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Preface
Contents
1 Hardware description
1.1 Overview
1.2 Architecture
1.3 Power management
1.3.1.1 VCC - main power
1.3.1.2 V_BCKP - backup battery
1.3.1.3 VDD_USB - USB interface power supply
1.3.2.1 Maximum Performance mode
1.3.2.2 Eco mode
1.3.2.3 Power Save mode
1.4 Antenna supply - V_ANT (LEA-6)
1.5 System functions
1.6 Interfaces
1.6.2.1 USB external components
1.6.3.1 Communicating to an I2C EEPROM with the GPS receiver as I2C master
1.6.4.1 Connecting SPI FLASH memory
1.6.4.2 SPI communication (connecting to an SPI master)
1.6.4.3 Pin configuration with module as one of several slaves
1.7 I/O pins
2 Design-in
2.1 Design-in checklist
2.2 LEA-6 design
2.2.2.1 Second time pulse for LEA-6T
2.2.2.2 LEA-6R considerations
2.3 NEO-6 design
2.4 Layout
2.4.2 Placement
2.4.3 Antenna connection and grounding plane design
2.5 Antenna and antenna supervisor
2.5.3 Active antenna
2.5.4.1 Short circuit protection
2.5.5.1 Short and open circuit active antenna supervisor
3 Product handling
3.1 Packaging, shipping, storage and moisture preconditioning
3.2 Soldering
3.3 EOS/ESD/EMI Precautions
3.3.8.1 Isolation between GPS and GSM antenna
3.3.8.2 Increasing jamming immunity
3.3.8.3 In-band jamming
3.3.8.4 Out-band jamming
4 Product testing
4.1 u-blox in-series production test
4.2 Test parameters for OEM manufacturer
4.3 System sensitivity test
Appendix
A Abbreviations
B Migration to u-blox-6 receivers
B.1 Checklist for migration
B.2 Software migration
B.3 Hardware Migration
B.3.1 Hardware Migration: ANTARIS 4 ( u-blox 6
B.3.2 Hardware Migration: u-blox 5 ( u-blox 6
B.4 Migration of LEA modules
B.4.1 Migration from LEA-4 to LEA-6
B.4.2 Migration from LEA-5 to LEA-6
B.5 Migration of NEO modules
B.5.1 Migration from NEO-4S to NEO-6
B.5.2 Migration from NEO-5 to NEO-6
C Interface Backgrounder
C.1 DDC Interface
C.1.1 Addresses, roles and modes
C.1.2 DDC troubleshooting
C.2 SPI Interface
C.2.1 SPI basics
Related documents
Revision history
Revision history (Internal)
Contact
e t a r e e c c a , e t a c n u m m o c , e t a c o i l l LEA-6 / NEO-6 u-blox 6 GPS Modules Hardware Integration Manual Abstract This document describes the features and specifications of the cost effective and high-performance LEA-6 and NEO-6 GPS modules featuring the u-blox 6 positioning engine. These compact, easy to integrate stand-alone GPS receiver modules combine exceptional GPS performance with highly flexible power, design, and connectivity options. Their compact form factors and SMT pads allow fully automated assembly with standard pick & place and reflow soldering equipment for cost-efficient, high- volume production enabling short time-to-market. www.u-blox.com
LEA-6 / NEO-6 - Hardware Integration Manual Document Information Title LEA-6 / NEO-6 Subtitle u-blox 6 GPS Modules Document type Hardware Integration Manual Document number GPS.G6-HW-09007-A Document status Preliminary Document status information Objective Specification Advance Information Preliminary This document contains target values. Revised and supplementary data will be published later. This document contains data based on early testing. Revised and supplementary data will be published later. This document contains data from product verification. Revised and supplementary data may be published later. This document contains the final product specification. Released This document applies to the following products: Name LEA-6H LEA-6S Type number All All ROM/FLASH version FW6.02 ROM6.02 ROM6.02 ROM6.02 FW DR 1.0 ROM6.02 ROM6.02 ROM6.02 LEA-6A LEA-6T LEA-6R NEO-6G NEO-6Q NEO-6M All All All All All All This document and the use of any information contained therein, is subject to the acceptance of the u-blox terms and conditions. They can be downloaded from www.u-blox.com. u-blox makes no warranties based on the accuracy or completeness of the contents of this document and reserves the right to make changes to specifications and product descriptions at any time without notice. u-blox reserves all rights to this document and the information contained herein. Reproduction, use or disclosure to third parties without express permission is strictly prohibited. Copyright © 2010, u-blox AG. u-blox® is a registered trademark of u-blox Holding AG in the EU and other countries. ARM® is the registered trademark of ARM Limited in the EU and other countries. GPS.G6-HW-09007-A Page 2 of 62
LEA-6 / NEO-6 - Hardware Integration Manual Preface u-blox Technical Documentation As part of our commitment to customer support, u-blox maintains an extensive volume of technical documentation for our products. In addition to our product-specific technical data sheets, the following manuals are available to assist u-blox customers in product design and development. • GPS Compendium: This document, also known as the GPS book, provides a wealth of information regarding generic questions about GPS system functionalities and technology. • Receiver Description including Protocol Specification: Messages, configuration and functionalities of the u-blox 6 software releases and receivers are explained in this document. • Hardware Integration Manual: This Manual provides hardware design instructions and information on how to set up production and final product tests. • Application Note: document provides general design instructions and information that applies to all u-blox GPS receivers. See Section Related documents for a list of Application Notes related to your GPS receiver. How to use this Manual The LEA-6 / NEO-6 Hardware Integration Manual provides the necessary information to successfully design in and configure these u-blox 6-based GPS receiver modules. For navigating this document please note the following: This manual has a modular structure. It is not necessary to read it from the beginning to the end. To help in finding needed information, a brief section overview is provided below: 1. Hardware description: This chapter introduces the basics of function and architecture of the u-blox 6 modules. 