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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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