C41
2.2uF
R65
100K
PB12
51
PB12
SCK2-PB13
52
PB13
MISO2-PB14
53
PB14
MOSI2-PB15
54
PB15
PD8
55
PD8
PD9
56
PD9
PD10
57
PD10
PD11
58
PD11
PD12
59
PD12
PD13
60
PD13
PD14
61
PD14
SD-CD#
62
PD15
MP3-DREQ
63
PC6
MP3-RST#
64
PC7
MP3-CS#
65
PC8
MP3-DCS
66
PC9
PA8
67
PA8
USB-DET
68
PA9
PA10
69
PA10
USB-D_N
70
PA11
USB-D_P
71
PA12
TMS
72
PA13
73
VCAP
74
GND
75
VDD
C42
2.2uF
R4
27
VCC-3.3
R19
10K
MP3-CS#
MP3-RST#
R2
10K
VCC-1.8
MP3-DCS
13
XDCS/BSYNC
14
IOVDD1
15
VC0
16
DGND1
17
XTAL0
18
XTAL1
19
IOVDD2
R1 1M
20
DGND2
21
DGND3
22
X2
DGND4
MP3-CS#
23
XCS
24
CVDD2
12.288MHz
C19
C20
22pF
22pF
VCC-3.3
R20
10K
R21 10K
VCC-BAT
R6
4K7
R49
4K7
VSENSE
R34
4K7
VCC-3.3
R39
4K7
VCC-3.3
VCC-3.3
R35
R36
LD2
10K
10K
CHARGE
STAT
Q4
BC846
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PA2
PA1
PA0-WKUP
VDDA
VREF+
GNDA
VDD
PC3
PC2
PC1
STM32F207VGT6
PC0
NRST
OSC_OUT
STM32F407VGT6
OSC_IN
VDD
GND
PC15/OSC32_OUT
PC14/OSC32_IN
PC13/TAMPER_RTC
VBAT
PE6
PE5
PE4
PE3
PE2
R5
R66 100K
27
VCC-3.3
U2
48
LN2
47
AGND3
46
LEFT
LEFT
45
AVDD2
44
RCAP
43
VS1053
AVDD1
42
GBUF
GBUF
41
AGND2
40
AGND1
39
RIGHT
RIGHT
38
AVDD0
C13
37
AGND0
R30
20
1uF
C15
10nF
R22
VCC-3.3
27
C29
2.2uF
U3
1
Vin
2
GND
3
EN
AP7331-ADJ
VCC-USB
VCC-BAT
R43
10K
CN1
BATT CONN
M1
DMP2160UW
VCC-BAT
VCC-3.3
VCC-BAT
E7 10uF
R45
1K
U5
R37
R38
1
STAT
PROG
2
10K
10K
VSS
3
E5
VBAT
VDD
Q5
10uF
BC846
MCP73832
Charging Current approx. 250mA
VCC-3.3
RST
AVCC
T2
U1
25
PA2
VREF-1.8
24
PA1
23
VSENSE
VCC-3.3
22
21
20
19
J3
18
PC3
17
PC2
16
PC1
J2
15
PC0
14
RST
13
R7 100
12
11
10
9
OSC32_OUT
8
OSC32_IN
X1
7
STAT
6
5
T-D6
32.768KHz
4
T-D5
C1
C2
22pF
22pF
3
T-D4
2
T-D3
1
T-D2
VCC-3.3
VCC-3.3 VCC-3.3 VCC-3.3 VCC-3.3
E8
C5
10uF
100nF
E2
10uF
R33
R
470
R18
C18
100K
3.3nF
R32
E1
10uF
L
470
R17
C17
100K
3.3nF
CN2
R28
10
LEFT
R29
10
RIGHT
PHONEJACK
R31
R27
VCC-1.8
VCC-1.8
20
10
C16
C14
C4
10nF
47nF
100nF
VCC-1.8
VCC-3.3
VCC-3.3
E10
C12
C23
VCC-1.8
100nF
100nF
10uF
R47
5
Vout
120K
4
ADJ
R46
22K
R50
12K1
D1
PMEG3010ER
VCC-SYS
VCC-SYS
C40
VCC-SYS
R26
2.2uF
2K2
5
LD1
E3
4
POWER
10uF
R44
3K9
VCC-3.3
VCC-SYS
R8
10K
PA1
PA2
PA3
AN
PA4
PA5
T1
C3
PA6
100nF
PC0
PC1
PC2
INT
PC3
PC4
PC5
SCL2-PB10
SDA2-PB11
PB12
SCK2-PB13
MISO2-PB14
AVCC
VCC-3.3
MOSI2-PB15
FP4
PD0
SCK3-PC10
MISO3-PC11
MOSI3-PC12
C36
C25
2.2uF
100nF
VCC-3.3
VREF-1.8
VCC-1.8
FP3
C30
C34
2.2uF
100nF
VCC-3.3
VCC-3.3
C6
C7
C8
C31
100nF
100nF
100nF
100nF
Schematic
continues
overleaf
FLASH-CS#
MISO3-PC11
R59
VCC-1.8
VCC-1.8
C9
C10
C11
100nF
100nF
100nF
VCC-3.3
VCC-3.3
VCC-3.3
C24
C26
C27
100nF
100nF
100nF
SD-CS#
MOSI3-PC12
SCK3-PC10
MISO3-PC11
SD-CD#
VCC-3.3
CN5
1
2
TMS
3
4
TCK
5
6
TDO
TRST
7
8
TDI
9
10
RESET#
JTAG
VCC-3.3
R62 100
REG1
USB-DET
1
USB-D_N
Vin
2
USB-D_P
GND
3
Vout
LD29080DT33
E4
10uF
DATA BUS
HDR1
HDR2
RST
1
27
2
28
L
3
29
R
4
30
PA7
5
31
PA8
6
PWM
32
PA10
7
33
PD14
8
34
PB5
9
35
PD1
10
36
PD2
11
37
PD4
12
38
PD8
13
39
PD9
14
40
PD10
15
41
PD11
16
42
PD12
17
43
PD13
18
44
PE13
19
45
PE14
20
46
U2Rx-PD6
RX
21
47
SCK
U2Tx-PD5
TX
22
48
SDI
SCL1-PB6
SCL
23
49
SDO
SDA1-PB7
SDA
24
50
25
VCC-3.3
51
26
52
M1X26
M1X26
VCC-3.3
R12
R13
10K
10K
SCL1-PB6
U9
1
13
SDA1-PB7
VCC
SDA
2
12
ACC ADDRESS
GND
ADD
3
11
VCC-3.3
Res
Res
4
10
GND
NC
5
9
GND
INT2
J1
6
8
1
VCC
INT1
2
3
ADXL345
VCC-3.3 VCC-3.3
C33
C32
100nF
100nF
VCC-3.3
VCC-3.3
VCC-3.3
C37
R48
10K
100nF
U10
1
8
CS
VCC
2
7
SDO
HOLD
3
6
SCK3-PC10
27
WP
SCK
4
5
MOSI3-PC12
GND
SDI
M25P80
VCC-MMC
VCC-3.3
FP1
FERRITE
C38
E6
100nF
10uF
VCC-MMC
CN4
R11
R10
R9
10K
10K
10K
1
CS
2
Din
4
+3.3V
5
SCK
6
GND
R16
7
Dout
27
CD
MMC CARD MICRO
VCC-USB
CN3
FP2
FERRITE
1
VBUS
2
D-
3
D+
4
ID
5
GND
R64
C28
100K
10nF
USB MINIB
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