Telit Wireless Solutions GE310-GNSS Hardware Design Manual
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Telit Wireless Solutions GE310-GNSS Hardware Design Manual

Telit Wireless Solutions GE310-GNSS Hardware Design Manual

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GE310-GNSS
Hardware Design Guide
1VV0301564 Rev. 5 – 2019-01-23
Mod.0818 2017-01 Rev.0

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  • Page 1 GE310-GNSS Hardware Design Guide 1VV0301564 Rev. 5 – 2019-01-23 Mod.0818 2017-01 Rev.0...

  • Page 2: Notice

    GE310-GNSS Hardware Design Guide SPECIFICATIONS ARE 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.

  • Page 3: Usage And Disclosure Restrictions

    GE310-GNSS Hardware Design Guide 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.

  • Page 4: Applicability Table

    GE310-GNSS Hardware Design Guide APPLICABILITY TABLE PRODUCTS GE310-GNSS 1VV0301564 Rev. 5 Page 4 of 89 2019-01-23...

  • Page 5: Table Of Contents

    GE310-GNSS Hardware Design Guide Contents NOTICE COPYRIGHTS ....................2 COMPUTER SOFTWARE COPYRIGHTS ............2 USAGE AND DISCLOSURE RESTRICTIONS ..........3 License Agreements ..............3 Copyrighted Materials ..............3 III. High Risk Materials ............... 3 Trademarks .................. 3 Third Party Rights ................. 3 APPLICABILITY TABLE ................
  • Page 6 GE310-GNSS Hardware Design Guide General Design Rules ..............27 4.3.1. Electrical Design Guidelines ............27 4.3.1.1. +5V Source Power Supply Design Guidelines ......27 4.3.2. +12V Source Power Supply Design Guidelines ......28 4.3.2.1. Battery Source Power Supply Design Guidelines ......29 4.3.3.
  • Page 7 GE310-GNSS Hardware Design Guide Power Consumption ..............61 GNSS Hosted configuration ............62 GNSS Stand Alone configuration ..........63 GNSS RF Front End Design ............63 7.5.1. RF Signal Requirements ............. 63 7.5.2. GPS Antenna Polarization ............65 7.5.3. GPS Antenna Gain ..............65 7.5.4.
  • Page 8 GE310-GNSS Hardware Design Guide Stencil ..................78 Solder paste ................78 Solder Reflow ................78 PACKAGING ................80 Tray .................... 80 Moisture sensitivity ..............82 CONFORMITY ASSESSMENT ISSUES ........83 Approvals..................83 Declaration of Conformity ............83 SAFETY RECOMMENDATIONS..........84 READ CAREFULLY ..............

  • Page 9: Introduction

    This document introduces the Telit GE310 modules and presents possible and recommended hardware solutions for developing a product based on this module. All the features and solutions detailed in this document are applicable to all GE310-GNSS variants, where GE310-GNSS refers to the variants listed in the applicability table.

  • Page 10: Text Conventions

    GE310-GNSS Hardware Design Guide 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.

  • Page 11: Related Documents

    GE310-GNSS Hardware Design Guide Related Documents • Telit EVK2 User Guide, 1vv0300704 1VV0301564 Rev. 5 Page 11 of 89 2019-01-23...

  • Page 12: General Product Description

    GE310-GNSS Hardware Design Guide 2. GENERAL PRODUCT DESCRIPTION Overview The GE310-GNSS is part of a new generation of modules in Telit’s 2G module portfolio. With its compact LGA footprint, it is designed for those m2m applications requiring miniature foot print.

  • Page 13: Target Market

    GE310-GNSS Hardware Design Guide Target market GE310-GNSS can be used for telematics applications where tamper-resistance, confidentiality, integrity, and authenticity of end-user information are required, for example: • Emergency call • Telematics services • Road pricing • Pay-as-you-drive insurance • Stolen vehicles tracking •...

  • Page 14: Tx Output Power

    GE310-GNSS Hardware Design Guide TX Output Power Band Power class 850/900 MHz Class 4 (2W) 1800/1900 MHz Class 1 (1W) 1VV0301564 Rev. 5 Page 14 of 89 2019-01-23...

  • Page 15: Mechanical Specifications

    GE310-GNSS Hardware Design Guide Mechanical specifications 2.6.1. Dimensions The overall dimensions of GE310-GNSS family are:  Length: 15 mm  Width: 18 mm  Thickness: 2.6 mm 1VV0301564 Rev. 5 Page 15 of 89 2019-01-23...

