User's Manual

ManualsBrandsTelit Communications ManualsElectronicsLE910-NAG LTE/HSPA/GPRS/GSM module supporting frequency bands GSM/GPRS 850/1900, HSPA FDD II and FDDV and LTE FDD 2, 4, 5 and 17

LE910 Hardware User Guide

1vv03701089 Rev.7 – 25-10-2015

Summary of content (88 pages)

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LE910 Hardware User Guide 1vv03701089 Rev.
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LE910 Hardware User Guide 1vv0301089 Rev.7 – 25-10-2015 Applicability Table PRODUCT LE910-EUG LE910-NAG LE910-NVG LE910-SVG LE910-SKG Reproduction forbidden without Telit Communications S.p.A.
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LE910 Hardware User Guide 1vv0301089 Rev.7 – 25-10-2015 SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE Notice While reasonable efforts have been made to assure the accuracy of this document, Telit assumes no liability resulting from any inaccuracies or omissions in this document, or from use of the information obtained herein. The information in this document has been carefully checked and is believed to be entirely reliable. However, no responsibility is assumed for inaccuracies or omissions.
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LE910 Hardware User Guide 1vv0301089 Rev.7 – 25-10-2015 Usage and Disclosure Restrictions License Agreements The software described in this document is the property of Telit and its licensors. It is furnished by express license agreement only and may be used only in accordance with the terms of such an agreement. Copyrighted Materials Software and documentation are copyrighted materials. Making unauthorized copies is prohibited by law.
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LE910 Hardware User Guide 1vv0301089 Rev.7 – 25-10-2015 Contents 1 INTRODUCTION ......................................................................................................................................................... 8 1.1 SCOPE ................................................................................................................................................................................ 8 1.2 AUDIENCE ........................................................................
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LE910 Hardware User Guide 1vv0301089 Rev.7 – 25-10-2015 7.2 GNSS SIGNALS PINOUT ....................................................................................................................................................... 49 7.3 GPS/GLONASS ANTENNA REQUIREMENTS............................................................................................................................ 50 7.3.1 GNSS Antenna - PCB Line Guidelines ........................................................................
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LE910 Hardware User Guide 1vv0301089 Rev.7 – 25-10-2015 16.9.2 Reel Detail ............................................................................................................................................................ 80 16.9.3 Packaging Detail .................................................................................................................................................. 81 16.10 MOISTURE SENSITIVITY ............................................................................
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LE910 Hardware User Guide 1vv0301089 Rev.7 – 25-10-2015 1 Introduction 1.1 Scope The aim of this document is the description of some hardware solutions useful for developing a product with the Telit LE910 module. 1.2 Audience This document is intended for Telit customers, who are integrators, about to implement their applications using our LE910 modules. 1.
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LE910 Hardware User Guide 1vv0301089 Rev.7 – 25-10-2015 1.4 Text Conventions Danger – This information MUST be followed or catastrophic equipment failure or bodily injury may occur. Caution or Warning – Alerts the user to important points about integrating the module, if these points are not followed, the module and end user equipment may fail or malfunction. Tip or Information – Provides advice and suggestions that may be useful when integrating the module. All dates are in ISO 8601 format, i.e.
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LE910 Hardware User Guide 1vv0301089 Rev.7 – 25-10-2015 1.6 1.7 Document History Revision ISSUE#0 ISSUE#1 Da t e 2013-11-07 2013-12-20 ISSUE#2 2014-05-12 ISSUE#3 2014-06-19 ISSUE#4 2014-10-10 ISSUE#5 2014-12-22 ISSUE#6 2014-07-08 Changes Preliminary Version Updated schematics & tray drawing; Added LE910-SVG and LE910-SKG; LE910-EUG now Dual Band 2G (900/1800); added B5 WCDMA on LE910-EUG. Added Conformity assessment issues section for LE910-NVG, SVG and NAG; updated chapter 10 (USB).
