User's Manual

A7608SA-H_User Manual_V1.00
2022-08-26
Smart Machine Smart Decision
380
280
280
300*4=1200
Appendix
A. Reference Design
Refer to < SIM7600 Reference Design V1.X.pdf > for the details.
Main Antenna
GNSS Antenna
TVS
LXES15AAA1-153
R102
0R
NC NC
82
MAIN_ANT
GNSS_ANT
79
L101
C108
L102
Power supply
VBAT
C106
C101
C102
C107
C103
57
GND
58
GND
60
GND
62
VBAT
63
VBAT
61
GND
GND
GND
AUX_ANT
77
NC
78
80
59
41
33pF
C104
NC
R101 0R
C105
Div Antenna
100uF
100uF
1uF
GND
64
GND
3
POWERKEY
GND
NETLIGHT
51
R106
10K
NC
NC
R105
300R
Network
VBAT
Power supply
Turn on/off impulse
R103
4.7K
R104
47K
SIM7600E
FLIGHTMODE
54
R107
10K
RF ON/OFF
LED
Status
Reset impulse
UART_TXD
UART_RXD
RESET
TXD
RXD
USB_VBUS
USB_DN
USB_DP
11
USB_VBUS
12
USB_DN
13
USB_DP
If USB interface is used， Connect
USB_VBUS to 3.0V-5.25V
UART_CTS
UART_RTS
CTS
RTS
SDIO_DATA1
27
SDIO_DATA2
28
UART_RI
RI
SDIO_CMD
29
UART_DCD
UART_DTR
SIM_DATA
SIM_RST
DCD
DTR
USIM_DATA
USIM_CLK
18
SDIO_DATA0
30
SDIO_DATA3
31
SDIO_CLK
32
GPIO3
33
SIM_VDD
C109
TVS
USIM_RST
20
USIM_VDD
GPIO6
34
HSIC_STROBE
35
220nF
ESDA6V1W5
HSIC_DATA
36
23
SD_DATA1
24
SD_DATA2
GPIO77
87
PCM_IN
74
Audio CODEC Chip
26
SD_CLK
PCM_SYNC
75
or
VDD_EXT
25
SD_DATA3
22
SD_DATA0
21
SD_CMD
44
VDD_EXT
PCM_OUT
73
PCM_CLK
76
SPI_CLK
6
DSP
LDO Output:1.75-3.05V
49
STATUS
52
GPIO41
53
USIM_DET
50
SPI_MISO
7
SPI_MOSI
8
SPI_CS
9
ISINK
45
SCL
55
I2C_SCL
GPIO43
48
SD1_DET
1
GND
2
GND
5
GND
10
GND
14
GND
37
GND
SDA
56
ADC1
47
ADC2
46
VBAT
38
VBAT
39
VDD_1V8
15
USB_ID
16
I2C_SDA
ADC
Input range:0.1~1.7V
VBAT
Power supply
40
GND
43
GND
65
GND
81
GND
NC
42
C111
100uF
C112
C113
100nF
83
COEX1
84
COEX2
86
COEX3
BOOT_CFG0
85
Test Points
100uF
LCD
Display
4
71
68
67
66
69
70
72
17
SIM_CLK
19