  • Page 16: Pins Allocation

    GE310-GNSS Hardware Design Guide 3. PINS ALLOCATION Pin-out Signal Function Type Comment Asynchronous Serial Port (USIF0) – Prog. / Data + HW Flow Control TXD0 Serial data input (TXD) from DTE CMOS 2.8V AA15 RXD0 Serial data output (RXD) to DTE CMOS 2.8V...
  • Page 17 GE310-GNSS Hardware Design Guide SIM_DAT External SIM signal – Data I/O 1.8 / 3V External SIM signal – Power supply for the SIM_VCC 1.8 / 3V SIMIN Presence SIM input CMOS 2.8V See next chapters DIGITAL IO Configurable GPIO01 CMOS 2.8V Configurable GPIO02 CMOS 2.8V...
  • Page 18 GE310-GNSS Hardware Design Guide Miscellaneous Functions S_LED Status LED CMOS 2.8V ON_OFF Input Command for Power ON/OFF CMOS 2.8V Reset CMOS 1.8V Alarm - RTC Indicator CMOS 2.8V Supply Output for external accessories / VAUX Power Power ON Monitor Audio Section...
  • Page 19 GE310-GNSS Hardware Design Guide RF Ground Power RF Ground Power RF Ground Power RF Ground Power RF Ground Power RF Ground Power Thermal Ground Power Thermal Ground Power Thermal Ground Power Thermal Ground Power Thermal Ground Power Thermal Ground Power...
  • Page 20 GE310-GNSS Hardware Design Guide Power Ground Power Power Ground Power Power Ground Power Power Ground Power RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED...
  • Page 21 GE310-GNSS Hardware Design Guide RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED AA13 RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED WARNING Reserved pins must not be connected. 1VV0301564 Rev. 5 Page 21 of 89 2019-01-23...
  • Page 22 GE310-GNSS Hardware Design Guide If not used, almost all pins should be left disconnected. The only exceptions are the following pins: Signal Note VBATT_PA VBATT A3, A7, A9, A13, A17, B4, B6, B10, B12, B14, B16, C19, D18, F8, F12, F18, G19, H6,...
  • Page 23 GE310-GNSS Hardware Design Guide SIM_VCC GNSS_LNA_EN GNSS_ON GNSS_NMEA_TX GNSS_NMEA_RX USB_D+ On TP or a Connector USB_D- On TP or a Connector USB_VBUS On TP or a Connector RTS pin should be connected to the GND (on the module side) if flow control is not used.

  • Page 24: Lga Pads Layout

    GE310-GNSS Hardware Design Guide LGA Pads Layout TOP VIEW 1VV0301564 Rev. 5 Page 24 of 89 2019-01-23...

  • Page 25: Power Supply

    GE310-GNSS Hardware Design Guide 4. 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.

  • Page 26: Power Consumption

    GE310-GNSS Hardware Design Guide Power Consumption Mode Average (mA) Mode Description Module OFF 0.160 Module switched OFF AT+CFUN=1 13.2 Normal mode AT+CFUN=4 12.2 Flight Mode AT+CFUN=0 12.1 Turn off radio and SIM power CSD TX/RX 223.2 GSM VOICE CALL GSM850 / GSM900 (PL5) CSD TX/RX 132.3...

  • Page 27: General Design Rules

    GE310-GNSS Hardware Design Guide 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. 4.3.1. Electrical Design Guidelines The electrical design of the power supply depends strongly from the power source where this power is drained.

  • Page 28: Source Power Supply Design Guidelines

    GE310-GNSS Hardware Design Guide 4.3.2. +12V Source Power Supply Design Guidelines • 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.

  • Page 29: Battery Source Power Supply Design Guidelines

    WARNING: The three cells Ni/Cd or Ni/MH 3,6 V Nom. Battery types or 4V PB types MUST NOT BE USED DIRECTLY since their maximum voltage can rise over the absolute maximum voltage for the GE310-GNSS and damage it. NOTE: DON’T USE any Ni-Cd, Ni-MH, and Pb battery types directly connected with GE310-GNSS.

  • Page 30: Thermal Design Guidelines

    GE310-GNSS Hardware Design Guide 4.3.3. Thermal Design Guidelines The thermal design for the power supply heat sink should be done considering the values described in the “Power Consumption” chapter. Considering the very low current during idle, especially if Power Saving function is enabled, it is possible to consider from the thermal point of view that the device absorbs current significantly only during calls.

