俄罗斯少女?体mm照

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                尺寸:18X18mm 華大8020芯片 GPS&北鬥雙模 帶電池

                GAM-1818B-HDBD

                Features

                n  Build on high performance, low-power

                          CEC Huada HD8020 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

                n  Operatingvoltage: 3.3V to 5.0V

                n  Operatingtemperature range: -40to85℃

                n  Patch Antenna Size:18.4x18.4x1.5mm

                n  Small formfactor: 18.4x18.4x4.6mm

                n  Communicationtype: UART/TTL

                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 , Beidou B1  1561.098MHz

                                      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 and RXD

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

                ?         UART port is used for  NMEAoutput, Huada proprietary  

                                       commandsinput

                Temperature Range

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

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

                Physical Characteristics

                ?         Size: 18.3±0.50 × 18.3±0.20 × 4.6±0.20mm

                ?         Weight: Approx.11.9g


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