Schematic

MIDI-OUT-PIN2
AK4618VQ
GND
1.0uF
0.1uF
1.0uF
0.1uF
1.0uF
GND
0.1uF 1.0uF 1.0uF
1.0uF
1.0uF
1.0uF
1.0uF 1.0uF1.0uF
1.0uF
1.0uF
100k
100k
100k
100k
100k
100k
GND
GND
GND GND
AUDIO I/O
AOUT5L
AOUT5R
GND
1.0uF
1.0uF
100k
100k
AIN2L
AIN2R
10
10
10
10
10
10
10
10
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
GND
100
100
100
100
100
GND
GND
MBRA140
220
GND
220
3.3V
6N138M
220
220
3.3V
GND
74AHC1G125
3.3V
GND
MIDI
VCCA
3.3V
VCCA
LRCLK
1
STDI6/TDMI
2
STDI5
3
STDI4
4
STDI3
5
STDI2
6
STDI1
7
PDN
8
IN1N
9
IN1/IN1P
10
IN2N
11
IN2/IN2P
12
IN3N
13
IN3/IN3P
14
IN4N
15
IN4/IN4P
16
MICBIAS
17
AVDD1
18
VSS1
19
VCOM
20
IN5N
21
IN5/IN5P
22
IN6N
23
IN6/IN6P
24
ROUT6
25
LOUT6
26
ROUT5
27
LOUT5
28
ROUT4
29
LOUT4
30
ROUT3
31
LOUT3
32
ROUT2
33
LOUT2
34
ROUT1
35
LOUT1
36
BICK
48
MCLK
47
SCL
46
SDA
45
STDO3
44
STDO2
43
STDO1
42
REGO
41
VSS3
40
TVDD
39
VSS2
38
AVDD2
37
U4
C36
C37
C33
C35
C38
C31 C32 C34
C40
C43
C45
C41 C29C30
C44
C46
R31
R32
R33
R34
R35
R36
JP3
JP1
J14
1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 16
17 18
19 20
TP3
TP4
JP2
C39
C42
R30
R29
TP1
TP2
R37
R38
R39
R40
R41
R42
R43
R44
C47
C48
C49
C50
C51
C52
C53
C54
R24
R25
R26
R27
R28
J13
D3
R45
R48
U6
C
3
A
2
VCC
8
VOUT
6
GND
5
R47
R46
U5
/OE
1
A
2
GND
3
VCC
5
Y
4
J15
1
2
3
4
5
I2C_SDA/1.??
I2C_SCK/1.??
BCLK/1.??
LRCK/1.??
MCLK/1.??
APDN/1.??
TDMO/1.??
TDMI/1.??
AIN1L
AIN1L AIN1R
AIN1R
MIN/1.??
MIDI-IN-PIN4
MIDI-IN-PIN4
MIDI-OUT-PIN4
MIDI-OUT-PIN4
MOUT/1.??
MIDI-IN-PIN5
MIDI-IN-PIN5
MIDI-OUT-PIN5
MIDI-OUT-PIN5
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