Datasheet

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3G click schematic v103
MikroElektronika assumes no responsibility or liability for any errors or inaccuracies that may appear in the present document.
Specification and information contained in the present schematic are subject to change at any time without notice. Copyright©2016 MikroElektronika. All rights reserved.
+3V3
RTS
C
3
2 100nF
FP2
FERRITE BEAD
CN1
ANTENNA
3
1
2
4
CN3
ST-328B-3
RXD
TXD
E2 470uF/10V
CTS
1
2
3
4
5
6
7
8 9
10
11
12
13
14
15
16
A1
VCCA
A2
A3
A4
A5
A6
OE
B5
B6
B1
VCCB
B2
B3
B4
GND
TXB0106
U2
TXB0106
Vgsm+5V
R15
470
LD3A
PWR
J1A
+5V
+3V3VCC
C31 100nF
VDD_EXT
Vgsm
C
20
33
pF
C
1
9 33pF
C18 33pF
SIM_VCC
SIM_RST
SIM_CLK
SIM_IO
VCC
LD1B
R1
2K2
LD2C
R2
2K2
NET_LED
!RXD
!TXD
!RTS RTS
RXD
TXD
CTS
E1 470uF/10V
EAR+
MIC+
C5
100nF
AN
RST
CS
SCK
MOSI
MISO
+3.3V
GND
PWM
INT
RX
TX
SCL
SDA
+5V
GND
SIM_GND
C14 10pF
C15 33pF
PWRKEY
!PWRKEY
PWRKEY
!RI RI
RI
R6
2K2
MIC-
!STAT
STAT
STAT!STAT
R3
1K
!CTS
+5V
R16
100K
R17
10K
Vgsm
C26
2.2uF
6
2 3
4
5
SHDN GND VOUT ADJ
1
VIN
GND
U5
MCP1826
R18
1K
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19 20 21 22
23
24 2
5
26
27 2
8
29
30
31
32
33
34
35
36
NC
NC
GND
PCM_CLK
PCM_SYNC
PCM_DIN
AP_READY NC STATUS
RESET_N
NC
PCM_DOUT
USB_VBUS
USB_DP
USB_DM
NC
NC
NC
NC
PWRKEY
PWRDWN_N
N
ETLIGH
T
NC NC NC CLK_OUT NC
RXD
VDD_EXT
NC DTR GND
VBAT_BB
VBAT_BB
CTS
TXD
37
38
39
40
DCD
RTS
I2C_SCL
RI
QUECTEL UG95
41
I2C_SDA
42
USIM_PRESENCE
43
USIM_VDD
44
USIM_RST
45
USIM_DATA
46
USIM_CLK
47
USIM_GND
48
GND
49
NC
50 51
52
53
54
55 5
6
57
58 59 60 61 62
VRTC
N
C
VBAT_RF
GND
VBAT_RF
GND G
ND
NC
GND
RF_A
NT
GND GND GND
U1
QUECTEL UG95
SIM_GND
SIM_CLK
SIM_VCC
SIM_RST
SIM_IO
!RI
!RTS
!CTS
!RXD
!TXD
!PWRKEY
VDD_EXT
C8
2.2uF
!STAT NET_LED
Vgsm
CLK_
O
UT
PCM_CLK
PCM_SYNC
PCM_DOUT
PCM_DIN
USB-D_P
USB-D_N
FP1
D1
PMEG3010ER
R1
3
2K2
C23
100nF
+5V
R11 1K
VBUS
VBUS
USB-D_N
USB-D_P
I2C_SDA
I2C_SCL
R1
R2
Q1
PDTC114EU
R1
R2
Q3
PDTC114EU
R1
R2
Q2
PDTC114EU
2
3
4
5
6
7
11 12
13
14
24
23
22
21
18
17
16
15
8
1
19
9
10
20
MICBIAS
PREG
REG
REF
AGND
AVDD
OUTP OUTN SDA SCL DVDDIO
DGND
DVDD
MCLK
SDO
SDI
LRCLK
BCLK
MICRP
MICLP
MCGND
MICLN
MICRN
IRQn
MAX9860
GND
U4
C30 2.2uF C29 1
uF
C28 1
u
F
C27 2.2uF
AGND
PCM_CLK
PCM_SYNC
PCM_DOUT
PCM_DIN
I2C
_
SDA
I2C_SCL
C35 1uF
C36 1uF
CLK_OUTR14 22
C25 47pF
C34 1uF
R4 4K7 R5 4K7
VDD_EXT
R10
10K
AGND
C4
1uF
R12 22
C24 22pF
C22 10uF
C21 100nF
AGND
AGND
AGND
EAR+
MIC+ MIC-
C17
4.7uF
C16
1uF
R9
2K2
AGND
MIC_BIAS
C12 10pF
C13 33pF
C6 10uF
C7 10uF
C1 10pF C2 33pF C3 100nF
Vgsm
C9 10pF
C10 33pF C11 100nF
Vgsm
C33 10uF
C37 10uF
1
2
3
4
5
ID
D+
D-
VBUS
GND
CN4
USB MINIAB
1
5
2
3
7
VCC
GND
RST
CLK
IO
U3
uSIM_CARD_6pin
MIC_BIAS
C38
2.2uF
1
2
3
IN
GND
OUT
5
4
EN ADJ
U6
SPX3819
R7
10K
R8
22K
C39
10uF
VCC-1V8
+5V
VCC-1V8 VCC-1V8 VCC-1V8
Vgsm Vgsm
+5V
FP3
FERRITE BEAD
AGND