NL3333 >> Product at glance
The NAVIA NL3333 new navigation receiver is made in an original form factor of 8.7 x 9.5 mm based on a MediaTek MT3333 chipset. In comparison with previous NAVIA modules, NL3333 dimensions are scaled down, and the power consumption is significantly reduced. At the same time, the price remains at a reasonable level.
Relative to other NAVIA modules, NL3333 features a more flexible power management scheme. The power control of the active antenna is brought to a dedicated pin. It allows saving place on the customer’s PCB when using the passive antenna or to put a necessary RF decoupling (inductance) on the board when the active antenna is necessary.
The receiver utilizes the full range of GNSS of systems: GPS, GLONASS, Galileo, QZSS and, in the future, BeiDou. NL3333 has the advantage of high sensitivity, low energy consumption, and fast time to the first fix (TTFF). The module includes a 12-staged noise suppression system. The supply voltage of the module is 2.8 – 4.2 Volts, which allows using it successfully in any device powered from LiPo batteries. The receiver communicates with consumer equipment through the UART using the NMEA protocol.
Technical Features:
| Chipset | MTK MT3333 | ||
| Working frequencies | GPS L1: 1575.42 MHz GLONASS L1: 1598.0625~1605.375 MHz GALILEO E1: 1575.42 MHz |
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| Power consumption @ 3.3V and 1 Hz update rate | GPS+GLONASS | GPS alone | |
| Acquisition | 22 mA | 19 mA | |
| Tracking | 18 mA | 14 mA | |
| Sensitivity | Cold start (autonomous Acquisition): -148 dBm Re-acqisition: -163 dBm Tracking: -165 dBm |
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| TTFF (time to the first fix) | Hot start: 1 sec Warm start: 22 sec Cold start: 25 sec |
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| Horizontal Position Accuracy | Without corrections 3.0 m With DGPS SBAS (WAAS, EGNOS, MSAS) 2.5 m |
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| Update rate (NMEA) | Up to 10 Hz (step 1 Hz) | ||
| UART ratings | 4800/9600/…/115200 baud | ||
| AGPS (EPO) | Supported | ||
| Functions | EASY, Always Locate, EPO/HotStill | ||
| Power supply voltages | VCC: 2.8 V … 4.3 V
VBACKUP: 2.0 V… 4.3 V |
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| Supported antennas | Passive (patch, chip etc) Active |
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| BackupCurrent @ 3V | 7 uA | ||
| Dimensions | 8.7 x 9.5 x 2.0 mm, SMD package | ||
| Operating temperature | -40 °C … +85 °C | ||
| Antenna input ESD protection | IEC 61000-4-2 level III | ||