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LE910 Hardware User Guide 1vv0301089 Rev.7 – 25-10-2015 2 Overview The aim of this document is the description of some hardware solutions useful for developing a product with the Telit LE910 module. In this document all the basic functions of a mobile phone will be taken into account; for each one of them a proper hardware solution will be suggested and eventually the wrong solutions and common errors to be avoided will be evidenced.
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LE910 Hardware User Guide 1vv0301089 Rev.7 – 25-10-2015 3 LE910 module connections 3.1 PIN-OUT PAD Signal I/O Function USB differential Data (+) Type COMMENT USB HS 2.0 COMMUNICATION PORT B15 USB_D+ I/O C15 USB_D- I/O USB differential Data (-) I Power sense for the internal USB transceiver. VUSB A13 Asynchronous Serial Port (USIF0) – Prog. / Data + HW Flow Control N15 C103/TXD I Serial data input from DTE CMOS 1.8V M15 C104/RXD M14 C108/DTR O Serial data output to DTE CMOS 1.
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LE910 Hardware User Guide 1vv0301089 Rev.7 – 25-10-2015 K13 WiFi_SD2 I/O Wi-Fi SD Serial Data 2 1.8V H13 WiFi_SD3 I/O Wi-Fi SD Serial Data 3 1.8V C8 GPIO_01 I/O GPIO_01 /STAT LED CMOS 1.8V C9 GPIO_02 I/O GPIO_02 CMOS 1.8V C10 GPIO_03 I/O GPIO_03 CMOS 1.8V C11 GPIO_04 I/O GPIO_04 CMOS 1.8V B14 GPIO_05 I/O GPIO_05 CMOS 1.8V C12 GPIO_06 I/O GPIO_06 CMOS 1.8V DIGITAL IO C13 GPIO_07 I/O GPIO_07 CMOS 1.8V K15 GPIO_08 I/O GPIO_08 CMOS 1.
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LE910 Hardware User Guide 1vv0301089 Rev.
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LE910 Hardware User Guide 1vv0301089 Rev.7 – 25-10-2015 WARNING: Reserved pins must not be connected. NOTE: If not used, almost all pins should be left disconnected.
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LE910 Hardware User Guide 1vv0301089 Rev.7 – 25-10-2015 The above pins are also necessary to debug the application when the module is assembled on it so we recommend connecting them also to dedicated test point. Reproduction forbidden without Telit Communications S.p.A.
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LE910 Hardware User Guide 1vv0301089 Rev.7 – 25-10-2015 3.1.
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LE910 Hardware User Guide 1vv0301089 Rev.7 – 25-10-2015 3.2 LE910 Mechanical Dimension/weight The Telit LE910 module overall dimensions are: • Length: 28.2 mm , +/- 0.15 mm Tolerance • Width: 28.2 mm , +/- 0.15 mm Tolerance • Thickness: 2.2 mm , +/- 0.22 mm Tolerance • Weight: about 9 grams 3.3 Environmental requirements 3.3.1 Temperature range Operating Temperature Range Storage and non-operating Temperature Range –40°C ~ +85°C –40°C ~ +85°C 3.3.
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LE910 Hardware User Guide 1vv0301089 Rev.7 – 25-10-2015 4 Hardware Commands 4.1 Turning ON the LE910 To turn on the LE910 the pad ON_OFF* must be tied low following timing diagram in Chapter 4.2. The maximum current that can be drained from the ON_OFF* pad is 0,1 mA. A simple circuit for this purpose is: NOTE: Don’t use any pull up resistor on the ON_OFF* line, it is internally pulled up.
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LE910 Hardware User Guide 1vv0301089 Rev.7 – 25-10-2015 For example: 1- Let’s assume you need to drive the ON_OFF* pad with a totem pole output of a +3/5 V microcontroller (uP_OUT1): 2- Let’s assume you need to drive the ON_OFF* pad directly with an ON/OFF button: Reproduction forbidden without Telit Communications S.p.A.
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LE910 Hardware User Guide 1vv0301089 Rev.7 – 25-10-2015 4.2 Initialization and Activation state The LE910 takes about 15 seconds to complete internal initialization and to be ready for normal operation. NOTE: Any kind of AT-command is not available during the Initialization state. DTE can send AT-commands only in Activation state Reproduction forbidden without Telit Communications S.p.A.