  • Page 31: Power Supply Pcb Layout Guidelines

    • The Bypass low ESR capacitor must be placed close to the Telit GE310-GNSS power input pads or in the case 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 GE310-GNSS is wide enough to ensure a dropless connection even during the 2A current peaks.

  • Page 32: Rtc Bypass Out

    FBMH1608HM101 can be used for this purpose. The below figure shows the recommended circuit: RTC Bypass out The GE310-GNSS module is provided by an internal RTC section but its reference supply is VBATT. So, in order to maintain active the RTC programming, VBATT should not be removed 1VV0301564 Rev.

  • Page 33: Vaux Power Output

    GE310-GNSS Hardware Design Guide VAUX Power Output A regulated power supply output is provided in order to supply small devices from the module. The signal is in common with the PWRMON (module powered ON indication) function. This output is always active when the module is powered ON. The operating...

  • Page 34: Digital Section

    GE310-GNSS Hardware Design Guide 5. DIGITAL SECTION Logic Levels ABSOLUTE MAXIMUM RATINGS: Parameter Input level on any digital pin (CMOS 2.8) with respect -0.3V 3.08 to ground OPERATING RANGE – INTERFACE LEVELS (2.8V CMOS): Parameter Input high level 2.55V 2.9V Input low level 0.35V...

  • Page 35: Power On

    GE310-GNSS Hardware Design Guide Power On To turn on the GE310 the pad ON_OFF* must be tied low for at least 1 seconds and then released. The maximum current that can be drained from the ON_OFF* pad is 0,1 mA.
  • Page 36 GE310-GNSS Hardware Design Guide A flow chart showing the proper turn on procedure is displayed below: “Modem ON Proc” START VBATT > 3.22V ? PWMON = ON ? ON_OFF* = LOW GOTO “HW SHUTDOWN Delay = 1 Sec unconditional” ON_OFF* = HIGH...
  • Page 37 GE310-GNSS Hardware Design Guide A flow chart showing the AT commands managing procedure is displayed below: “Start AT CMD.” START DELAY 300msec Enter AT<CR> GOTO AT answer in “HW SHUTDOWN 1 sec ? unconditional” “Start AT CMD.” GOTO “Modem ON Proc.”...
  • Page 38 GE310-GNSS Hardware Design Guide 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: 1VV0301564 Rev.

  • Page 39: Power Off

    GE310-GNSS Hardware Design Guide Power Off The device could be turned off using the ON_OFF* pin When the procedure is activated, the device issues a detach request to network informing that the device will not be reachable any more. To turn OFF the GE310 the pad ON_OFF* must be tied low for at least 3 seconds and then released.
  • Page 40 GE310-GNSS Hardware Design Guide The following flow chart shows the proper turn off procedure: Modem OFF Proc. START PWRMON=ON? OFF Mode ON_OFF* = LOW AT#SHDN Delay >= 3 Sec ON_OFF* = HIGH “Modem OFF Proc” PWMON = ON ? Looping for more GOTO “HW Shutdown...

  • Page 41: Unconditional Restart

    GE310-GNSS Hardware Design Guide Unconditional Restart To unconditionally restart the GE310-GNSS, the pad RST must be tied low for at least 200 milliseconds and then released. The hardware unconditional Restart 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 to be done in the rare case that the device gets stuck waiting for some network or SIM responses.

  • Page 42: Operating Levels

    In order to avoid a back powering effect it is recommended to avoid having any HIGH logic level signal applied to the digital pins of the GE310-GNSS when the module is powered off or during a reboot transition. 1VV0301564 Rev. 5...
  • Page 43 Do not use any pull up resistor on the RST line nor any totem pole digital output. Using pull up resistor may bring to latch up problems on the GE310-GNSS power regulator and improper functioning of the module. To proper power on again the module please refer to the related paragraph (“Power ON”)

  • Page 44: Communication Ports

    On the GE310-GNSS the ports are CMOS 2.8V. 5.5.1.1. MODEM SERIAL PORT 0 (USIF0) The main serial port on the GE310-GNSS is a +2.8V UART with two flow control signals (CTS, RTS). It differs from the PC-RS232 in the signal polarity (RS232 is reversed) and levels.
  • Page 45 GE310-GNSS Hardware Design Guide NOTE: According to V.24, some signal names are referred to the application side, therefore on the GE310-GNSS side these signal are on the opposite direction: TXD on the application side will be connected to the receive line...

