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Hersteller: Leadtek Dateigröße: 111.44 kb Dateiname: Unterrichtssprache:

G, TTL, with LR9548S) Features: SiRF StarIII low power single chipset 40.64 x 71.12 x 1.4 mm (1.6 x 2.8 x 0.5 inch) TTFF(C/W/H) : 42 / 38 / 1 sec. RoHS compliance Revision History: Revision Release Date Issuer Change Description 0.6 2008/05/28 M.Huang Add revision history ALL INFORMATION CONTAINED HEREIN IS THE SOLE PROPERTY OF LEADTEK RESEARCH AND CANNOT BE DISSEMINATED WITHOUT THE EXPRESS WRITTEN CONSENT OF LEADTEK RESEARCH. i s s LR9540(G) ( with LR9548S ) Specifications Sheet Rev. 06 1. Introduction The Leadtek LR9540G module is high performance, low power, 20-channel TTL level GPS receiver, based on the SiRFStarIII/LP single chipset technology while providing fast time-to-first-fix. Its far reaching capability meets the sensitivity requirements of car navigation as well as other location-based applications. Leadtek LR9540G is designed to allow quick and easy integration into GPS-related applications, especially for compact size devices, such as: Fleet Management / Asset Tracking AVL and Location-Based Services 1.1. Features Hardware and Software Based on the high performance features of the SiRF Star III low power single chipset. Dimensions: 40.64 x 71.12 x 1.4 mm (1.6 x 2.8 x 0.5 inch) RoHS compliant (lead-free) Performance Cold/Warm/Hot Start Time: 42 / 38 / 1 sec. at open sky and stationary. Reacquisition Time: 0.1 second Interface DIP type pitch 2.0mm- 2x10 pin header. Protocol: NMEA-0183 compliant. Baud Rate: 4800 bps. Right angle MCX (RMCX) RF Connector. © 2008 Leadtek Research Inc. All rights reserved. Page 1/8 Preliminary Confidential - Information is subject to change without prior notice. s LR9540(G) ( with LR9548S ) Specifications Sheet Rev. 06 2. Specifications Technical Specifications Feature Item General Chipset GSC3f/LP Series Frequency C/A code Channels Accuracy Position VelocityTime Datum Default Time to First Fix(TTFF) Reacquisition (Open Sky & Hot start Stationary Requirements) Warm start Cold start Altitude Velocity Acceleration Dynamic Conditions Power Main power input Power consumption Supply Current Backup Power Pin Header Protocol messages Interface Description SiRFstarIII/LP single chip technology 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 0.1 sec., average 1 sec., average typical TTFF 35 sec., average typical TTFF 42 sec., average typical TTFF 18,000 meters (60,000 feet) max. 515 meters/second (1000 knots) max. 4g, max. 3.3 ~ 5.0 VDC .250 mW (continuous mode) .50mA @5.0 VDC 2.0 ~ 5.0 VDC input. DIP type pitch 2.0mm 2x10 pin header NMEA-0183@4800 bps © 2008 Leadtek Research Inc. All rights reserved. Page 2/8 Preliminary Confidential - Information is subject to change without prior notice. s s LR9540(G) ( with LR9548S ) Specifications Sheet Rev. 06 Environmental Characteristics Items Description Operating temperature range -20 deg. C to + 60 deg. C Storage temperature range -55 d...

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