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    ST376

    ST376是一款高性能GNSS导航定位模块,基于MTK 3337 GPS接收机芯片,支持GPS,GALILEO,QZSS以及卫星增强系统SBAS。具有高灵敏度、低功耗优势,可广泛应用于便携式设备,如 PND,PAD,对讲机等;可穿戴设备,户外 GPS 跟踪器,自行车导航仪等;无人机;车载车机(驾驶舱)导航设备如车载终端,行车记录仪, OBD以及行车预警系统等。

    1. 详细信息

    APPLICABLE PRODUCT P/NO OR PURCHASE CODE: 20-MT37616-00

     

    1. OVERVIEW

     

    1.1 Description

    • The ST376 is a complete GPS engine module that features super sensitivity, low power and small form factor. The GPS signal is applied to the antenna input of module, and a complete serial data message with position, velocity and time information is presented at the serial interface with NMEA protocol or custom protocol.

    • It is based on the high performance features of the MediaTek 3337 single-chip architecture. Its -163dBm tracking sensitivity extends positioning coverage into place like urban canyons and dense foliage environment where the GPS was not possible before. The small form factor and low power consumption make the module easy to integrate into portable device like PNDs, mobile phones, cameras and vehicle navigation systems, as well as timing devices.

       

     

    1.2 Features

    • Ultra high sensitivity: -163dBm

    • Extremely fast TTFF at low signal level

    • Built in high gain LNA

    • Low power consumption: Tracking 18 mA (without antenna)

    • NMEA-0183 compliant protocol or custom protocol

    • Operating voltage: 3.0V to 4.3V

    • Operating temperature range: -40 to 85℃

    • Compact Board Size for easy integration into hand-held device. Less than 2g.

    • RoHS compliant (Lead-free)

     

    1.3 Product Applications

    • Timing Devices

    • Automotive application

    • Personal Navigation Devices (PND)

    • Wearable applications


    3. GENERAL SPECIFICATION

     

    • The Global Positioning System uses satellite navigation, an entirely new concept in navigation. GPS has become established in many areas, for example, in civil aviation or deep-sea shipping. The GPS system is operated by the government of the United States of America, which also has sole responsibility for the accuracy and maintenance of the system. The system is constantly being improved and may entail modifications effecting the accuracy and performance of the GPS equipment.

     

     

    3.1 General specification

     

    No.

    ITEM

    SPEC

    1

    Receiving Frequency

    GPS L1/CA code , 1575.42MHz

    2

     SBAS supported

    WAAS, EGNOS, MSAS, GAGAN

    3

    QZSS supported

    QZSS

     

    3.2 Accuracy

     

    No.

    ITEM

    SPEC

    1

    Horizontal position accuracy(-130dBm)

    2.5 meter CEP, 24hours static, without SA

    2.0 meter CEP, 24hours static, with SBAS

    2

    Velocity accuracy

    0.1 meter/second , without SA

    3

    Timing

    ±10 ns

     

    3.3 Datum

     

    No.

    ITEM

    SPEC

    1

    Datum

    WGS-84 (Default)

     

    3.4 Acquisition Rate

     

    No.

    ITEM

    SPEC

    1

    Hot start2

    1 s, Autonomous

    2

    Cold start2

    29 s, Autonomous

    26 SVs, All satellites at -130 dBm

     

    3.5 Sensitivity

     

    No.

    ITEM

    SPEC

    1

    Tracking Sensitivity

    -163dBm , Typical

    2

    Acquisition Sensitivity

    -148dBm , Typical

    3

    Reacquisition Sensitivity

    -160dBm , Typical

    4

    Hot start Sensitivity

    -156dBm, Typical

     

    3.6 Dynamic condition

     

    No.

    ITEM

    SPEC

    1

    Velocity

    515m/s (Max)

    2

    Altitude

    18000m

    3

    Acceleration

    4g (MAX)

     

    3.7 DC power

     

    No.

    ITEM

    SPEC

    1

    Main Power

    +3.3V DC typical

    3

    Supply Current

    25mA @ 3.3V   DC typical

     

    3.8 Serial Port

     

    No.

    ITEM

    SPEC

    1

    Electrical Interface

    Full duplex serial communication

    2

    Baud rate

    9600bps (Default) with user selectable baud rate (4800,9600,19200,38400,57600), User customized

    3

    Protocol Message

    NMEA-0183

    GGA, GSA, GSV, RMC (VTG ,GLL and ZDA for optional)

     

     

    4. ELECTRICAL CHARACTERISTICS

     

    4.1 Absolute Maximum Ratings

     

    Parameter

    Symbol

    Min

    Max

    Units

    Power Supply Voltage

    VDD

    0

    4.3

    V

    RTC supply and battery backed

    Vbat

    0

    4.3

    V

    Serial Port Input Voltage

    Vin

    -0.5

    3.6

    V

    Storage Temperature


    -45

    +85℃

    ESD Contact



    2000

    V

     

    4.2 Electrical characteristics

    (Test temp:    25℃)

     

    Characteristics

    Symbol

    Min

    Typ

    Max

    Units

    Power Supply Voltage

    VDD

    3.0

    3.3

    3.6

    V

    Supply Current(Tracking)

    Icc

    -

    18

    -

    mA

    Supply Current(Acquisition)

    Icc

    -

    25

    -

    mA

    Backup battery input current

    Ibat


    5


    uA

    Operation Temperature


    -40℃

    +25

    +85


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