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Multi-mode and Multi-frequency Satellite Positioning Chip GK9501

Product Features

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Product parameters

Function

Support Beidou/GPS/GLONASS/GALILEO/QZSS/SBAS

Multi-system joint positioning and single system independent positioning

Support D-GNSS differential positioning, and A-GNSS auxiliary positioning

Support ephemeris prediction, and DR integrated navigation application

Support dynamic frequency adjustment with 32-bit application processor

RTC

Support 32.768 KHz ± 20 ppm crystal oscillator, 1.1V RTC clock output

Output format

Support NMEA 0183 V4.1 and previous versions with a maximum fixed update frequency of 10 Hz

Clock input

Support PPS with external 16.368 MHz TCXO

Peripheral interfaces

UART/SPI/GPIO/I2C

Physical specification

BGA package: size 4.3 mm X 4.3 mm, 57 pin, 0.5mm pitch

LGA package: size 5.0 mm X 5.0 mm, 40 pin, 0.4 mm pitch


Item

Index

Typical value

Unit

Positioning time

Cold boot

27.5

s

Warm boot

<1

s

Recapture

<1

s

A-GNSS

<10

s

Tracking

Cold boot

-148

dBm

Warm boot

-162

dBm

Recapture

-164

dBm

Tracking

-166

dBm

Accuracy

Horizontal positioning accuracy

2.5

m

Altitude positioning accuracy

3.5

m

Speed accuracy

0.1

m/s

Timing accuracy

15

ns

Power consumption

Capture current value @3.3v

30

mA

Tracking current value @3.3v

20

mA

*Parameters are for reference only


Main Applications

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●Vehicle positioning and navigationequipment
●Wearable devices, such as children'swatches, wristbands, etc.
●Logistics property tracking, such as pettracker, portable POS device, etc.
●Time ser vice of communication basestation, rail transportation, electric power and other systems
●Unmanned aerial vehicle/drone



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