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Related Manuals for Telit Wireless Solutions SE873Q5
Summary of Contents for Telit Wireless Solutions SE873Q5
- Page 1 SE873 Family Product User Guide 1VV0301216 Rev. 4 2018-08-24...
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Page 2: Notices
SE873 Family Product User Guide Notices SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE NOTICES 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 SE873 Family 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 furnished by express license agreement only and may be used only in accordance with the terms of such an agreement.
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Page 4: Product Applicability Table
SE873 Family Product User Guide Product Applicability Table PRODUCT APPLICABILITY TABLE PRODUCT SE873 SE873Q5 Table 0-1 Product Applicability Table 1VV0301216 Page 4 of 69 2018-08-24 Rev.4... -
Page 5: Table Of Contents
SE873 Family Product User Guide Contents CONTENTS NOTICES ............................ 2 PRODUCT APPLICABILITY TABLE ..................4 CONTENTS ..........................5 INTRODUCTION ......................11 Purpose ........................11 Contact and Support Information ................. 11 Related Documents and Downloads ................11 Related Documents Requiring a Non-Disclosure Agreement Text Conventions ...................... - Page 6 SE873 Family Product User Guide Contents Serial I/O Ports ......................21 Power Management ....................22 Full Power Mode (default) SmartGNSS Trickle Power Push-to-Fix SiRFaware Hibernate PRODUCT PERFORMANCE ..................24 Horizontal Position Accuracy ..................24 Time to First Fix ......................24 Sensitivity ........................
- Page 7 SE873 Family Product User Guide Contents Primary Serial Port Configuration Secondary Serial Port Configuration UART Operation C Operation SPI Operation RF Interface ........................ 41 RF Input External Active Antenna Voltage Burnout Protection Jamming Rejection Frequency Plan Local Oscillator Leakage RF SIGNALS ........................42 RF Input ........................
- Page 8 SE873 Family Product User Guide Contents Storage Environmental Limits ..................58 COMPLIANCES ......................59 EU RED Certification ....................59 eCall Compliance ......................59 GOST R-55534 Certification ..................59 EU RED Declarations of Conformity ................60 GLOSSARY AND ACRONYMS ..................62 SAFETY RECOMMENDATIONS..................
- Page 9 Figure 13-3 Product Packaging - Tape and Reel 450 pcs ............54 Figure 13-4 Moisture Sensitive Device Label ................56 Figure 15-1 EU RED Declaration of Conformity – SE873 ............60 Figure 15-2 EU RED Declaration of Conformity – SE873Q5 .............61 1VV0301216 Page 9 of 69 2018-08-24 Rev.4...
- Page 10 Table 8-6 Power Consumption – SE873 Low Power modes .............34 Table 8-7 Power Consumption – SE873Q5 ................35 Table 8-8 Power Consumption – SE873Q5 Low Power modes ..........35 Table 8-9 Primary Serial Port Configuration ................38 Table 8-10 UART Pin Assignments ...................39 Table 8-11 I2C Pin Assignments ....................40...
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Page 11: Introduction
SE873 Family Product User Guide Introduction 1. INTRODUCTION Purpose The purpose of this document is to provide information regarding the function, features, and usage of the Telit products listed in Table 0-1 Product Applicability Table. Please refer to section 2 Product Description for details of the members of the product family. Contact and Support Information For general contact, technical support services, technical questions and report documentation errors contact Telit Technical Support at:... -
Page 12: Text Conventions
SE873 Family Product User Guide Introduction Text Conventions Dates are in ISO 8601 format, i.e. YYYY-MM-DD. Symbol Description Danger – This information MUST be followed or catastrophic equipment failure and/or bodily injury may occur. Caution or Warning – This is an important point about integrating the product into a system. -
Page 13: Product Description
C, or SPI interface o Secondary serial port: configurable for UART or I C interface • 16 Megabit built-in flash memory Less than 70 mW total power consumption (SE873Q5 Full Power mode - typical) • Supported by evaluation kits • •... -
Page 14: Block Diagram
SE873 Family Product User Guide Product Description Block Diagram Figure 2-1 SE873 Block Diagram 1VV0301216 Page 14 of 69 2018-08-24 Rev.4... -