2. Design-in: This chapter provides the Design-In information necessary for a successful design. 3. Product handling: This chapter defines packaging, handling, shipment, storage and soldering. 4. Product testing: This chapter provides information about testing of OEM receivers in production. 5. Appendix: The Appendix includes guidelines on how to successfully migrate to u-blox 6 designs, and useful information about the different antenna types available on the market and how to reduce interference in your GPS design. The following symbols are used to highlight important information within the manual: An index finger points out key information pertaining to module integration and performance. A warning symbol indicates actions that could negatively impact or damage the module. Questions If you have any questions about u-blox 6 Hardware Integration, please: • Read this manual carefully. • Contact our information service on the homepage http://www.u-blox.com • Read the questions and answers on our FAQ database on the homepage http://www.u-blox.com GPS.G6-HW-09007-A Preliminary Preface Page 3 of 62
LEA-6 / NEO-6 - Hardware Integration Manual Technical Support Worldwide Web Our website (www.u-blox.com) is a rich pool of information. Product information, technical documents and helpful FAQ can be accessed 24h a day. By E-mail If you have technical problems or cannot find the required information in the provided documents, contact the nearest of the Technical Support offices by email. Use our service pool email addresses rather than any personal email address of our staff. This makes sure that your request is processed as soon as possible. You will find the contact details at the end of the document. Helpful Information when Contacting Technical Support When contacting Technical Support please have the following information ready: • Receiver type (e.g. LEA-6A-0-000), Datacode (e.g. 160200.0300.000) and firmware version (e.g. FW6.02) • Receiver configuration • Clear description of your question or the problem together with a u-center logfile • A short description of the application • Your complete contact details GPS.G6-HW-09007-A Preliminary Preface Page 4 of 62
LEA-6 / NEO-6 - Hardware Integration Manual Contents Preface ................................................................................................................................ 3 Contents .............................................................................................................................. 5 1.4 1.5 1.3.1 1.3.2 1.5.1 1.5.2 1 Hardware description .................................................................................................. 8 1.1 Overview .............................................................................................................................................. 8 1.2 Architecture .......................................................................................................................................... 8 Power management ............................................................................................................................. 9 1.3 Connecting power ........................................................................................................................ 9 Operating modes ........................................................................................................................ 10 Antenna supply - V_ANT (LEA-6) ....................................................................................................... 11 System functions ................................................................................................................................ 11 EXTINT - External interrupt pin ..................................................................................................... 11 System monitoring ...................................................................................................................... 11 Interfaces ............................................................................................................................................ 11 UART ........................................................................................................................................... 11 USB ............................................................................................................................................. 11 Display Data Channel (DDC) ........................................................................................................ 12 SPI (NEO-6) .................................................................................................................................. 14 I/O pins ............................................................................................................................................... 17 RESET_N ...................................................................................................................................... 17 EXTINT0 ...................................................................................................................................... 17 AADET_N (LEA-6) ........................................................................................................................ 17 Configuration pins (LEA-6S/6A, NEO-6) ....................................................................................... 17 1.7.1 1.7.2 1.7.3 1.7.4 1.6.1 1.6.2 1.6.3 1.6.4 1.6 1.7 2.2 2.1 2.2.1 2.2.2 2.1.1 2.1.2 2 Design-in ..................................................................................................................... 18 Design-in checklist .............................................................................................................................. 18 Layout design-in checklist ............................................................................................................ 18 Design considerations .................................................................................................................. 