Telit Wireless Solutions NE310L2 Hw Design Manual
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Telit Wireless Solutions NE310L2 Hw Design Manual

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

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Summary of Contents for Telit Wireless Solutions NE310L2

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

  • Page 2: Applicability Table

    NE310L2 Hardware Design Guide APPLICABILITY TABLE PRODUCTS NE310L2-W1 NE310L2-WW 1VV0301711 Rev4 Page 2 of 74 2022-06-24 Not Subject to NDA...

  • Page 3: Table Of Contents

    NE310L2 Hardware Design Guide CONTENTS APPLICABILITY TABLE CONTENTS INTRODUCTION Scope Audience Contact Information, Support Symbol Conventions Related documents GENERAL PRODUCT DESCRIPTION Overview Product Variants and Frequency Bands Target Market Main Features TX Output Power NE310L2-W1 NE310L2-WW RX Sensitivity NE310L2-W1 NE310L2-WW...
  • Page 4 NE310L2 Hardware Design Guide NE310L2-W1Idle Mode NE310L2-WW Idle Mode NE310L2-W1 Connected Mode NE310L2-WW Connected Mode General Design Rules Electrical Design Guidelines 4.3.1.1. +5V Source Power Supply Design Guidelines 4.3.1.2. +12V Source Power Supply Design Guidelines 4.3.1.3. Battery Source Power Supply Design Guidelines...
  • Page 5 NE310L2 Hardware Design Guide Antenna Requirements PCB Design Guidelines MECHANICAL DESIGN Drawing NE310L2-W1 NE310L2-WW APPLICATION PCB DESIGN Footprint NE310L2-W1 NE310L2-WW Recommendations for NE310L2-W1 Recommendations for NE310L2-WW PCB Pad Design Stencil Solder Paste Solder Reflow PACKAGING Tray NE310L2-W1 NE310L2-WW Reel NE310L2-W1 NE310L2-WW 9.3 Moisture Sensitivity...
  • Page 6 NE310L2 Hardware Design Guide FCC Certificates ISDE Certificates ISED Certificate / Liste des Règles FCC et Applicable FCC and ISED Rules / ISDE Applicables Avis Réglementaires de FCC and ISED Regulatory Notices / FCC et ISDE FCC/ISDE Antennes FCC/ISED Antennas / FCC Label and Compliance Information Étiquette et...

  • Page 7: Introduction

    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-EMEA@telit.com...

  • Page 8: Symbol Conventions

    Electro-static Discharge: Notifies the user to take proper grounding precautions before handling the product. Table Symbol Conventions All dates are in ISO 8601 format, that is YYYY-MM-DD. Related documents  80668ST11067A NE310L2 AT Commands Reference Guide 1VV0301711 Rev4 Page 8 of 74 2022-06-24 Not Subject to NDA...

  • Page 9: General Product Description

    NE310L2 Hardware Design Guide 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.

  • Page 10: Tx Output Power

    NE310L2 Hardware Design Guide Function Features  USIF0 Main UART (AT command* and Log)  AUX UART (AT Command*, FW Uograde, LOg)  Interfaces SPI**  6 GPIOs  Antenna port Table 3: Functional Features * Functionality depending on ports configuration...

  • Page 11: Ne310L2-Ww

    -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...

  • Page 12: Mechanical Specifications

    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. 1VV0301711 Rev4 Page 12 of 74 2022-06-24...

