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尺寸:45X38mm MTK 芯片 GPS&北斗双模

GGM-4538-MTBD

Features

  • Build on high performance, low-power

  • MediaTek MT3333 chipset

  • Ultra high Track sensitivity: -165dBm

  • Extremely fast TTFF at low signal level

  • Built in high gain LNA

  • The built-in super capacitor for backup ephemeris

  • Low power consumption: Max 45mA@3.3V

  • NMEA-0183 compliant protocol or custom protocol

  • Operating voltage: 3.0V to 5.0V

  • Operating temperature range: -40to85℃

  • Patch Antenna Size:25x25x4mm

  • Small form factor: 45x38x13.8mm

  • Communication type: UART/TTL

  • Wire interface type: Molex 4Pin , L=150cm

  • RoHS compliant (Lead-free)



Parameter

Specification

Power Supply

• Supply voltage:  3.0V~5.0V  Typical: 3.3V

Power Consumption

• Acquisition:  45mA @VCC=VBAT=3.3V

• Tracking:  40mA @VCC=VBAT=3.3V

• Backup:  15uA @VBAT=3.3V

Receiver Type

• Code 66 search channels, 22 synchronous tracking channels

• GPS&QZSS L1 1575.42MHz C/A , Beidou B1 1561.098MHz

           SBAS: WAAS, EGNOS, MSAS, GAGAN

Sensitivity

• Tracking:   -165dBm

• Re-acquisition:   -156dBm

• Acquisition:   -146dBm

TTFF (Autonomous)

• Cold start:  35s  typ @-130dBm

• Warm start:  30s  typ @-130dBm

• Hot start:  1s  typ @-130dBm

Horizontal Position

Accuracy (Autonomous)

• <2.5m CEP @-130 dBm

Max Update Rate

• Up to 10Hz,1Hz by fault

Accuracy of 1PPS Signal

• not enabled

Acceleration Accuracy

• Without aid: 0.1m/s²

Dynamic Performance

• Maximum altitude: 18,000m

• Maximum velocity: 515m/s

• Acceleration: 4G

UART Port

• UART Port: TXD and RXD

• Supports baud rate from 4800bps to 115200bps, 9600bps by default

• UART port is used for NMEA output, MTK proprietary

           commands input and firmware upgrade

Temperature Range

• Normal operation: -40°C ~ +85°C

• Storage temperature: -45°C ~ +125°C

Physical Characteristics

• Size: 45±0.50 × 38±0.50 ×13.8±0.50mm

• Connecting line specifications: molex 4pin, L=3750px

• Weight: Approx.75g



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