Telit Wireless Solutions NE310L2 Guide

NE310L2
HW Design Guide
1VV0301711 Rev. 4 – 2022-06-24
Telit Technical Documentation

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APPLICABILITY TABLE
PRODUCTS
NE310L2-W1
NE310L2-WW

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CONTENTS
APPLICABILITY TABLE 2
CONTENTS 3
INTRODUCTION 7
Scope 7
Audience 7
Contact Information, Support 7
Symbol Conventions 8
Related documents 8
GENERAL PRODUCT DESCRIPTION 9
Overview 9
Product Variants and Frequency Bands 9
Target Market 9
Main Features 9
TX Output Power 10
NE310L2-W1 10
NE310L2-WW 10
RX Sensitivity 10
NE310L2-W1 10
NE310L2-WW 11
Mechanical Specifications 12
Dimensions 12
Weight 12
Temperature Range 13
PINS ALLOCATION 14
Pin-out 14
LGA Pads Layout 18
POWER SUPPLY 20
Power Supply Requirements 20
Power Consumption 21

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NE310L2-W1Idle Mode 21
NE310L2-WW Idle Mode 21
NE310L2-W1 Connected Mode 22
NE310L2-WW Connected Mode 23
General Design Rules 23
Electrical Design Guidelines 24
4.3.1.1. +5V Source Power Supply Design Guidelines 24
4.3.1.2. +12V Source Power Supply Design Guidelines 25
4.3.1.3. Battery Source Power Supply Design Guidelines 26
Thermal Design Guidelines 26
Power Supply PCB Layout Guidelines 26
RTC Supply 28
PWRMON Power-on Monitor 28
DIGITAL SECTION 30
Logic Levels 30
Power On 30
Power Off 32
Unconditional Shutdown 33
Wake up From Deep Sleep Mode 34
Communication Ports 34
SPI 34
Serial Ports 34
5.6.2.1. Asynchronous Serial Port (USIF0) 35
5.6.2.2. Auxiliary Serial Port 36
General Purpose I/O 36
Using a GPIO as INPUT 37
Using a GPIO as OUTPUT 37
ADC Converter 37
Using ADC Converter 38
DAC Converter 38
Enabling DAC 38
RF SECTION 39

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Antenna Requirements 39
PCB Design Guidelines 39
MECHANICAL DESIGN 41
Drawing 41
NE310L2-W1 41
NE310L2-WW 42
APPLICATION PCB DESIGN 43
Footprint 43
NE310L2-W1 43
NE310L2-WW 45
Recommendations for NE310L2-W1 47
Recommendations for NE310L2-WW 48
PCB Pad Design 49
Stencil 50
Solder Paste 50
Solder Reflow 50
PACKAGING 52
Tray 52
NE310L2-W1 52
NE310L2-WW 54
Reel 56
NE310L2-W1 56
NE310L2-WW 57
9.3 Moisture Sensitivity 58
CONFORMITY ASSESSMENT ISSUES 59
Approvals Summary 59
Europe Approvals 59
RED Declaration of Conformity 59
UKCA Declaration of Conformity 59
RED / UKCA Antennas 59
FCC and ISED Approval / FCC et ISDE Approbation 60

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FCC Certificates 60
ISED Certificate / ISDE Certificates 60
Applicable FCC and ISED Rules / Liste des Règles FCC et
ISDE Applicables 61
FCC and ISED Regulatory Notices / Avis Réglementaires de
FCC et ISDE 61
FCC/ISED Antennas / FCC/ISDE Antennes 62
FCC Label and Compliance Information 64
ISED Label and Compliance Information/ Étiquette et
Informations de Conformité ISDE 64
Information on Test Modes and Additional Testing
Requirements / Informations sur les Modes de Test et les
Exigences de Test Supplémentaires 65
FCC Additional Testing, Part 15 Subpart B Disclaimer 66
PRODUCT AND SAFETY INFORMATION 67
Copyrights and Other Notices 67
Copyrights 67
Computer Software Copyrights 67
Usage and Disclosure Restrictions 68
License Agreements 68
Copyrighted Materials 68
High Risk Materials 68
Trademarks 69
3rd Party Rights 69
Waiwer of Liability 69
Safety Recommendations 70
GLOSSARY 71
DOCUMENT HISTORY 73

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INTRODUCTION
Scope
This document introduces the NE310L2 module and presents possible and recommended
hardware solutions to develop a product based on this module and all variants listed in
the applicability table.
This document cannot include every hardware solution or every product that can be
designed, so the information provided should be used as a guide and starting point.
Audience
This document is intended for system integrators that are using the NE310L2 modules in
their products.
Contact Information, Support
For technical support services and general questions please e-mail:

TS-EM[email protected]

TS-AM[email protected]

[email protected]

[e-mail]

