Telit Wireless Solutions SL869T3-I Product User Manual
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Telit Wireless Solutions SL869T3-I Product User Manual

Telit Wireless Solutions SL869T3-I Product User Manual

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SL869T3-I
Product User Guide
1VV0301546
r0
2019-01-10

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Summary of Contents for Telit Wireless Solutions SL869T3-I

  • Page 1 SL869T3-I Product User Guide 1VV0301546 2019-01-10...

  • Page 2: Notices

    SL869T3-I Product User Guide Notices SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE NOTICES While reasonable eff orts hav e been made to assure the accuracy of this document, Telit assumes no liability resulting f rom any inaccuracies or omissions in this document, or f rom use of the inf ormation obtained herein.
  • Page 3 SL869T3-I Product User Guide Notices USAGE AND DISCLOSURE RESTRICTIONS License Agreements The software described in this document is the property of Telit and its licensors. It is f urnished by express license agreement only and may be used only in accordance with the terms of such an agreement.

  • Page 4: Product Applicability Table

    SL869T3-I Product User Guide Product Applicability Table PRODUCT APPLICABILITY TABLE Product SL869T3-I Table 0-1 Product Applicability Table 1VV0301546 r0 Page 4 of 57 2019-01-10...

  • Page 5: Table Of Contents

    SL869T3-I Product User Guide Contents CONTENTS NOTICES ......................2 PRODUCT APPLIC ABILITY TABLE ................4 CONTENTS ......................5 INTRODUCTION .................... 10 Purpose ....................10 Contact and Support Inf ormation ..............10 Related Documents ..................10 Related Documents requiring a Non-Disclosure Agreement ........ 10 Related Products ..................
  • Page 6 NMEA Input Commands................22 FL ASH UPGR AD ABILITY ................23 ELECTRIC AL INTERF ACE ................24 SL869T3-I Pin-out Diagram................24 SL869T3-I Pin-out Table ................25 DC Characteristics..................26 Absolute Maximum Ratings................26 Power Supply ..................... 27 VCC ..................... 27 VBATT ....................
  • Page 7 Powering an External LNA (activ e antenna) ............36 REFERENCE DESIGNS ................... 37 SL869T3-I Ref erence Design ................. 37 SL869T3-I ref erence design with Antenna enable & antenna sense ......38 MECH ANIC AL DR AWING ................39 PCB FOOTPRINT ................... 40 PRODUCT PACK AGING AND H ANDLING ............
  • Page 8 Figure 9-1 RF Trace Examples................... 35 Figure 10-1 SL869T3-I Ref erence Design ..............37 Figure 10-2 SL869T3-I Ref erence Design with Antenna enable & antenna sense ....38 Figure 11-1 SL869T3-I Mechanical Drawing ..............39 Figure 11-2 3-D Mechanical Drawing ................39 Figure 12-1 SL869T3-I PCB Footprint ................
  • Page 9 Table 0-1 Product Applicability Table ................4 Table 5-1 SL869T3-I Horizontal Position Accuracy ............19 Table 5-2 SL869T3-I Time To First Fix ................. 19 Table 5-3 SL869T3-I Sensitiv ity .................. 20 Table 6-1 Def ault NMEA Output Messages ..............21 Table 6-2 Av ailable Messages ...................

  • Page 10: Introduction

    Introduction INTRODUCTION Purpose The purpose of this document is to prov ide product inf ormation f or the SL869T3-I module. See Table 0-1 Product Applicability Table. Contact and Support Information For general contact, technical support services, technical questions and report documentation errors contact Telit Technical Support at: •...

  • Page 11: Text Conventions

    SL869T3-I Product User Guide Introduction Text Conventions • Dates are in ISO 8601 f ormat, i.e. YYYY-MM-DD. Symbol Description Danger – This inf ormation MUST be f ollowed or catastrophic equipment f ailure and/or bodily injury may occur. Caution or Warning – This is an important point about integrating the product into a sy stem.

  • Page 12: Product Description

    PRODUCT DESCRIPTION The SL869T3-I is a 12.2mm x 16.0 mm x 2.55 mm f ully integrated GNSS module which receiv es GPS (L1) and Nav IC (L5) signals. It is based on the ST Micro Teseo III GNSS engine with an ARM-9 core processor, f lash memory , TC XO, RTC cry stal, LNA and SAW f ilter.

  • Page 13: Block Diagram

    SL869T3-I Product User Guide Product Description Block Diagram Figure 2-1 SL869T3-I Block Diagram 1VV0301546 r0 Page 13 of 57 2019-01-10...

  • Page 14: Module Photo

    SL869T3-I Product User Guide Product Description Module Photo Figure 2-2 SL869T3-I Module Photo 1VV0301546 r0 Page 14 of 57 2019-01-10...

