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.
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Receiver Type |
L1 C/A code, 167-channel Venus 8 engine |
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Accuracy |
Position 2.5m CEP |
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Velocity 0.1m/sec |
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Time 10ns |
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Startup Time |
1 second hot start under open sky |
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< 29 second warm start under open sky (average) |
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29 second cold start under open sky (average) |
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Reacquisition |
1s |
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Sensitivity |
-148dBm cold start |
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-160dBm re-acquisition |
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-165dBm tracking |
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Multi-path Mitigation |
Advanced multi-path detection and suppression |
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A-GPS |
7-day sever-based AFPS(ROM and Flash type) |
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Self-aided ephemeris estimation（Flash type） |
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Update Rate |
1/2/4/5/8/10/20/25/40/50HzforFlashGPS(default1Hz) |
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Dynamics |
4G (39.2m/sec2) |
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Operational Limits |
Altitude < 18,000m or velocity < 515m/s |
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Serial Interface |
3.3V LVTTL level |
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Protocol |
NMEA-0183 V3.01 Skytraq binary |
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9600 baud, 8, N, 1 |
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Datum |
Default WGS-84 |
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User definable |
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Input Voltage |
3.3V DC +/-10% |
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Input Current |
30mA Tracking 38mA Acquisition |
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Dimension |
16.0mm L x 12.2mm W |
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Weight: |
1.6g |
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Operating Temperature |
-40Oc ~ +85oC |
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Storage Temperature |
-55 ~ +100oC |
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Humidity |
5% ~ 95% |
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