[email protected]
Alternatively, use:
https://www.telit.com/contact-us/
Product information and technical documents are accessible 24/7 on our web site:
https://www.telit.com

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Symbol Conventions
Danger: This information MUST be followed or catastrophic
equipment failure or personal injury may occur.
Warning: Alerts the user on important steps about the module
integration.
Note/Tip: Provides advice and suggestions that may be useful when
integrating the module.
Electro-static Discharge: Notifies the user to take proper
grounding precautions before handling the product.
Table 1: Symbol Conventions
All dates are in ISO 8601 format, that is YYYY-MM-DD.
Related documents

80668ST11067A NE310L2 AT Commands Reference Guide

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GENERAL PRODUCT DESCRIPTION
Overview
The NE310L2 module is a NBIoT communication product that allows integrators to plan
for availability even for longer lifecycle applications, highly recommended for new
designs specified for worldwide coverage.
The NE310L2 operates with 1.8 V GPIOs, minimizing power consumption and making it
even more ideal for application with battery-powered and wearable devices.
Product Variants and Frequency Bands
Product 2G Band (MHz) LTE CATM1 NBIoT CS Voice
VoLTE Region
NE310L2-W1 - -
B1, B2, B3, B4, B5, B8,
B12, B13, B18, B19, B20,
B25, B26, B28, B66, B85
N Worldwide
NE310L2-WW 850, 900, 1800, 1900 -
B1, B2, B3, B4, B5, B8,
B12, B13, B18, B19, B20,
B25, B26, B28, B66, B85
N Worldwide
Table 2: Product Variants and their Frequency Bands
Refer to “RF Section” for details information about frequencies.
Note: Cellular technologies and frequency bands may vary based on
firmware version and firmware configuration used.
Target Market
NE310L2 can be used for Global IoT applications such as smart metering, healthcare
monitoring, home automation, industrial sensors, smart agriculture, asset tracking,
point of sale, portable devices and many more that benefit from low-power and low-data
rate capabilities.
Main Features
Function Features
Modem

NBIoT technology

SMS support (text and PDU)

Real Time Clock

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Function Features
Interfaces

USIF0 Main UART (AT command* and Log)

AUX UART (AT Command*, FW Uograde, LOg)

SPI**

6 GPIOs

Antenna port
Table 3: Functional Features
* Functionality depending on ports configuration
** Functionality will be available on future Maintenance releases
TX Output Power
NE310L2-W1
Band Mode Class RF power (dBm) Nominal*
B1, B2, B3, B4, B5, B8, B12, B13, B18,
B19, B20, B25, B26, B28, B66, B85 (LTE) CAT-NB1 3 23
Table 4: Transmission Output Power
* Max output power tolerance range according to 3GPP TS 36.521-1 or better
NE310L2-WW
Band Mode Class RF power (dBm)Nominal*
850/900MHz GPRS 4 32.5
1800/1900MHz GPRS 1 29.5
B1, B2, B3, B4,
B5, B8, B12,
B13, B18, B19,
B20, B25, B26,
B28, B66, B85
(LTE) CAT-NB1 3 23
Table 5: Transmission Output Power
* Max output power tolerance range according to 3GPP TS 36.521-1 and 3GPP TS 51.010-1 or better
RX Sensitivity
NE310L2-W1
Band REFsens (dBm) Typical REFsens (dBm)* 3GPP Limit
CAT NB2 / Band1 -114.2 -108.2

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Band REFsens (dBm) Typical REFsens (dBm)* 3GPP Limit
CAT NB2 / Band2 -114.2 -108.2
CAT NB2 / Band3 -114.7 -108.2
CAT NB2 / Band4 -114.3 -108.2
CAT NB2 / Band5 -114.6 -108.2
CAT NB2 / Band8 -114.5 -108.2
CAT NB2 / Band12 -114.4 -108.2
CAT NB2 / Band13 -114.3 -108.2
CAT NB2 / Band18 -114.5 -108.2
CAT NB2 / Band19 -114.5 -108.2
CAT NB2 / Band20 -114.0 -108.2
CAT NB2 / Band25 -114.1 -108.2
CAT NB2 / Band26 -114.2 -108.2
CAT NB2 / Band28 -114.2 -108.2
CAT NB2 / Band66 -114.2 -108.2
CAT NB2 / Band85 -114.4 -108.2
Table 6: RX Sensitivity NE310L2-W1 * 3GPP TS 36.521-1 Release 15 Minimum performance requirement
NE310L2-WW
Band REFsens (dBm) Typical REFsens (dBm)* 3GPP Limit
CAT NB2 / Band1 -113.4 -108.2
CAT NB2 / Band2 -113.4 -108.2
CAT NB2 / Band3 -113.1 -108.2
CAT NB2 / Band4 -113.5 -108.2
CAT NB2 / Band5 -113.5 -108.2
CAT NB2 / Band8 -114.1 -108.2
CAT NB2 / Band12 -113.4 -108.2
CAT NB2 / Band13 -113.5 -108.2
CAT NB2 / Band18 -113.7 -108.2
CAT NB2 / Band19 -113.6 -108.2

