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LR9805ST LR9805-ST GPS Module GPS Module

Copyright ©2006 Leadtek Research Inc. All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording or otherwise, without the prior written consent of Leadtek Research Inc. Trademarks Leadtek and the Leadtek logo are registered trademarks of Leadtek Research Inc. All other trademarks are the property of their respective owners. Changes The material in this document is for information only and is subject to change without notice. While reasonable efforts have been made in the preparation of this document to assure its accuracy, Leadtek Research assumes no liability resulting from errors or omissions in this document, or from the use of the information contained herein. Leadtek reserves the right to make changes in the product design without reservation and without notification to its users. THE DOCUMENT IS PROVIDED BY LEADTEK "AS IS", AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL LEADTEK BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS DOCUMENT, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. Customer Support • Visit our Web site at www.leadtek.com.tw. • For support via e-mail, submit your question at service@leadtek.com.tw. Leadtek Research Inc. Leadtek Research USA 18F, 166, Chien-Yi Rd., Chung Ho, Taipei Hsien, Taiwan (235) Telephone: +886-(0)2 8226 5800 Fax: +886-(0)2 8226 3087 gpssales@leadtek.com.tw gpsfae@leadtek.com.tw 910 Auburn Ct. Fremont, CA 94538, USA Telephone: +510 490 8076, ext. 203 Fax: +510 490 7759 gps@leadtek.com

Contents INTRODUCTION..........................................................................................................................1 FEATURES.....................................................................................................................................1 HARDWARE AND SOFTWARE.........................................................................................................1 PERFORMANCE ..............................................................................................................................1 INTERFACE ....................................................................................................................................2 ADVANTAGES................................................................................................................................2 REFERENCE DESIGN.......................................................................................................................3 SPECIFICATIONS........................................................................................................................4 TECHNICAL SPECIFICATIONS...............................................................................................4 ENVIRONMENTAL CHARACTERISTICS............................................................................................5 PHYSICAL CHARACTERISTICS........................................................................................................5 INTERFACE SPECIFICATIONS..........................................................................................................5 SOFTWARE...................................................................................................................................6 ELECTRICAL SPECIFICATIONS.............................................................................................7 BLOCK DIAGRAM ..........................................................................................................................7 INTERFACE SPECIFICATION..................................................................................................7 PHOTOS AND PIN POSITIONS..........................................................................................................7 PIN SETTINGS ................................................................................................................................8 MECHANICAL DIMENSIONS...................................................................................................9 OUTLINE DRAWING ( UNIT : MM ) .................................................................................................9 BOTTOM VIEW ( UNIT : MM )........................................................................................................10 RECOMMENDED FOOTPRINT ( UNIT : MM ) ..................................................................................11 AUTOMATED MANUFACTURING COMPONENTS ..........................................................11 REEL TAPING SPECIFICATION......................................................................................................12 Tape Reel Drawing ( Unit: mm )............................................................................................12 Polystyrene Alloy Taping Specifications................................................................................13 Polystyrene Alloy Taping Drawing........................................................................................13 REFLOW PROFILE ...................................................................................................................14 ORDERING INFORMATION ...................................................................................................15 GLOSSARY..................................................................................................................................16 i

LR9805ST GPS Module v1.51Technical Manual Introduction The Leadtek LR9805ST GPS module is a high sensitivity, low power, Surface Mount Device (SMD). This 12-channel global positioning system (GPS) receiver is designed for a broad spectrum of OEM applications and is based on the fast and deep GPS signal search capabilities of SiRFstarII™ single chipset. As the single chip version of the LR9805T, The LR9805ST is pin-to-pin compatible with the LR9805-T for easier and faster transition. The LR9805ST is designed to allow quick and easy integration into GPS-related applications such as: • • Car and Marine Navigation • Fleet Management /Asset Tracking • AVL and Location-Based Services • Hand-Held Device for Personal Positioning and Navigation PDA, Pocket PC, and other computing devices Features Hardware and Software Fully automatic assembly: reflow solder assembly ready • Based on the high performance features of the SiRFstarII single chipset • Compact module size for easy integration: 24x20x2.9 mm (0.94x0.79x0.11 in) • • Hardware compatible with SiRFXTrac software • Multiple I/O pins reserved for customizing special user applications • RoHS compliance Performance • Cold/Warm/Hot Start Time: 45/35/4 sec at open sky and stationary environments • Reacquisition Time: 0.1 second • RF Metal Shield for best performance in noisy environments • Multi-path Mitigation Hardware © 2006 Leadtek Research Inc. All rights reserved. Preliminary Confidential - Information is subject to change without prior notice. Page 1/19

Interface LR9805ST GPS Module v1.51Technical Manual TTL level serial port for GPS communications interface Protocol: NMEA-0183 / SiRF Binary (default NMEA) • • • Baud Rate: 4800, 9600, 19200, 38400 or 57600 bps (default 4800) Advantages Ideal for high volume mass production(Taping reel package) • • Cost saving through elimination of RF and board to board digital connectors • • Flexible and cost effective hardware design for different application needs Secure SMD PCB mounting method © 2006 Leadtek Research Inc. All rights reserved. Preliminary Confidential - Information is subject to change without prior notice. Page 2/19

Reference design LR9805ST GPS Module v1.51Technical Manual All ground pads attach directly to ground plane by way of via. All components are reference only. © 2006 Leadtek Research Inc. All rights reserved. Preliminary Confidential - Information is subject to change without prior notice. Page 3/19

Specifications LR9805ST GPS Module v1.51Technical Manual Technical Specifications Feature Chipset General Accuracy Datum Time to First Fix (TTFF) ( Open Sky and Stationary Environment ) Dynamic Conditions Power Serial Port Time-1PPS Pulse Item GSC2x Series Frequency C/A code Channels Position Description SiRFstarII single chip technology L1, 1575.42 MHz 1.023 MHz chip rate 12 10 meters, 2D RMS 5 meters 2D RMS, WAAS corrected <5meters(50%), DGPS corrected 0.1 meters/second 1 microsecond synchronized to GPS time WGS-84 selectable for other Datum 0.1 sec., average 4 sec., average typical TTFF 35 sec., average typical TTFF 45 sec., average typical TTFF 18,000 meters (60,000 feet) max. 515 meters/second (1000 knots) max. 4g, max. 20 meters/second3, max. 3.3 ± 0.3VDC input Velocity Time Default Other Reacquisition Hot start Warm start Cold start Altitude Velocity Acceleration Jerk Main power input Power consumption ≈106 mW (continuous mode) Supply Current Backup Power Electrical interface Two full duplex serial TTL interface. Protocol messages NMEA-0183@4800 bps (Default) Level Pulse duration Time reference Measurement TTL 1 µs At the pulse positive edge. Aligned to GPS second, ±1 microsecond ≈32 mA 1.5 ± 0.1V DC input. © 2006 Leadtek Research Inc. All rights reserved. Preliminary Confidential - Information is subject to change without prior notice. Page 4/19

LR9805ST GPS Module v1.51Technical Manual Environmental Characteristics Items Operating temperature range Storage temperature range Description -40 deg. C to +85 deg. C -55 deg. C to +100 deg. C Physical Characteristics Items Length Width Height Weight Description 24 mm (0.94in) 20 mm (0.79 in) 2.9 mm (0.11 in) 2.5g Interface Specifications Items I/O Description 28 pin SMD micro package © 2006 Leadtek Research Inc. All rights reserved. Preliminary Confidential - Information is subject to change without prior notice. Page 5/19

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