  • Page 13: Temperature Range

    NE310L2 Hardware Design Guide Temperature Range Temperature range Note The module is fully functional and compliant Normal Operating Temperature Range –30°C to +70°C according to regulatory standards. Extended Operating Temperature Range -40°C to +85°C The module is fully functional (*)

  • Page 14: Pins Allocation

    NE310L2 Hardware Design Guide PINS ALLOCATION Pin-out Signal Function Type Comment Asynchronous Serial Port (USIF0) – Prog. / Data + HW Flow Control Serial data input (TXD) from C103/TXD0 CMOS 1.8V Internal PU Serial data output (RXD) to AA15 C104/RXD0 CMOS 1.8V...
  • Page 15 NE310L2 Hardware Design Guide Signal Function Type Comment Configurable GPIO06 CMOS 1.8V Internal PD ADC and DAC Analog To Digital converter Input Digital To Analog converter PWM signal Output RF Section CELL_MAIN Main Antenna (50 ohm) ANTENNA Miscellaneous Functions S_LED Status LED CMOS 1.8V...
  • Page 16 NE310L2 Hardware Design Guide Signal Function Type Comment RF Ground Power Thermal Ground Power Thermal Ground Power Thermal Ground Power Thermal Ground Power Thermal Ground Power Thermal Ground Power Thermal Ground Power Thermal Ground Power Thermal Ground Power Thermal Ground...
  • Page 17 NE310L2 Hardware Design Guide Signal Function Type Comment RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED AA11 RESERVED RESERVED AA13 RESERVED RESERVED RESERVED RESERVED...

  • Page 18: Lga Pads Layout

    NE310L2 Hardware Design Guide Warning: C104/RXD0 cannot have any PU or HIGH state during BOOTING UP phase. LGA Pads Layout TOP VIEW Figure 1: LGA Pads Layout 1VV0301711 Rev4 Page 18 of 74 2022-06-24 Not Subject to NDA...
  • Page 19 NE310L2 Hardware Design Guide SUPPLY AND CONTROL SIM CARD ANALOG FUNCTIONALITY GROUND DIGITAL FUNCTIONALITY DIGITAL COMMUNICATION RF SIGNALS RESERVED/NOT ASSIGNED/ RESERVED FOR FUTURE USE GNSS 1VV0301711 Rev4 Page 19 of 74 2022-06-24 Not Subject to NDA...

  • Page 20: 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 Power Supply Requirements Warning: The supply voltage of the modem must never exceed the Extended Operating Voltage Range.

  • Page 21: Power Consumption

    NE310L2 Hardware Design Guide Note: The HW User Guide specifications shall be fully acknowledged and implemented correctly in order to use the module in its “Extended Operating Voltage Range”. Power Consumption NE310L2-W1Idle Mode Mode Measure (Typical) Mode Description CATM NBIoT...

  • Page 22: Ne310L2-W1 Connected Mode

    NE310L2 Hardware Design Guide Disabled TX and RX; module is not registered on the AT+CFUN=4 network Paging cycle #256 frames (2.56s DRx cycle) eDRX 81.92s eDRx cycle length (PTW=2.56s, DRX=1.28s) 165 uA EDRX SUSPEND 81.92 PTW 2.56 PAGING: 1.28(uA) 327.68s eDRx cycle length (PTW=2.56s, DRX=1.28s) AT+CFUN=5 655.36s eDRx cycle length (PTW=2.56s, DRX=1.28s)

  • Page 23: Ne310L2-Ww Connected Mode

    NE310L2 Hardware Design Guide 15kHz, 12 SC MCS-5 QPSK, 21 dBm (bands 1,2,3,4,25,66) Table NE310L2-W1 connected mode NE310L2-WW Connected Mode Mode Measure Mode (Typical) Description Average Peak Connected mode (mA) (mA) 3.75KHz, 1 SC MCS-0 BPSK, 23dBm (bands 12, 28, 85)

  • Page 24: Electrical Design Guidelines

    NE310L2 Hardware Design Guide Electrical Design Guidelines The electrical design of the power supply is highly dependent on the power source from which this power is drained. We will distinguish them into three categories:  +5V input (typically PC internal regulator output) ...

  • Page 25: 4.3.1.2. +12V Source Power Supply Design Guidelines

    NE310L2 Hardware Design Guide Figure example of linear regulator with 5V input 4.3.1.2. +12V Source Power Supply Design Guidelines  The desired output for the power supply is 3.8V, so due to the big difference between the input source and the desired output, a linear regulator is not suited and shall not be used.

