Rainbow Electronics ATR0640 - Manual (Page 3)

3
5105A–GPS–06/05
ATR0640 [Preliminary]
Specifications
Notes: 1. Cold
− No Time/Position/Ephemeris
2. Warm
− Estimate of Time and/or Position, Collecting Ephemeris
3. Hot
− Up-to-Date Time/Position/Ephemeris
Table 1. Specifications
Characteristic Details Value
Position Accuracy
Autonomous (without corrections) 4.0m
With WAAS/EGNOS/MSAS Corrections 2.0m
With DGPS Corrections 1.0m
Acquisition Time
Typical Acquisition Time (1,2,3)
Hot Start < 10 sec
Warm Start < 45 sec
Cold Start < 150 sec
Typical Reacquisition Time < 1 sec
Dynamics
Sensitivity –145 dBm
Max. Velocity 425 m/s (951 mph)
Altitude –500m to +17,500m (–1600 to 57,400 ft)
Data Output Rate 1 Hz
Communication Standard NMEA–0183 V2.2 output messages $GGA, $GSA, $ZDA, $RMC, $GLL, $GSV
Electrical Characteristics
Power (Reference Design) 35 mA, typ
Voltage
2.7 – 3.3 VDC, I/O ring
1.8V ±5% core logic
Back-up Power < 12 µA @ 25 C
GPS signal input, SIGI
400 mV p-p (min)
800 mV p-p (typ)
1.8V p-p (max)
AC coupled
Reference Clock Input
16.367667 MHz from RF section
400 mV p-p (min)
800 mV p-p (typ)
1.8V p-p (max)
AC coupled