  • Page 15: Evaluation Kit (Evk)

    SL869T3-I Product User Guide Ev aluation Kit (EVK) EVALUATION KIT (EVK) The Ev aluation Kit (EVK) contains the necessary items to assist the customer in ev aluating the module f or inclusion in a design. Figure 3-1 Evaluation Board (EVB) contents...

  • Page 16: Product Features

    SL869T3-I Product User Guide Product Features PRODUCT FEATURES GPS (L1 C/A) and NavIC (L5) Navigation GPS and Nav IC (f ormerly IRNSS) constellations are enabled by def ault. Satellite Based Augmentation System (SBAS) The receiv er is capable of using SBAS (GAGAN) satellites as a source of diff erential corrections.

  • Page 17: Static Navigation

    SL869T3-I Product User Guide Product Features Serv er-based AGPS is supported as a standard f eature. An Application Note and example source code are av ailable under NDA. Contact TELIT f or support regarding this serv ice. Static Navigation Static Nav igation is an operating mode in which the receiv er will f reeze the position f ix when the speed f alls below a set threshold (indicating that the receiv er is stationary ).
  • Page 18 SL869T3-I Product User Guide Product Features The I C port is not assigned an I/O f unction by default. 1VV0301546 r0 Page 18 of 57 2019-01-10...

  • Page 19: Product Performance

    Time to First Fix Time to First Fix Constellations(s) Start Type Typical TTFF (seconds) Warm Cold Nav IC Warm Cold Test Conditions: Static scenario, -130 dBm, Full Power mode Table 5-2 SL869T3-I Time To First Fix 1VV0301546 r0 Page 19 of 57 2019-01-10...

  • Page 20: Sensitivity

    Product Perf ormance Sensitivity Minimum Signal Constellation(s) State Level (dBm) Acquisition -145 (target) GPS+Nav IC Tracking -161 Acquisition -140 (target) Nav IC Tracking -159 Test Conditions: Static Scenario, Full Power mode Table 5-3 SL869T3-I Sensitivity 1VV0301546 r0 Page 20 of 57 2019-01-10...

  • Page 21: Message Interface

    SL869T3-I Product User Guide Message Interf ace MESSAGE INTERFACE The primary UART port (TX/R X) supports f ull duplex communication between the receiv er and the user. Its def ault f unction is NMEA output data and input commands. The def ault UART conf iguration is: 9600 bps, 8 data bits, no parity , and 1 stop bit.

  • Page 22: Proprietary Messages

    SL869T3-I Product User Guide Message Interf ace Talker ID Constellation Nav IC (was IRNSS) Solutions using multiple constellations Table 6-3 NMEA Talker IDs Proprietary Messages The receiv er can issue sev eral proprietary NMEA output messages ($PSTM) which report additional receiv er data and status inf ormation.

  • Page 23: Flash Upgradability

    SL869T3-I Product User Guide FLASH UPGRADABILITY FLASH UPGRADABILITY The f irmware stored in the internal f lash memory of the module may be upgraded v ia the main serial port (TX/R X). During normal operation, the BOOT pin should be left f loating. This will ensure that the module executes code f rom its internal f lash memory .

  • Page 24: Electrical Interface

    SL869T3-I Product User Guide Electrical Interf ace ELECTRICAL INTERFACE SL869T3-I Pin-out Diagram Figure 8-1 SL869T3-I Pin-out Diagram 1VV0301546 r0 Page 24 of 57 2019-01-10...

  • Page 25: Sl869T3-I Pin-Out Table

    Main 3.3 V Supply Voltage Ground Note: All GND pins must be connected to ground Pins 3, 14, and 20 must be LOW when power is applied (f or normal operation) Table 8-1 SL869T3-I Pin-out Table 1VV0301546 r0 Page 25 of 57 2019-01-10...

  • Page 26: Dc Characteristics

    SL869T3-I Product User Guide Electrical Interf ace DC Characteristics Signal Description Ty p Units Low lev el output v oltage, I High lev el output v oltage, I 0.75*V Low lev el input v oltage -0.3 0.45 High lev el input v oltage, I 0.7*V...

  • Page 27: Power Supply

    SL869T3-I Product User Guide Electrical Interf ace Power Supply The module has two power supply pins VCC and VBATT. This is the primary 3.3V power supply f or the module. The module includes a switching v oltage regulator that supplies the required v oltage to the GNSS dev ice and other internal items.

  • Page 28: Dc Power Requirements

    SL869T3-I Product User Guide Electrical Interf ace DC Power Requirements Name Units VBATT Table 8-4 DC Supply Voltage DC Power Consumption State & Constellation Units Acquisition GPS Only Nav IC only GPS + Nav IC Navigation/Tracking GPS Only Nav IC only...

