GM-820F GPS module is a highly sensitivity, ultra compact single chip for GPS application. It includes RF receiver, a fully-featured baseband processor, a Flash memory and a power management unit.
The RF receiver employs a single conversion digital low-IF architecture, the high level integration leaves only few off-chip matching and decoupling components really minimize the system cost.
The baseband processor is controlled by adaptive signal processing and navigation firmware optimized for execution on low power microprocessor. Sophisticated adaptive control algorithms provide optimal signal acquisition/tracking strategy.
Mstar Start Now™ AGPS for GSM/3GPP & CDMA for extended ephemeris and fast TTFFs (mobile phone & tracker)
Mstar Start Now™ MGAN™-LTE (long term ephemeris) for extended 5~7days ephemeris and fast TTFFs (PND & tracker/logger)
Advanced power management for trickling and position-fix™ power management
SDK tool by OEM customization API to save external mcu of the system
| Chipset | Mstar MSB2122 |
| Frequency | L1, 1575.42 MHz |
| Code | C/A Code |
| Protocol | NMEA 0183 Default : GGA,GSA,GSV,RMC Support : VTG,GLL,ZDA) Mstar binary and NMEA Command |
| Available Baud Rate | 4,800 to 115,200 bps adjustable |
| Time | 1 PPS Pulse, pulse duration 1 mini second. Time reference at the pulse positive edge. Synchronized to GPS time, ±1 μs. |
| Channels | Support 60 channels (48 acquisition & 12 tracking channels) |
| Sensitivity | Tracking -160dBm Acquisition -144dBm |
| Acquisition Time(Open Sky) | Hot start: 1 sec, average Warm start: 32 sec, average Cold start: 34 sec, average |
| Reacquisition | 0.1 second, average |
| Accuracy | Position: <10 meters, 2D RMS <5 meters, 2D RMS, WAAS corrected 1-5 meters, DGPS corrected Time 1 microsecond synchronized to GPS time |
| Maximum Altitude | Altitude < 18,000 meters (60,000 feet) |
| Maximum Velocity | < 515 meters/sec (1000 knots) |
| Maximum Acceleration | < 4 G Jerk 20 meters/sec max |
| DGPS | WAAS, EGNOS, MSAS |
| Datum | Default WGS-84 |
| Physical Characteristic | |
| Type | 22-pin stamp holes |
| Dimensions | 13. mm x 15 mm x 2.7 mm |
| Physical Characteristic | |
| Power Supply | Main power input 3.2 ~ 5.0 VDC |
| Power consumption | Track/Acquire power consumption will be 30~33mA (GPS module) |
| Environmental Range | |
| Humidity Range | 5% to 95% non-condensing |
| Operation Temperature | -40 °C ~ 85 °C |
| Storage Temperature | -40 °C ~ 125 °C |
| GM-820F_DataSheet.pdf | PDF, GM-820F DataSheet |
Taiwan: TEL：886-2-22110569 FAX：886-2-22117464 Mail：gini@martech.com.tw
China: FAX：86-0769-83977383 Mail：crackl@martech.com.tw
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