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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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