5
5
4
4
3
3
2
2
1
1
D
D
C
C
B
B
A
A
USB
LDO
AU7840-RST
AUXIN
AU7840
EEPROM
LQFP48
POWER
KEY
VOL Manage
<Doc>
<RevCode>
<Title>
B
1
2
Monday, September 20, 2010
Title
Size
Document Number
Rev
Date:
Sheet
of
GN
D
RS
T
GN
D
LED
2
GN
D
VDD33
AD
VDD33
V
DD1
8
GN
D
GND
SDA
VREF3
AU
XL-R
VDD18
SCL
HP-L
LED
1
GPI
OA4
AVDD33
AVDD33
AVDD18
HP
-R
DM
DP
GPB2
RST
LINE-L-R
AUXL-R
SDA
SCL
100K
100K
HP-L
HP-R
L+R
GPI
OA7
VDD33
AU
XEN
ST
ABY
GPB5
GPB4
GPB3
AVSS
3.4V
检测
GPIOA7
L+R
L-L
R-R
STABY
LOUT
ROUT
CHSW
CHS
W
DM
DP
VREF1
L-L
LOUT
VREF2
R-R
ROUT
VREF
GPB5
GPB4
GPB3
GPB2
AD
GPIOA4
LED1
LED2
LINE-L-R
AUXEN
VREF1
VREF2
VREF
USBVCC5V
USBVCC5V
VCC
VCC
VDD18
VDD33
VCC
VDD33
VDD33
VDD33
AVDD33
AVDD18
AVDD33
VDD33
AVDD18
VREF3
VDD33
VDD5V
VDD33
VDD5V
VCC
DD5V
VDD18
DD5V
VDD33
AVDD33
AVDD33
R28
4.7R
D4
TVS
R32 10K
C27
104
R12
4.7K
C33
105
Y1
12M
C6
15P
R21
1K
C44
2.2UF
C31
15P
D2
IN5819
C57
104
L9
100M600R
C53
100P
C19
2.2UF
R5
1K
SW1
模式
R9
15K
C50
2.2UF
C45
470PF
R11
4.7K
C41
105
C56
22P
C10
22P
U2
AU7840
22
7
11
5
6
12
8
9
10
1
2
3
4
13
14
15
30
29
28
27
26
25
24
23
16
17
18
38
19
20
21
37
36
35
34
33
32
31
41
40
39
42
43
44
45
46
47
48
GPI
O_A5
ADC_CH1
VDD33
AVDD33
REXT100K
XIN
AVDD18
USB_DM
USB_DP
DAC_VSS
HPOUTL
DAC_VDD33
DAC_VREF
XOU
T
GPI
O_A0
GPI
O_A1
GPIO_C1
GPIO_C0
SD_DATO
SD_CMD
SD_CLK
GPIO_B2
GPI
O_A7
GPI
O_A6
GPI
O_A2
GPI
O_A3
V
DD1
8
GPI
O_B4
VSS
R
ESET
_N
GPI
O_A4
GPI
O_B3
GPIO_D0
VDD33
GPIO_C3
GPIO_C2
VDD18
VSS
GPI
O_B7
GPI
O_B6
GPI
O_B5
GPI
O
_D
1
MO
D1
MO
D0
T
EST
AU
XI
N
_R
AU
XI
N
_L
HP
O
U
TR
R55
10K
D1
LED BI-COLOUR
C34
100P
R36
4.7K
C59
22P
R16
100K
CON1
CON_4
2
1
3
4
D-
VBUS
D+
GND
SW2
播放暂停
C7
470UF
C48
104
R56
10K
C64
22P
L10
100M600R
R44
1K
C51
104
C13
100P
R45
NC
R38
4.7K
L3
100M600R
C36
105
U1
FT24C02
1
2
3
4
5
6
7
8
A0
A1
NC
GND
SDA
SCL
WP
VCC
L7
100M600R
C26
104
SW3
上一曲
C22
100P
C47
104
C20
104
U3
AP2201
3
2
1
IN
OUT
GN
D
C32
15P
C24
22P
C40
22P
L11
100M600R
R41
4.7K
USBJACK1
USB-mini B Type
1
2
3
4
5
8
7
6
9
VCC--
DM--
DP--
NC--
GND--
G
GG
G
L8
100M600R
C14
105
SW4
下一曲
R7
22R
C4
105
R3
4.7K
C2
22P
L2
100M
600R
R37
0R
R35
2.2K
R17
1MR
C46
470UF
R13
10K
R6
4.7K
R42
NC
BT1
BATTERY
C35
105
C29
150P
U4
SU3301-1.8V
3
1
2
IN
OUT
GN
D
D5
TVS
C17
2.2UF
C12
100P
L4
CD34@47UH
C60
22P
C3
105
C52
105
C49
104
U7
AP5054
3
4
5
2
1
BAT
VCC
PROG
G
CHG
C38
2.2UF
C16
105
R34
10K
R10
15K
R27
1K
R8
4.7K
J1
VR-SW
1
2
3
4
5
VIN
VOUT
SIN
GND
OU
T
L5
100M600R
R22
1K
C61
22P
C9
22P
R20
24K
R24
100K
C58
104
R29
1K
C63
22P
R25
4.7K
R40
15K
C21
105
R2
470R
R4
22R
L13
100M600R
L1
100M600R
U6
SU3301-3.3V
3
1
2
IN
OUT
GN
D
R31
10K
R1
30k
C62
22P
R14
22K
Q1
2N3904
R30
NC
C43
22P
R18
2.2K
C18
104
R23
100K
C25
470UF
C1
22P
C15
2.2UF
C55
104
R43
1K
C42
105
C8
22P
R26
4.7K
R46
33K
C28
104
C11
22P
C5
104
U5
C
M
8608
1
2
3
4
5
6
7
8
OU
T
A
INA
N
INA
P
VSS
INB
P
INB
N
OU
T
B
VD
D
R33
4.7K
Q2
NC
C23
2.2UF
L6
100M600R
C37
104
R19
4.7K
C30
105
C54
2.2UF
ROUT
LOUT
STABY
