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GSM/GPRS Modules
N58
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N58 Hardware Us
er Guide
Chapter
4
Module
Pins
Copyright © Neoway T
echnolog
y Co., Ltd.
All rights reserved.
20
GND
1, 14, 17,
20, 26, 30, 31, 44,
49, 74, 75,
77, 91, 93, 95, 97-
102,
104,
106,
112, 114,
1
15,
121-123,
128,
129, 13
7,
142,
143, 146, 14
7, 155-192
All
GND
pins
must
be
grounded.
Control interf
ace
RESET_N
32
DI
Module
reset
input
-
Triggered
by
a
low
level
to
co
ntrol
the
module
reset.
This
pin
is
connected
to
VBAT
by
using
a
20
kΩ
pull
-
up
resistor
in
the
main
chip of the
module.
PWRKEY_
N
33
DI
Module
power-
on/power-of
f
control
-
Triggered
by
a
low
level
to
co
ntrol
the
module
power-
on/power-o
ff.
This
pin
is
connected
to
VBAT
by
using
a
20
kΩ
pull
-
up
resistor
in
the
main
chip of the
module.
SLEEP
79
DI
Sleep
mode
control
P3
See
section
5.
2.3
"SLEEP
."
UA
RT1 interface
UART1_TX
D
69
DO
Data
sending
P3
Software
(standard)
version:
These
pins
are
used
for
data
transmissi
on.
Software
(open)
version:
These
pins
are
used
for
data
transmissi
on.
Note:
UART
1_CTS
(pin
71)
can
be
use
d
to
capture
the
CP-side
logs of the
module.
UART1_RX
D
70
DI
Data
receiving
P3
UART1_C
TS
71
DI
User
allowing
the
module
to
send data
P3
UART1_R
TS
72
DO
Module
requesting
the
user
to
send data
P3
UA
RT2 interface
UART2_TX
D
46
DO
Data
sending
P3
Software
(standard)
version:
These
pins
are
used
for
AT
command
communic
ations.
UART2_RX
D
47
DI
Data
receiving
P3
UART2_C
TS
51
DI
User
P3
19
21
Table of Contents
Main Page
Table of Contents
3
About this Document
8
Scope
8
Audience
8
Change History
8
Conventions
10
Related Documents
11
Safety Recommendations
12
About N58
13
Product Overview
13
Table 2-1 Variants and Frequency Bands Supported
13
Block Diagram
14
Figure 2-1 Block Diagram
14
Basic Features
15
Reference Standards
17
Module Pins
18
Pin Layout
18
Figure 4-1 Pin Layout of the N58 Module (Top View)
18
Pin Description
19
Table 4-1 IO Type Description and DC Characteristics
19
Table 4-2 Pin Description
19
Application Interfaces
28
Power Interface
28
Vbat
28
Figure 5-1 Voltage Drop of the Power Supply
29
Figure 5-2 Recommended Design 1
29
Figure 5-3 Recommended Design 2
30
Figure 5-4 Recommended Design 3
31
Figure 5-5 Recommended Design 4
31
Vdd_1P8
33
Control Interface
33
Pwrkey_N
33
Figure 5-6 Reference Design of Module Startup Controlled by Button
34
Figure 5-7 Reference Design of Module Startup Controlled by MCU
34
Figure 5-8 Reference Design of Automatic Startup Once Powered on
35
Figure 5-9 Startup Process
36
Figure 5-10 Hard Shutdown Process
36
Reset_N
37
Figure 5-11 Module Reset Controlled by Button
37
Figure 5-12 Reference Reset Circuit in Which a Triode Is Used for Isolation
37
Sleep
38
Figure 5-13 Reset Process of the N58 Module
38
Figure 5-14 Process of Entering the Sleep Mode
39
Figure 5-15 Process of Call Service Processing in Sleep Mode
39
Figure 5-16 Process of Exiting from the Sleep Mode
40
Peripheral Interface
41
Usb
41
Figure 5-17 Reference Design of the Module Sleep and Wake-Up Control Circuit
41
Figure 5-18 Reference Design of the USB Connection Circuit
42
Uart
43
Figure 5-19 Reference Design of UART Connections
44
Figure 5-20 Recommended Level Shifting Circuit 1