  • Page 26: 4.3.1.3. Battery Source Power Supply Design Guidelines

    The battery must be rated to supply current peaks up to 2.5 A. Note: DO NOT USE any type of Ni-Cd, Ni-MH, and Pb battery directly connected to NE310L2. Their use can lead to overvoltage on the NE310L2 and damage it. USE ONLY Li-Ion battery types.
  • Page 27  The Bypass low ESR capacitor must be placed close to the Telit NE310L2 power input pads or, if the power supply is a switching type, it can be placed close to the inductor to cut the ripple, provided the PCB trace from the capacitor to the NE310L2 is wide enough to ensure a dropless connection even during the max current peak.

  • Page 28: Rtc Supply

    NE310L2 Hardware Design Guide Figure 4: recommended circuit RTC Supply RTC is functional when NE310L2 is in PSM or OFF state and VBATT pin is supplied. RTC settings are lost when VBATT supply is removed. PWRMON Power-on Monitor PWRMON is always active (output high) when the module is powered ON (module powered ON indication) and cannot be set to LOW level by any AT command.
  • Page 29 NE310L2 Hardware Design Guide Warning:This signal is NOT provided to supply small devices from the module. PWRMON is only a module power-on indicator. 1VV0301711 Rev4 Page 29 of 74 2022-06-24 Not Subject to NDA...

  • Page 30: Digital Section

     OFF state: Vbatt is applied and only RTC is running. The Baseband is switched OFF and the only possible change is the ON state.  ON state: the baseband is fully switched on and NE310L2 is ready to accept AT commands. NE310L2 can be idle or connected.
  • Page 31 NE310L2 Hardware Design Guide “Modem ON Proc” START VBATT>VBATT ON_OFF* = LOW Delay = 6 s ON_OFF* = HI PWRMON=ON ? Delay = 1 s GO TO “Start AT Commands” “Modem ON Proc” 1VV0301711 Rev4 Page 31 of 74 2022-06-24...

  • Page 32: Power Off

    Note: Do not use any pull up resistor on the ON_OFF* line, it is internally pulled up. Using pull up resistor may bring to latch up problems on the NE310L2 power regulator and improper power on/off of the module. The ON_OFF* line must be connected only in open collector or open drain configuration.

  • Page 33: Unconditional Shutdown

    The following flow chart shows the proper procedure for an unconditional shutdown of the Telit NE310L2 module, except in PSM mode. When the procedure is completed the module is reset and it stops all operations. After the procedure execution, the module is unconditionally shut down, without performing any detach operation from the network in which it is registered.

  • Page 34: Wake Up From Deep Sleep Mode

    The host can detect deep sleep mode by polling the PWRMON pin if PSM has been previously configured. Communication Ports The NE310L2 Module is provided by a standard 3-wire SPI master or slave interface with chip select control. The following table is listing the available signals:...

  • Page 35: Asynchronous Serial Port (Usif0)

    On the NE310L2 the ports are CMOS 1.8. 5.6.2.1. Asynchronous Serial Port (USIF0) The serial port 0 on the NE310L2 is a +1.8V UART with 4 RS232 signals. It differs from the PC-RS232 in the signal polarity (RS232 is reversed) and levels.

  • Page 36: 5.6.2.2. Auxiliary Serial Port

    ON/OFF transition (RESET included). 5.6.2.2. Auxiliary Serial Port The auxiliary serial port on the NE310L2 is a CMOS 1.8V with only the RX and TX signals. The signals of the NE310L2 serial port are: Signal...

  • Page 37: Using A Gpio As Input

    ADC Converter The NE310L2 is provided by one AD converter. It is able to read a voltage level in the range of 0÷1.8 volts applied on the ADC pin input, store and convert it into 10 bit word.

