SARA-G3 and SARA-U2 series - System Integration Manual
UBX-13000995 - R08
Objective Specification
Design-in
Page 149 of 188
2.15
Schematic for SARA-G3 and SARA-U2 series module integration
2.15.1
Schematic for SARA-G300 / SARA-G310 modules integration
Figure 84 is an example of a schematic diagram where a SARA-G300 / SARA-G310 module is integrated into an
application board, using all the available interfaces and functions of the module.
TXD
RXD
RTS
CTS
DTR
DSR
RI
DCD
GND
12
TXD
9
DTR
13
RXD
10
RTS
11
CTS
6
DSR
7
RI
8
DCD
GND
3V8
GND
330µF
10nF
100nF
56pF
SARA-G300/SARA-G310
52
VCC
53
VCC
51
VCC
+
100µF
2
V_BCKP
GND
GND
GND
RTC
back-up
1.8V DTE
1.8V DTE
16
RSVD
18
RESET_N
Application
Processor
Open
Drain
Output
15
PWR_ON
100k
Ω
Open
Drain
Output
TXD
RXD
29
TXD_AUX
28
RXD_AUX
0
Ω
0
Ω
TP
TP
RSVD
RSVD
32K_OUT
RSVD
26
27
24
25
RSVD
23
RSVD
RSVD
RSVD
RSVD
37
36
35
34
44
RSVD
45
RSVD
49
RSVD
48
RSVD
46
RSVD
47
RSVD
15pF
33
RSVD
17
RSVD
19
RSVD
47pF
SIM Card Holder
CCVCC (C1)
CCVPP (C6)
CCIO (C7)
CCCLK (C3)
CCRST (C2)
GND (C5)
47pF 47pF
100nF
41
VSIM
39
SIM_IO
38
SIM_CLK
40
SIM_RST
47pF
4
V_INT
42
SIM_DET
ESD ESD ESD ESD
56
ANT
62
RSVD
Connector
External
Antenna
V_BCKP
TP
TP
TP
EXT32K
31
Figure 84: Example of schematic diagram to integrate SARA-G300/G310 modules in an application board, using all the interfaces
