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尺寸:33X25mm MTK ROM版本芯片 GPS单模

GGM-3325-MTR

Features

n Buildon high performance, low-power

MediaTek MT3337 chip set

n Ultrahigh Track sensitivity: -165dBm

n Extremelyfast TTFF at low signal level

n Builtin high gain LNA

n Lowpower consumption: Max 28mA@3.3V

n NMEA-0183compliant protocol or custom

protocol

n Operatingvoltage: 3.0V to 5.0V

n Operatingtemperature range:-40to85℃

n PatchAntenna Size: 25x25x4mm

n Smallform factor: 33.6x25.5x14mm

n Communicationtype: UART/TTL

n Wireinterface type: Audio head 4Pin,

L=1250px

n RoHScompliant (Lead-free)

Parameter

Specification

Power Supply

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

Power Consumption

         Acquisition:  28mA @VCC=3.3V

         Tracking:  25mA  @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 (Autonomous)

         Cold start:    35s  typ @-130dBm

         Warm start :    30s  typ @-130dBm

         Hot start :    1s  typ @-130dBm


HorizontalPosition

Accuracy (Autonomous)

         <2.5m CEP @-130 dBm


Update Rate

         1Hz


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

    commandsinput


Temperature Range

         Normal operation: -40°C ~ +85°C

         Storage temperature:  -45°C ~ +125°C


Physical Characteristics

         Size: 22.1±0.20×22.1±0.20×8.6±0.20mm

         Weight: Approx. 8.6g



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