FireFly 1 (GMM-G3)

GPS GLONASS Module

FireFly 1 (Gmm-g3) module is a 5th generation stand-alone GNSS module enabling both GPS and GLONASS generally with lightning fast TTFF, reduces the time to first fix and increases positioning accuracy, especially when within rough urban environments, and exceptional low power consumption in a small form factor (11.5*13*2.1mm).

» GNSS Modules Comparison Sheet

Overview

The GlobalTop FireFly 1 (Gmm-g3) module utilizes MediaTek's new generation GNSS chipset "MT3333" supporting various location and navigation applications including autonomous GPS, GLONASS, GALILEO*,QZSS, SBAS, DGPS (RTCM) and AGPS. It supports up to 210 PRN channels with 99 search channels and 33 simultaneous tracking channels. (*GALILEO will be supported)

This chipset has the industry's highest level of sensitivity (-165dBm) as well as instant Time-to-First Fix (TTFF). It also combines many advanced features including AlwaysLocate™, EASY™, EPO™ and logger function.

FireFly 1 is the ideal SMD solution for those who wish to incorporate GPS functions into their very small form factor device.

TAG: GPS,GPS+GLONASS Module,GNSS,

Feature

Feature

MediaTek MT3333 Chipset, 33 tracking/ 99 acquisition-channel GPS/GLONASS receiver
Dimension 11.5 x 13 x 2.1 mm; SMD
Ultra-high Sensitivity, -165 dBm, TCXO Design
Gtop Firmware Customization Services
GPS+GLONSS Consumption current (@3.3V)
Acquisition: 35mA Typical
Tracking: 29mA Typical
E911, RoHS Compliance
DGPS (QZSS/WAAS/EGNOS/MASA/GAGAN*)
*GAGAN will be supported

Software

Software

1PPS: ±10ns RMS
AGPS support for Fast TTFF
EASY
AlwaysLocate (Advance Power Periodic Mode)
Embedded Logger function
(All features subject to change without notice)

Specification

Specification

Dimension	11.5 x 13 x 2.1 mm, SMD type
GPS Solution	MTK MT3333, 99 Channels
Frequency	GPS L1, 1575.42MHz GLONASS L1, 1598.0625~1605.375MHz
Sensitivity	Acquisition -148 dBm Tracking -165 dBm
Position Accuracy	Without aid: 3.0 m (50% CEP) DGPS (SBAS(WAAS,EGNOS,MSAS,GAGAN*)): 2.5 m (50% CEP)
TTFF (Time to First Fix)	Cold Start: <35 Seconds (Typical) Warm Start: <33 Seconds (Typical) Hot Start: <1 Seconds (Typical)
Timing Accuracy (1PPS Output)	±10ns RMS
Protocol	NMEA 0183, MTK Command
DGPS	SBAS(default) [QZSS,WAAS, EGNOS, MSAS,GAGAN*]
AGPS	Supported (Offline Mode)
Interface	2 UART
Baud Rate	4800 ~ 115200 bps
Update Rate	1 ~ 10 Hz
Power Supply	VCC: 3.0 V to 4.3 V VBACKUP: 2.0 V to 4.3 V
Current Consumption	Tracking:24mA(min), 31mA(average), 36mA(max); Acquisition: 29mA(min), 33mA(average), 37mA(max)
Working Temperature	-40 °C to +85 °C

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