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 GPS/WiFi
The GPS-WIFI receiver is suitable for active antennas.
Features
• 16 channel GPS receiver.
• 8192 simultaneous time-frequency search bin.
• 1 Hz position update rate.
• Based on the ANTARIS GPS Technology.
• Support NMEA 0.183 protocol.
• DGPS and SBAS (WAAS, EGNOS) support.
• Operating voltage 4.75 - 5.25 V
• Industrial operating temperature range –40…85°C
Key Benefits
• Works with wireless LAN connection.
• High acquisition and tracking sensitivity.
• Low power consumption.
• Active Antenna support.
• Support Wireless LAN (WIFI) 802.11b
Application
• Mobile tracking system
• Ground vehicle positioning
• Public transportation tracking system
Performance Specification
1. GPS Module Specification
Parameter |
Specification |
| Receiver Type |
|
L1 frequency, C/A Code |
| |
|
16-Channels |
| |
|
8192 search bins |
| Max Update Rate |
|
1 Hz |
Accuracy
(Selective_Availability_off) |
Position
Position
DGPS/SBAS |
2.5_m_CEP3
2.0_m_CEP2 |
5.0_m_SEP4
3.0_m_SEP |
| Acquisitions |
|
Fast Acquisition Mode |
Normal Mode |
High Sensitive Mode |
| |
Cold Start |
34 s |
36 s |
41 s |
| |
Warm Start |
33 s |
| |
Hot Start |
<3.5 s |
| |
Aided Start |
24 s |
| Signal Reacquisition |
|
<1 s |
| Sensitivity |
|
Fast Acquisition Mode |
Normal Mode |
High Sensitive Mode |
| |
Acquisition |
-134 dBm |
-38 dBm |
-140 dBm |
| |
Tracking |
-143 dBm |
-146 dBm |
-149 dBm |
| Timepulse Accuracy |
RMS |
50 ns |
| |
99% |
<100 ns |
| |
Granularity |
43 ns |
| Dynamics |
|
≤ 4g |
| Operational Limits |
|
COCOM restrictions |
|
Mechanical Specification
1. GPS Modul Specification
Parameter |
Specification |
Tolerance |
Unit |
| Length |
190 |
± 0.3 |
mm |
| Width |
170 |
± 0.3 |
mm |
| Thickness |
40 |
± 0.3 |
mm |
| Weight |
|
|
g |
|
Environmental Specification
1. GPS Module Specification
Test |
Standard |
| Visual_inspection 190 |
IPC-A-610 “Acceptability of electronic assemblies” I.T.R.I._Publication_No._700
IPC-SM-840B_Class_2. |
| Thermal Shock |
-40°C...+125°C |
IEC_68-2-14 |
Function_at_various temperatures |
-40°C/2_hours;_RT/2_hours;_ +85°C/2_hours;_function_tests_at_stable_temperature |
IEC_68-2-1_and_IEC_68-2-2 |
| Lifespan_test |
+85°C/1000_hours;_function |
IEC_68-2-2 |
| Damp_heat,_cyclic |
+25°C...+55°C;_>90%_rH |
IEC_68-2-30 |
| Vibration Shock |
10-500_Hz;_2_hours/axis;_5g;_function 30g/11ms_(halfsine);_3_Shock/axis;_no_function |
IEC_68-2-6 IEC_68-2-27 |
| Metallographic investigations |
|
|
|
2. Antenna Specification
Parameter |
Specification |
| Operating Temperature |
-40 ° C … +85 ° C |
| Storage Temperature |
-40 ° C … +85 ° C |
| Vibration |
Sine Sweep,1G(0-P),10-150-10Hz each axis |
| Humidity |
95%~100% RH |
|
Electrical Specification
1. Absolute Maximum Ratings
1.1. GPS Module Specification
Parameter |
Symbol |
Min |
Max |
Units |
| Power Supply |
| Power supply voltage |
Vcc |
-0.3 |
5.5 |
V |
| Backup battery voltage |
Vbat |
-0.3 |
3.6 |
V |
| Inputs |
| Digital Input pin voltage |
Vin |
-0.3 |
8 |
V |
| Analog Input pin voltage (RATE) |
Vrate |
-0.3 |
Vcc+0.3 |
V |
| RF Input |
| Antenna bias voltage (applied via Vant) |
Vant |
0 |
8 |
V |
| Antenna bias current (applied via Vant) |
Iant |
|
100 |
mA |
| Input power at RF IN (source impedance 50Ω, continuous wave) |
Prfin |
|
0 |
dBm |
| Input power at RF IN (824-829 MHz, 890-915 MHz, 1710-1785 MHz) |
Prfin |
|
10 |
dBm |
| Environment |
| Storage Temperature |
Tstg |
-40 |
125 |
°C |
|
1.2 Antenna Specification
Parameter |
Specification |
| Frequency |
1575 ± 3 MHz |
| VSWR |
max. 2 |
| Bandwidth |
min. 10 MHz |
| Impedance |
50 Ω |
| Peak Gain |
4 dBic min. (on 7cm x 7cm ground plane) |
| Gain Coverage |
≥ -4dBic at –90°≤ θ ≤90°(over 75% volume) |
| Power Handling |
1 watt |
| Polarization |
RHCP |
| Amplifier Gain |
typ. 27 dB (without cable) |
| Noise Figure |
typ. 1.5 dB |
| Output VSWR |
max. 2.0 |
| Filtering |
-35dB (±100 MHz) |
| DC Voltage |
3 to 5 V DC |
| DC Current |
max. 22 mA |
|
2. Operating Condition
Parameter |
Symbol |
Condition |
Min |
Typ |
Max |
Units |
| Power Supply |
| Power supply voltage |
Vcc |
|
4.75 |
5.0 |
5.25 |
V |
| Power supply voltage ripple |
Vcc PP |
|
|
|
50 |
mV |
| Sustained supply current |
Icc |
Vcc = 5V |
|
100 (prelim.) |
|
mA |
| Peak supply current |
Iccp |
Vcc = 5V |
|
140 (prelim.) |
|
mA |
| Backup battery voltage |
Vbat |
|
1.95 |
|
3.6 |
V |
| Backup battery current |
Ibat |
Vbat = 3.3V |
|
15 |
40 |
µA |
| Digital Inputs (RxD1, RxD2, SPEED, FWD)
|
| Input pin voltage range |
Vin |
|
0 |
|
5.5 |
V |
| Input pin low voltage |
Vin low |
|
|
|
0.4 |
V |
| Input pin high voltage |
Vin high |
|
1.5 |
|
|
V |
| Input leakage current (digital inputs) |
Iin_leak |
Vin = 5V |
-60 |
|
+60 |
µA |
| SPEED: Odometer pulse frequency |
fodo |
|
|
|
2000 |
Hz |
| Digital Outputs (TxD1, TxD2 and TIMEPULSE)
|
| Output pin low voltage |
Vout low |
Iout < 3mA (sink) |
|
|
0.24 |
V |
| Output pin high voltage |
Vout high |
Iout < 100µA (source) |
3 |
|
|
V |
| Output pin current at low voltage |
Iout low |
Vout low = 0.24V |
|
|
3 |
mA |
| Output pin current at high voltage |
Iout high |
Vout high ≥ 3V |
|
|
0.1 |
mA |
| RF Input
|
| input power |
Prfin |
|
|
|
-46 |
dBm |
V ANT antenna bias voltage (must connect to ground if not used)
|
Vant |
|
1.8 |
|
8 |
V |
| Antenna bias voltage drop |
Vant drop |
Iant = 10mA |
|
TBD |
TBD |
mV |
|
|
| |
|
|
