Data Sheet

ManualsBrandsUnbranded ManualsAccelerometers, Gyros, GPS, & Compasses66-Channel LS20031 GPS Receiver Module (MT3339 Chipset)

LOCOSYS Technology Inc.

20F.-13, No.79, Sec. 1, Xintai 5th Rd.,

Xizhi District, New Taipei City 221, Taiwan

℡ 886-2-8698-3698

 886-2-8698-3699

www.locosystech.com

Page

1/20

Product name Description Version

LS20030 GPS smart antenna module/USB,9600BPS,30x30mm

LS20031 GPS smart antenna module/TTL,9600BPS,30x30mm

LS20032 GPS smart antenna module/RS232,9600BPS,30x30mm

LS20033 GPS smart antenna module/TTL,9600BPS,35x16mm

1.3

Datasheet of GPS smart antenna module, LS20030~3

1 Introduction

LS20030~3 series products are complete GPS smart antenna receivers, including an

embedded antenna and GPS receiver circuits, designed for a broad spectrum of OEM system

applications. The product is based on the proven technology found in LOCOSYS 66 channel GPS

SMD type receivers MC-1513 that use MediaTek chip solution. The GPS smart antenna will acquire

up to 66 satellites at a time while providing fast time-to-first-fix, one-second navigation update and

low power consumption.

It can provide you with superior sensitivity and performance even in urban canyon

and dense foliage environment.

Its far-reaching capability meets the sensitivity requirements of car

navigation as well as other location-based applications.

This module supports hybrid ephemeris prediction to achieve faster cold start. One is self-generated

ephemeris prediction that is no need of both network assistance and host CPU’s intervention. This is valid for

up to 3 days and updates automatically from time to time when GPS module is powered on and satellites are

available. The other is server-generated ephemeris prediction that gets from an internet server. This is valid for

up to 14 days. Both ephemeris predictions are stored in the on-board flash memory and perform a cold start

time less than 15 seconds.

Summary of content (20 pages)

