ublox第六代GPS模块硬件手册_U-BLOXNEO-6M

GPS

hardware

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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.

locate, communicate, accelerate

www.u-blox.com

LEA-6 / NEO-6 - Hardware Integration Manual

GPS.G6-HW-09007-A Preliminary Preface

Page 3 of 62

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

LEA-6 / NEO-6 - Hardware Integration Manual

GPS.G6-HW-09007-A Preliminary Contents

Page 5 of 62

Contents

Preface ................................................................................................................................ 3

Contents .............................................................................................................................. 5

1 Hardware description .................................................................................................. 8

1.1 Overview .............................................................................................................................................. 8

1.2 Architecture .......................................................................................................................................... 8

1.3 Power management ............................................................................................................................. 9

1.3.1 Connecting power ........................................................................................................................ 9

1.3.2 Operating modes ........................................................................................................................ 10

1.4 Antenna supply - V_ANT (LEA-6) ....................................................................................................... 11

1.5 System functions ................................................................................................................................ 11

1.5.1 EXTINT - External interrupt pin ..................................................................................................... 11

1.5.2 System monitoring ...................................................................................................................... 11

1.6 Interfaces ............................................................................................................................................ 11

1.6.1 UART ........................................................................................................................................... 11

1.6.2 USB ............................................................................................................................................. 11

1.6.3 Display Data Channel (DDC) ........................................................................................................ 12

1.6.4 SPI (NEO-6) .................................................................................................................................. 14

1.7 I/O pins ............................................................................................................................................... 17

1.7.1 RESET_N ...................................................................................................................................... 17

1.7.2 EXTINT0 ...................................................................................................................................... 17

1.7.3 AADET_N (LEA-6) ........................................................................................................................ 17

1.7.4 Configuration pins (LEA-6S/6A, NEO-6) ....................................................................................... 17

2 Design-in ..................................................................................................................... 18

2.1 Design-in checklist .............................................................................................................................. 18

2.1.1 Layout design-in checklist ............................................................................................................ 18

2.1.2 Design considerations .................................................................................................................. 20

2.2 LEA-6 design ...................................................................................................................................... 21

2.2.1 LEA-6 passive antenna design ...................................................................................................... 21

2.2.2 Pin description for antenna designs (LEA-6) ................................................................................. 22

2.3 NEO-6 design ..................................................................................................................................... 24

2.3.1 Passive antenna design (NEO-6) ................................................................................................... 24

2.4 Layout ................................................................................................................................................ 25

2.4.1 Footprint and paste mask ............................................................................................................ 25

2.4.2 Placement ................................................................................................................................... 26

2.4.3 Antenna connection and grounding plane design ....................................................................... 28

2.4.4 Antenna micro strip ..................................................................................................................... 29

2.5 Antenna and antenna supervisor ........................................................................................................ 30

2.5.1 Passive antenna ........................................................................................................................... 31