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LE910 Hardware User Guide 1vv0301089 Rev.7 – 25-10-2015 4.3 Turning OFF the LE910 Turning off of the device can be done in two ways:  via AT command (see LE910 Software User Guide, AT#SHDN)  by tying low pin ON_OFF* for 2 second Either ways, the LE910 issues a detach request to network and saves all parameters in the internal memory and in the simcard. 4.3.1 Shutdown by Software Command LE910 can be shut down using the AT#SHDN command.
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LE910 Hardware User Guide 1vv0301089 Rev.7 – 25-10-2015 4.3.2 Hardware Shutdown To turn OFF LE910 the pad ON/OFF# must be tied low for at least 2 seconds and then released. Same circuitry and timing for the power on must be used. When the hold time of ON/OFF# is above 2 seconds, LE910 goes into the finalization state and finally will shut down PWRMON at the end of this state. The period of the finalization state can differ according to the situation in which the LE910 is so it cannot be fixed definitely.
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LE910 Hardware User Guide 1vv0301089 Rev.7 – 25-10-2015 4.4 LE910 Unconditional Shutdown The Unconditional Shutdown of the module could be activated using the HW_SHUTDOWN* line (pad R13). WARNING: The hardware unconditional Shutdown must not be used during normal operation of the device since it does not detach the device from the network. It shall be kept as an emergency exit procedure.
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LE910 Hardware User Guide 1vv0301089 Rev.7 – 25-10-2015 A typical circuit is the following: For example: 1- Let us assume you need to drive the HW_SHUTDOWN* pad with a totem pole output of a +3/5 V microcontroller (uP_OUT2): Reproduction forbidden without Telit Communications S.p.A.
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LE910 Hardware User Guide 1vv0301089 Rev.7 – 25-10-2015 The below flow chart is describing the HW Shutdown procedure: “HW SHUTDOWN Unconditional” START HW_SHDN = LOW Delay 1s Delay 200ms Disconnect VBATT HW_SHDN = HIGH PWRMON = ON Y N “HW SHUTDOWN Unconditional” END Reproduction forbidden without Telit Communications S.p.A.
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LE910 Hardware User Guide 1vv0301089 Rev.7 – 25-10-2015 4.5 Summary of Turning ON and OFF the module Below chart describes the overall sequences for Turning ON and OFF. Reproduction forbidden without Telit Communications S.p.A.
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LE910 Hardware User Guide 1vv0301089 Rev.7 – 25-10-2015 5 Power Supply The power supply circuitry and board layout are a very important part in the full product design and they strongly reflect on the product overall performances, hence read carefully the requirements and the guidelines that will follow for a proper design. 5.
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LE910 Hardware User Guide 1vv0301089 Rev.7 – 25-10-2015 5.2 Power Consumption LE910 current consumption Mode Average (mA) Mode description SWITCHED OFF Module supplied but Switched Off Switched Off 40uA IDLE mode (GSM/EDGE) WCDMA 16 AT+CFUN=1 GSM 19 Normal mode: full functionality of the module LTE 20 Disabled TX and RX; module is not registered on the AT+CFUN=4 12 network AT+CFUN=5 GSM 4.4 DRx2 3.3 DRx3 2.8 DRx4 2.5 DRx5 2.3 DRx6 2.1 DRx7 2.0 DRx8 1.9 DRx9 WCDMA 2.8 DRx6 2.2 DRx7 1.8 DRx8 1.4 DRx9 LTE 6.
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LE910 Hardware User Guide 1vv0301089 Rev.7 – 25-10-2015 NOTE: The electrical design for the Power supply should be made ensuring it will be capable of a peak current output of at least 2A if the LE910 supports GSM operation. Reproduction forbidden without Telit Communications S.p.A.
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LE910 Hardware User Guide 1vv0301089 Rev.7 – 25-10-2015 5.3 General Design Rules The principal guidelines for the Power Supply Design embrace three different design steps:  the electrical design  the thermal design  the PCB layout. 5.3.1 Electrical Design Guidelines The electrical design of the power supply depends strongly from the power source where this power is drained.