Page 15: Se873 Modules Photos
SE873 Family Product User Guide Product Description SE873 Modules Photos Figure 2-2 SE873 module photo Figure 2-3 SE873Q5 module photo 1VV0301216 Page 15 of 69 2018-08-24 Rev.4... -
Page 16: Se873 Evaluaton Kit (Evk)
SE873 Family Product User Guide SE873 Evaluaton Kit (EVK) 3. SE873 EVALUATON KIT (EVK) Figure 3-1 Evaluation Kit (EVK) contents 1VV0301216 Page 16 of 69 2018-08-24 Rev.4... -
Page 17: Se873 Evaluation Unit
SE873 Family Product User Guide SE873 Evaluaton Kit (EVK) SE873 Evaluation Unit Figure 3-2 SE873 Evaluation unit 1VV0301216 Page 17 of 69 2018-08-24 Rev.4... -
Page 18: Product Features
SE873 Family Product User Guide Product Features 4. PRODUCT FEATURES Multi-Constellation Navigation GPS and GLONASS constellations are enabled by default. GLONASS and BeiDou cannot both be enabled at the same time. GPS, Galileo, GLONASS, and/or BDS constellations are enable/disabled via OSP command MID 222,16.. Quasi-Zenith Satellite System (QZSS) support The satellites of the Japanese regional system are in a highly inclined, elliptical geosynchronous orbit, allowing continuous high-elevation coverage over Japan and other countries using only... -
Page 19: Client-Generated Extended Ephemeris (Cgee)
SE873 Family Product User Guide Product Features 2. Server-generated (SGEE): A server calculates the future position projections and makes them available to a receiver, typically over the internet. This data may be good for 30 days, depending on available resources, e.g. communication links and storage. Both CGEE and SGEE are available for GPS and GLONASS satellites. -
Page 20: Jamming Rejection - Continuous Wave (Cw) Jamming Mitigation
SE873 Family Product User Guide Product Features Jamming Rejection – Continuous Wave (CW) Jamming Mitigation Continuous Wave (CW) jamming mitigation improves performance in a system that is affected by these predictable jamming signals: • Stable jamming signals generated by your system implementation, such as harmonics of digital clocks and logic switching Predictable jamming signals in the RF environment (e.g. -
Page 21: Internal Lna
SE873 Family Product User Guide Product Features Internal LNA The GNSS engine has an adjustable gain internal LNA which allows the receiver to compensate for the use of various external antennas. The default gain (low or high) is determined by the version of firmware installed in the module. -
Page 22: Table 4-2 Power Management Modes
SE873 Family Product User Guide Product Features Power Management The receiver features several operating modes that provide reduced power consumption. Availability of GNSS signals in the operational environment will be a factor in choosing power management modes. The designer can choose a mode that provides the best trade-off of navigation performance versus power consumption. -
Page 23: Trickle Power
SE873 Family Product User Guide Product Features 4.14.2.1. SmartGNSS I SmartGNSS I autonomously manages GNSS system usage to save power based on signal conditions. The adaptive mechanism uses fewer system resources during strong signal conditions and uses more resources during weak signal conditions in order to maintain navigation performance. Full constellation tracking is maintained while in this mode. -
Page 24: Table 5-1 Se873 Family - Horizontal Position Accuracy
SE873 Family Product User Guide Product Performance 5. PRODUCT PERFORMANCE Horizontal Position Accuracy Constellation CEP (m) BeiDou GPS + Glonass GPS + BeiDou Test Conditions: 24-hr Static, -130 dBm, Full Power mode Table 5-1 SE873 Family - Horizontal Position Accuracy Time to First Fix Constellations(s) Start Type... -
Page 25: Table 5-3 Se873 Family - Sensitivity
SE873 Family Product User Guide Product Performance Sensitivity Minimum Signal Level (dBm) Constellation(s) State SE873 SE873Q5 Acquisition -146 -147 Navigation -161 -160 -164 Tracking -165 Acquisition -146 -146 GPS + GLO Navigation -161 -161 Tracking -165 -167 Acquisition -146 -146... -
Page 26: Table 6-1 Default Nmea Output Messages
SE873 Family Product User Guide Message Interface 6. MESSAGE INTERFACE The primary serial I/O port (UART, I C, or SPI) supports full duplex communication between the receiver and the user. The default configuration is: NMEA, 9600 bps, 8 data bits, no parity, 1 stop bit. Two protocols are available for command input and data output: NMEA-0183 •... -
Page 27: Table 6-3 Nmea Talker Ids
SE873 Family Product User Guide Message Interface The following Talker IDs are used: Talker ID Constellation Galileo BeiDou GLONASS Solutions using multiple constellations Table 6-3 NMEA Talker IDs Proprietary Messages The receiver can issue several proprietary NMEA output messages ($PSRF) which report additional receiver data and status information. -
