User's Manual

Smart Machine Smart Decision
SIM5320_Hardware Design_V1.01 2011-11-10
52
Appendix
A. System Design
C103C102C101
VBAT_RF
VBAT_RF
VBAT_BB
Power supply
100uF
100nF 22pF
UART_TXD
UART_RXD
UART_CTS
UART_RTS
UART_RI
UART_DCD
UART_DTR
C109
220nF
V_USIM
USIM_RESET
USIM_CLK
USIM_DATA
VBAT_BB
62
63
38
39
C105C104
100uF
100nF
Power supply
61
64
GND
GND
37
40
GND
GND
POWER_ON
RESET
3
4
Reset impulse
20~200ms
4.7K
47K
Turn on/off impulse
>50ms
UART_TXD
UART_RXD
UART_CTS
UART_RTS
UART_RI
UART_DCD
UART_DTR
71
68
67
66
69
70
72
23
1
GND
GND
0R
C107C106
Main Antenna
NC
NC
MAIN_ANT
59
58
GND
GND
57
C107
GPS Antenna
33pF
GPS_ANT
79
78
GND
GND
77
NC
L101
NC
L102
GND
80
GND
60
SIM_DATA
SIM_VDD
SIM_RST
SIM_CLK
SMF05C
NC
24
26
25
22
21
GPIO4
USB_VBUS
RF ON/OFF
11
12
GPIO1
10K
10K
300R
LED
Network
Status
USB_DP
13
32
USB_DM
USB_VBUS
USB_DM
USB_DP
28
27
31
36
29
33
35
30
36
GPIO15
GPIO13
GPIO14
GPIO12
GPIO10
GPIO11
GPIO9
GPIO7
GPIO8
GPIO6
76
74
75
73
6
7
9
8
45
SPI_CLK_N
SPI_MISO_DATA
SPI_CS
SPI_MOSI_DATA
LCD_DRV_N
LCD
Display
52
54
VREG_AUX
VREG_AUX
44
IIC_SCL
I2C_SCL
55
IIC_SDA
I2C_SDA
56
ADC1
HKADC
Input range:0-2.2V
ADC2
47
46
Reserve
Reserve
15
16
VRTC
17
19
18
20
42
C108
If RTC is unused， keep
VRTC pin open.
GPIO40
51
53
50
48
49
GPIO41
GPIO42
GPIO43
GPIO44
5
GND
GND
2
10
14
GND
GND
43
GND
GND
41
65
DC Output:1.75-3V
R102
R103
R104
R105
R106
R107
TVS
If USB interface is used， connect
USB_VBUS to DC 4.4V-5.25V
100uF
FB101
300 OHM
Ferrite Beads Rated current > 2A
Module status indicator
HOST_WAKEUP
MODULE_WAKEUP
TVS
NC
NC
NC
NC
NC
NC
NC
NC
NC
Figure 36: System design