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Band REFsens (dBm) Typical REFsens (dBm)* 3GPP Limit
CAT NB2 / Band20 -113.0 -108.2
CAT NB2 / Band25 -113.6 -108.2
CAT NB2 / Band26 -113.2 -108.2
CAT NB2 / Band28 -113.2 -108.2
CAT NB2 / Band66 -113.3 -108.2
CAT NB2 / Band85 -113.3 -108.2
GPRS / GSM850
[1] -109.3 -102
GPRS / GSM900[1] -109.5 -102
GPRS / DCS1800[1] -110.9 -102
GPRS / PCS1900[1] -110.3 -102
Table 7: RX Sensitivity NE310L2-WW
* 3GPP TS 36.521-1 Release 15 and 51.010-1 Minimum performance requirement
[1] GPRS: GMSK CS2; 10% BLER
Mechanical Specifications
Dimensions
The overall dimensions of NE310L2-W1 are:

Length: 14.3 mm

Width: 13.1 mm

Thickness: 2.6 mm
The overall dimensions of NE310L2-WW:

Length: 18.0 mm

Width: 15.0 mm

Thickness: 2.6 mm
Weight
The nominal weight of the NE310L2-W1 is 1gr.
The nominal weight of the NE310L2-WW is 1.5gr.

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Temperature Range
Temperature range Note
Normal Operating Temperature Range –30°C to +70°C The module is fully functional and compliant
according to regulatory standards.
Extended Operating Temperature Range -40°C to +85°C The module is fully functional (*)
Storage Temperature Range –40°C to +105°C The module is not powered and not connected
to power supply
Table 8: Temperature Range
Note: (*) Functional: if applicable, the module is able to make and
receive data calls, send and receive SMS and data traffic.

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PINS ALLOCATION
Pin-out
Pin Signal I/O Function Type Comment
Asynchronous Serial Port (USIF0) – Prog. / Data + HW Flow Control
Y16 C103/TXD0 I Serial data input (TXD) from
DTE CMOS 1.8V Internal PU
AA15 C104/RXD0 O Serial data output (RXD) to
DTE CMOS 1.8V
Y18 C105/RTS0 I Input for Request to send
signal (RTS) from DTE
CMOS 1.8V Internal PU
AA17 C106/CTS0 O Output for Clear to send signal
(CTS) to DTE CMOS 1.8V
Auxiliary Serial Port
Y10 TX_AUX O Auxiliary UART (TX Data to
DTE) CMOS 1.8V
AA9 RX_AUX I Auxiliary UART (RX Data to
DTE) CMOS 1.8V Internal PU
SIM card interface
L1 SIM_CLK O External SIM signal – Clock CMOS 1.8V
M2 SIM_RST O External SIM signal – Reset CMOS 1.8V
N1 SIM_DAT I/O External SIM signal – Data I/O CMOS 1.8V
P2 SIM_VCC - Power supply for the SIM 1.8V Only 1.8V simcard
are supported
SPI
AA5 SPI_MOSI I/O SPI MOSI CMOS 1.8V Internal PD
Y8 SPI_MISO I/O SPI MISO CMOS 1.8V Internal PD
AA7 SPI_CLK I/O SPI Clock CMOS 1.8V Internal PD
Y6 SPI_CS I/O SPI Chip Select CMOS 1.8V Internal PD
DIGITAL IO
V11 IO1 I/O Configurable GPIO01/ CMOS 1.8V Internal PD
V13 IO2 I/O Configurable GPIO02/ CMOS 1.8V Internal PD
D7 IO3 I/O Configurable GPIO03 CMOS 1.8V Internal PD
D9 IO4 I/O Configurable GPIO04 CMOS 1.8V Internal PD
D11 IO5 I/O Configurable GPIO05 CMOS 1.8V Internal PD