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LE910 Hardware User Guide 1vv0301089 Rev.7 – 25-10-2015 An example of linear regulator with 5V input is: 5.3.1.2 + 12V Guidelines input Source Power Supply Design  The desired output for the power supply is 3.8V, hence due to the big difference between the input source and the desired output, a linear regulator is not suited and shall not be used. A switching power supply will be preferable because of its better efficiency especially with the 2A peak current load represented by the LE910.
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LE910 Hardware User Guide 1vv0301089 Rev.7 – 25-10-2015  Make sure the low ESR capacitor on the power supply output (usually a tantalum one) is rated at least 10V.  For Car applications a spike protection diode should be inserted close to the power input, in order to clean the supply from spikes.  A protection diode should be inserted close to the power input, in order to save the LE910 from power polarity inversion. This can be the same diode as for spike protection.
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LE910 Hardware User Guide 1vv0301089 Rev.7 – 25-10-2015 5.3.1.3 Battery Source Power Supply Design Guidelines The desired nominal output for the power supply is 3.8V and the maximum voltage allowed is 4.2V, hence a single 3.7V Li-Ion cell battery type is suited for supplying the power to the Telit LE910 module. WARNING: The three cells Ni/Cd or Ni/MH 3,6 V Nom.
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LE910 Hardware User Guide 1vv0301089 Rev.7 – 25-10-2015 5.3.2 Thermal Design Guidelines The thermal design for LE910 should be designed and tested in the following worse-case conditions at nominal voltage 3.
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LE910 Hardware User Guide 1vv0301089 Rev.7 – 25-10-2015  The PCB traces to the LE910 and the Bypass capacitor must be wide enough to ensure no significant voltage drops occur when the 2A current peaks are absorbed. This is for the same reason as previous point. Try to keep this trace as short as possible.
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LE910 Hardware User Guide 1vv0301089 Rev.7 – 25-10-2015 The below figure shows the recommended circuit: Reproduction forbidden without Telit Communications S.p.A.
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LE910 Hardware User Guide 1vv0301089 Rev.7 – 25-10-2015 6 GSM/WCDMA/LTE Radio Section 6.
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LE910 Hardware User Guide 1vv0301089 Rev.7 – 25-10-2015 6.4 Sensitivity Band Typical (dBm) 3GPP minimum requirements (dBm) Note GSM 850 GSM 900 DCS 1800 PCS 1900 WCDMA FDD B1 WCDMA FDD B2 WCDMA FDD B5 WCDMA FDD B8 LTE FDD B2 LTE FDD B3 LTE FDD B4 LTE FDD B5 LTE FDD B7 LTE FDD B13 LTE FDD B17 LTE FDD B20 -111.5 -111.5 -110.5 -110.0 -115.0 -114.5 -115.0 -114.5 -103.0 -102.5 -102.5 -103.0 -100.5 -101.5 -101.5 -102.5 < -102.0 < -102.0 < -102.0 < -102.0 < -106.7 < -104.7 < -106.7 < -103.7 < -94.3 < -93.
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LE910 Hardware User Guide 1vv0301089 Rev.7 – 25-10-2015 6.5 GSM/WCDMA/LTE Antenna Requirements The antenna connection and board layout design are the most important aspect in the full product design as they strongly affect the product overall performances, hence read carefully and follow the requirements and the guidelines for a proper design.
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LE910 Hardware User Guide 1vv0301089 Rev.7 – 25-10-2015 6.6 GSM/WCDMA/LTE - PCB line Guidelines  Make sure that the transmission line’s characteristic impedance is 50ohm ;  Keep line on the PCB as short as possible, since the antenna line loss shall be less than around 0,3 dB;  Line geometry should have uniform characteristics, constant cross section, avoid meanders and abrupt curves;  Any kind of suitable geometry / structure (Microstrip, Stripline, Coplanar, Grounded Coplanar Waveguide...
