Quectel EG25-G, Проектирование аппаратного обеспечения

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LTE Module Series
EG25-G Hardware Design
EG25-G_Hardware_Design 17 / 100
3.2.
Pin Assignment
The following figure shows the pin assignment of EG25-G module.
34
3
35 36 20 21 22 23 24 25 26 27 28 29 30 31 32 33
1
4
5
6
7
2
WAKEUP_IN
1)
AP_READY
RESERVED
W_DISABLE#
NET_MODE
1)
NET_ST ATUS
VDD_EXT
GND
GND
DBG_RXD
DBG_TXD
USIM_PRESENCE
USIM_VDD
USIM_DATA
USIM_CLK
USIM_RST
RESERVED
8
9
10
11
12
13
14
15
16
17
18
19
54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55
USIM_GND
G
N
D
R
E
S
E
T
_
N
P
W
R
K
E
Y
2
)
G
N
D
SD
_
IN
S
_
D
E
T
S
D
C
2
_
DA
T
A
3
S
D
C
2
_
D
A
T
A
2
S
D
C
2
_
D
A
T
A
1
S
D
C
2
_
D
A
T
A
0
S
DC
2
_
C
L
K
S
D
C
2
_
C
M
D
A
NT
_
D
IV
G
N
D
G
N
D
U
S
B
_
V
B
U
S
US
B
_
DM
U
S
B
_
DP
RX
D
T
X
D
D
T
R
R
T
S
C
T
S
DCD
RI
S
T
A
T
U
S
V
B
A
T
_
BB
V
B
A
T
_
BB
V
B
A
T
_
RF
V
B
A
T
_
RF
G
N
D
R
E
S
E
R
V
E
D
GND
GND
ANT_MAIN
GND
ANT_GNSS
GND
ADC1
RESERVED
I2C_SDA
I2C_SCL
ADC0
GND
GND
GND
73
74
75
76
77
78
79
80
81
82
83
84
100
101
102
106
107
111
112
103
104 109
105 110
89 94 98
88 93 97
86 91 96
85 90
95
99
87 92
108
1
1
3
R
E
S
E
R
V
E
D
R
E
S
E
R
V
E
D
117
126
125
124
123
122
121
118
127
128
1
1
5
U
S
B
_
B
O
O
T
1
)
R
E
S
E
R
V
E
D
1
1
6
140
137
1)
136
1)
135
134
133
132
131
130
129
1
1
4
V
D
D
_
S
D
IO
Power Pins Signal Pins
GND Pins
RESERVED
RESERVED
14 1
14 2
RESERVED
RESERVED
14 3
14 4
119
120
WLAN Pins RESERVED Pins
Bluetooth Pins
P
C
M
_
IN
3
)
P
C
M
_
O
UT
3
)
P
C
M
_
S
Y
NC
3
)
P
C
M
_
C
L
K
3
)
BT_CTS
1)
*
BT_RXD*
BT_TXD*
BT_RTS*
139*
138
1)
SGMII Pins
Figure 2: Pin Assignment (Top View)
1.
1) means that these pins cannot be pulled up before startup.
2.
2) PWRKEY output voltage is 0.8V because of the diode drop in the Qualcomm chipset.
3.
3)
means these interface functions are only supported on Telematics version.
4.
Pads 37~40, 118, 127 and 129~139 are used for wireless connectivity interfaces, among which pads
118, 127 and 129~138 are WLAN function pins, and the rest are Bluetooth (BT) function pins. BT
function is under development.
5.
Pads 119~126 and 128 are used for SGMII interface.
NOTES