20 LEA-6 design ...................................................................................................................................... 21 LEA-6 passive antenna design ...................................................................................................... 21 Pin description for antenna designs (LEA-6) ................................................................................. 22 NEO-6 design ..................................................................................................................................... 24 Passive antenna design (NEO-6) ................................................................................................... 24 Layout ................................................................................................................................................ 25 Footprint and paste mask ............................................................................................................ 25 Placement ................................................................................................................................... 26 Antenna connection and grounding plane design ....................................................................... 28 Antenna micro strip ..................................................................................................................... 29 Antenna and antenna supervisor ........................................................................................................ 30 Passive antenna ........................................................................................................................... 31 2.4.1 2.4.2 2.4.3 2.4.4 2.3.1 2.5.1 2.3 2.4 2.5 GPS.G6-HW-09007-A Preliminary Contents Page 5 of 62
LEA-6 / NEO-6 - Hardware Integration Manual 2.5.2 2.5.3 2.5.4 2.5.5 Active antenna (LEA-6) ................................................................................................................ 31 Active antenna (NEO-6) ............................................................................................................... 32 Active antenna bias power (LEA-6) .............................................................................................. 33 Active antenna supervisor (LEA-6)................................................................................................ 33 3.1 3.2 3 Product handling ........................................................................................................ 38 Packaging, shipping, storage and moisture preconditioning ............................................................... 38 Soldering ............................................................................................................................................ 38 Soldering paste............................................................................................................................ 38 3.2.1 Reflow soldering ......................................................................................................................... 38 3.2.2 Optical inspection ........................................................................................................................ 39 3.2.3 Cleaning ...................................................................................................................................... 40 3.2.4 Repeated reflow soldering ........................................................................................................... 40 3.2.5 3.2.6 Wave soldering............................................................................................................................ 40 Hand soldering ............................................................................................................................ 40 3.2.7 3.2.8 Rework ........................................................................................................................................ 40 3.2.9 Conformal coating ...................................................................................................................... 40 3.2.10 Casting ........................................................................................................................................ 40 3.2.11 Grounding metal covers .............................................................................................................. 41 3.2.12 Use of ultrasonic processes .......................................................................................................... 41 EOS/ESD/EMI Precautions .................................................................................................................... 41 Abbreviations .............................................................................................................................. 41 Electrostatic discharge (ESD) ........................................................................................................ 41 ESD handling precautions ............................................................................................................ 41 ESD protection measures ............................................................................................................. 42 Electrical Overstress (EOS) ............................................................................................................ 43 EOS protection measures ............................................................................................................. 43 Electromagnetic interference (EMI) .............................................................................................. 43 GSM applications ........................................................................................................................ 44 Recommended parts ................................................................................................................... 