Telit Wireless Solutions NE310L2 Guide

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

NE310L2 Hardware Design Guide
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Not Subject to NDA
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