| 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 |
