1
1
2
2
3
3
4
4
D D
C C
B B
A A
Title
Number RevisionSize
A4
Date: 2015-1-8 Sheet of
File: E:\
红红
407\..udio.SchDoc Drawn By:
+
LS1
L1P
1
L1N
2
L2
3
R1P
4
R1N
5
R2
6
LRC
7
BCLK
8
ADCDAT
9
DACDAT
10
MCLK
11
DGND
12
DCVDD
13
DBVDD
14
CSB
15
SCLK
16
SDIN
17
MODE
18
AUXL
19
AUXR
20
OUT4
21
OUT3
22
ROUT2
23
SPKGND
24
LOUT2
25
SPKVDD
26
VMID
27
AGND
28
ROUT1
29
LOUT1
30
AVDD
31
MICBIAS
32
GND
33
U1
WM8978
SDA
1
SCL
2
MODE
3
W/R
4
VCC
5
GND
6
ROUT
7
LOUT
8
MPXO
9
ANT
10
U2
TEA5767A
C1
22uF
C5
22uF
R1
47K
R2
47K
GND
C7 1uF
C8 1uF
GND
GND
GND
T1
I2C_SDA
I2C_SCL
I2S_WS
I2S_CK
I2S_DA
I2S_MCLK
AU_CK
C4
100nF
C6
100nF
GND
GND
+5V
GND
V3.3
C10
100nF
C11
100nF
C12
100nF
C13
100nF
C9
22uF
GND
GND
V3.3
SCL
SDA
ACK
MCLK
3
2
1
J1
PA15
PB3
IS_DA
V3.3
R51
0R
R52
0R
2
2
3
3
5
5
1
1
4
4
P1
LINE_OUT
GND
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