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7-10
A
Main Board Circuit Diagram: STA309A
1
SDA
MCU_SDA
9
SCL
MCU_SCL
9
ASDAT2
I2S_DOUT2
5
ASDAT1
I2S_DOUT1
5
ASDAT0
I2S_DOUT0
5
LRCLK
I2SLRCK
5
BLCK
I2SBCLK
5
MLCK
I2SMCLK
5
AMP_MUTE
AMP_MUTE
9
RESET
RESET
DSP_RESET
9
2
PDWN
SDA
PDN
9
SCL
ASDAT2
ASDAT1
ASDAT0
FB711
FB711
+3.3V
LRCLK
500/800mA
500/800mA
BLCK
MLCK
DV33
FB712
FB712
VD3.3V
500/800mA
500/800mA
+
+
C731
C731
CE717
CE717
0.1uF/25V/Y5V
0.1uF/25V/Y5V
22uF/16V
22uF/16V
D
D
D
3
4
A
B
VD3.3V
D705
D705
Q702
Q702
LL4148
LL4148
PNP_MMBT8550CLT1
PNP_MMBT8550CLT1
R739
R739
47K
47K
+
+
CE723
CE723
100uF/10V
100uF/10V
AMP_MUTE
R805
R805
4.7K
4.7K
Q701
Q701
NPN_3DG3904M
NPN_3DG3904M
VD3.3V
R796
R796
47K
47K
D
TP42
TP42
C713
C713
0.1uF/25V/Y5V
0.1uF/25V/Y5V
R701
R701
33
33
R703
R703
33
33
R702
R702
33
33
D
R709
R709
33
33
R708
R708
33
33
R707
R707
33
33
R706
R706
33
33
R705
R705
33
33
R704
R704
33
33
R798
R798
VD3.3V
10K
10K
R713
R713
R777
R777
10K
10K
10K
10K
B
C
VD3.3V
C716
C716
0.1uF/25V/Y5V
0.1uF/25V/Y5V
D
C714
C714
C715
C715
EAPD
0.1uF/25V/Y5V
0.1uF/25V/Y5V
0.1uF/25V/Y5V
0.1uF/25V/Y5V
R767
R767
PDWN
R711
R711
33
33
1K
1K
U703
U703
R712
R712
10K
10K
1
48
MOV
OUT2A
2
47
GND
OUT2B
3
46
VDD3.3
NC
4
45
GND
GND
5
44
NC
VDD
6
43
SDI_78
OUT3A
7
42
SDI_56
OUT3B
8
STA309A
STA309A
41
C721
C721
SDI_34
OUT4A
9
40
SDI_12
OUT4B
10
39
LRCK1
OUT5A
11
38
BICK1
OUT5B
12
37
VDD3.3
NC
13
36
GND
GND
14
35
NC
VDD3.3V
15
34
RESET
OUT6A
16
33
PLLB
OUT6B
C710
C710
C712
C712
C723
C723
47pF/50V/NP0
47pF/50V/NP0
D
D
D
C724
C724
0.1uF/25V/Y5V
0.1uF/25V/Y5V
D
VD3.3V
R714
R714
FB715
FB715
500/800mA
500/800mA
3.3K
3.3K
+
+
C727
C727
CE704
CE704
C726
C726
22uF/16V
22uF/16V
0.1uF/25V/Y5V
0.1uF/25V/Y5V
0.1uF/25V/Y5V
0.1uF/25V/Y5V
C730
C730
C729
C729
C728
C728
R799
R799
0
0
D
C
7-10
D
11
VD3.3V
CH1A
11
C717
C717
11
CH2A
0.1uF/25V/Y5V
0.1uF/25V/Y5V
11
CH3A
CH4A
11
D
C733
C733
CH5A
11
C732
C732
VD3.3V
47pF/50V/NP0
47pF/50V/NP0
C720
C720
C719
C719
+
+
C718
C718
47pF/50V/NP0
47pF/50V/NP0
0.1uF/25V/Y5V
0.1uF/25V/Y5V
CE721
CE721
22uF/16V
22uF/16V
11
CH6A
CH6B
11
D
C725
C725
47pF/50V/NP0
47pF/50V/NP0
D
E
1
2
3
4
E
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