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                        尺寸:45X38mm 華大8020芯片 GPS單模

                        GGM-4538-HD

                        Features

                        n  Build on high performance, low-power

                            CEC HuadaHD8020 chipset

                        n  Ultra high Track sensitivity:-163dBm

                        n  Extremely fastTTFF at low signal level

                        n  Built in highgain LNA

                        n  The built-insuper capacitor for backup

                            ephemeris

                        n  Low powerconsumption: Max 60mA@3.3V

                        n  NMEA-0183compliant protocol or custom

                            protocol

                        n  Operatingvoltage: 3.3V to 5.0V

                        n  Operatingtemperature range: -40to85℃

                        n  Patch AntennaSize:25x25x4mm

                        n  Small formfactor: 45x38x13mm

                        n  Communicationtype: UART/TTL

                        n  Wire interfacetype: XH2.0mm spacing terminal, 4PinL=12500px

                        n  RoHS compliant(Lead-free)

                        Parameter

                        Specification

                        Power  Supply

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

                        Power  Consumption

                                 Acquisition:  60mA @VCC=VBAT=3.3V

                                 Tracking:  45mA  @VCC=VBAT=3.3V

                                 Backup:  25uA  @VBAT=3.3V

                        Receiver  Type

                                 Code 72 search channels

                                 GPS&QZSS L1 1575.42MHz C/A

                            SBAS: WAAS, EGNOS, MSAS, GAGAN

                        Sensitivity

                                 Tracking:   -163dBm

                                 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

                        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

                                 Supports baud rate  from 4800bps to 115200bps, 9600bps by default

                                 UART port is used for  NMEAoutput

                        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: XH2.0mm spacing terminal, 4PinL=12500px

                                 Weight: Approx.25g


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