Summary of LR9805ST
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Lr9805-st gps module lr9805st gps module.
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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....
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I contents introduction ..........................................................................................................................1 features.....................................................................................................................................1 h ardware...
Page 4: Introduction
Lr9805st gps module v1.51technical manual © 2006 leadtek research inc. All rights reserved. Page 1/19 preliminary confidential - information is subject to change without prior notice. Introduction the leadtek lr9805st gps module is a high sensitivity, low power, surface mount device (smd). This 12-c...
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Lr9805st gps module v1.51technical manual © 2006 leadtek research inc. All rights reserved. Page 2/19 preliminary confidential - information is subject to change without prior notice. Interface • ttl level serial port for gps communications interface • protocol: nmea-0183 / sirf binary (default nmea...
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Lr9805st gps module v1.51technical manual © 2006 leadtek research inc. All rights reserved. Page 3/19 preliminary confidential - information is subject to change without prior notice. Reference design all ground pads attach directly to ground plane by way of via. All components are reference only..
Page 7: Specifications
Lr9805st gps module v1.51technical manual © 2006 leadtek research inc. All rights reserved. Page 4/19 preliminary confidential - information is subject to change without prior notice. Specifications technical specifications feature item description chipset gsc2x series sirfstarii single chip technol...
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Lr9805st gps module v1.51technical manual © 2006 leadtek research inc. All rights reserved. Page 5/19 preliminary confidential - information is subject to change without prior notice. Environmental characteristics items description operating temperature range -40 deg. C to +85 deg. C storage tempera...
Page 9: Software
Lr9805st gps module v1.51technical manual © 2006 leadtek research inc. All rights reserved. Page 6/19 preliminary confidential - information is subject to change without prior notice. Software the leadtek lr9805st module includes sirfxtrac high sensitivity software solution. Features include: • high...
Page 10: Electrical Specifications
Lr9805st gps module v1.51technical manual © 2006 leadtek research inc. All rights reserved. Page 7/19 preliminary confidential - information is subject to change without prior notice. Electrical specifications block diagram interface specification photos and pin positions pin 15 pin 28 pin 1 pin 14 ...
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Lr9805st gps module v1.51technical manual © 2006 leadtek research inc. All rights reserved. Page 8/19 preliminary confidential - information is subject to change without prior notice. Pin settings pin name type description 1 rev i reserved 2 gpio6 i/o reserved 3 gpio10 i/o reserved 4 rxdb i ttl uart...
Page 12: Mechanical Dimensions
Lr9805st gps module v1.51technical manual © 2006 leadtek research inc. All rights reserved. Page 9/19 preliminary confidential - information is subject to change without prior notice. Mechanical dimensions outline drawing tolerance: length 24.0 ± 0.4 mm width 20.0 ± 0.1 mm height 2.90 ± 0.1 mm.
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Lr9805st gps module v1.51technical manual © 2006 leadtek research inc. All rights reserved. Page 10/19 preliminary confidential - information is subject to change without prior notice. Bottom view ( unit : mm ).
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Lr9805st gps module v1.51technical manual © 2006 leadtek research inc. All rights reserved. Page 11/19 preliminary confidential - information is subject to change without prior notice. Recommended footprint ( unit : mm ) automated manufacturing components.
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Lr9805st gps module v1.51technical manual © 2006 leadtek research inc. All rights reserved. Page 12/19 preliminary confidential - information is subject to change without prior notice. Reel taping specification • material: black conductive high impact polystyrene alloy (up-6100) • surface resistivit...
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Lr9805st gps module v1.51technical manual © 2006 leadtek research inc. All rights reserved. Page 13/19 preliminary confidential - information is subject to change without prior notice. Polystyrene alloy taping specifications 10 sprocket hole pitch cumulative tolerance ±0.20mm carrier camber is withi...
Page 17: Reflow Profile
Lr9805st gps module v1.51technical manual © 2006 leadtek research inc. All rights reserved. Page 14/19 preliminary confidential - information is subject to change without prior notice. Reflow profile high quality, low defect soldering requires identifying the optimum temperature profile for reflowin...
Page 18: Ordering Information
Lr9805st gps module v1.51technical manual © 2006 leadtek research inc. All rights reserved. Page 15/19 preliminary confidential - information is subject to change without prior notice. Ordering information for every order of 1000 pcs , leadtek will ship the modules with the reel package (shown on pa...
Page 19: Glossary
Lr9805st gps module v1.51technical manual © 2006 leadtek research inc. All rights reserved. Page 16/19 preliminary confidential - information is subject to change without prior notice. Glossary a-gps assisted gps or agps is a technology that uses an assistance server to cut down the time needed to f...
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Lr9805st gps module v1.51technical manual © 2006 leadtek research inc. All rights reserved. Page 17/19 preliminary confidential - information is subject to change without prior notice. Dead reckoning the process of estimating your position by advancing a known position using course, speed, time and ...
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Lr9805st gps module v1.51technical manual © 2006 leadtek research inc. All rights reserved. Page 18/19 preliminary confidential - information is subject to change without prior notice. Nmea (national marine electronics association) an u.S. Standards committee that defines data message structure, con...
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Lr9805st gps module v1.51technical manual © 2006 leadtek research inc. All rights reserved. Page 19/19 preliminary confidential - information is subject to change without prior notice. Time to first fix (ttff) the time it takes a gps receiver to find satellites after you first turn it on, when the g...
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Leadtek research inc. 18f, 166, chien-yi rd., chung ho, taipei hsien, taiwan (235) ©2006 leadtek research, inc. All rights reserved. Version 1.51 5/09/06.