44
Figure 5-21 Recommended Level Shifting Circuit 2
45
Usim
46
Figure 5-22 Recommended Level Shifting Circuit 3
46
Figure 5-23 Reference Design of USIM Card (with the Hot Plug Function) Interfaces
47
Figure 5-24 Reference Design of USIM Card (Without the Hot Plug Function) Interfaces
48
Sdio
49
Figure 5-25 SDIO Reference Design
49
Spi
50
I2C
51
Figure 5-26 SPI Reference Design
51
Figure 5-27 I2C Reference Design
51
Audio Interfaces
52
Analog Audio Input Interfaces
52
Figure 5-28 Reference Design of Differential MIC Input
52
Analog Audio Output Interfaces
53
Figure 5-29 Reference Design of the Built-In Power Amplifier
53
Figure 5-30 Reference Design of the External Power Amplifier
54
Video Interfaces
55
Lcd
55
Table 5-1 Description of LCD Function Pins
55
Camera
56
Other Interfaces
56
Adc
56
Net_Light
56
Table 5-2 Description of Camera Function Pins
56
Ring
57
Figure 5-31 Reference Design of Driving an LED Indicator by Controlling a Triode
57
Usb_Boot
58
Figure 5-32 RING Prompt for an Incoming Voice Call
58
Figure 5-33 RING Prompt for an SMS Message
58
VBACKUP and VRTC
59
Figure 5-34 Reference Design of Forcible Download
59
Gpio
60
Gnss_Lna_En
60
Figure 5-35 Reference Design of VBACKUP and VRTC Power Supply
60
Keypad
61
Figure 5-36 Keypad Reference Design
61
1Pps
62
Vcc_Gnss_Bias
62
Figure 5-37 1PPS Output Waveform
62
RF Interfaces
63
ANT_MAIN Antenna Interface
63
Figure 5-38 Reference Design of GNSS Active Antenna Power Supply and Detection Circuit
63
Figure 5-39 L-Type Matching Network
64
Figure 5-40 T-Type Matching Network
64
Figure 5-41 Π-Type Matching Network
64
ANT_GNSS Interface
65
Figure 5-42 Recommended RF PCB Design
65
Figure 5-43 GNSS Structure Inside the Module
66
Figure 5-44 Reference Design of an Active GNSS Antenna
67
ANT_BT Interface
68
Antenna Assembly
68
Figure 5-45 Reference Design of a Passive GNSS Antenna
68
Figure 5-46 Package Specifications of Murata's GSC RF Connector
69
Figure 5-47 Module RF Connection Method
69
Figure 5-48 Antenna Layout Example
70
Figure 5-49 Layout Around the Antenna
70
Electrical Characteristics and Reliability
71
Electrical Characteristics
71
Table 6-1 Electrical Characteristics of the N58 Module
71
Table 6-2 Current Consumption of the N58 Module (Typical)
71
Temperature Characteristics
72
ESD Protection Characteristics
72
Table 6-3 ESD Protection Characteristics
72
RF Characteristics
73
Operating Bands
73
Table 7-1 Operating Bands of the N58 Module
73
TX Power and RX Sensitivity
74
Table 7-2 RF TX Power of the N58 Module
74
Table 7-3 RF RX Sensitivity of the N58 Module
74
GNSS Parameters
75
Table 7-4 GNSS Parameters
75
WLAN/BT Characteristics
76
Table 7-5 WLAN/BT TX Power and RX Sensitivity
76
Mechanical Characteristics
77
Dimensions
77
Figure 8-1 N58 Top and Side Dimensions (Unit: MM)
77
Label
78
Packaging
78
Figure 8-2 N58 Label Examples
78
Reel and Tape
79
Moisture
80
Assembly
81
Module PCB Package
81
Figure 9-1 Bottom View of the N58 Module PCB Package (Unit: MM)
81
Application PCB Package
82
Stencil
82
Figure 9-2 Top View of the Recommended N58 Application PCB Package (Unit: MM)
82
Solder Paste
83
SMT Furnace Temperature Curve
83
Figure 9-3 SMT Furnace Temperature Curve
83
Abbreviations
85
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