供应麗台 Leadtek LR9131 SiRF IV GPS模組 GPS Module GPS Engine Board
Introduction
The LR9131 GPS module is a high sensitivity, low power, Surface Mount Device (SMD) that fully utilized SiRFstarIV upgrade features. This 48-channel global positioning system (GPS) receiver is designed for a wide range of OEM applications and is based on the GPS signal search capabilities of the SiRFstarIV GSD4e chipset, SiRF’s newest chipset technology.
The LR9131 provides flexible Bus interfaces (UART and I2C by customer requirement).
The LR9131 is designed to allow quick and easy integration into GPS-related applications such as:
- PDA, Pocket PC, Tablet and other computing devices
- Fleet Management /Asset Tracking
- AVL and Location-Based Services
- Hand-Held Device for Personal Positioning and Navigation
- All applications of battery drive device that needs lower power consumption
Features
Performance
- Highest performance GPS PVT Engine.
- High acquisition sensitivity for fast TTFF
- Extremely low weak signal tracking sensitivity
- High jamming immunity
- Smallest footprint and total solution size
- Highest level of BOM integration
- Value added software enhancements
- Multimode A-GPS (Autonomous, MS-Based, and MS-Assisted) – Need operator support
- Embedded CGEE / SGEE (Need server support) speed up TTFF a lot and makes cold start time to be around 22 seconds.
- SiRFGeoRecovTM Reverse EE makes positioning process being done under power saving mode.
- Reacquisition Time: 0.1 second
- RF Metal Shield for best performance in noisy environments
Interface
- On TTL level serial port for GPS communications interface (UART and I2C) One I2C port for MEMS connection
- Protocol: NMEA-0183 (default)
- Baud Rate: 4800 bps
Performance
- Based on the high performance features of the SiRF Star IV 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
Advantages
- Built-in LNA.
- Embed CGEE (Client Generated Extended Ephemeris) that can capture ephemeris data from satellites locally and predicts ephemeris out to 3 days. So if the module was off within 3 days, it could complete positioning process within 2 seconds just like hot start.
- It can remove in-band jammer up to 80db-Hz and track up to 8CW jammers, so the module can prevent GPS signal interference when design-in the electrical device with noisy electrical signal interferences such as Laptop, mobile phone, DSC, etc.
- Maintain tracking sensitivity as low as -163dBm, even without network assistance. (SiRF StarIII has only -159dBm sensitivity)
- Support SiRFaware technology
- Support adaptive “Micro Power Controller” power management mode
- Support MEMS sensor through I2C interface.(V4.X.X firmware will be
supported) MEMS interrupt can improve MicroPower Mode performance.
- Only 8mW Trickle Power, so user can leave power on all day instead of power Off
- 5 Hz Navigation Update Rate: user can select 1 Hz or 5 Hz navigation update rate. (V4.1.0firmware will be supported)
- SBAS Ranging: SBAS satellite measurements will be used in the navigation solution for improved DOP and coverage. (V4.1.0 firmware will support)
- Suitable for battery drive devices that need lower power consumption application
- 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
聯繫資訊 :
Email : service@connectec.com.tw
Tel: 886-2-8221-6389
Website : www.connectec.com.tw
