mikroElektronika mikromedia for STM32 Manual page 29

C41 2.2uF
R65
100K
51
PB12
52
PB13
53
PB14
54
PB15
55
PD8
56
PD9
57
PD10
58
PD11
59
PD12
60
PD13
61
PD14
STM32F207VGT6
62
PD15
MP3-DREQ 63
PC6
STM32F407VGT6
MP3-RST# 64
PC7
MP3-CS# 65
PC8
MP3-DCS 66
PC9
67
PA8
68
PA9
69
PA10
70
PA11
71
PA12
72
PA13
73
VCAP
74
GND
75
VDD
C42
2.2uF
R4 R5
27 27
VCC-3.3
E8
10uF
VCC-3.3
AVCC
U1
25
VREF-1.8
PA2
24
PA1
23
PA0-WKUP
VCC-3.3
22
VDDA
21
VREF+
20
GNDA
19
VDD
18
PC3
17
PC2
16
PC1
15
PC0
14
NRST
13
OSC_OUT
12
OSC_IN
11
VDD
10
GND
9
PC15/OSC32_OUT
8
PC14/OSC32_IN
7
PC13/TAMPER_RTC
6
VBAT
5
PE6
4
PE5
3
PE4
2
PE3
1
PE2
R1 1M
X2
R66 100K
12.288MHz
C19
22pF
VCC-3.3 VCC-3.3 VCC-3.3 VCC-3.3 VCC-3.3
C5 C6 C7 C8 C31
100nF 100nF 100nF 100nF 100nF
decoupling
capacitors
Figure 8-3: Audio module connection schematics
VCC-3.3
VCC-1.8 VCC-1.8
R19
C4
10K
MP3-CS#
100nF
MP3-RST#
R2
10K
J3
J2
VCC-1.8
MP3-DCS 13
XDCS/BSYNC
14
IOVDD1
15
VC0
16
DGND1
17
XTAL0
18
XTAL1
VS1053
19
IOVDD2
20
DGND2
21
DGND3
22
DGND4
MP3-CS# 23
XCS
24
CVDD2
C20
22pF
VCC-3.3
R20
10K
R21 10K
Page 29
VCC-1.8 VCC-1.8 VCC-3.3 VCC-3.3 VCC-3.3 VCC-3.3
C9 C10 C11 C12 C23 C24 C26
100nF 100nF 100nF 100nF 100nF 100nF 100nF
decoupling
capacitors
R33
VCC-3.3
470
R32
U2
470
48
LN2
47
AGND3 R28
46 LEFT LEFT
LEFT
45
AVDD2
44
RCAP R29
43 RIGHT
AVDD1
42 GBUF
GBUF
41
AGND2
40
AGND1
39 RIGHT
RIGHT
38
AVDD0
37 C13
AGND0
R30 R31 R27
20 20 10
1uF
C15 C16 C14
10nF 10nF 47nF
R22
27
VCC-3.3
C27
100nF
E2 10uF
R
R18
C18
100K
3.3nF
E1 10uF
L
R17
C17
100K
3.3nF
CN2
10
10
PHONEJACK