  • Page 38: Using Adc Converter

    NE310L2 Hardware Design Guide Using ADC Converter Available in a next document revision. DAC Converter The NE310L2 provides a Digital to Analog Converter. The signal (named DAC) is available on pin R16 of the NE310L2. Enabling DAC Available in a next document revision.

  • Page 39: Rf Section

    The antenna and antenna transmission line on PCB for a Telit NE310L2 device shall fulfil the following requirements:...
  • Page 40  if EM noisy devices (such as fast switching ICs, LCD and so on) are present on the PCB hosting the NE310L2, take care of the shielding of the antenna line by burying it in an inner layer of PCB and surrounding it with the Ground planes, or shield it with a metal frame cover;...

  • Page 41: Mechanical Design

    NE310L2 Hardware Design Guide MECHANICAL DESIGN Drawing NE310L2-W1 Figure Mechanical Drawing NE310L2-W1 1VV0301711 Rev4 Page 41 of 74 2022-06-24 Not Subject to NDA...

  • Page 42: Ne310L2-Ww

    NE310L2 Hardware Design Guide NE310L2-WW Figure Mechanical Drawing NE310L2-WW Note: Dimensions in mm. General Tolerance ±0.1, Angular Tolerance ±1°, The tolerance is not cumulative. 1VV0301711 Rev4 Page 42 of 74 2022-06-24 Not Subject to NDA...

  • Page 43: Application Pcb Design

    NE310L2 Hardware Design Guide APPLICATION PCB DESIGN The NE310L2 modules have been designed in order to be compliant with a standard lead- free SMT process. Footprint NE310L2-W1 COPPER PATTERN (top view) Figure 7: NE310L2-W1 Copper Pattern (top view) 1VV0301711 Rev4...
  • Page 44 NE310L2 Hardware Design Guide SOLDER RESIST PATTERN (top view) Figure 8: NE310L2-W1 Solder resist pattern (top view) 1VV0301711 Rev4 Page 44 of 74 2022-06-24 Not Subject to NDA...

  • Page 45: Ne310L2-Ww

    NE310L2 Hardware Design Guide NE310L2-WW Figure 9: NE310L2-WW Copper Pattern top view 1VV0301711 Rev4 Page 45 of 74 2022-06-24 Not Subject to NDA...
  • Page 46 NE310L2 Hardware Design Guide Figure 10: NE310L2-WW Solder resist pattern top view 1VV0301711 Rev4 Page 46 of 74 2022-06-24 Not Subject to NDA...

  • Page 47: Recommendations For Ne310L2-W1

    NE310L2 Hardware Design Guide Recommendations for NE310L2-W1 In order to easily rework the NE310L2-W1, it is recommended to consider in the application a positioning inhibition area of 2 mm around the module. It is also suggested, as a common rule for an SMT component, to avoid having a mechanical part of the application in direct contact with the module.

  • Page 48: Recommendations For Ne310L2-Ww

    NE310L2 Hardware Design Guide Recommendations for NE310L2-WW In order to easily rework the NE310L2-WW, it is recommended to consider in the application a positioning inhibition area of 2 mm around the module. It is also suggested, as a common rule for an SMT component, to avoid having a mechanical part of the application in direct contact with the module.

  • Page 49: Pcb Pad Design

    NE310L2 Hardware Design Guide PCB Pad Design Non solder mask defined (NSMD) type is recommended for the solder pads on the PCB. Copper Solder Mask NSMD (Soler Mask Defined) (Non Solder Mask Defined) Figure 13: PCB solder pad recommendations The recommendation for the PCB pads dimensions are 1:1 with module pads.

  • Page 50: Stencil

    NE310L2 Hardware Design Guide Stencil The layout of the stencil apertures can be the same as the recommended footprint (1:1), we suggest a thickness of stencil foil ≥ 120 µm. Solder Paste Item Lead Free Solder Paste Sn/Ag/Cu Table 25: Solder paste We recommend using only “no clean”...
  • Page 51 Table 26 Profile feature recommendations Note: All temperatures refer to topside of the package, measured on the package body surface Warning: THE NE310L2 MODULES WITHSTANDS ONE REFLOW PROCESS ONLY. Warning: The aforementioned solder reflow profile represents the typical SAC reflow limits and does not guarantee the adequate adherence of the module to the customer application throughout the temperature range.