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LE910 Hardware User Guide 1vv0301089 Rev.7 – 25-10-2015 6.7 GSM/WCDMA/LTE Antenna - Installation Guidelines         Install the antenna in a place covered by the GSM signal. Antenna must not be installed inside metal cases Antenna shall also be installed according Antenna manufacturer instructions Antenna integration should optimize the Radiation Efficiency. Efficiency values > 50% are recommended on all frequency bands.
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LE910 Hardware User Guide 1vv0301089 Rev.7 – 25-10-2015 7 GNSS Receiver The LE910 module is integrating a GNSS receiver that could be used in Autonomous or in A-GPS (assisted GPS) mode. The LE910 module includes an embedded LNA (13.5dB gain typ.) with front-end filter and inter-stage filter in order to connect directly a passive antenna connected to ANT_GNSS pad. In case of external antenna connection, proper DC-decoupling and ESD protection must be inserted to ANT_GNSS pad.
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LE910 Hardware User Guide 1vv0301089 Rev.7 – 25-10-2015 7.3 GPS/GLONASS Antenna Requirements GPS/GLONASS ANTENNA REQUIREMENTS for LE910 1575.42 MHz ±2MHz (GPS) Frequency range 1598.0625 – 1607.0625 MHz (GLONASS) Average Gain over >-5dBi direction RHCP (recommended) Linear (acceptable) Polarization Avoid the use of LHCP antennas 50 ohm Impedance ≤ 2:1 (recommended for best sensitivity performance) VSWR recommended 7.3.1 GNSS Antenna - PCB Line Guidelines  Ensure that the antenna line impedance is 50ohm.
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LE910 Hardware User Guide 1vv0301089 Rev.7 – 25-10-2015 7.3.2 RF Trace Losses RF Trace losses are difficult to estimate on a PCB without having the appropriate tables or RF simulation software to estimate what the losses would be. A good rule of thumb would be to keep the RF traces as short as possible, make sure they are 50 ohms impedance and don’t contain any sharp bends. 7.3.
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LE910 Hardware User Guide 1vv0301089 Rev.7 – 25-10-2015 8 Logic level specifications The following table shows the logic level specifications used in the LE910 interface circuits: Absolute Maximum Ratings -Not Functional Parameter Min Max Input level on any digital pin (CMOS 1.8) with respect to ground -0.3V 2.16V Operating Range - Interface levels (1.8V CMOS) Level Min Max Input high level 1.5V 2.1V Input low level 0V 0.5V Output high level 1.35V 1.8 Output low level 0V 0.
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LE910 Hardware User Guide 1vv0301089 Rev.7 – 25-10-2015 9 Unconditional Shutdown Signal Function I/O PAD HW_SHUTDOWN* Unconditional Shutdown of the Module I R13 HW_SHUTDOWN* is used to unconditionally shutdown the LE910. Whenever this signal is pulled low, the LE910 is reset. When the device is reset it stops any operation. After the release of the line, the LE910 is unconditionally shut down, without doing any detach operation from the network where it is registered.
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LE910 Hardware User Guide 1vv0301089 Rev.7 – 25-10-2015 10 USB Port The LE910 module includes a Universal Serial Bus (USB) transceiver 2.0, which operates at USB high-speed (480Mbits/sec) and is compatible with older USB full-speed (12Mbits/sec). 10.1 USB 2.0 HS Description The following table is listing the available signals: PAD Signal I/O Function Type B15 USB_D+ I/O USB differential Data (+) 3.3V C15 USB_D- I/O USB differential Data (-) 3.
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LE910 Hardware User Guide 1vv0301089 Rev.7 – 25-10-2015 11 Serial Ports The LE910 module is provided with by 2 Asynchronous serial ports:  MODEM SERIAL PORT 1 (Main)  MODEM SERIAL PORT 2 (Auxiliary) Several configurations can be designed for the serial port on the OEM hardware, but the most common are:  RS232 PC com port  microcontroller UART @ 1.8V (Universal Asynchronous Receive Transmit)  microcontroller UART @ 5V or other voltages different from 1.
