Ublox SARA-G340 ATEX User Manual

SARA-G3 and SARA-U2 series - System Integration Manual
UBX-13000995 - R26 Design-in
Page 172 of 217
2.15.2 Schematic for SARA-G340 / SARA-G350 modules integration
Figure 92 is an example of a schematic diagram where a SARA-G340 / SARA-G350 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
10nF100nF 56pF
SARA-G340/SARA-G350
52 VCC
53 VCC
51 VCC
+
100µF
2 V_BCKP
GND GND
GND
RTC
back-up
1.8V DTE
1.8V DTE
16 GPIO1
3V8
Network
Indicator
18 RESET_N
Application
Processor
Open
Drain
Output
15 PWR_ON
100kΩ
Open
Drain
Output
TXD
RXD
29 TXD_AUX
28 RXD_AUX
0Ω
0Ω
TP
TP
u-blox 1.8 V
GNSS Receiver
4.7k
OUTIN
GND
LDO Regulator
SHDN
SDA
SCL
4.7k
3V8 1V8_GPS
SDA2
SCL2
GPIO3
GPIO4
TxD1
EXTINT0
26
27
24
25
47k
VCC
GPIO2
23
1.8V Digital
Audio Device
I2S_RXD
I2S_CLK
I2S Data Output
I2S Clock
I2S_TXD
I2S_WA
I2S Data Input
I2S Word Alligment
37
36
35
34
49MIC_P
2.2k
2.2k 2.2k
48MIC_N
2.2k
10uF
46MIC_BIAS
47MIC_GND
100nF
100nF
44SPK_P
45SPK_N
82nH
82nH
27pF27pF
Connector
Microphone
ESDESD
27pF 27pF
Speaker
Connector
ESD ESD
15pF
33 RSVD
31 RSVD
17 RSVD
19 RSVD
47pF
SIM Card Holder
CCVCC (C1)
CCVPP (C6)
CCIO (C7)
CCCLK (C3)
CCRST (C2)
GND (C5)
47pF 47pF 100nF
41VSIM
39SIM_IO
38SIM_CLK
40SIM_RST
47pF
SW1
SW2
4V_INT
42SIM_DET
470k
ESD ESD ESD ESD ESD ESD
56ANT
62ANT_DET
10k 82nH
33pF
Connector
27pF
ESD
External
Antenna
V_BCKP
1k
TP
TP
TP
0 Ω
0 Ω
TP
TP
0 Ω
0 Ω
TP
TP
0 Ω
TP
Figure 92: Example of schematic diagram to integrate SARA-G340/G350 module in an application board, using all the interfaces

Ublox SARA-G340 ATEX Specifications

General

Brand	Ublox
Model	SARA-G340 ATEX
Category	Control Unit
Language	English