丽台 GPS导航设备-Leadtek LR9548S说明书.pdf-资料库

第1页 / 共24页

第2页 / 共24页

第3页 / 共24页

第4页 / 共24页

第5页 / 共24页

第6页 / 共24页

第7页 / 共24页

第8页 / 共24页

LR9548S LR9548S 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 Fax: +510 490 7759 gps@leadtek.com

Contents FEATURES.....................................................................................................................................1 HARDWARE AND SOFTWARE.........................................................................................................1 PERFORMANCE ..............................................................................................................................2 INTERFACE ....................................................................................................................................2 ADVANTAGES..............................................................................................................................2 SPECIFICATIONS........................................................................................................................3 TECHNICAL SPECIFICATIONS .........................................................................................................3 ENVIRONMENTAL CHARACTERISTICS............................................................................................4 PHYSICAL CHARACTERISTICS........................................................................................................4 INTERFACE SPECIFICATIONS..........................................................................................................4 REFERENCE DESIGN ......................................................................................................................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.......................................................................................................................9 (Bottom view) .........................................................................................................................10 RECOMMENDED FOOTPRINT..............................................................................................11 AUTOMATED MANUFACTURING COMPONENTS ..........................................................12 REEL TAPING SPECIFICATION......................................................................................................12 Tape Reel Drawing.................................................................................................................12 Polystyrene Alloy Taping Specifications................................................................................13 Polystyrene Alloy Taping Drawing........................................................................................13 REFLOW PROFILE ...................................................................................................................14 ROHS COMPLIANCE................................................................................................................15 ORDERING INFORMATION ...................................................................................................15 ORDERING INFORMATION ...................................................................................................16 GLOSSARY..................................................................................................................................17 i

LR9548S GPS Module Technical Manual v1.52 Introduction The Leadtek LR9548S GPS module is a high sensitivity, low power, Surface Mount Device (SMD). This 20-channel global positioning system (GPS) receiver is designed for a wide range of OEM applications and is based on the GPS signal search capabilities of the SiRFstarIII™ single chip architecture, SiRF’s newest chipset technology. The LR9548S is also pin-to-pin compatible with the LR9805-III (LR9548) for easier and faster transition. The LR9548S is designed to allow quick and easy integration into GPS-related applications such as: PDA, Pocket PC, and other computing devices Car and Marine Navigation Fleet Management /Asset Tracking AVL and Location-Based Services Hand-Held Device for Personal Positioning and Navigation Features Hardware and Software Based on the high performance features of the SiRFstarIII single chip Compact module size for easy integration: 24x20x2.9 mm (0.94x0.79x0.11 in). Fully automatic assembly: reflow solder assembly ready Hardware compatible with SiRF GSW3.2.0 software Multiple I/O pins reserved for customizing special user applications RoHS compliance © 2006 Leadtek Research Inc. All rights reserved. Preliminary Confidential - Information is subject to change without prior notice. Page 1/20

Performance LR9548S GPS Module Technical Manual v1.52 Cold/Warm/Hot Start Time: 42/38/1 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 Interface 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) Ideal for high volume mass production(Taping reel package) Advantages 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 2/20

LR9548S GPS Module Technical Manual v1.52 Specifications Technical Specifications Feature Chipset General Accuracy Datum Time to First Fix (TTFF) (Open Sky & Stationary Requirements) Dynamic Conditions Power Serial Port Time-1PPS Pulse Item GSC3f Frequency C/A code Channels Position Description SiRFstarIII single chip L1, 1575.42 MHz 1.023 MHz chip rate 20 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 1 sec., average 1 sec., average typical TTFF 38 sec., average typical TTFF 42 sec., average typical TTFF 18,000 meters (60,000 feet) max. 515 meters/second (1000 knots) max. 4g, max. 20 meters/second3, max. 3.2 ~ 5.0 VDC input Velocity Time Default Other Reacquisition Snap start Hot start Warm start Cold start Altitude Velocity Acceleration Jerk Main power input Power consumption ≈230 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 ≈70 mA 1.65 ~ 5.0 VDC input. © 2006 Leadtek Research Inc. All rights reserved. Preliminary Confidential - Information is subject to change without prior notice. Page 3/20

LR9548S GPS Module Technical Manual v1.52 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 ± 0.1mm (0.94in) 20 mm ± 0.1mm (0.79 in) 2.9 mm ± 0.1mm (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 4/20

Reference Design LR9548S GPS Module Technical Manual v1.52 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 5/20

资料库

丽台 GPS导航设备-Leadtek LR9548S说明书.pdf

相关推荐

GPS导航设备

热门标签

最新资料