Page 28: Osp Output Messages
SE873 Family Product User Guide Message Interface OSP Output Messages Please refer to SiRF OSP documentation. OSP Input Commands Change output messages Use OSP MID 166 to change the output messages. Change data rate Use OSP MID 134 to change the baud rate Switch to NMEA protocol and data rate Use the OSP MID 129 command to switch to the NMEA protocol and change the port data rate. -
Page 29: Flash Upgradability
SE873 Family Product User Guide Flash Upgradability 7. FLASH UPGRADABILITY The firmware stored in the internal Flash memory of the SE873 may be upgraded via the serial port TX/RX pads. Please refer to the SE873 Evaluation Kit User Guide to update the firmware 1VV0301216 Page 29 of 69 2018-08-24... -
Page 30: Figure 8-1 Se873 Pin-Out Diagram
SE873 Family Product User Guide Electrical Interface 8. ELECTRICAL INTERFACE Module Pin-out Figure 8-1 SE873 Pin-out Diagram 1VV0301216 Page 30 of 69 2018-08-24 Rev.4... -
Page 31: Table 8-1 Se873 Pin-Out Function Table
SE873 Family Product User Guide Electrical Interface Name Type Function Power 3, 19 Connect all pins to 1.8 V supply. See section 8.2 Power Supply. Ground 2, 10, Connect all pins to ground. RF Input RF_IN Control Input ON-OFF On/Off. See section 8.3.1 ON-OFF (input) and SYSTEM-ON (output) Reset (active low). -
Page 32: Table 8-2 Dc Characteristics
SE873 Family Product User Guide Electrical Interface DC Characteristics Unit Signal Description Low level output voltage, I High level output voltage, I 0.75 * V Low level input voltage -0.3 0.45 High level input voltage, I 0.7 * V kΩ Internal pull-up resistor equivalent kΩ... -
Page 33: Table 8-4 Dc Supply Voltage
SE873 Family Product User Guide Electrical Interface Power Supply 1.8 V Supply Voltage Unlike previous GNSS receiver modules, the SE873 requires a single always-on 1.8 V supply. Rather than having a “split” power supply design of main and backup, the module manages all of its power modes internally. -
Page 34: Table 8-5 Power Consumption - Se873
SE873 Family Product User Guide Electrical Interface DC Power Consumption Power Mode -> Smart 1 Full Power State & Constellation Units Acquisition GPS only GPS and Glonass GPS and BeiDou Navigation/Tracking GPS Only GPS and Glonass GPS and BeiDou Table 8-5 Power Consumption – SE873 Low Power Modes State &... -
Page 35: Table 8-7 Power Consumption - Se873Q5
GPS and BeiDou Trickle Power mode: On 100 ms, Max Off 30 s Push To Fix mode: Max Search: 6 s, Max Off: 120 s Table 8-8 Power Consumption – SE873Q5 Low Power modes 1VV0301216 Page 35 of 69 2018-08-24... -
Page 36: Control (Input) Signals
SE873 Family Product User Guide Electrical Interface Control (input) SIgnals ON-OFF (input) and SYSTEM-ON (output) The SE873 module has three power states: OFF, RESET, and ON. The OFF state is when power is removed from the module. Upon initial application of power, the module enters the RESET state until the internal reset process is completed. -
Page 37: Boot Select
SE873 Family Product User Guide Electrical Interface Boot Select It is not necessary to use the Boot Select pin to re-flash the receiver since SiRFlive can use commands to perform this task. This pin should be left floating or may be brought out to a test point. -
Page 38: Primary Serial Port Configuration
SE873 Family Product User Guide Electrical Interface Serial I/O Ports - Configuration and Operation The receiver module includes two full-duplex serial ports which are configurable for the desired interface. Primary Serial Port Configuration The primary port is configured for UART, I C or SPI interface via reading GPIO6 and GPIO7 pins at startup or reset (only). -
Page 39: Uart Operation
SE873 Family Product User Guide Electrical Interface UART Operation See section 8.5.1 Primary Serial Port Configuration to specify UART interface for the primary port.. The secondary port is configured by loading the appropriate FW. Default: NMEA at 9600 bps, 8-bit, No parity, and 1 stop bit. Upon power up, the module will communicate using a standard asynchronous 8 bit protocol with output messages appearing on the TX line and input commands and data being received on the RX line. -
Page 40: I 2 C Operation
SE873 Family Product User Guide Electrical Interface C Operation See section 8.5.1 Primary Serial Port Configuration to specify I C interface for the primary port.. The secondary port is configured by loading the appropriate FW. Upon power up, the module acts as a master transmitter and a slave receiver (multi-master mode). -
