丽台 GPS导航设备-Leadtek 9101LP说明书.pdf-资料库

LEADTEK GPS MODULE GPS LR9101LP Specifications Sheet Features: SiRF StarIII low power single chipset Compact module size for easy integration : 15 x 14 x 2.8 mm Built-in high gain amplifier and bandpass filter RoHS compliance ALL INFORMATION CONTAINED HEREIN IS THE SOLE PROPERTY OF LEADTEK RESEARCH AND CANNOT BE DISSEMINATED WITHOUT THE EXPRESS WRITTEN CONSENT OF LEADTEK RESEARCH. i

1. Introduction LR9101LP Specifications Sheet Rev. 0.1 The Leadtek GPS 9101LP module (LR9101) is a high sensitivity, high gain, low power and very compact Surface Mount Device (SMD). This 20-channel global positioning system (GPS) receiver is designed for a broad spectrum of OEM applications and is based on the fast and deep GPS signal search capabilities of SiRFStarIII™ low power single chipset architecture. Leadtek GPS 9101LP is designed to allow quick and easy integration into GPS-related applications, especially for compact size devices, such as: PDA, Pocket PC and other computing devices Fleet Management / Asset Tracking AVL and Location-Based Services Hand-held Device for Personal Positioning and Navigation 1.1. Features Hardware and Software Based on the high performance features of the SiRF Star III low power single chipset. Built-in high gain amplifier and bandpass filter RoHS compliant (lead-free) Compact module size for easy integration: 15x14x2.8 mm (590.6x551.2x110.2 mil). SMT pads allow for fully automatic assembly processes equipment and reflow soldering SiRFLocTM Client AGPS support Performance Cold/Warm/Hot Start Time: 42 / 38 / 1 sec. Reacquisition Time: 0.1 second RF Metal Shield for best performance in noisy environments Multi-path Mitigation Hardware © 2006 Leadtek Research Inc. All rights reserved. Page 1/12 Preliminary Confidential - Information is subject to change without prior notice. LLeeaaddtteekk PPrreelliimmiinnaarryy

Interface TTL level serial port for GPS communications interface Protocol: NMEA-0183/SiRF Binary (default NMEA) Baud Rate: 9600, 19200 bps (default 9600) LR9101LP Specifications Sheet Rev. 0.1 Ideal for compact size devices 1.2. Advantages Data / Power / RF through surface mount pads Cost saving through elimination of RF and board to board digital connectors Flexible and cost effective hardware design for different application requirements Secure SMD PCB mounting method 2. Technical specifications 2.1. Module architecture 9101LP Block Diagram SiRF GSC3f/LP © 2006 Leadtek Research Inc. All rights reserved. Page 2/12 Preliminary Confidential - Information is subject to change without prior notice. LLeeaaddtteekk PPrreelliimmiinnaarryy

Hardware Features LR9101LP Specifications Sheet Rev. 0.1 Based on the high performance features of the SiRF Star III low power single chipset Built-in high gain amplifier and bandpass filter Compact module size for easy integration: 15x14x2.8 mm (590.6x551.2x110.2 mil) SMT pads allow for fully automatic assembly processes equipment and reflow soldering RoHS compliant (lead-free) 2.2. Software Features The firmware used on Leadtek 9101LP module is GSW3.2.2, the software for SiRF StarIII low power single chipset receivers, and the default configuration is as following description: Item Core of firmware Baud rate Code type Datum Protocol message Output frequency Description SiRF GSW3.2.2 9600, 19200 bps (default 9600) NMEA-0183 ASCII WGS-84 GGA, GSA, GSV, RMC,VTG 1 Hz 2.3. Mechanical specification The Physical dimensions of the Leadtek 9101LP GPS Module are as follow: Items Length Width Height Weight Description 15.0 ± 0.1 mm (590.6 ± 4 mil) 14.0 ± 0.1 mm (551.2 ± 4 mil) 2.80 ± 0.3 mm (110.2 ± 12 mil) 1g © 2006 Leadtek Research Inc. All rights reserved. Page 3/12 Preliminary Confidential - Information is subject to change without prior notice. LLeeaaddtteekk PPrreelliimmiinnaarryy