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LE910 Hardware User Guide 1vv0301089 Rev.7 – 25-10-2015 11.1 MODEM SERIAL PORT 1 The serial port 1 on the LE910 is a +1.8V UART with all the 7 RS232 signals. It differs from the PC-RS232 in the signal polarity (RS232 is reversed) and levels.
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LE910 Hardware User Guide 1vv0301089 Rev.7 – 25-10-2015 11.2 MODEM SERIAL PORT 2 (USIF1) The secondary serial port on the LE910 is composed by only the RX and TX lines. The signals of the LE910 serial port are: PAD Signal I/O Function Type D15 TX_AUX O Auxiliary UART (TX Data to DTE) 1.8V E15 RX_AUX I Auxiliary UART (RX Data from DTE) 1.
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LE910 Hardware User Guide 1vv0301089 Rev.7 – 25-10-2015 11.3 RS232 level translation In order to interface the LE910 with a PC com port or a RS232 (EIA/TIA-232) application a level translator is required. This level translator must:  invert the electrical signal in both directions;  Change the level from 0/1.8V to +15/-15V.
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LE910 Hardware User Guide 1vv0301089 Rev.7 – 25-10-2015 An example of RS232 level adaptation circuitry could be done using a MAXIM transceiver (MAX218) In this case the chipset is capable to translate directly from 1.8V to the RS232 levels (Example done on 4 signals only). NOTE: In this case the length of the lines on the application has to be carefully checked to avoid problems in case of High Speed data rates on RS232.
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LE910 Hardware User Guide 1vv0301089 Rev.7 – 25-10-2015 12 Peripheral Ports In addition to Telit LE910 serial ports, the LE910 support 1 x SDIO – Secure Digital I/O peripheral port to be interfaced with a specific Wi-Fi chipset. 12.1 Wi-Fi (SDIO) control Interface The LE910 has an integrated SW driver for supporting Qualcomm QCA6053 Wi-Fi chipset via a dedicated SD bus interface. The SD bus interface can be used only with the QCA6053 chipset, and can’t be used as external SD/MMC card connection.
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LE910 Hardware User Guide 1vv0301089 Rev.7 – 25-10-2015 13 Audio Section Overview The Audio of the LE910 Module is carried by DVI digital audio interface. The audio port can be directly connected to end device using digital interface, or via one of the several compliant codecs (in case an analog audio is needed). 13.
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LE910 Hardware User Guide 1vv0301089 Rev.7 – 25-10-2015 14 General Purpose I/O The LE910 module is provided by a set of Digital Input / Output pins Input pads can only be read; they report the digital value (high or low) present on the pad at the read time. Output pads can only be written or queried and set the value of the pad output. An alternate function pad is internally controlled by the LE910 firmware and acts depending on the function implemented.
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LE910 Hardware User Guide 1vv0301089 Rev.7 – 25-10-2015 Absolute Maximum Ratings -Not Functional Parameter Input level on any digital pin (CMOS 1.8) with respect to ground Min Max -0.3V 2.16V Operating Range - Interface levels (1.8V CMOS) 14.2 Level Min Max Input high level 1.5V 2.1V Input low level 0V 0.5V Output high level 1.35V 1.8 Output low level 0V 0.
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LE910 Hardware User Guide 1vv0301089 Rev.7 – 25-10-2015 14.4 Indication of network service availability The STAT_LED pin status shows information on the network service availability and Call status. The function is available as alternate function of GPIO_01 (to be enabled using the AT#GPIO=1,0,2 command). In the LE910 modules, the STAT_LED needs an external transistor to drive an external LED. Therefore, the status indicated in the following table is reversed with respect to the pin status.
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LE910 Hardware User Guide 1vv0301089 Rev.7 – 25-10-2015 Reproduction forbidden without Telit Communications S.p.A.
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LE910 Hardware User Guide 1vv0301089 Rev.7 – 25-10-2015 14.5 RTC Bypass out The VRTC pin brings out the Real Time Clock supply, which is separate from the rest of the digital part, allowing having only RTC going on when all the other parts of the device are off. To this power output a backup capacitor can be added in order to increase the RTC autonomy during power off of the battery. NO Devices must be powered from this pin. 14.