Page 41: Rf Interface
SE873 Family Product User Guide Electrical Interface RF Interface RF Input The RF input (RF-IN) pin accepts GNSS signals in the range of 1561 MHz to 1606 MHz at a level between -125 dBm and -165 dBm into 50 Ohm impedance. A maximum of 3 V DC can be applied to the RF input. -
Page 42: Rf Signals
SE873 Family Product User Guide RF Signals 9. RF SIGNALS RF Input The receiver can achieve Cold Start acquisition with a signal level above the specified minimum at its input. This means that it can acquire and track visible satellites, download the necessary ephemeris data and compute the location within a 5 minute period. -
Page 43: Gnss Antenna Polarization
SE873 Family Product User Guide RF Signals For example, in a vehicular application, the GNSS antenna may be placed on the dashboard or rear package tray of an automobile. The metal roof of the vehicle will cause significant blockage, plus any thermal coating applied to the vehicle glass can attenuate the GNSS signal by as much as 15 dB. -
Page 44: System Noise Floor
SE873 Family Product User Guide RF Signals An antenna vendor should specify a nominal antenna gain (usually at zenith, or directly overhead) and antenna pattern curves specifying gain as a function of elevation, and gain at a fixed elevation as a function of azimuth. Pay careful attention to the requirement to meet the required design, such as ground plane size and any external matching components. -
Page 45: Rf Trace Losses
SE873 Family Product User Guide RF Signals RF Trace Losses RF Trace losses on a PCB are difficult to estimate without having appropriate tables or RF simulation software. A good rule of thumb would be to keep the RF traces as short as possible, make sure they are 50 ohm impedance, and don’t contain any sharp bends. -
Page 46: Shielding
SE873 Family Product User Guide RF Signals The most common source of interference is digital noise, often created by the fast rise and fall times and high clock speeds of modern digital circuitry. For example, a popular netbook computer uses an Atom processor clocked at 1.6 GHz. This is only 25 MHz away from the GNSS signal, and depending upon temperature of the SAW filter, can be within its passband. -
Page 47: Reference Designs
SE873 Family Product User Guide Reference Designs 10. REFERENCE DESIGNS Note: XC6221 is the DC voltage supply regulator Figure 10-1 SE873 Reference Design – Passive Antenna 1VV0301216 Page 47 of 69 2018-08-24 Rev.4... -
Page 48: Figure 10-2 Se873 Reference Design - Active Antenna
SE873 Family Product User Guide Reference Designs Note: XC6221 is the DC voltage supply regulator Figure 10-2 SE873 Reference Design – Active Antenna See notes on the next page. 1VV0301216 Page 48 of 69 2018-08-24 Rev.4... - Page 49 SE873 Family Product User Guide Reference Designs Along with power and ground, the minimum signals required to operate the module properly are: one RF input and four digital lines. The RF input can be connected directly to a passive GNSS antenna. C5 is used to block DC voltage from entering the module.
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Page 50: Mechanical Drawing
SE873 Family Product User Guide Mechanical Drawing 11. MECHANICAL DRAWING Figure 11-1 SE873 Family Mechanical Drawing 1VV0301216 Page 50 of 69 2018-08-24 Rev.4... -
Page 51: Pcb Footprint
SE873 Family Product User Guide PCB Footprint 12. PCB FOOTPRINT Figure 12-1 SE873 Family PCB Footprint 1VV0301216 Page 51 of 69 2018-08-24 Rev.4... -
Page 52: Product Packaging And Handling
Module Name Product Variant (if any) Barcode type 2D Datamatrix and text of Telit Serial Number 11 digit (base 36 - 0 to 9 followed by A to Z) Table 13-1 SE873Q5 Product Label Description 1VV0301216 Page 52 of 69 2018-08-24... -
Page 53: Product Packaging And Delivery
SE873 Family Product User Guide Product Packaging and Handling Product Packaging and Delivery SE873 modules are available in Tape and Reel packaging of 450 pcs or 1500 pcs. Each reel is ‘dry’ packaged and vacuum sealed in a Moisture Barrier Bag (MBB) with two silica gel packs and placed in a carton. -
Page 54: Figure 13-3 Product Packaging - Tape And Reel 450 Pcs
SE873 Family Product User Guide Product Packaging and Handling Figure 13-3 Product Packaging - Tape and Reel 450 pcs 1VV0301216 Page 54 of 69 2018-08-24 Rev.4... -
Page 55: Moisture Sensitivity
SE873 Family Product User Guide Product Packaging and Handling Moisture Sensitivity Precautionary measures are required in handling, storing and using these devices to avoid damage from moisture absorption. If localized heating is required to rework or repair the device, precautionary methods are required to avoid exposure to solder reflow temperatures that can result in performance degradation. -