  • Page 29: Control And Status Signals

    SL869T3-I Product User Guide Electrical Interf ace Control and Status signals Startup Requirements For normal startup, pins 3, 14, and 20 must be LOW. They have internal pulldowns. nRESET Asserting nRESET (pull low f or 5 ms or more, then release) will clear the contents of SRAM and RTC.

  • Page 30: I/O Port Operation

    SL869T3-I Product User Guide Electrical Interf ace I/O Port Operation UART Port Operation The module prov ides three f ull-duplex UART ports which implement a standard asy nchronous 8-bit interf ace with conf igurable data rates. The signal input and output lev els are LVTTL compatible.

  • Page 31: Rf Interface

    SL869T3-I Product User Guide Electrical Interf ace RF interface RF IN The RF input (RF-IN) pin accepts GNSS L1 band signals f rom the GPS and GAGAN constellations and NavIC L5 band signals. Ω Signal lev el should be between -125 dBm and -165 dBm into 50 impedance.

  • Page 32: Rf Front End Design

    The NavIC signal is def ined by ISRO-IRNSS-ICD-SPS-1.1 dated August 2017. This document describes the Nav IC constellation and its signal structure. The SL869T3-I receiv es and processes the Nav IC L5 signal.

  • Page 33: Gnss Antenna Polarization

    SL869T3-I Product User Guide RF Front End Design For example, in a v ehicular application, the GNSS antenna may be placed on the dashboard or rear package tray of an automobile. The metal roof of the v ehicle will cause signif icant blockage, plus any thermal coating applied to the v ehicle glass can attenuate the GNSS signal by as much as 15 dB.

  • Page 34: Gnss Antenna Gain

    SL869T3-I Product User Guide RF Front End Design GNSS Antenna Gain Antenna gain is def ined as the amplif ied signal power f rom the antenna compared to a theoretical isotropic antenna (equally sensitiv e in all directions). Optimum perf ormance is realized when the f irmware build and hardware conf iguration match the ty pe of antenna used (activ e or passiv e).

  • Page 35: Pcb Stack And Trace Impedance

    SL869T3-I Product User Guide RF Front End Design PCB stack and Trace Impedance It is important to maintain a 50 Ω impedance on the RF path trace. Design software f or calculating trace impedance can be f ound f rom multiple sources on the internet. The best method is to contact your PCB supplier and request a stackup f or a 50 Ω...

  • Page 36: Shielding

    SL869T3-I Product User Guide RF Front End Design Shielding Shielding the RF circuitry generally is ineffectiv e because the interf erence is receiv ed by the GNSS antenna itself (which is the most sensitiv e portion of the RF path). The antenna cannot be shielded because it could not then receiv e the GNSS signals.

  • Page 37: Reference Designs

    Ref erence Designs REFERENCE DESIGNS SL869T3-I Reference Design Figure 10-1 SL869T3-I Reference Design Along with power and ground, the minimum signals required to operate the module properly are described below. The power supply must hav e tight v oltage regulation under v ary ing line and load conditions to prev ent f alsely tripping the internal v oltage superv isor within the module.

  • Page 38: Sl869T3-I Reference Design With Antenna Enable & Antenna Sense

    This circuit assumes an antenna supply v oltage of 3.3 V and a f ixed current draw. Figure 10-2 SL869T3-I Reference Design with Antenna enable & antenna sense The abov e schematic uses the Antenna Sense circuit to control the supply v oltage to the antenna. If its status is NORMAL, the supply is enabled.

  • Page 39: Mechanical Drawing

    SL869T3-I Product User Guide Mechanical Drawing MECHANICAL DRAWING Figure 11-1 SL869T3-I Mechanical Drawing Figure 11-2 3-D Mechanical Drawing 1VV0301546 r0 Page 39 of 57 2019-01-10...

  • Page 40: Pcb Footprint

    SL869T3-I Product User Guide PCB Footprint PCB FOOTPRINT Figure 12-1 SL869T3-I PCB Footprint The module uses adv anced packaging with a base metal of copper and an Electroless Nickel Immersion Gold (ENIG) f inish. 1VV0301546 r0 Page 40 of 57...

  • Page 41: Product Packaging And Handling

    SL869T3-I Product User Guide Product Packaging and Handling PRODUCT PACKAGING AND HANDLING Product Marking and Serialization The module label has a 2D Barcode identify ing the module and its serial number. Contact a Telit representativ e f or inf ormation on specif ic module serial numbers.

  • Page 42: Product Packaging

    SL869T3-I Product User Guide Product Packaging and Handling Product Packaging Modules are shipped in Tape and Reel f orm on 24 mm reels with 1000 units per reel or Tray s with 72 units. Each reel or tray is ‘dry ’ packaged and vacuum sealed in a Moisture Barrier Bag (MBB) with two silica gel packs and a humidity indicator card, which is then placed in a carton.