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LE910 Hardware User Guide 1vv0301089 Rev.7 – 25-10-2015 14.7 ADC Converter 14.7.1 Description The LE910 is provided by one AD converter. It is able to read a voltage level in the range of 0÷1.7 volts applied on the ADC pin input, store and convert it into 8 bit word. The following table is showing the ADC characteristics: Input Voltage range AD conversion Resolution Min 0 - Max 1.7 8 < 6,6 Units Volt bits mV The input line is named as ADC_IN1 and it is available on Pad B1 14.7.
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LE910 Hardware User Guide 1vv0301089 Rev.7 – 25-10-2015 15 Application guide 15.1 Download and Debug Port One of the following options should be chosen in the design of host application in order to download or upgrade the Telit software and debug LE910 when LE910 is already mounted on a host system. Users who use both UART and USB interfaces to communicate with LE910 - Must implement a USB download method in a host system for upgrading LE910 when it is mounted.
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LE910 Hardware User Guide 1vv0301089 Rev.7 – 25-10-2015 16 Mounting the application LE910 on the 16.1 General The LE910 modules have been designed in order to be compliant with a standard lead-free SMT process. 16.2 Module finishing & dimensions Pin B1 Bottom view Dimensions in mm Lead-free Alloy: Surface finishing Ni/Au for all solder pads Reproduction forbidden without Telit Communications S.p.A.
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LE910 Hardware User Guide 1vv0301089 Rev.7 – 25-10-2015 Reproduction forbidden without Telit Communications S.p.A.
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LE910 Hardware User Guide 1vv0301089 Rev.7 – 25-10-2015 16.3 Recommended foot print for the application TOP VIEW In order to easily rework the LE910 is suggested to consider on the application a 1.5 mm placement inhibit area around the module. It is also suggested, as common rule for an SMT component, to avoid having a mechanical part of the application in direct contact with the module.
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LE910 Hardware User Guide 1vv0301089 Rev.7 – 25-10-2015 16.4 Stencil Stencil’s apertures layout can be the same of the recommended footprint (1:1), we suggest a thickness of stencil foil ≥ 120 µm. 16.5 PCB pad design Non solder mask defined (NSMD) type is recommended for the solder pads on the PCB. Copper Pad Pad Solder Mask PCB SMD (Solder Mask Defined) NSMD (Non Solder Mask Defined) Reproduction forbidden without Telit Communications S.p.A.
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LE910 Hardware User Guide 1vv0301089 Rev.7 – 25-10-2015 16.6 PCB pad dimensions The recommendation for the PCB pads dimensions are described in the following image (dimensions in mm) Solder resist openings Reproduction forbidden without Telit Communications S.p.A.
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LE910 Hardware User Guide 1vv0301089 Rev.7 – 25-10-2015 It is not recommended to place via or micro-via not covered by solder resist in an area of 0,3 mm around the pads unless it carries the same signal of the pad itself (see following figure). Inhibit area for micro-via Holes in pad are allowed only for blind holes and not for through holes. Recommendations for PCB pad surfaces: Finish Electro-less Ni / Immersion Au Layer thickness [µm] 3 –7 / 0.05 – 0.
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LE910 Hardware User Guide 1vv0301089 Rev.7 – 25-10-2015 16.7 Solder paste Solder paste Lead free Sn/Ag/Cu We recommend using only “no clean” solder paste in order to avoid the cleaning of the modules after assembly. 16.7.1 LE910 Solder reflow Recommended solder reflow profile: Reproduction forbidden without Telit Communications S.p.A.
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LE910 Hardware User Guide 1vv0301089 Rev.7 – 25-10-2015 16.8 Packing system (Tray) The LE910 modules are packaged on trays of 36pieces each. These trays can be used in SMT processes for pick & place handling. Reproduction forbidden without Telit Communications S.p.A.
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LE910 Hardware User Guide 1vv0301089 Rev.7 – 25-10-2015 16.9 Packing System (Reel) The LE910 can be packaged on reels of 200 pieces each. See figure for module positioning into the carrier. 16.9.1 Carrier Tape Detail Reproduction forbidden without Telit Communications S.p.A.
