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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

1 2 3 4 5 6 7

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