  • Page 52: Packaging

    NE310L2 Hardware Design Guide PACKAGING Tray NE310L2-W1 Figure 15: NE310L2-W1 tray packaging 1VV0301711 Rev4 Page 52 of 74 2022-06-24 Not Subject to NDA...
  • Page 53 NE310L2 Hardware Design Guide Figure 16: NE310L2-W1 tray 1VV0301711 Rev4 Page 53 of 74 2022-06-24 Not Subject to NDA...

  • Page 54: Ne310L2-Ww

    NE310L2 Hardware Design Guide NE310L2-WW Figure 17: NE310L2-WW tray packaging 1VV0301711 Rev4 Page 54 of 74 2022-06-24 Not Subject to NDA...
  • Page 55 NE310L2 Hardware Design Guide Figure 18: NE310L2-WW tray 1VV0301711 Rev4 Page 55 of 74 2022-06-24 Not Subject to NDA...

  • Page 56: Reel

    NE310L2 Hardware Design Guide Reel NE310L2-W1 Figure 19: NE310L2-W1Module Positioning into the Carrier 1VV0301711 Rev4 Page 56 of 74 2022-06-24 Not Subject to NDA...

  • Page 57: Ne310L2-Ww

    NE310L2 Hardware Design Guide NE310L2-WW Figure 20: NE310L2-WW Module Positioning into the Carrier 1VV0301711 Rev4 Page 57 of 74 2022-06-24 Not Subject to NDA...

  • Page 58: 9.3 Moisture Sensitivity

    NE310L2 Hardware Design Guide 9.3 Moisture Sensitivity The NE310L2 is a level 3 Moisture Sensitive Device, in accordance with the standard IPC/JEDEC J-STD-020, it takes care of all related requirements for using this kind of components. Moreover, the customer must take care of the following conditions: a) Calculated shelf life in sealed bag: 12 months at <40°C and <90% relative humidity...

  • Page 59: Conformity Assessment Issues

    Table 27: Type approvals summary Europe Approvals RED Declaration of Conformity Hereby, Telit Communications S.p.A declares that the NE310L2-W1 and NE310L2-WW Modules are in compliance with Directive 2014/53/EU. The full text of the EU declaration of conformity is available at the following internet https://www.telit.com/red...

  • Page 60: Fcc And Ised Approval / Fcc Et Isde Approbation

    NE310L2 Hardware Design Guide antenna in the final hosting device may need a new assessment of host conformity to RED / UKCA. Model Antenna Type NE310L2-W1 Omnidirectional Antenna Gain 2.14 dBi NE310L2-WW Table 28: RED/UKCA Antenna Type Max Gain for RED / UKCA (dBi)

  • Page 61: Fcc Et Isde

    NE310L2 Hardware Design Guide Liste des Règles FCC et ISDE Applicable FCC and ISED Rules / Applicables Model Applicable ISED Rules Applicable FCC Rules Modèle Règles ISDE applicables NE310L2-W1 RSS: 132 Issue3, 133 Issue 6, 130 47 CFR Issue 2, 139 Issue 3;...

  • Page 62: Fcc/Ised Antennas / Fcc/Isde Antennes

    NE310L2 Hardware Design Guide Le présent appareil est conforme à l'exposition aux radiations FCC / ISED définies pour un environnement non contrôlé et répond aux directives d'exposition de la fréquence de la FCC radiofréquence (RF) et RSS 102 de la fréquence radio (RF) ISED règles ‐...
  • Page 63 NE310L2 Hardware Design Guide NE310L2-WW Antenna Gain 2.14 dBi Table 31 FCC Antenna Type Max Gain for FCC (dBi) Band NE310L2-W1 NE310L2-WW GPRS 850 GPRS 1900 FDD 2 FDD 4 FDD 5 FDD 12 FDD 13 FDD 25 FDD 26...

