Оценок - 2, средний балл: 4.5
(
)
)
|
Фрагмент инструкции
Huang Modify the operating and storage temperature range. ALL INFORMATION CONTAINED HEREIN IS THE SOLE PROPERTY OF LEADTEK RESEARCH AND CANNOT BE DISSEMINATED WITHOUT THE EXPRESS WRITTEN CONSENT OF LEADTEK RESEARCH. i LR9552 Specifications Sheet Rev. 0.6 Introduction The Leadtek LR9952 module is a high sensitivity and very compact smart antenna module, with built in GPS receiver circuit. This 20-channel global positioning system (GPS) receiver is designed for a wide range of OEM applications and is based on the fast and deep GPS signal search capabilities of SiRFStarIII™ architecture. Leadtek LR9552 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 SiRFStar III/LP single chip Compact module size for easy integration: 25x25x8.9 mm (with 4 mm patch antenna) 25x25x6.9 mm (with 2 mm patch antenna) [option] Fully automatic assembly: reflow solder assembly ready Hardware compatible with SiRF GSW3.2 serial software Performance Cold/Warm/Hot Start Time: 1/38/45 sec. Reacquisition Time: 0.1 second. RF Metal Shield for best performance in noisy environments. Interface RS232 or TTL (option) level serial port for GPS communications interface Protocol: NMEA-0183/SiRF Binary (default NMEA) Baud Rate: 4800, 19200, or 57600 baud (default 4800) © 2008 Leadtek Research Inc. All rights reserved. Page 2/8 Preliminary Confidential - Information is subject to change without prior notice. LR9552 Specifications Sheet Rev. 0.6 Specifications Technical Specifications Description Feature Item Chipset GSC3f SiRFStarIII/LP single chip General Frequency L1, 1575.42 MHz C/A code 1.023 MHz chip rate Channels 20 Accuracy Position 10 meters, 2D RMS 5 meters 2D RMS, WAAS corrected <5meters(50%). Velocity 0.1 meters/second Time 1 microsecond synchronized to GPS time Datum Default WGS-84 Other selectable for other Datum Time to First Fix Reacquisition 0.1 sec., average (TTFF) Hot start 1 sec., average typical TTFF (Open Sky & Warm start 38 sec., average typical TTFF Stationary Cold start 45 sec., average typical TTFF Requirements) Dynamic Altitude 18,000 meters (60,000 feet) max. Conditions Velocity 515 meters/second (1000 knots) max. Acceleration 4g, max. Jerk 20 meters/second3, max. Power Main power input 3.3 ~ 5.0 V DC input. Power consumption .250mW (continuous mode) Supply Current .55 mA (at 5V) Backup Power 1.65 ~ 5.0 V DC input. Serial Port Electrical interface Two full duplex serial TTL interface. Protocol messages NMEA-0183@4800 bps (Default) Time-1PPS Level RS232 or TTL (option) Pulse Pulse duration The 1PPS pulse width is 1 .s, this 1PPS is NOT suited to steer various oscillators (timing receivers, telecommunications system, etc). Time reference At the pulse positive edge. Measurement Aligned to GPS second, ±1 microsecond © 2008 Leadtek Research Inc. All rights reserved. Page 3/8 Preliminary Confidential - Information is subject to change without prior notice. LR9552 Specifications Sheet Rev. 0.6 Environmental Characteristics Items Description Operating temperature range (Note) -20 deg. C to +60deg. C Storage temperature range -40 deg. C to +60 deg. C Note: The module can be operated between -30~+85degC, but higher temperature may cause internal Li backup battery deterioration that will influence the performance of GPS hot start. Physical Characteristics Items Description Length 25.0 ± 0.3 mm Width 25.0 ± 0.3 mm Height 8.90 ± 0.3 mm 6.90 ± 0.3 mm Weight 13.0g (w/ 4mm patch antenna) 8.0g (w/ 2mm patch antenna) © 2008 L e adtek R e s e arc h In c. A l l r i ghts res e r v ed. P a ge 4/ 8 Pr elim i n a r y C o nfid entia l - Infor m a t ion is sub j ec t to cha n g e wi t h out p r ior notic e . LR9552 Specifications Sheet Rev. 0.6 Module architecture © 2008 Leadtek Research Inc. All rights reserved. Page 5/8 Preliminary Confidential - Information is subject to change without prior notice. LR9552 Specifications Sheet Rev. 0.6 Software The Leadtek LR9552 module includes GSW3 high sensitivity software solution. Features include: High tracking sensitivity High configurability 1 Hz position update rate Real-time Operating System (RTOS) friendly Capable of outputting both NMEA and SiRF-proprietary binary protocols Designed to accept custom user tasks executed on the integrated ARM7TDM1 processor Runs in full power operation or optional power saving modes GSW3 default configuration is as follows: Item Description Core of firmware GSW3 Baud rate 4800, 9600, 19200, 38400 or 57600 bps (default 4800) Code type NMEA-0183 ASCII Datum WGS-84 Protocol message GGA(1sec), GSA(5sec), GSV(5sec), RMC(1sec),VTG(1sec) Output frequency 1 Hz © 2008 Leadtek Research Inc. All rights reserved. Page 6/8 Preliminary Confidential - Information is subject to change...