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尺寸:29x25MM尺寸 MTK 3339 Flash版本芯片 GPS单模

GAM-2925A-MT


Features

  • Build on high performance, low-power

    MediaTek MT3339 chip set

  • Ultra high Track sensitivity: -165dBm

  • Extremely fast TTFF at low signal level

  • Built in high gain LNA

  • Low power consumption: Max 30mA@3.3V

  • NMEA-0183 compliant protocol or custom

    protocol

  • Operating voltage: 3.0V to 5.0V

  • Operating temperature range:-40to85℃

  • Patch Antenna Size: 18.4x18.4x4mm

  • Module Size: 32x24x8.6mm

  • Communication type: UART/TTL

  • RoHS compliant (Lead-free)


Parameter

Specification

Power Supply

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

Power Consumption

Acquisition:  30mA @VCC=3.3V

Tracking:  20mA @VCC=3.3V

Standby:  2.0mA @VCC=3.3V

Backup:  15uA @VBAT=3.3V

Receiver Type

Code 66 search channels, GPS&QZSS L1 1575.42MHz C/A

22 simultan ous tracking channels

Sensitivity

Tracking:   -165dBm

Re-acquisition:   -156dBm

Acquisition:   -148dBm


TTFF (EASY enabled)

Cold start:   15s  typ @-130dBm

Warm start:   5s  typ @-130dBm

Hot start :   1s  typ @-130dBm


TTFF (EASY disabled)

Cold start(Autonomous):   35s  typ @-130dBm

Warm start (Autonomous):   30s  typ @-130dBm

Hot start (Autonomous):   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

Typical accuracy: ±10ns

Time pulse width 100ms


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: 32.0±0.50 ×24.0±0.50 ×8.60±0.50mm

Weight: Approx. 9.6g



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