  • Page 64: Fcc Label And Compliance Information

    The external label will read as follows: “Contains Transmitter Module FCC ID: RI7NE310L2W1” or “Contains FCC ID: RI7NE310L2W1” for NE310L2-W1 and : “Contains Transmitter Module FCC ID: RI7NE310L2WW” or “Contains FCC ID: RI7NE310L2WW” for NE310L2-WW.

  • Page 65: Information On Test Modes And Additional Testing Requirements / Informations Sur Les Modes De Test Et Les Exigences De Test Supplémentaires

    NE310L2 Hardware Design Guide certification number for the module, preceded by the word "contains" or similar wording expressing the same meaning, as follows: Contains IC: XXXXXX-YYYYYYYYYYY In this case, XXXXXX-YYYYYYYYYYY is the module's certification number. Le produit hôte devra être correctement étiqueté, de façon à permettre l'identification des modules qui s'y trouvent.

  • Page 66: Fcc Additional Testing, Part 15 Subpart B Disclaimer

    NE310L2 Hardware Design Guide Si ce module est destiné à être utilisé dans un appareil portable, vous êtes responsable de l'approbation séparée pour satisfaire aux exigences SAR de la FCC Partie 2.1093 et IC RSS-102. FCC Additional Testing, Part 15 Subpart B Disclaimer...

  • Page 67: Product And Safety Information

    NE310L2 Hardware Design Guide PRODUCT AND SAFETY INFORMATION Copyrights and Other Notices SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE Although reasonable efforts have been made to ensure the accuracy of this document, Telit assumes no liability resulting from any inaccuracies or omissions in this document, or from the use of the information contained herein.

  • Page 68: Usage And Disclosure Restrictions

    NE310L2 Hardware Design Guide computer programs, including – but not limited to - the exclusive right to copy or reproduce in any form the copyrighted products. Accordingly, any copyrighted computer programs contained in Telit’s products described in this instruction manual shall not be copied (reverse engineered) or reproduced in any manner without the express written permission of the copyright owner, being Telit or the Third Party software supplier.

  • Page 69: Trademarks

    NE310L2 Hardware Design Guide Trademarks TELIT and the Stylized T-Logo are registered in the Trademark Office. All other product or service names are property of their respective owners. 3rd Party Rights The software may include Third Party’s software Rights. In this case the user agrees to comply with all terms and conditions imposed in respect of such separate software rights.

  • Page 70: Safety Recommendations

    NE310L2 Hardware Design Guide Safety Recommendations Make sure the use of this product is allowed in your country and in the environment required. The use of this product may be dangerous and has to be avoided in areas where:  it can interfere with other electronic devices, particularly in environments such as hospitals, airports, aircrafts, etc.

  • Page 71: Glossary

    NE310L2 Hardware Design Guide GLOSSARY Analog – Digital Converter BPSK Modulation used for in OFDM symbols Clock CMOS Complementary Metal – Oxide Semiconductor Chip Select Digital – Analog Converter Data Terminal Equipment Digital Voice Interface Electromagnetic Electromagnetic Compatibility Electromagnetic Interference...
  • Page 72 NE310L2 Hardware Design Guide Resource Block; the smallest unit of resources that can be allocated to a user Radio Frequency Reference Measurement Channel; it refers to a 3GPP standardized setting for the channel. For more details, refer to 3GPP TS 36.521-1 Real Time Clock Resource Unit (NB IoT Only);...

  • Page 73: Document History

    Changes 2022-06-24 Par 3, Par 4 and Par 5 Updated Updated Power-on timing Added Moisture Sensitivity information Extended Voltange Range for NE310L2-W1 2022-03-12 UKCA certification added Par 2, Par 3 and Par 4 Updated 2021-08-09 Minor changes on the language and on the layout...

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