RB-2217A

GPS Engine Board

onderzoek PDF

Beschrijving

Enhanced ANTARIS4 GPS Module with ultra high sensitivity and antenna open/short detection/protection

Feature

  • 16 channel ANTARIS4 positioning engine
  • Ultra high sensitivity to -158 dBm
  • Supports DGPS, WAAS, EGNOS and MSAS
  • Support 1 USB and 1 USART ports
  • Customized and configurable serial I/O architecture (using on-board EEPROM)
  • Support 4 Hz position update rate capability (using on-board EEPROM)
  • Support power saving modes (using on-board EEPROM)
  • Support external interrupt pin (wake up) in power saving mode
  • Antenna short/open circuit detection and protection
  • Ultra low power consumption 45mA
  • 5 µA backup current
  • Low position/velocity drift in static mode
  • Small form factor 22.4 x 17.0 mm with SMT pads (micro package)
  • RoHS compliant (lead-free)
Block diagram (RB2217A GPS module)

Specificaties

Electrical Characteristics 
Chipset Atr0635 ATMEL ANTARIS4 GPS chipset family (ARM7tdMI Thumb processor core embedded)
General Frequency L1, 1575.42MHz
  Channels, C/A code 16, 1.023 MHz chip rate, 8192 time/frequency search windows
Accuracy Position 2.5 meters CEP
  Time 50 nanosecond rms (1 PPS)
DGPS Accuracy Position 2.0 meters CEP
Acquisition Rate Reacquisition < 1 sec, typical
  Cold start 34 sec, typical
  Warm start 33 sec, typical
  Hot start 3.5 sec, typical
Sensitivity tracking -158dBm
  Acquisition/Reacquisition -148dBm
  Cold start -142dBm
Dynamic Condition Altitude 18,000 meters (60,000 Feet) max.
  Velocity 515 meters /sec (1000 Knots) max.
Power Main Power 3.3 VDC typical
  Supply current 45 mA
    80uA in “power saving” mode, (using on-board EEPROM).
  Backup power 1.5 ~ 3.6V
  Backup current 5µA typical
Serial Port Electrical interface USART, USB
  Protocols NMEA, UBX (ublox proprietary), RTCM
    Default I/O configuration 8 data bits, no parity, 1 stop bits USART1/USB: 9600 baud, output NMEA Low position/velocity drift in static mode
    4 Hz position update rate capability (using on-board EEPROM)
    Customized and configurable I/O (using on-board EEPROM).
Environmental Characteristics
Temperature Operating range - 40°C to + 85 °C
Mechanical dimensions L x W x H 22.4 x 17.0 x 3.0 mm
Interface I/O connector 28 pin SMD micro package
Antenna
Parameter Specification
Antenna type Passive and/or active antenna
Active Antenna 15 ~ 25 dB Gain recommended (50dB max.)
1.5 dB noise figure max.
Antenna Supply Using VCC_RF (pin #18) or external voltage source
V_ANT (pin#19)
Antenna Supervisor (see application circuit) Short circuit detection (built-in)
Open circuit detection enabled with external circuit

Aanbevolen