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Pin Signal I/O Function Type Comment
D13 IO6 I/O Configurable GPIO06 CMOS 1.8V Internal PD
ADC and DAC
B18 ADC I Analog To Digital converter
Input A/D
R16 DAC O Digital To Analog converter
Output D/A PWM signal
RF Section
A5 CELL_MAIN
ANTENNA I/O
Main Antenna (50 ohm) RF
Miscellaneous Functions
B2 S_LED O Status LED CMOS 1.8V
N16 ON_OFF*/WAKE* I
Input Command for Power
ON/OFF and to wake from
deep sleep mode
Internal Power Supply
(MAX 1.6V low power
mode)
Active Low,
Internal PU (620K)
R19 HW_SHUTDOWN* I HW Unconditional Shutdown
Internal Power Supply
(MAX 1.6V low power
mode)
Active Low,
Internal PU (620K)
R1 PWRMON O Power ON Monitor CMOS 1.8V
Power Supply
W1 VBATT_PA - Main power supply (Radio PA) Power
AA3 VBATT - Main power supply
(Baseband) Power
A3 GND - RF Ground Power
A7 GND - RF Ground Power
A9 GND - RF Ground Power
A13 GND - RF Ground Power
A17 GND - RF Ground Power
B4 GND - RF Ground Power
B6 GND - RF Ground Power
B10 GND - RF Ground Power
B12 GND - RF Ground Power
B14 GND - RF Ground Power
B16 GND - RF Ground Power
C19 GND - RF Ground Power

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Pin Signal I/O Function Type Comment
D18 GND - RF Ground Power
F8 GND - Thermal Ground Power
F12 GND - Thermal Ground Power
F18 GND - Thermal Ground Power
G19 GND - Thermal Ground Power
H6 GND - Thermal Ground Power
H14 GND - Thermal Ground Power
J19 GND - Thermal Ground Power
K18 GND - Thermal Ground Power
M18 GND - Thermal Ground Power
N19 GND - Thermal Ground Power
P6 GND - Thermal Ground Power
P14 GND - Thermal Ground Power
T8 GND - Thermal Ground Power
T12 GND - Thermal Ground Power
U1 GND - Power Ground Power
V2 GND - Power Ground Power
W19 GND - Power Ground Power
Y2 GND - Power Ground Power
Y4 GND - Power Ground Power
RESERVED
G1 RESERVED - RESERVED
H2 RESERVED - RESERVED
J1 RESERVED - RESERVED
K2 RESERVED - RESERVED
J4 RESERVED - RESERVED
G4 RESERVED - RESERVED
L19 RESERVED - RESERVED
A11 RESERVED - RESERVED
R4 RESERVED - RESERVED

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Pin Signal I/O Function Type Comment
L4 RESERVED - RESERVED
V7 RESERVED - RESERVED
V9 RESERVED - RESERVED
L16 RESERVED - RESERVED
P18 RESERVED - RESERVED
J16 RESERVED - RESERVED
B8 RESERVED - RESERVED
A15 RESERVED - RESERVED
U19 RESERVED - RESERVED
V18 RESERVED - RESERVED
T18 RESERVED - RESERVED
Y12 RESERVED - RESERVED
AA11 RESERVED - RESERVED
AA13 RESERVED - RESERVED
Y14 RESERVED - RESERVED
E19 RESERVED - RESERVED
H18 RESERVED - RESERVED
G16 RESERVED - RESERVED
T2 RESERVED - RESERVED
C1 RESERVED - RESERVED
D2 RESERVED - RESERVED
E1 RESERVED - RESERVED
F2 RESERVED - RESERVED
N4 RESERVED - RESERVED
Table 9: Pin-out Information
Warning: Reserved pins must not be connected.

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Warning: C104/RXD0 cannot have any PU or HIGH state during
BOOTING UP phase.
LGA Pads Layout
TOP VIEW
Figure 1: LGA Pads Layout

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SUPPLY AND CONTROL
SIM CARD
ANALOG FUNCTIONALITY
GROUND
DIGITAL FUNCTIONALITY
DIGITAL COMMUNICATION
RF SIGNALS
RESERVED/NOT ASSIGNED/ RESERVED FOR FUTURE USE
GNSS

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POWER SUPPLY
Power supply circuitry and the board layout are a very important part in the full product
design and strongly reflect on the overall performance of the product, so the
requirements and guidelines that will follow should be read carefully for a proper design.
Power Supply Requirements
The external power supply must be connected to VBATT & VBATT_PA signals and must
fulfil the following requirements:
Power Supply Value
Nominal Supply Voltage 3.8V
Operating Voltage Range 3.4 V - 4.2 V
Extended Voltange Range NE310L2-W1: 3.0 V - 4.5 V NE310L2-WW: 3.2 V - 4.5 V
VBATTmin 2.2V
Table 10: Power Supply Requirements
Warning: The supply voltage of the modem must never exceed the
Extended Operating Voltage Range.
Improper implementation of the power supply guidelines described
in this document can cause module failure.
Note: For PTCRB approval on the final products the power supply is
required to be within the “Normal Operating Voltage Range”.
Note: Note: The power supply section of the application must be
carefully designed to avoid an excessive voltage drop during
transmission peak current absorptions. If the voltage drops beyond
the limits of the Extended Operating Voltage range, an unintentional
module power off can occur.
Note: Note: When turning on the modem, the voltage must be at least
VBATTmin.