  • Page 43: Figure 13-4 Tray Packaging

    SL869T3-I Product User Guide Product Packaging and Handling Figure 13-4 Tray Packaging 1VV0301546 r0 Page 43 of 57 2019-01-10...

  • Page 44: Moisture Sensitivity

    SL869T3-I Product User Guide Product Packaging and Handling Moisture Sensitivity Precautionary measures are required in handling, storing and using these dev ices to av oid damage from moisture absorption. If localized heating is required to rework or repair the dev ice, precautionary methods are required to av oid exposure to solder ref low temperatures that can result in perf ormance degradation.

  • Page 45: Figure 13-5 Moisture-Sensitive Device Label

    SL869T3-I Product User Guide Product Packaging and Handling Figure 13-5 Moisture-Sensitive Device Label 1VV0301546 r0 Page 45 of 57 2019-01-10...

  • Page 46: Esd Sensitivity

    SL869T3-I Product User Guide Product Packaging and Handling ESD Sensitivity The module contains class 1 dev ices and is classif ied as Electro-Static Discharge Sensitiv e (ESDS). Telit recommends the two basic principles of protecting ESD dev ices f rom damage: •...

  • Page 47: Safety

    SL869T3-I Product User Guide Product Packaging and Handling Safety Improper handling and use of this module can cause permanent damage to it. There is also the possible risk of personal injury f rom mechanical trauma or choking hazard. See Section 17 Safety Recommendations f or saf ety inf ormation.

  • Page 48: Environmental Requirements

    SL869T3-I Product User Guide Env ironmental Requirements ENVIRONMENTAL REQUIREMENTS Operating Environmental Limits Operating Limits Temperature -20°C to +85°C Temperature ±1°C / minute maximum Rate of Change Up to 95% non-condensing or a wet bulb temperature of +35°C, Humidity whichev er is less...

  • Page 49: Compliances

    SL869T3-I Product User Guide Compliances COMPLIANCES ISO 9000 Accredited Manuf actured in an ISO 9000: 2008 accredited f acility RoHS Compliance Manuf actured in compliance with Directiv e 2011/65/EU art. 16 on the restriction of the use of certain hazardous substances in electrical and electronic equipment (RoHS)

  • Page 50: Glossary And Acronyms

    SL869T3-I Product User Guide Glossary and Acrony ms GLOSSARY AND ACRONYMS Assisted (or Aided) GPS AGPS prov ides ephemeris data to the receiv er to allow f aster cold start times than would be possible using only broadcast data. AGPS This extended ephemeris data could be either server-generated or locally - generated.

  • Page 51: 1Vv0301546 R0

    SL869T3-I Product User Guide Glossary and Acrony ms Geometric Dilution of Precision A f actor used to describe the eff ect of satellite geometry on the accuracy GDOP of the time and position solution of a GNSS receiv er. A lower v alue of GDOP indicates a smaller error in the solution.

  • Page 52: 1Vv0301546 R0

    SL869T3-I Product User Guide Glossary and Acrony ms Multif unctional Transport Satellites MTSAT The Japanese sy stem of geosy nchronous satellites used f or weather and av iation control. Nav igation with Indian Constellation. Nav IC The Indian regional sy stem. Formerly called IRNSS.

  • Page 53: 1Vv0301546 R0

    SL869T3-I Product User Guide Glossary and Acrony ms Satellite Based Augmentation Sy stem A system that uses a network of ground stations and geostationary satellites to prov ide differential corrections to GNSS receiv ers. These SBAS corrections are transmitted on the same f requency as nav igation signals, so the receiv er can use the same f ront-end design to process them.

  • Page 54: Safety Recommendations

    SL869T3-I Product User Guide Saf ety Recommendations SAFETY RECOMMENDATIONS READ CAREFULLY Be sure that the use of this product is allowed in the country and in the env ironment required. The use of this product may be dangerous and must be av oided in the f ollowing areas: •...

  • Page 55: Electrical And Fire Safety

    SL869T3-I Product User Guide Saf ety Recommendations Electrical and Fire Safety This dev ice is intended f or built-in designs and must be installed by users that hav e taken adequate precautions and hav e sufficient knowledge to av oid electrical, mechanical and f ire hazards.

  • Page 56: Document History

    SL869T3-I Product User Guide Document History DOCUMENT HISTORY Revision Date Changes Draft Remov ed ref erences to GLONASS 2018-08-21 Added preliminary perf ormance data Added section: Antenna Selection Draft 2018-10-19 Updated f or NavIC-specif ic f eatures Added ref erence diagrams...

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