  • Page 46: Modem Serial Port 1 (Usif1)

    GE310-GNSS Hardware Design Guide 5.5.1.2. MODEM SERIAL PORT 1 (USIF1) The secondary serial port on the GE310-GNSS is a +2.8V UART It differs from the PC-RS232 in the signal polarity (RS232 is reversed) and levels. The following table is listing the available signals:...
  • Page 47 GE310-GNSS Hardware Design Guide NOTE: According to V.24, some signal names are referred to the application side, therefore on the GE310-GNSS side these signal are on the opposite direction: TXD on the application side will be connected to the receive line...

  • Page 48: Rs232 Level Translation

    GE310-GNSS Hardware Design Guide 5.5.1.3. RS232 LEVEL TRANSLATION In order to interface the module 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;...
  • Page 49 GE310-GNSS Hardware Design Guide An example of level translation circuitry of this kind is: The example is done with a MAXIM MAX3237 Transceiver that could accept supply voltages of 3V DC. Not exceeded with supply voltage higher then 3.1VDC because this is the higher voltage limit of module’s inputs.
  • Page 50 GE310-GNSS Hardware Design Guide Second solution could be done using a MAXIM transceiver (MAX218) In this case the compliance with RS232 (+-5V) is possible. Another level adapting method could be done using a standard RS232 Transceiver (MAX3237EAI) adding some resistors to adapt the levels on the module’s Input lines.

  • Page 51: 5V Uart Level Translation

    GE310-GNSS Hardware Design Guide 5.5.1.4. 5V UART level translation If the OEM application uses a microcontroller with a serial port (UART) that works at a voltage different from 2.8 - 3V, then a circuitry has to be provided to adapt the different levels of the two set of signals.

  • Page 52: General Purpose I/O

    GE310-GNSS Hardware Design Guide General purpose I/O The GE310-GNSS module is provided by a set of Configurable Digital Input / Output pins (CMOS 2.8V) Input pads can only be read; they report the digital value (high or low) present on the pad at the read time.

  • Page 53: Using A Gpio As Input

    In order to avoid a back powering effect it is recommended to avoid having any HIGH logic level signal applied to the digital pins of the GE310-GNSS when the module is powered off or during a reboot transition. The VAUX pin can be used for input pull up reference or/and for ON monitoring.

  • Page 54: Using A Gpio As Output

    The S_LED pin status shows information on the network service availability and Call status. In the GE310-GNSS modules, the SLED 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.

  • Page 55: External Sim Holder

    GE310-GNSS Hardware Design Guide A schematic example could be: External SIM Holder Please refer to the related User Guide (SIM Holder Design Guides, 80000NT10001a). 1VV0301564 Rev. 5 Page 55 of 89 2019-01-23...

  • Page 56: Gsm Rf Section

    The antenna and antenna transmission line on PCB for a Telit GE310-GNSS device shall fulfil the following requirements:...

  • Page 57: Pcb Design Guidelines

    GE310-GNSS antenna pad by means of a transmission line implemented on the PCB. In the case the antenna is not directly connected at the antenna pad of the GE310-GNSS, then a PCB line is needed in order to connect with it or with its connector.

  • Page 58: Transmission Line Design

    GE310-GNSS Hardware Design Guide • If you don’t have EM noisy devices around the PCB of GE310-GNSS, by using a micro strip on the superficial copper layer for the antenna line, the line attenuation will be lower than a buried one;...

  • Page 59: Transmission Line Measurements

    GE310-GNSS Hardware Design Guide 6.1.2.2. Transmission Line Measurements An HP8753E VNA (Full-2-port calibration) has been used in this measurement session. A calibrated coaxial cable has been soldered at the pad corresponding to RF output; a SMA connector has been soldered to the board in order to characterize the losses of the transmission line including the connector itself.

  • Page 60: Antenna Installation Guidelines

    GE310-GNSS Hardware Design Guide Insertion Loss of G-CPW line plus SMA connector is shown below: 6.1.2.3. Antenna Installation Guidelines • Install the antenna in a place covered by the GSM signal. • The Antenna must be installed to provide a separation distance of at least 20 cm from all persons and must not be co-located or operating in conjunction with any other antenna or transmitter;...

  • Page 61: Gnss Receiver Section

    GE310-GNSS Hardware Design Guide 7. GNSS RECEIVER SECTION The GE310-GNSS module is provided by a GNSS receiver. The GNSS receiver could be used as a stand alone device or as a hosted device for the GSM/GPRS transceiver. Signals Description The Signals are available on the following Pads:...

