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        尺寸:45X38mm MTK 芯片 GPS&北鬥雙模

        GGM-4538-MTBD

        Features

        n  Build on high performance, low-power

            MediaTek MT3333chipset

        n  Ultra high Track sensitivity:-165dBm

        n  Extremely fastTTFF at low signal level

        n  Built in highgain LNA

        n  The built-insuper capacitor for backup

            ephemeris

        n  Low powerconsumption: Max 45mA@3.3V

        n  NMEA-0183compliant protocol or custom

            protocol

        n  Operatingvoltage: 3.0V to 5.0V

        n  Operatingtemperature range: -40to85℃

        n  Patch AntennaSize:25x25x4mm

        n  Small formfactor: 45x38x13mm

        n  Communicationtype: UART/TTL

        n  Wire interfacetype: Molex 4Pin , L=3750px

        n  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

        HorizontalPosition

        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

            commandsinput and firmware upgrade

        Temperature Range

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

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

        Physical  Characteristics

                 Size:  45±0.20×38±0.20×13±0.50mm

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

                 Weight:  Approx.20g


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