46 3.3.1 3.3.2 3.3.3 3.3.4 3.3.5 3.3.6 3.3.7 3.3.8 3.3.9 3.3 4.1 4.2 4.3 4 Product testing ........................................................................................................... 47 u-blox in-series production test ........................................................................................................... 47 Test parameters for OEM manufacturer .............................................................................................. 47 System sensitivity test ......................................................................................................................... 48 Guidelines for sensitivity tests ...................................................................................................... 48 ‘Go/No go’ tests for integrated devices ........................................................................................ 48 4.3.1 4.3.2 Appendix .......................................................................................................................... 49 A Abbreviations ............................................................................................................. 49 B Migration to u-blox-6 receivers ................................................................................. 49 Checklist for migration ....................................................................................................................... 49 Software migration ............................................................................................................................. 51 B.1 B.2 GPS.G6-HW-09007-A Preliminary Contents Page 6 of 62
C LEA-6 / NEO-6 - Hardware Integration Manual B.3 B.3.1 B.3.2 Hardware Migration ........................................................................................................................... 52 Hardware Migration: ANTARIS 4  u-blox 6 ............................................................................... 52 Hardware Migration: u-blox 5  u-blox 6 ................................................................................... 52 B.4 Migration of LEA modules .................................................................................................................. 52 B.4.1 Migration from LEA-4 to LEA-6 ................................................................................................... 52 B.4.2 Migration from LEA-5 to LEA-6 ................................................................................................... 54 B.5 Migration of NEO modules ................................................................................................................. 54 B.5.1 Migration from NEO-4S to NEO-6................................................................................................ 54 B.5.2 Migration from NEO-5 to NEO-6 ................................................................................................. 55 Interface Backgrounder ............................................................................................. 56 C.1 DDC Interface ..................................................................................................................................... 56 Addresses, roles and modes ........................................................................................................ 56 DDC troubleshooting .................................................................................................................. 57 SPI Interface ........................................................................................................................................ 58 SPI basics ..................................................................................................................................... 58 C.1.1 C.1.2 C.2.1 C.2 Related documents........................................................................................................... 61 Revision history ................................................................................................................ 61 Contact .............................................................................................................................. 62 GPS.G6-HW-09007-A Preliminary Contents Page 7 of 62
LEA-6 / NEO-6 - Hardware Integration Manual 1 Hardware description 1.1 Overview The LEA-6 and NEO-6 modules are standalone GPS receivers featuring the high performance u-blox-6 positioning engine. These compact, easy to integrate modules combine exceptional GPS performance with highly flexible power, design, and connectivity options. Their compact form factors and SMT pads allow fully automated assembly with standard pick & place and reflow-soldering equipment for cost-efficient, high-volume production enabling short time-to-market. u-blox GPS modules are not designed for life saving or supporting devices or for aviation and should not be used in products that could in any way negatively impact the security or health of the user or third parties or that could cause damage to goods. 1.2 Architecture LEA-6 and NEO-6 modules consist of two functional parts - the RF and the Baseband sections. See Figure 1 and Figure 2 for block diagrams of the modules. The RF Front-End includes the input matching elements, the SAW bandpass filter, the u-blox 6 RF-IC (with integrated LNA) and the frequency source. The Baseband section contains the u-blox 6 Baseband processor, the RTC crystal and additional elements such as the optional FLASH Memory for enhanced programmability and flexibility. SAW Filter RF Front-End with Integrated LNA Antenna Supervision & Supply TCXO or Crystal (optional) Power Control RF_IN V_ANT AADET_N VCC_RF VCC_OUT VCC V_BCKP G ND Figure 1: LEA-6 block diagram Baseband Processor Digital IF Filter SRAM Power Management GPS/GALILEO Engine ROM Code Backup RAM ARM7TDMI-S® RTC FLASH EPROM (optional) RTC Crystal USB V2.0 RESET_N CFG UART EXTINT TIMEPULSE DDC GPS.G6-HW-09007-A Preliminary Hardware description Page 8 of 62
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