  • Page 62: Gnss Hosted Configuration

    GE310-GNSS Hardware Design Guide GNSS Hosted configuration This is the typical configuration for the GE310 where the GSM section is controlling the GNSS receiver. The GPIO #6 (IO6) is used to control the GNSS Power ON pin (GNSS_ON), the secondary serial port is used to manage the communication with the GNSS receiver and to perform its SW upgrade.

  • Page 63: Gnss Stand Alone Configuration

    7.5.1. RF Signal Requirements The GE310-GNSS can achieve Cold Start acquisition with a signal level of -148 dBm at its input. This means the GE310 can find the necessary satellites, download the necessary ephemeris data and compute the location within a 5 minute period.
  • Page 64 IS-GNSS-200E, and the signal level typically goes higher as the satellites have higher elevation angles. The GE310-GNSS will display a reported C/No of 40 dB-Hz for a signal level of -130 dBm at the RF input. Each GNSS satellite presents its own signal to the GE310, and best performance is obtained when the signal levels are between -130dbm and -125dBm.

  • Page 65: Gps Antenna Polarization

    GE310-GNSS Hardware Design Guide 7.5.2. GPS Antenna Polarization The GPS signal as broadcast is a right hand circularly polarized signal. The best antenna to receive the GPS signal is a right hand circularly (RHCP) polarized antenna. Remember that IS-GPS-200E specifies the receive power level with a linearly polarized antenna.

  • Page 66: System Noise Floor

    7.5.5. Active versus Passive Antenna If the GNSS antenna is placed near the GE310-GNSS and the RF trace losses are not excessive (nominally 1 dB), then a passive antenna can be used. This would normally be the lowest cost option and most of the time the simplest to use. However, if the antenna needs to be located away from the GE310 then an active antenna may be required to obtain the best system performance.

  • Page 67: Rf Trace Losses

    7.5.9. External LNA Gain and Noise Figure The GE310-GNSS can be used with an external LNA such as what might be found in an active antenna. Because of the internal LNA, the overall gain (including signal losses past the external LNA) should not exceed 14 dB. Levels higher than that can affect the jamming detection capability of the module.

  • Page 68: Powering The External Lna

    GE310-GNSS Hardware Design Guide The external LNA, if having no pre-select filter, needs to be able to handle signals other than the GNSS signal. These signals are typically at much higher levels. The amplifier needs to stay in the linear region when presented with these other signals. Again, the system designer needs to determine all of the unintended signals and their possible levels that can be presented making sure the external LNA will not be driven into compression.

  • Page 69: External Lna Enable

    GE310-GNSS Hardware Design Guide 7.5.11. External LNA Enable The GE310 is requiring an external LNA depending on the application. The module is provided by a digital line usable to enable the power supply of the external amplifier. The signal is set to High only when the GPS receiver is active.

  • Page 70: Bluetooth Section

    GE310-GNSS Hardware Design Guide 8. BLUETOOTH SECTION The GE310-GNSS Module is including a Bluetooth transceiver that requires only a minimum set of components to interface the external antenna. The high sensitivity and class 1 output power ensure the connection with a wide range of Bluetoooth devices.

  • Page 71: Serial Port Profile (Spp)

    When using the GE310-GNSS, since there’s no connector on the module, the antenna must be connected to the GE310-GNSS RF pad (A15) by a line implemented on the PCB. In the case the antenna is not directly connected at the BT antenna pad of the GE310- GNSS, then a PCB line is needed in order to connect with it or with its connector.

  • Page 72: External Antenna

    PCB and surround it with Ground planes, or shield it with a metal frame cover. • If you don’t have EM noisy devices around the PCB of GE310-GNSS, by using a micro strip on the superficial copper layer for the antenna line, the line attenuation will be lower than a buried one;...

  • Page 73: Bluetooth Power Consumption

    GE310-GNSS Hardware Design Guide 8.3.4. Bluetooth Power Consumption Item Configuration Value (mA) BT Interval = 2.56s BT without Connect 2G Standby (PG9, BA1) BT Interval = 1.28s BT Connect and Idle 2G Standby (PG9, BA1) GSM 900 PLC19 BT Voice Active without PA 1VV0301564 Rev.

  • Page 74: Audio Section

    GE310-GNSS Hardware Design Guide 9. AUDIO SECTION The GE310-GNSS module is proving one Analog Audio section Analog Audio 9.1.1. Signals Description The GE310-GNSS is provided by one Analog Audio section. The Signals are available on the following Pads: Signal Function...

