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尺寸:20X20mm 国科GK9501S 芯片 GPS&北斗双模

GAM-2020S-GKBD


Features


  • Build on high performance, low-power

    GK9501 chip set

  • Ultra high Track sensitivity: -165dBm

  • Extremely fast TTFF at low signal level

  • Built in high gain LNA

  • Low power consumption: Max 35mA@3.3V

  • NMEA-0183 compliant protocol or custom

        protocol

  • Operating voltage: 2.8V to 4.3V

  • Operating temperature range:-40to85℃

  • Patch Antenna Size: 18x18x4mm

  • Module Size: 19.98x19.95x7.2mm

  • SMD type with stamp holes

  • Communication type: UART/TTL

  • RoHS compliant (Lead-free)




Parameter

       Specification

Power Supply

• Supply voltage: 2.8V~4.3V  Typical: 3.3V

Power Consumption

• Acquisition:  35mA @VCC=VBAT=3.3V

• Tracking:  30mA @VCC=VBAT=3.3V

• Standby:  2.5mA @VCC=VBAT=3.3V

• Backup:  20uA @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:   -148dBm


TTFF (EASY enabled)

• Cold start:   15s  typ @-130dBm

• Warm start:   5s  typ @-130dBm

• Hot start :   1s  typ @-130dBm


TTFF (EASY disabled)

• Cold start(Autonomous):   35s  typ @-130dBm

• Warm start (Autonomous):   30s  typ @-130dBm

• Hot start (Autonomous):   1s  typ @-130dBm


Horizontal Position

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, GK proprietary

    commands input and firmware upgrade


Temperature Range

• Normal operation: -40°C ~ +85°C

• Storage temperature: -45°C ~ +125°C


Physical Characteristics

• Size: 19.98±0.50 ×19.95±0.50 ×7.2±0.50mm

• Weight: Approx. 7.8g




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