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    ST702-18Z

    ST702-18Z是一款高性能GPS导航定位天线一体模组接收机,基于Ublox G7020 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,可广泛应用于车载设备、手持终端、无人机、行业领域等。

    1. 详细信息

    APPLICABLE PRODUCT P/NO OR PURCHASE CODE: 19-702018Z-00

     

    1. OVERVIEW

     

    1.1 Description

    §   ST702-18Z is a GPS receiver build-in high sense -162dBm chip on board. Featuring Ublox high performance and low power consumption positioning engine, ST702-18Z provides excellent sensitivity and short TTFF with no host interaction needed. It is suitable for vehicle products require for high sensitivity and need fast TTFF in weak signal environments.

     

    1.2 Features

    §   UBLOX high sensitivity solution

    §   56-Channel u-blox 7 engine

    §   Supports Assisted GPS Online and offline Operation

    §   High Sensitivity acquisition , reacquisition and tracking sensitivity

    §   Supports standard NMEA-0183 and UBX protocol

    §   Hybrid GPS/SBAS engine ( WAAS, EGNOS, MSAS )

    §   High immunity to jamming

    §   Up to 10Hz update rate

    §   Internal Patch ANT Size : 18.0(w)mm×18.0(d)mm×4.0(h)mm

    §   RoHS Compliant ( lead-free )

     

    1.3 Product Applications

    §   Automotive application

    §   Personal Navigation Devices (PND)


    3. GENERAL SPECIFICATION

     

    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

     

    3.3 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

    -162dBm , 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

    500m/s (Max)

    2

    Altitude

    50000m

    3

    Acceleration

    4g

     

    3.7 DC power

     

    No.

    ITEM

    SPEC

    1

    Main Power

    +3.3V DC± 5%

    3

    Supply Current

    45mA @ 3.3V   DC typical

     

    3.8 Serial Port

     

    No.

    ITEM

    SPEC

    1

    Electrical Interface

    Full duplex serial communication

    2

    Baud rate

    9600bps (Default)

    3

    Protocol Message

    NMEA-0183(Default) and UBX protocol

     

     

     

     

     

    4. ELECTRICALCHARACTERISTICS

     

    4.1 Absolute Maximum Ratings

     

    Parameter

    Symbol

    Min

    Max

    Units

    Power Supply Voltage

    VDD

    0

    6.0

    V

    Serial Port Input Voltage

    Vin

    -0.5

    3.6

    V

    Storage Temperature


    -40℃

    +85℃

    ESD Contact



    2000

    V

     

     

     

    4.2 Electrical characteristics

    ( Test temp :  25℃)

     

    Characteristics

    Symbol

    Min

    Typ

    Max

    Units

    Power Supply Voltage

    VDD

    3.0

    5.0

    5.5

    V

    Supply Current(Tracking)

    Icc

    -

    -

    45

    mA

    Supply Peak Current(Acquisition)

    Icc

    -

    -

    65

    mA

    Operation Temperature


    -30℃

    +25

    +80℃

     

     

    4.3 Basic Physical characteristics

    Characteristics

    Symbol

    Min

    Typ

    Max

    Units

    Length

    L

    -

    22.0

    -

    mm

    Width

    W

    -

    22.0

    -

    mm

    MAX High

    H

    -

    -

    8.5

    mm

    Tolerance: ±0.3mm


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