  • Page 75: Mechanical Design

    GE310-GNSS Hardware Design Guide MECHANICAL DESIGN NOTE: The dimensions are in mm 1VV0301564 Rev. 5 Page 75 of 89 2019-01-23...

  • Page 76: Application Pcb Design

    SMT process. Units: mm In order to easily rework the GE310-GNSS 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.

  • Page 77: Pcb Pad Design

    GE310-GNSS Hardware Design Guide PCB pad design Non solder mask defined (NSMD) type is recommended for the solder pads on the PCB. Copper Pad Solder Mask NSMD (Solder Mask Defined) (Non Solder Mask Defined) PCB pads 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.

  • Page 78: Stencil

    GE310-GNSS Hardware Design Guide Stencil Stencil’s apertures layout can be the same of the footprint (1:1), we suggest a thickness of stencil foil ≥ 120 µm. Solder paste Item Lead Free Solder Paste Sn/Ag/Cu We recommend using only “no clean” solder paste in order to avoid the cleaning of the modules after assembly.
  • Page 79 Time 25°C to Peak Temperature 8 minutes max. NOTE: All temperatures refer to topside of the package, measured on the package body surface WARNING: THE GE310-GNSS MODULE WITHSTANDS ONE REFLOW PROCESS ONLY. 1VV0301564 Rev. 5 Page 79 of 89 2019-01-23...

  • Page 80: Packaging

    GE310-GNSS Hardware Design Guide PACKAGING Tray The GE310-GNSS modules are packaged on trays. These trays can be used in SMT processes for pick & place handling. 1VV0301564 Rev. 5 Page 80 of 89 2019-01-23...
  • Page 81 GE310-GNSS Hardware Design Guide 1VV0301564 Rev. 5 Page 81 of 89 2019-01-23...

  • Page 82: Moisture Sensitivity

    GE310-GNSS Hardware Design Guide Moisture sensitivity The GE310-GNSS is a Moisture Sensitive Device level 3, in according with standard IPC/JEDEC J-STD-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...

  • Page 83: Conformity Assessment Issues

    GE310-GNSS Hardware Design Guide CONFORMITY ASSESSMENT ISSUES Approvals    RoHS and REACH Declaration of Conformity The DoC is available here: https://www.telit.com/RED/ 1VV0301564 Rev. 5 Page 83 of 89 2019-01-23...

  • Page 84: Safety Recommendations

    GE310-GNSS Hardware Design Guide SAFETY RECOMMENDATIONS READ CAREFULLY Be sure the use of this product is allowed in the country and in the environment required. The use of this product may be dangerous and has to be avoided in the following areas: •...

  • Page 85: Reference Table Of Rf Bands Characteristics

    GE310-GNSS Hardware Design Guide REFERENCE TABLE OF RF BANDS CHARACTERISTICS Mode Freq. Tx Freq. Rx Channels Tx-Rx Offset (MHz) (MHz) PCS 1900 1850.2 ~ 1909.8 1930.2 ~ 1989.8 512 ~ 810 80 MHz DCS 1800 1710 ~ 1785 1805 ~ 1880...

  • Page 86: Acronyms

    GE310-GNSS Hardware Design Guide ACRONYMS TTSC Telit Technical Support Centre Universal Serial Bus High Speed Data Terminal Equipment UMTS Universal Mobile Telecommunication System WCDMA Wideband Code Division Multiple Access HSDPA High Speed Downlink Packet Access HSUPA High Speed Uplink Packet Access...
  • Page 87 GE310-GNSS Hardware Design Guide Master Input – Slave Output MISO Clock MRDY Master Ready SRDY Slave Ready Chip Select Real Time Clock Printed Circuit Board Equivalent Series Resistance VSWR Voltage Standing Wave Radio Vector Network Analyzer 1VV0301564 Rev. 5 Page 87 of 89...

  • Page 88: Document History

    GE310-GNSS Hardware Design Guide DOCUMENT HISTORY Revision Date Changes First emission – Preliminary 2018-10-01 2018-10-30 Updated BT section Added Power consumption values 2018-11-19 Updated Chapters 11 amd 12 Updatwd table in Chapter 3.1 2018-11-27 Updated Chapter 4.3.2.1, 4.3.4, 4.5, 5.3, 5.4.2, 5.5.1.2, 5.5.1.4...
  • Page 89 Mod.0818 2017-01 Rev.0...

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