LR9551

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Performance

  • GPS, GLONASS, Galileo, BDS and SBAS reception for high GNSS availability and accuracy
  • High sensitivity navigation engine (PVT) tracks as low as
    • GPS : -165 dBm
    • GLONASS : -161 dBm
  • 52 track verification channels
  • SBAS (WAAS, EGNOS, QZSS, MSAS, GAGAN)
  • Active Jammer Remover, removes in-band jammers up to 80 dB-Hz
  • Tracks up to 8 CW jammers
  • Multimode A-GPS (Autonomous, MS-Based, and MS-Assisted), need operator support.
  • Embedded CGEE / SGEE (With back-end server support) speed up TTFF a lot and makes cold start time to be around 20+ 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

 

Hardware and Software

  • Based on the high performance features of the SiRFstarV™ low power single core logic.
  • Adaptive micropower controller
  • Only 50 to 500μA maintains hot start capability (core logic)
  • < 10mW required for TricklePower™ mode
  • RoHS compliant (lead-free)
  • Advanced navigation features
  • External interrupt input for context change detection

 

Advantages

  • Built-in LNA.
  • Built-in internal ROM and based on Firmware 5.5.X
  • It can remove in-band jammer up to 80db-Hz and track up to 8CW jammers, so the GPS-Mouse 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 GPS @ -165dBm, GLONASS @ -161dBm, even without network assistance. (SiRFstar III has only -159dBm sensitivity)
  • Support SiRFaware™ technology
  • Support adaptive“Micro Power Controller”power management mode.
  • < 10mW TricklePower™, so user can leave power on all day instead of power off.
  • Suitable for battery drive devices that need lower power consumption application
  • Cost saving through elimination of RF and board to board digital connectors
  • Flexible and cost effective hardware design for different applications
  • Embed CGEE (Client Generated Extended Ephemeris) that can capture ephemeris data from satellites locally and predicts ephemeris up to 3 days. So if the GPS-Mouse was off within 3 days, it could complete positioning process with limited time just like hot start.

 

Connector and Interface

  • Direct to DC +5V supply
  • RS232/USB interface
  • Molex or RJ11/USB A type 4 pins connector

Technical specification
Feature Content Description
Chipset GSD5e/ROM Base SiRFstarV™ low power single chipset
General Frequency GPS L1, 1575.42 MHz
Frequency GLONASS L1,1602~1615MHz
C/A code 1.023 MHz chip rate
Channels 52
Sensitivity GPS -165dB
Sensitivity GLONASS -161dB
Accuracy Position < 2.5 meters
Velocity 0.01 meters/second
Time 1 uS synchronized to GPS time
Datum Default WGS-84
Other selectable for other Datum
TTFF
(@ -130dBm)
Reacquisition 0.1 sec., average
Snap start 1 sec., average
Hot start < 2 sec.
Warm start < 20 sec
Cold start < 30 sec
Dynamic Conditions Altitude 18,000 meters (60,000 feet) max.
Velocity 515 meters/second (1000 knots) max.
Acceleration 4g, max.
Jerk 20 meters/second3, max.
Power Main power input 5 VDC input
Power Consumption Average: 60mA (Tracking Mode)
Backup Power (VSTBY) 3.3V DC battery input
Serial Port Electrical interface

Protocol messages
Default RS232 / UART
USB
NMEA-0183@9600bps
Physical Specification
Items Description
Length 42.34 mm
Width 39.76 mm
Height 14.1 mm
Weight 95 g
Environmental Specification
Items Description
Operating temperature range -20 deg. C to +60 deg. C
Storage temperature range -40 deg. C to +60 deg. C
Humidity Up to 95% non-condensing or a wet
Bulb temperature of +35 deg. C

 

LR9551
OS 語系 版本 描述
驅動程式

(32bit, 64bit)
EnglishNull
( 2016/9/19 )
Silicon Labs CP210x device-USB
檔案大小 : [ 3805 KB ]
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