PAGE 1
LOCOSYS Technology Inc. 20F.-13, No.79, Sec. 1, Xintai 5th Rd., Xizhi District, New Taipei City 221, Taiwan ℡ 886-2-8698-3698 886-2-8698-3699 www.locosystech.com Product name Description LS20030 GPS smart antenna module/USB,9600BPS,30x30mm LS20031 GPS smart antenna module/TTL,9600BPS,30x30mm LS20032 GPS smart antenna module/RS232,9600BPS,30x30mm LS20033 GPS smart antenna module/TTL,9600BPS,35x16mm Version 1.
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LOCOSYS Technology Inc. 20F.-13, No.79, Sec. 1, Xintai 5th Rd., Xizhi District, New Taipei City 221, Taiwan ℡ 886-2-8698-3698 886-2-8698-3699 www.locosystech.
PAGE 3
LOCOSYS Technology Inc. 20F.-13, No.79, Sec. 1, Xintai 5th Rd., Xizhi District, New Taipei City 221, Taiwan ℡ 886-2-8698-3698 886-2-8698-3699 www.locosystech.com Fig 3-2 System block diagram of LS20031 Fig 3-3 System block diagram of LS20032 Fig 3-4 System block diagram of LS20033 Page 3/20 © 2006 LOCOSYS Technology Inc.
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LOCOSYS Technology Inc. 20F.-13, No.79, Sec. 1, Xintai 5th Rd., Xizhi District, New Taipei City 221, Taiwan ℡ 886-2-8698-3698 886-2-8698-3699 www.locosystech.com 4 GPS receiver Chip MediaTek MT3339 Frequency L1 1575.
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LOCOSYS Technology Inc. 20F.-13, No.79, Sec. 1, Xintai 5th Rd., Xizhi District, New Taipei City 221, Taiwan ℡ 886-2-8698-3698 886-2-8698-3699 www.locosystech.com N/S indicator N N=north or S=south Longitude 12136.0099 dddmm.mmmm E/W Indicator E E=east or W=west Position Fix Indicator 1 See Table 5.1-3 Satellites Used 08 Range 0 to 12 HDOP 1.1 Horizontal Dilution of Precision MSL Altitude 63.8 mters Units M mters Geoid Separation 15.2 mters Units M mters Age of Diff. Corr.
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LOCOSYS Technology Inc. 20F.-13, No.79, Sec. 1, Xintai 5th Rd., Xizhi District, New Taipei City 221, Taiwan ℡ 886-2-8698-3698 886-2-8698-3699 www.locosystech.com Checksum *52 End of message termination GSA---GNSS DOP and Active Satellites Table 5.1-5 contains the values for the following example: $GPGSA,A,3,24,07,17,11,28,08,20,04,,,,,2.0,1.1,1.7*35 Table 5.1-5 GSA Data Format Name Example Units Description Message ID $GPGSA GSA protocol header Mode 1 A See Table 5.
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LOCOSYS Technology Inc. 20F.-13, No.79, Sec. 1, Xintai 5th Rd., Xizhi District, New Taipei City 221, Taiwan ℡ 886-2-8698-3698 886-2-8698-3699 www.locosystech.
PAGE 8
LOCOSYS Technology Inc. 20F.-13, No.79, Sec. 1, Xintai 5th Rd., Xizhi District, New Taipei City 221, Taiwan ℡ 886-2-8698-3698 886-2-8698-3699 www.locosystech.com VTG---Course Over Ground and Ground Speed Table 5.1-10 contains the values for the following example: $GPVTG,79.65,T,,M,2.69,N,5.0,K,A*38 Table 5.1-10 VTG Data Format Name Example Message ID $GPVTG Course over ground 79.65 Reference T Units VTG protocol header degrees Reference M Speed over ground 2.
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LOCOSYS Technology Inc. 20F.-13, No.79, Sec. 1, Xintai 5th Rd., Xizhi District, New Taipei City 221, Taiwan ℡ 886-2-8698-3698 886-2-8698-3699 www.locosystech.com Start GPS module is powered on and in normal operation mode Change GPS to standby mode Wake up GPS module unsigned char StandbyMode[] = {"$PMTK161,0*28\x0D\x0A"}; Yes Issue any byte to wake up GPS module No GPS module will return {"$PMTK010,002*2D\x0D\x0A"} and start normal operation. End 5.3.
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LOCOSYS Technology Inc. 20F.-13, No.79, Sec. 1, Xintai 5th Rd., Xizhi District, New Taipei City 221, Taiwan ℡ 886-2-8698-3698 886-2-8698-3699 www.locosystech.com and then back to normal operation mode. Start GPS module is powered on Change GPS to periodic mode with 3000ms on and 12000ms standby if position fix is available, otherwise (18000, 72000) ms will be applied. unsigned char PeriodicMode[] = {"$PMTK225,2,3000,12000,18000,72000*15\x0D\x0A"}; Note: minimum on time is 2000ms.
