ACCUEIL L'ENTREPRISE ACTUALITE SUPPORT CONTACTS GPS USB PCMCIA Cartes de communication Cartes mémoires Flash Stockage OEM Modules DRAM Composants mémoires Programmateurs Service programmation   Solutions GPS   RECEPTEURS Copernicus II Copernicus Lassen DR+GPS Lassen SK-II Lassen LP Lassen iQ Lassen SQ NLC-SKII NLC-iQ NLC-LP TIMING Acutime Gold Mini-T Resolution T BOITIERS GPS NLC-232 NLC-422 NLC101-232 NLC102-232 SURVEILLANCE TrimTrac TrailTrac Trailer Box ANTENNES Bullet III Hardmount Antennes miniatures Série NGA ACCESSOIRES Ré-émetteur GPS LG Kit Meca Câbles RF Lassen SK-II GPS Module for Fast Integration   datasheet   Introduction The Lassen™ SK-II GPS module is a member of Trimble’s renowned Lassen line of OEM GPS products for embedded applications. The Lassen SK-II module builds on the original Lassen-SK8’s outstanding performance and success in demanding automotive applications. The Lassen SK-II module is intended primarily for OEMs and system integrators who require maximum GPS performance, small size, flexible configuration capability and low power usage. The Lassen SK-II module makes use of the latest advances in silicon technology to offer even more robust RF performance. Tighter integration of the RF front end using trimble’s Colossus™ ASIC has slashed the component count by 25 percent, cutting power consumption to less than 0.5 watts. Top performance Using Trimble’s 8-channel technology, the Lassen SK-II module delivers rapid startup times and reliable performance over the entire – 40° C to +85° C extended temperature range. The module incorporates Trimble’s proven software, which outputs highly accurate position data even in areas where satellite signals are weakened by terrain, foliage and structures. The Lassen SK-II module is also differential GPS (DGPS) ready for applications requiring high levels of accuracy. A full-measurement feature is available for advanced applications. Ease of integration The Lassen SK-II module’s userconfigurable, dual I/O serial ports mean greater flexibility and fast integration. A choice of three data protocols provides the user with maximum configuration capability. Either serial port may be configured to the TSIP (Trimble Standard Interface Protocol) binary data protocol for total control over system operation, to the easy-to-use TAIP (Trimble ASCII Interface Protocol), which is ideal for tracking applications or to output standard NMEA GPS data messages. The receiver is delivered from the factory with the primary port configured with TSIP In and Out. The secondary port outputs standard NMA-0183 data messages and can receive RTCM SC-104 differential correction data for 2 meter DGPS accuracy. The Lassen SK-II module also incorporates Trimble’s antenna detection and protection features to monitor the condition of the GPS antenna system. Getting Started Lassen SK-II’s Starter Kit provides everything you need to get started integrating state-of-the-art GPS into your application. Lassen SK-II Technical Data Performance Specifications : General: L1 frequency, C/A code (SPS), 8-channel, continuous tracking receiver, 32 correlators Update rate: TSIP @ 1Hz; NMEA @ 1Hz; TAIP @ 1Hz Accuracy: Horizontal: <6 meters (50%), <9 meters (90%) Altitude: <11 meters (50%), <18 meters (90%) Velocity: 0.06 m/sec PPS: ±95 nanoseconds DGPS accuracy: Position: 2m CEP (50%) Velocity: 0.06 m/sec (1 sigma) Acquisition: Hot start: <15 seconds (90%) Warm start: <42 seconds (90%) Cold start: <130 seconds (90%) Cold start requires no initialisation. Warm start requires last position, time and almanac saved in battery back-up memory. Hot start requires that the ephemeris also saved. Reacquisition: <2 seconds (90%) (after signal loss) Dynamics: Acceleration: 4g (39.2 m/sec²) Motional Jerk: 20 m/sec³ Operational limits: Altitude <18,000m or velocity <515 m/sec Either limit may be exceeded but not both. Environmental Specifications : Operating temp: – 40°C to +85°C Storage temp: –55°C to +100°C Vibration: 0.008 g²/Hz 5Hz to 20Hz 0.05 g²/Hz 20Hz to 100Hz 3dB/octave 100Hz to 900Hz Operating Humidity: 5% to 95% R.H. non-condensing, @ +60°C Electrical Characteristics: Prime power: +5V DC, ±5% Consumption: GPS board only: 95mA, 0.47W With antenna: 120mA, 0.60W Back-up power: +3.2 to +5V DC 2µA @ +3.5V, +25°C (nominal) Antenna power: 5V at 25mA available Open-circuit detection Short-circuit protection Interface Characteristics: Serial ports/1PPS: CMOS TTL levels Supported Protocols: TSIP @ 9600 baud, 8-Odd-1 (configurable) TAIP @ 4800 baud, 8-None-1 (configurable) NMEA 0183 v2.1 @ 4800 baud, 8-None-1 (configurable) RTCM SC-104 @ 4800 baud, 8-None-1 NMEA messages: GGA, VTG, GLL, ZDA, GSV, GSA and RMC Messages selectable by TSIP command; selection stored in non-volatile memory Physical Characteristics: Dimensions: 3.25" x 1.25" x 0.40" (82.6mm x 31.2mm x 10.2mm) without connectors Weight: 0.7 oz. (19.6 g) without optional shield Connectors: RF: SMB I/O: 8-pin (2x4), 0.100” header © Naelcom 2008 - Haut de la page