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Leadtek LR9548S User Manual

Global positioning system
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LR9548S
LR9548S
GPS Module
GPS Module

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Summary of Contents for Leadtek LR9548S

  • Page 1 LR9548S LR9548S GPS Module GPS Module...
  • Page 2 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.

  • Page 3: Table Of Contents

    Contents FEATURES.............................1 ......................1 ARDWARE AND OFTWARE ..........................2 ERFORMANCE ............................2 NTERFACE ADVANTAGES ..........................2 SPECIFICATIONS........................3 ......................3 ECHNICAL PECIFICATIONS ....................4 NVIRONMENTAL HARACTERISTICS ......................4 HYSICAL HARACTERISTICS ......................4 NTERFACE PECIFICATIONS ........................5 EFERENCE ESIGN ............................6 OFTWARE ELECTRICAL SPECIFICATIONS.....................7 ..........................7 LOCK IAGRAM INTERFACE SPECIFICATION....................7 ......................7 HOTOS AND OSITIONS ..........................8 ETTINGS...

  • Page 4: Features

    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.

  • Page 5: Performance

    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. Page 2/20 Preliminary Confidential - Information is subject to change without prior notice.

  • Page 6: Specifications

    Pulse duration 1 µs Pulse Time reference At the pulse positive edge. Aligned to GPS second, ±1 microsecond Measurement © 2006 Leadtek Research Inc. All rights reserved. Page 3/20 Preliminary Confidential - Information is subject to change without prior notice.

  • Page 7: Environmental Characteristics

    0.1mm (0.79 in) Height 2.9 mm 0.1mm (0.11 in) Weight 2.5g Interface Specifications Items Description 28 pin SMD micro package © 2006 Leadtek Research Inc. All rights reserved. Page 4/20 Preliminary Confidential - Information is subject to change without prior notice.

  • Page 8: Reference Design

    Reference Design All ground pads attach directly to ground plane by way of via. All components are reference only. © 2006 Leadtek Research Inc. All rights reserved. Page 5/20 Preliminary Confidential - Information is subject to change without prior notice.

  • Page 9: Software

    LR9548S GPS Module Technical Manual v1.52 Software The firmware used on Leadtek LR9548S module is GSW3.2.0, the SiRF standard GPS software for SiRFstarIII receivers. Features include: Excellent sensitivity High configurability 1 Hz position update rate Supports use of satellite-based augmentation systems like the US WAAS or European EGNOS...

  • Page 10: Electrical Specifications

    Interface Specification Photos and Pin Positions Pin 28 Pin 15 Serial Number Model Number Pin 1 Pin 14 © 2006 Leadtek Research Inc. All rights reserved. Page 7/20 Preliminary Confidential - Information is subject to change without prior notice.

  • Page 11: Pin Settings

    TTL UART Port B output. If not used, keep floating Not connected ANTPWR Antenna power input Ground RFIN RF Signal input Ground © 2006 Leadtek Research Inc. All rights reserved. Page 8/20 Preliminary Confidential - Information is subject to change without prior notice.

  • Page 12: Mechanical Dimensions

    Mechanical Dimensions Outline Drawing Length 24.0 ± 0.4 mm Tolerance: Width 20.0 ± 0.1 mm Height 2.90 ± 0.1 mm © 2006 Leadtek Research Inc. All rights reserved. Page 9/20 Preliminary Confidential - Information is subject to change without prior notice.

  • Page 13: (Bottom View)

    LR9548S GPS Module Technical Manual v1.52 (Bottom view) © 2006 Leadtek Research Inc. All rights reserved. Page 10/20 Preliminary Confidential - Information is subject to change without prior notice.

  • Page 14: Recommended Footprint

    LR9548S GPS Module Technical Manual v1.52 Recommended Footprint (Unit: mm) © 2006 Leadtek Research Inc. All rights reserved. Page 11/20 Preliminary Confidential - Information is subject to change without prior notice.

  • Page 15: Automated Manufacturing Components

    Material: Black Conductive High Impact Polystyrene Alloy (UP-6100) Surface resistivity 10 – 10 Ω/□ Quantity per reel: 1000 pcs./reel (Unit: mm) Tape Reel Drawing © 2006 Leadtek Research Inc. All rights reserved. Page 12/20 Preliminary Confidential - Information is subject to change without prior notice.

  • Page 16: Polystyrene Alloy Taping Specifications

    Packing length per 22” reel: 50.0 Meters (1:2) Component load per 15” reel: 1000 pcs. (SUR-56-3-XL) Polystyrene Alloy Taping Drawing © 2006 Leadtek Research Inc. All rights reserved. Page 13/20 Preliminary Confidential - Information is subject to change without prior notice.

  • Page 17: Reflow Profile

    The following is an example of a typical thermal profile. © 2006 Leadtek Research Inc. All rights reserved. Page 14/20 Preliminary Confidential - Information is subject to change without prior notice.

  • Page 18: Rohs Compliance

    LR9548S GPS Module Technical Manual v1.52 RoHS Compliance © 2006 Leadtek Research Inc. All rights reserved. Page 15/20 Preliminary Confidential - Information is subject to change without prior notice.

  • Page 19: Ordering Information

    LR9548S GPS Module Technical Manual v1.52 Ordering Information For every order of 1000 pcs , Leadtek will ship the modules with the reel package (shown on page 12). For order quantities less than 1000 pcs, or when ordering non-whole numbers, Leadtek will snip the taping and ship the quantity that you request without the reel.

  • Page 20: Glossary

    It is figuring out where you will be at a certain time if you hold the speed, time and course you plan to travel. © 2006 Leadtek Research Inc. All rights reserved. Page 17/20 Preliminary Confidential - Information is subject to change without prior notice.
  • Page 21 An U.S. standards committee that defines data message structure, contents, and protocols to allow the GPS receiver to communicate with other pieces of electronic equipment. © 2006 Leadtek Research Inc. All rights reserved. Page 18/20 Preliminary Confidential - Information is subject to change without prior notice.
  • Page 22 TCXO reduces the environmental changes of temperature, humidity, and vibration, to keep a stable output frequency. © 2006 Leadtek Research Inc. All rights reserved. Page 19/20 Preliminary Confidential - Information is subject to change without prior notice.
  • Page 23 United States that monitor GPS satellite data. Two master stations, located on either coast, collect data from the reference stations and create a GPS correction message. © 2006 Leadtek Research Inc. All rights reserved. Page 20/20 Preliminary Confidential - Information is subject to change without prior notice.
  • Page 24 Leadtek Research Inc. 18F, 166, Chien-Yi Rd., Chung Ho, Taipei Hsien, Taiwan (235) ©2006 Leadtek Research, Inc. All rights reserved. Version 1.52 09/26/06...

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