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LOCOSYS Technology Inc. 20F.-13, No.79, Sec. 1, Xintai 5th Rd., Xizhi District, New Taipei City 221, Taiwan ℡ 886-2-8698-3698 886-2-8698-3699 www.locosystech.com Start GPS module is powered on Change GPS to AlwaysLocate mode unsigned char AlwaysLocateMode[] = {"$PMTK225,8*23\x0D\x0A"}; Yes GPS module will return message "$PMTK001,225,3*35\x0D\x0A" if command is accepted.
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LOCOSYS Technology Inc. 20F.-13, No.79, Sec. 1, Xintai 5th Rd., Xizhi District, New Taipei City 221, Taiwan ℡ 886-2-8698-3698 886-2-8698-3699 www.locosystech.com contact us. 5.5 Examples to configure the update rate of GPS module The GPS module supports up to 10Hz update rate that user can configure by issuing software commands. Note that the configurations by software commands are stored in the battery-backed SRAM that is powered through VBACKUP pin.
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LOCOSYS Technology Inc. 20F.-13, No.79, Sec. 1, Xintai 5th Rd., Xizhi District, New Taipei City 221, Taiwan ℡ 886-2-8698-3698 886-2-8698-3699 www.locosystech.com After the GPS module is changed to higher baud rate or reduced NMEA sentence, the user can configure it to high update rate of position fix by the following commands.
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LOCOSYS Technology Inc. 20F.-13, No.79, Sec. 1, Xintai 5th Rd., Xizhi District, New Taipei City 221, Taiwan ℡ 886-2-8698-3698 886-2-8698-3699 www.locosystech.com 7 Pin assignment and descriptions Fig 7.1 Pin assignment of LS20030, LS20031 and LS20032 Fig 7.
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LOCOSYS Technology Inc. 20F.-13, No.79, Sec. 1, Xintai 5th Rd., Xizhi District, New Taipei City 221, Taiwan ℡ 886-2-8698-3698 886-2-8698-3699 www.locosystech.
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LOCOSYS Technology Inc. 20F.-13, No.79, Sec. 1, Xintai 5th Rd., Xizhi District, New Taipei City 221, Taiwan ℡ 886-2-8698-3698 886-2-8698-3699 www.locosystech.com 8 DC & Temperature characteristics 8.1 DC Electrical characteristics Parameter Input voltage Symbol VCC Input Backup Battery Voltage VBACKUP Input current High Level Input Voltage Icc VI H Product Min. Typ. Max. LS20030 4.75 5 5.25 LS20031 LS20032 LS20033 3 4 3 3.3 5 3.3 4.3 6 4.3 LS20033 2 4.
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LOCOSYS Technology Inc. 20F.-13, No.79, Sec. 1, Xintai 5th Rd., Xizhi District, New Taipei City 221, Taiwan ℡ 886-2-8698-3698 886-2-8698-3699 www.locosystech.com 9 Mechanical specification LS20030, LS20031, LS20032 Page 17/20 © 2006 LOCOSYS Technology Inc.
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LOCOSYS Technology Inc. 20F.-13, No.79, Sec. 1, Xintai 5th Rd., Xizhi District, New Taipei City 221, Taiwan ℡ 886-2-8698-3698 886-2-8698-3699 www.locosystech.com LS20033 The 6-pin connector is belonging to Wafer series connector and its pitch is 1.0mm. There is a supplier called Cherng Weei Technology Corp. http://www.cwe.com.tw and its part number is CSH-W10R-06TR for you reference. Page 18/20 © 2006 LOCOSYS Technology Inc.
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LOCOSYS Technology Inc. 20F.-13, No.79, Sec. 1, Xintai 5th Rd., Xizhi District, New Taipei City 221, Taiwan ℡ 886-2-8698-3698 886-2-8698-3699 www.locosystech.com Document change list Revision 1.0 First release on Oct. 25, 2007. Revision 1.0 to Revision 1.1 (July 20, 2009) Changed GPS chip from MT3318 to MT3329 on page 3. The units with date code after 0924 (on MC-1513) will be changed to new chip. Changed the picture of LS20033 on page 1. Added “Support AGPS” on page 1.
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LOCOSYS Technology Inc. 20F.-13, No.79, Sec. 1, Xintai 5th Rd., Xizhi District, New Taipei City 221, Taiwan ℡ 886-2-8698-3698 886-2-8698-3699 www.locosystech.com 8.1. Changed typical current of LS20030 from 29mA to 22mA in the section 8.1. Changed typical current of LS20031 from 29mA to 13mA in the section 8.1. Changed typical current of LS20032 from 34mA to 19mA in the section 8.1. Changed typical current of LS20033 from 32mA to 16mA in the section 8.1.