主要特点:高性能,低成本,167频道
TG621S is a high-Performance Low-Cost 167 Channel SMD Global Positioning Receiver Module ,
The TG621S module contains Venus 8 positioning engine inside, featuring high sensitivity for indoor fix, low power consumption, and fast TTFF. The superior -148dBm cold start sensitivity allows it to acquire, track, and get position fix autonomously in difficult weak signal environment. The receiver’s -165dBm tracking sensitivity allows continuous position coverage in nearly all application environments. The high performance signal parameter search engine is capable of testing 16 million time-frequency hypotheses per second, offering industry-leading signal acquisition and TTFF speed.
The TG621S module contains LNA for easy integration with passive antenna and a SAW filter for increased jamming immunity. It works with both passive and active antenna; the self-contained antenna detection and short circuit protection feature enables lowest integration cost for system integrators using active antenna.
Receiver Type |
L1 C/A code, 167-channel Venus 8 engine |
Accuracy |
Position 2.5m CEP |
|
Velocity 0.1m/sec |
|
Time 10ns |
Startup Time |
1 second hot start under open sky |
|
< 29 second warm start under open sky (average) |
|
29 second cold start under open sky (average) |
Reacquisition |
1s |
Sensitivity |
-148dBm cold start |
|
-160dBm re-acquisition |
|
-165dBm tracking |
Multi-path Mitigation |
Advanced multi-path detection and suppression |
A-GPS |
7-day sever-based AFPS(ROM and Flash type) |
|
Self-aided ephemeris estimation(Flash type) |
Update Rate |
1/2/4/5/8/10/20/25/40/50HzforFlashGPS(default1Hz) |
Dynamics |
4G (39.2m/sec2) |
Operational Limits |
Altitude < 18,000m or velocity < 515m/s |
Serial Interface |
3.3V LVTTL level |
Protocol |
NMEA-0183 V3.01 Skytraq binary |
|
9600 baud, 8, N, 1 |
Datum |
Default WGS-84 |
|
User definable |
Input Voltage |
3.3V DC +/-10% |
Input Current |
30mA Tracking 38mA Acquisition |
Dimension |
16.0mm L x 12.2mm W |
Weight: |
1.6g |
Operating Temperature |
-40Oc ~ +85oC |
Storage Temperature |
-55 ~ +100oC |
Humidity |
5% ~ 95% |