Leadtek LR9548S User Manual Download Page 5 | Manualshive

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Leadtek LR9548S User Manual Download Page 5

LR9548S GPS Module Technical Manual v1.52

© 2006 Leadtek Research Inc. All rights reserved.

Page 2/20

Preliminary Confidential - Information is subject to change without prior notice.

Performance

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)

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

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Summary of Contents for LR9548S

Page 1: ...LR9548S GPS Module LR9548S GPS Module...

Page 2: ...on 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 PURP...

Page 3: ...ICAL 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 MA...

Page 4: ...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 o...

Page 5: ...al 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 Ra...

Page 6: ...Datum Reacquisition 0 1 sec average Snap start 1 sec average Hot start 1 sec average typical TTFF Warm start 38 sec average typical TTFF Time to First Fix TTFF Open Sky Stationary Requirements Cold s...

Page 7: ...prior notice Environmental Characteristics Items Description Operating temperature range 40 deg C to 85 deg C Storage temperature range 55 deg C to 100 deg C Physical Characteristics Items Description...

Page 8: ...6 Leadtek Research Inc All rights reserved Page 5 20 Preliminary Confidential Information is subject to change without prior notice Reference Design All ground pads attach directly to ground plane by...

Page 9: ...d augmentation systems like the US WAAS or European EGNOS system Option Real time Operating System RTOS friendly Capable of outputting either NMEA default or SiRF proprietary binary protocols Designed...

Page 10: ...out prior notice Electrical Specifications Block Diagram bandpass filter LNA SiRF GSC3f 16 369MHz TCXO 32 768KHz Crystal 2 85 VDC regulator voltage detector 1 50 VDC regulator serial IO RFIN 9548S Blo...

Page 11: ...onnected 10 GPIO13 I O Reserved keep floating 11 GPIO0 I O Reserved keep floating 12 GPIO1 I O Reserved keep floating 13 GPIO14 I O Reserved keep floating 14 GND PWR Ground 15 VCC_IN PWR 3 2 5 0V DC s...

Page 12: ...2 2006 Leadtek Research Inc All rights reserved Page 9 20 Preliminary Confidential Information is subject to change without prior notice Mechanical Dimensions Outline Drawing Tolerance Length 24 0 0 4...

Page 13: ...LR9548S GPS Module Technical Manual v1 52 2006 Leadtek Research Inc All rights reserved Page 10 20 Preliminary Confidential Information is subject to change without prior notice Bottom view...

Page 14: ...48S GPS Module Technical Manual v1 52 2006 Leadtek Research Inc All rights reserved Page 11 20 Preliminary Confidential Information is subject to change without prior notice Recommended Footprint Unit...

Page 15: ...20 Preliminary Confidential Information is subject to change without prior notice Automated Manufacturing Components Reel Taping Specification Material Black Conductive High Impact Polystyrene Alloy...

Page 16: ...tolerance 0 20mm Carrier camber is within 1mm in 250mm A0 and B0 measured on a plane 0 3mm above the bottom of the pocket K0 measured from a plane on the inside bottom of the pocket to the top surfac...

Page 17: ...e correct profile assures components boards and solder joints are not damaged and reliable solder connection is achievable Profiles are essential for establishing and maintaining processes You must be...

Page 18: ...LR9548S GPS Module Technical Manual v1 52 2006 Leadtek Research Inc All rights reserved Page 15 20 Preliminary Confidential Information is subject to change without prior notice RoHS Compliance...

Page 19: ...change without prior notice 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 order...

Page 20: ...than regular GPS API An application programming interface is a set of definitions of the way one piece of computer software communicates with another One of the primary purposes of an API is to provi...

Page 21: ...l position accuracy is at the meter level It will consist of three geostationary satellites and a network of ground stations Similar service is provided in America by the WAAS system See WAAS LNA Low...

Page 22: ...ms with the satellite tracking done at high priority positioning done at medium priority and time output done at low priority The timestamps often have 200 ms of jitter variance in delay and output a...

Page 23: ...uracy Time Accuracy Almanac 500 KM 2 hours 1 year Cold Start Nothing N A Specifications are typical times assuming good satellite visibility and above threshold signal strengths WAAS A system of satel...

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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