LR9101LP Specifications Sheet Rev. 0.1 2.4. Recommended GPS Antenna Specification This GPS 9101LP receiver is designed for use with passive antenna. Parameter Antenna Type Frequency Range Specification Right-hand circular polarized passive antenna 1575.42 ± 1.023 MHz 2.5. Environmental Specification Item Operating temperature rang Storage temperature range Humidity Altitude Velocity Jerk Acceleration Description -40 deg. C to +85 deg. C -55 deg. C to +100 deg. C up to 95% non-condensing or a wet bulb temperature of +35 deg. C 18,000 meters (60,000 feet) max. 515 meters/second (1000 knots) max. 20 meters/second3, max. 4g, max. © 2006 Leadtek Research Inc. All rights reserved. Page 4/12 Preliminary Confidential - Information is subject to change without prior notice. LLeeaaddtteekk PPrreelliimmiinnaarryy

2.6. Reference design LR9101LP Specifications Sheet Rev. 0.1 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 5/12 Preliminary Confidential - Information is subject to change without prior notice. LLeeaaddtteekk PPrreelliimmiinnaarryy

3. Performance Characteristics 3.1. Position and velocity accuracy LR9101LP Specifications Sheet Rev. 0.1 Accuracy Position Velocity Time 10 meters, 2D RMS 5 meters 2D RMS, WAAS corrected <5meters(50%) 0.1 meters/second 1 microsecond synchronized to GPS time 3.2. Dynamic constrains Dynamic Conditions Altitude Velocity 18,000 meters (60,000 feet) max. 515 meters/second (1000 knots) max. Acceleration 4g, max. Jerk 20 meters/second3, max. 3.3. Acquisition time 1 Mode TTFF Hot (valid almanac, position, time & ephemeris) TTFF Warm (valid almanac, position, & time) TTFF Cold (valid almanac) re-acquisition (<10 s obstruction with valid almanac, position, time & ephemeris) Note 1: Open Sky and Stationary Environments. Leadtek 9101LP GPS Module 1 s 38 s 42 s 100 ms © 2006 Leadtek Research Inc. All rights reserved. Page 6/12 Preliminary Confidential - Information is subject to change without prior notice. LLeeaaddtteekk PPrreelliimmiinnaarryy

3.4. Timing 1PPS output LR9101LP Specifications Sheet Rev. 0.1 The 1PPS pulse width is 1 µs, this 1PPS is NOT suited to steer various oscillators (timing receivers, telecommunications system, etc). 3.5. Sensitivity Parameter Tracking Sensitivity Acquisition Sensitivity Description -159 dBm -155 dBm 3.6. Battery backup (SRAM/RTC backup) During ‘Powered down’ condition, the SRAM and RTC (Real Time Clock may be kept operation by supplying power from VBATT. The Leadtek 9101LP GPS module can accept slow VBATT supply rise time (unlike many other SiRFstarII based receivers) due to an on-board voltage detector. 3.7. Differential aiding 3.7.1. Differential GPS (DGPS) Option DGPS specification improves the Leadtek 9101LP GPS Module horizontal position accuracy to <4M 2dRMS. 3.7.2. Satellite Based augmentation System (WASS/EGONS) Option The Leadtek 9101LP GPS Module is capable of receive SBAS(WASS and EGONS) differential corrections. SBAS improves horizontal position accuracy by correcting GPS signal errors caused by ionospheric Disturbances, timing and satellite orbit errors. Both SBAS and DGPS should improve position accuracy. However, other factors can affect accuracy, such as GDOP, multipath, distance from DGPS reference station and latency of corrections. © 2006 Leadtek Research Inc. All rights reserved. Page 7/12 Preliminary Confidential - Information is subject to change without prior notice. LLeeaaddtteekk PPrreelliimmiinnaarryy

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