
47K
47K
TIP - LEFT - CH3
RING - RIGHT - CH4
SLEEVE - GND
GND
GND
J27
2
AIN5
C130
10U
3
1
AIN6
C131
10U
SJ-3523-SMT
R84
R85
IN 5/6
GND
47K
47K
TIP - LEFT - CH5
RING - RIGHT - CH6
SLEEVE - GND
GND
GND
J28
2
AIN7
C136
10U
3
1
AIN8
C137
10U
SJ-3523-SMT
R87
R88
IN 7/8
GND
47K
47K
TIP - LEFT - CH7
RING - RIGHT - CH8
SLEEVE - GND
GND
GND
xcore.ai Multichannel Audio Board 1v1 Hardware Manual
J18
R49
470R
AOUT1
2
DAC_DIN2
R51
470R
AOUT2
3
3V3
1
C65
C66
SJ-3523-SMT
C69
2N2
2N2
GND
OUT 1/2
TIP - LEFT - CH1
2U2
RING - RIGHT - CH2
3V3
SLEEVE - GND
GND
GND
3V3
3V3A
TP42
C71
C72
C73
C74
C75
C76
DAC_DOUT2
2U2
100N
100N
4U7
100N
100N
GND
GND
GND
GND
GND
GND
J20
R55
470R
AOUT3
2
DAC_DIN3
R57
470R
AOUT4
TP36
3
TP37
3V3
1
C83
C84
TP38
SJ-3523-SMT
C87
2N2
2N2
GND
OUT 3/4
TIP - LEFT - CH3
2U2
RING - RIGHT - CH4
3V3
SLEEVE - GND
GND
GND
3V3
3V3A
TP44
C89
C90
C91
C92
C93
C94
DAC_DOUT3
2U2
100N
100N
4U7
100N
100N
GND
GND
GND
GND
GND
GND
U19
3
VINL1_VIN1P
4
VINR1_VIN2P
1
VINL2_VIN1M
2
VINR2_VIN2M
29
VINL3_VIN4P
30
VINR3_VIN3P
27
VINL4_VIN4M
28
VINR4_VIN3M
22
ADC_DAT1
MISO/GPIO0/DMIN2
ADC_GPIO
R80
33R
21
ADC_GPIO
GPIO1/INTA/DMIN
20
TP23
GPIO2/INTB/DMCLK
19
TP24
GPIO3/INTC
SDA
23
SDA
MOSI/SDA
SCL
24
SCL
MC/SCL
25
MS/AD
26
MD0
9
XO
10
XI
MCLK
15
MCLK
SCKI
BCLK
17
BCLK
BCK
LRCK
16
LRCK
LRCK
18
ADC_DAT0
DOUT
R83
PCM1865
0R
MD0 = 0 => I2C MODE
AD = 0 => I2C SLAVE ADDRESS = 0x4A
GND
GND
U20
3
VINL1_VIN1P
4
VINR1_VIN2P
1
VINL2_VIN1M
2
VINR2_VIN2M
29
VINL3_VIN4P
30
VINR3_VIN3P
27
VINL4_VIN4M
28
VINR4_VIN3M
22
ADC_DAT3
MISO/GPIO0/DMIN2
ADC_GPIO
R86
33R
21
GPIO1/INTA/DMIN
20
TP25
GPIO2/INTB/DMCLK
3V3
19
TP26
GPIO3/INTC
SDA
23
MOSI/SDA
SCL
24
MC/SCL
25
MS/AD
26
MD0
9
XO
10
XI
MCLK
15
SCKI
BCLK
17
BCK
LRCK
16
LRCK
18
ADC_DAT2
DOUT
R89
PCM1865
0R
MD0 = 0 => I2C MODE
AD = 1 => I2C SLAVE ADDRESS = 0x4B
GND
GND
U11
22
6
R50
470R
DIN
OUTL
BCLK
21
7
R52
470R
BCK
OUTR
LRCK
23
LRCK
3V3A
3V3
C67
MCLK
20
SCK
1
CPVDD
C70
SDA
11
28
SDA
DVDD
2N2
SCL
12
8
SCL
AVDD
2U2
24
2
ADR1
CAPP
16
4
ADR2
CAPM
GND
17
5
MODE1
VNEG
18
MODE2
26
3V3
LDOO
XSMT
25
XSMT
10
VCOM
15
GPIO3
14
3
GPIO4
CPGND
C77
C78
C79
R54
13
27
GPIO5
DGND
0R
19
9
GPIO6
AGND
2U2
100N
100N
PCM5122
GND
GND
GND
GND
GND
GND
MODE1 = 0, MODE2 = 1 => I2C MODE
I2C SLAVE ADDRESS = 0x4E
U13
22
6
R56
470R
DIN
OUTL
BCLK
21
7
R58
470R
BCK
OUTR
LRCK
23
LRCK
3V3A
3V3
C85
MCLK
20
SCK
1
CPVDD
C88
SDA
11
28
SDA
DVDD
2N2
SCL
12
8
SCL
AVDD
2U2
24
2
ADR1
CAPP
16
4
ADR2
CAPM
GND
17
5
MODE1
VNEG
18
MODE2
26
3V3
LDOO
XSMT
25
XSMT
10
VCOM
15
GPIO3
14
3
GPIO4
CPGND
C95
C96
C97
R61
13
27
GPIO5
DGND
0R
19
9
GPIO6
AGND
2U2
100N
100N
PCM5122
GND
GND
GND
GND
GND
GND
MODE1 = 0, MODE2 = 1 => I2C MODE
I2C SLAVE ADDRESS = 0x4F
xcore.ai Multi Channel Audio
Build
A
Date
17/08/2022
3V3
3V3A
3V3A
3V3
14
IOVDD
13
DVDD
C122
C123
C124
C125
8
AVDD
4U7
100N
4U7
100N
5
MICBIAS
GND
GND
11
LDO
6
VREF
12
DGND
C128
C161
C129
7
AGND
2U2
100N
2U2
GND
GND
GND
GND
3V3
3V3A
3V3A
3V3
14
IOVDD
13
DVDD
C132
C133
C134
C135
8
AVDD
4U7
100N
4U7
100N
5
MICBIAS
GND
GND
11
LDO
6
VREF
12
DGND
C138
C162
C139
7
AGND
2U2
100N
2U2
GND
GND
GND
GND
xcore.ai Multi Channel Audio
Build
A
Date
17/08/2022
J19
AOUT5
2
AOUT6
3
1
C68
SJ-3523-SMT
2N2
GND
OUT 5/6
TIP - LEFT - CH5
RING - RIGHT - CH6
SLEEVE - GND
GND
3V3A
C80
C81
C82
4U7
100N
100N
GND
GND
GND
J21
AOUT7
2
AOUT8
3
1
C86
SJ-3523-SMT
2N2
GND
OUT 7/8
TIP - LEFT - CH7
RING - RIGHT - CH8
SLEEVE - GND
GND
3V3A
C98
C99
C100
4U7
100N
100N
GND
GND
GND
Project Name
Sheet Name
Rev
DAC.SchDoc
1V1
Sheet
3
of
8
Project Name
Sheet Name
Rev
ADC.SchDoc
1V1
Sheet
4
of
8
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