Page 56: Figure 13-4 Moisture Sensitive Device Label
SE873 Family Product User Guide Product Packaging and Handling Figure 13-4 Moisture Sensitive Device Label 1VV0301216 Page 56 of 69 2018-08-24 Rev.4... -
Page 57: Esd Sensitivity
SE873 Family Product User Guide Product Packaging and Handling ESD Sensitivity The SE873 module contains class 1 devices and is classified as Electro-Static Discharge Sensitive (ESDS). Telit recommends the two basic principles of protecting ESD devices from damage: • Handle sensitive components only in an ESD Protected Area (EPA) under protected and controlled conditions;... -
Page 58: Environmental Requirements
SE873 Family Product User Guide Environmental Requirements 14. ENVIRONMENTAL REQUIREMENTS Operating Environmental Limits Environmental Limits - Operating Temperature -40°C to +85°C Temperature ±1°C / minute maximum Rate of Change Up to 95% non-condensing or wet bulb temperature of +35°C, Humidity whichever is less Altitude -1500 m to 100,000 m... -
Page 59: Compliances
SE873 Family Product User Guide Compliances 15. COMPLIANCES The module complies with the following: • Directive 2011/65/EU art. 16 on the restriction of the use of certain hazardous substances in electrical and electronic equipment (RoHS) • Manufactured in an ISO 9000: 2008 accredited facility •... -
Page 60: Eu Red Declarations Of Conformity
SE873 Family Product User Guide Compliances EU RED Declarations of Conformity Figure 15-1 EU RED Declaration of Conformity – SE873 1VV0301216 Page 60 of 69 2018-08-24 Rev.4... -
Page 61: Figure 15-2 Eu Red Declaration Of Conformity - Se873Q5
SE873 Family Product User Guide Compliances Figure 15-2 EU RED Declaration of Conformity – SE873Q5 1VV0301216 Page 61 of 69 2018-08-24 Rev.4... -
Page 62: Glossary And Acronyms
SE873 Family Product User Guide Glossary and Acronyms 16. GLOSSARY AND ACRONYMS AGPS Assisted (or Aided) GPS AGPS provides ephemeris data to the receiver to allow faster cold start times than would be possible using only broadcast data. This extended ephemeris data could be either server-generated or locally-generated. - Page 63 SE873 Family Product User Guide Glossary and Acronyms Galileo The European GNSS currently being built by the European Union (EU) and European Space Agency (ESA). GDOP Geometric Dilution of Precision A factor used to describe the effect of satellite geometry on the accuracy of the time and position solution of a GNSS receiver.
- Page 64 SE873 Family Product User Guide Glossary and Acronyms MTSAT Multifunctional Transport Satellites The Japanese system of geosynchronous satellites used for weather and aviation control. Navigation Sensitivity The lowest signal level at which a GNSS receiver is able to reliably maintain navigation after the satellite signals have been acquired. NMEA National Marine Electronics Association QZSS...
- Page 65 SE873 Family Product User Guide Glossary and Acronyms Server-based Extended Ephemeris (i.e. predicted) data, calculated by a server and Ephemeris prediction provided to the receiver over a network. It is usually useful for up to 14 data days. See AGPS. TCXO Temperature-Compensated Crystal Oscillator Tracking Sensitivity...
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Page 66: Safety Recommendations
SE873 Family Product User Guide Safety Recommendations 17. SAFETY RECOMMENDATIONS READ CAREFULLY Be sure that the use of this product is allowed in the country and in the environment required. The use of this product may be dangerous and must be avoided in the following areas: Where it can interfere with other electronic devices in environments such as hospitals, •... -
Page 67: Electrical And Fire Safety
SE873 Family Product User Guide Safety Recommendations Electrical and Fire Safety This device is intended for built-in designs and must be installed by users that have taken adequate precautions and have sufficient knowledge to avoid electrical, mechanical and fire hazards. The module shall be mounted on a PCB which complies with V-0 flammability class. -
Page 68: Document History
Corrected active antenna reference design Corrected LNA Noise Figure example Added package description in 2.1 Updated glossary Clarified GLONASS glossary entry Text updates Added product: SE873Q5 2016-09-23 Minor text corrections and revisions Updated photo and product label information 2018-08-10 Added Galileo support Changed QZSS default to enabled.
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