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EC25
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Quectel Wireless Solutions
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2016/11/11
A2
Module Interface
6. Keep all RESERVED and unused pins unconnected, and all GND pins are connected to the ground network.
Notes:
5. C101/C102 must be close to the SGMII interface of the module.
1. It is recommended to reserve the test points for upgrading the firmware over USB interface and
4. ADC pin can not be directly connected to the power supply and must not exceed the voltage range.
2. Do not pull up WAKEUP_IN_MODULE unless the module starts up sucessfully.
Note 1
Note 2
Note 3
Note 5
3. Do not pull up NTE_MODE unless the module starts up sucessfully.
Note 4
minimizing the stub length of USB test signals.
8. PCM_***_BT network is used for the communication with FC20 module and
CODEC_PCM_*** network is used for the communication with CODEC.
FC20 and CODEC can not be connected to the same PCM
interface at the same time.
Reference Design
7. Pin 73～84 are unused in the design. You can ignore them in schematic, PCB decal and the keepout area of pin 73～84.
R112
0R
R110
0R
R111
NM_0R
R109
NM_0R
R113
100K
R114 100K
R116
100K
R115
100K
C101
100nF
C102
100nF
R117
NM_0R
R118
0R
R119
NM_0R
R120
0R
R121
NM_0R
R122
0R
R123
NM_0R
R124
0R
R107
NM_0R
R103
NM_0R
R105
NM_0R
R108
0R
R104
0R
R106
0R
R101
NM_0R
R102
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
RESERVED
24
PCM_IN
25
PCM_OUT
26
PCM_SYNC
27
PCM_CLK
28
RESERVED
29
RESERVED
30
RESERVED
31
RESERVED
32
RESERVED
33
RESERVED
34
RESERVED
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
U101-A
EC25
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
WLAN_SLP_CLK
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
PM_ENABLE
128
USIM2_VDD
129
SDC1_DATA3
130
SDC1_DATA2
131
SDC1_DATA1
132
SDC1_DATA0
133
SDC1_CLK
134
SDC1_CMD
135
WAKE_ON_WIRELESS
136
WLAN_EN
137
COEX_UART_RX
138
COEX_UART_TX
139
BT_EN
140
RESERVED
U101-B
EC25
[4] USIM_GND
[10] DBG_RXD
[10] DBG_TXD
[4] USIM_VDD
[4] USIM_CLK
[4] USIM_RST
[4] USIM_DATA
[2,4,7,9,10] VDD_EXT
[10] NET_STATUS
[10] NET_MODE
[2] W_DISABLE_MODULE
[2] AP_READY_MODULE
[2]
RESET_N
[2,10]
PWRKEY
[6]
ANT_DIV
[6]
ANT_MAIN
[6]
ANT_GNSS
[2,10] USB_VBUS
[2] USB_DM
[2] USB_DP
[4] RXD_MODULE
[4] TXD_MODULE
[4]
DTR_MODULE
[4] RTS_MODULE
[4] CTS_MODULE
[4]
DCD_MODULE
[4]
RI_MODULE
[10]
STATUS
[1,3,10]
VBAT
[1,3,10]
VBAT
[4] USIM_PRESENCE
[5]
CODEC_PCM_IN
[5]
CODEC_PCM_OUT
[5]
CODEC_PCM_SYNC
[5]
CODEC_PCM_CLK
[5]
I2C_SDA
[10]USB_DM_TEST
[10]USB_DP_TEST
ADC0_INPUT
ADC1_INPUT
[5]
I2C_SCL
[9]
BT_EN
[9]
COEX_UART_TX
[9]
COEX_UART_RX
[9]
WLAN_EN
[9]
WAKE_ON_WIRELESS
[9]
SDIO_CMD
[9]
SDIO_CLK
[9]
SDIO_D0
[9]
SDIO_D1
[9]
SDIO_D2
[9]
SDIO_D3
[7]
SGMII_RX_M
[7]
SGMII_RX_P
[7]
SGMII_TX_P
[7]
SGMII_TX_M
[7]
SGMII_MDIO_CLK
[7]
SGMII_MDIO_DAT
[7]
EPHY_INT_N
[7]
EPHY_RST_N
[9]
PCM_OUT_BT
[9]
PCM_IN_BT
[9]
PCM_SYNC_BT
[9]
P
CM_CLK_BT
[9] RXD_BT
[9] TXD_BT
[9] RTS_BT
[9] CTS_BT
[10]
USB_BOOT
[7]
USIM2_VDD
[2] WAKEUP_IN_MODULE
[3]
PM_ENABLE
[9]
WLAN_SLP_CLK
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