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LE910 Hardware User Guide 1vv0301089 Rev.7 – 25-10-2015 16.9.2 Reel Detail Reproduction forbidden without Telit Communications S.p.A.
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LE910 Hardware User Guide 1vv0301089 Rev.7 – 25-10-2015 16.9.3 Packaging Detail 16.10 Moisture sensitivity The LE910 is a Moisture Sensitive Device level 3, in according with standard IPC/JEDEC JSTD-020, take care all the relatives requirements for using this kind of components. Moreover, the customer has to take care of the following conditions: a) Calculated shelf life in sealed bag: 12 months at <40°C and <90% relative humidity (RH).
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LE910 Hardware User Guide 1vv0301089 Rev.7 – 25-10-2015 17 SAFETY RECOMMANDATIONS READ CAREFULLY Be sure the use of this product is allowed in the country and in the environment required.
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LE910 Hardware User Guide 1vv0301089 Rev.7 – 25-10-2015 18 Conformity assessment issues 18.1 1999/5/EC Directive The LE910-EUG module has been evaluated against the essential requirements of the 1999/5/EC Directive. Bulgarian Czech Danish Dutch English Estonian German Greek Hungarian Finnish French Icelandic Italian С настоящето Telit Communications S.p.A. декларира, че 2G/3G/LTE module отговаря на съществените изисквания и другите приложими изисквания на Директива 1999/5/ЕС.
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LE910 Hardware User Guide 1vv0301089 Rev.7 – 25-10-2015 Ar šo Telit Communications S.p.A. deklarē, ka 2G/3G/LTE module atbilst Direktīvas 1999/5/EK būtiskajām prasībām un citiem ar to saistītajiem noteikumiem. Lithuanian Šiuo Telit Communications S.p.A. deklaruoja, kad šis 2G/3G/LTE module atitinka esminius reikalavimus ir kitas 1999/5/EB Direktyvos nuostatas. Maltese Hawnhekk, Telit Communications S.p.A.
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LE910 Hardware User Guide 1vv0301089 Rev.7 – 25-10-2015 The conformity assessment procedure referred to in Article 10 and detailed in Annex IV of Directive 1999/5/EC has been followed with the involvement of the following Notified Body: AT4 wireless, S.A. Parque Tecnologico de Andalucía C/ Severo Ochoa 2 29590 Campanillas – Málaga SPAIN Notified Body No: 1909 Thus, the following marking is included in the product: 1909 The full declaration of conformity can be found on the following address: http://www.
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LE910 Hardware User Guide 1vv0301089 Rev.7 – 25-10-2015 18.2 FCC/IC Regulatory notices Modification statement Telit has not approved any changes or modifications to this device by the user. Any changes or modifications could void the user’s authority to operate the equipment. Telit n’approuve aucune modification apportée à l’appareil par l’utilisateur, quelle qu’en soit la nature. Tout changement ou modification peuvent annuler le droit d’utilisation de l’appareil par l’utilisateur.
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LE910 Hardware User Guide 1vv0301089 Rev.7 – 25-10-2015 Cet appareil est conforme aux limites d'exposition aux rayonnements de la IC pour un environnement non contrôlé. L'antenne doit être installé de façon à garder une distance minimale de 20 centimètres entre la source de rayonnements et votre corps. Gain de l'antenne doit être ci-dessous: Bande de fréquence LE910-NAG LE910-NVG LE910-SVG 700 MHz 5.66 dBi 5.95 dBi 5.95 dBi 850 MHz 3.64 dBi 6.13 dBi N/A 1700 MHz 5.00 dBi 5.00 dBi 5.00 dBi 1900 MHz 2.
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LE910 Hardware User Guide 1vv0301089 Rev.7 – 25-10-2015 LE910-SVG Contains FCC ID: RI7LE910SV Contains IC: 5131A-LE910SV L'appareil hôte doit être étiqueté comme il faut pour permettre l'identification des modules qui s'y trouvent. L'étiquette de certification du module donné doit être posée sur l'appareil hôte à un endroit bien en vue en tout temps.