Quectel LTE Standard Module Series Reference Design

1.0
EG21-G
TITLE
PROJECT
Reference Design
A2
2019/12/5
DATE314
VER
SIZE
Quectel Wireless Solutions
B
C
D
6543 21
D
C
B
A
SHEET
1
23
4
5
6
A
OF
DRAWN BY
CHECKED BY
Woody WU
Lorry XU
Module Interface
1. Keep all RESERVED and unused pins unconnected, and ensure all GND pins are connected to the ground network.
Notes:
2. Pins 73
～84 are unused in the design, and can be ignored in schematic and PCB decal.
3. A common mode choke L0101 is recommended to be added in series between the module and customers' MCU in order to
Meanwhile, it is recommended to reserve the test points for upgrading the firmware over USB interface and minimize the
4. ADC pins cannot be directly connected to the module's power supply and the input voltage must not exceed VABT_BB.
5. C0101 and C0102 should be placed close to the SGMII interface of the module.
Note 3
Note 6
Note 4
EG21-G
EG21-G
Note 5
extra stubs of the trace. The two resistors should be placed close to the module.
suppress EMI spurious transmission, and should be placed close to the module.
6. Do not pull up pin1,pin5, pin40,pin136,pin137and pin138 unless the module starts up sucessfully.
Meanwhile, these pins should be served as a keepout area.
R0111 NM_0R
R0109
NM_0R
R0113
100K
R0114
100K
R0116
100K
R0115
100K
R0118
0R
R0120
0R
R0122
0R
R0124
0R
R0108
0R
R0104 0R
R0106
0R
R0102 0R
1
WAKEUP_IN
2
AP_READY
3
RESERVED
4
W_DISABLE#
5
NET_MODE
6
NET_STATUS
7
VDD_EXT
8
GND
9
GND
10
USIM_GND
11
DBG_RXD
12
DBG_TXD
13
USIM_PRESENCE
14
USIM_VDD
15
USIM_DATA
16
USIM_CLK
17
USIM_RST
18
RESERVED
19
GND
20
RESET_N
21
PWRKEY
22
GND
23
SD2_INS_DET
24
PCM_IN
25
PCM_OUT
26
PCM_SYNC
27
PCM_CLK
28
SDC2_DATA3
29
SDC2_DATA2
30
SDC2_DATA1
31
SDC2_DATA0
32
SDC2_CLK
33
SDC2_CMD
34
VDD_SDIO
35
ANT_DIV
36
GND
37
RESERVED
38
RESERVED
39
RESERVED
40
RESERVED
41
I2C_SCL
42
I2C_SDA
43
RESERVED
44
ADC1
45
ADC0
46
GND
47
ANT_GNSS
48
GND
49
ANT_MAIN
50
GND
51
GND
52
GND
53
GND
54
GND
55
RESERVED
56
GND
57
VBAT_RF
58
VBAT_RF
59
VBAT_BB
60
VBAT_BB
61
STATUS
62
RI
63
DCD
64
CTS
65
RTS
66
DTR
67
TXD
68
RXD
69
USB_DP
70
USB_DM
71
USB_VBUS
72
GND
115
USB_BOOT
116
RESERVED
113
RESERVED
114
RESERVED
141
RESERVED
142
RESERVED
143
RESERVED
144
RESERVED
U0101-A
85
GND
86
GND
87
GND
88
GND
89
GND
90
GND
91
GND
92
GND
93
GND
94
GND
95
GND
96
GND
97
GND
98
GND
99
GND
100
GND
101
GND
102
GND
103
GND
104
GND
105
GND
106
GND
107
GND
108
GND
109
GND
110
GND
111
GND
112
GND
117
RESERVED
118
RESERVED
119
EPHY_RST_N
120
EPHY_INT_N
121
SGMII_MDATA
122
SGMII_MCLK
123
SGMII_TX_M
124
SGMII_TX_P
125
SGMII_RX_P
126
SGMII_RX_M
127
RESERVED
128
USIM2_VDD
129
RESERVED
130
RESERVED
131
RESERVED
132
RESERVED
133
RESERVED
134
RESERVED
135
RESERVED
136
RESERVED
137
RESERVED
138
RESERVED
139
RESERVED
140
RESERVED
U0101-B
C0101
100nF
C0102
100nF
12
34
L0101
DLM0NSN900HY2D
[6]
USIM_GND
[14]
DBG_RXD
[14]
DBG_TXD
[6]
USIM_VDD
[6]
USIM_CLK
[6]
USIM_RST
[6]
USIM_DATA
[4,5,6,11,13,14]
VDD_EXT
[14]
NET_STATUS
[14]
NET_MODE
[4]
W_DISABLE_EG21-G
[4]
AP_READY_EG21-G
[4]
RESET_N
[4,14]
PWRKEY
[10]
ANT_DIV
[10]
ANT_MAIN
[10]
ANT_GNSS
[4,14]
USB_VBUS
[6]
RXD_EG21-G
[6]
TXD_EG21-G
[6]
DTR_EG21-G
[6]
RTS_EG21-G
[6]
CTS_EG21-G
[6]
DCD_EG21-G
[6]
RI_EG21-G
[14]
STATUS
[3,5,14]
VBAT
[3,5,14]
VBAT
[6]
USIM_PRESENCE
[7,8]
CODEC_PCM_IN
[7,8]
CODEC_PCM_OUT
[7,8]
CODEC_PCM_SYNC
[7,8]
CODEC_PCM_CLK
[7,8]
I2C_SDA
[14]
USB_DM_TEST
[14]
USB_DP_TEST
ADC0_INPUT
ADC1_INPUT
[7,8]
I2C_SCL
[14] USB_BOOT
[4]
WAKEUP_IN_EG21-G
[13]
SD2_INS_DET
[13]
SD2_DATA3
[13]
SD2_DATA2
[13]
SD2_DATA1
[13]
SD2_DATA0
[13]
SD2_CLK
[13]
SD2_CMD
[13]
VDD_SDIO
[11]
USIM2_VDD
[11]
SGMII_RX_M
[11]
SGMII_RX_P
[11]
SGMII_TX_P
[11]
SGMII_TX_M
[11]
SGMII_MDIO_CLK
[11]
SGMII_MDIO_DATA
[11]
EPHY_INT_N
[11]
EPHY_RST_N
[4]
USB_DP
[4]
USB_DM

Quectel LTE Standard Module Series Specifications

General

Brand	Quectel
Model	LTE Standard Module Series
Category	Wireless modules
Language	English