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零件编号 | LS20030 | ||
描述 | GPS smart antenna module | ||
制造商 | LOCOSYS | ||
LOGO | |||
1 Page
Product name
LS20030
LS20031
LS20032
LS20033
Description
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
Version
GPS smart antenna module/USB,9600BPS,30x30mm
GPS smart antenna module/TTL,9600BPS,30x30mm
GPS smart antenna module/RS232,9600BPS,30x30mm
1.3
GPS smart antenna module/TTL,9600BPS,35x16mm
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.
© 2006 LOCOSYS Technology Inc.
Page 1/20
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
Units
Description
Message ID
$GPVTG
VTG protocol header
Course over ground
79.65
degrees Measured heading
Reference
T
True
Course over ground
degrees Measured heading
Reference
M
Magnetic
Speed over ground
2.69
knots
Measured speed
Units
N
Knots
Speed over ground
5.0
km/hr Measured speed
Units
K
Kilometer per hour
Mode
A
A=autonomous, D=DGPS, E=DR, N=Data not valid,
R=Coarse Position, S=Simulator
Checksum
*38
<CR> <LF>
End of message termination
5.2 Proprietary NMEA input message
Please refer to MTK proprietary message.
5.3 Examples to configure the power mode of GPS module
The GPS module supports different power modes that user can configure by issuing
software commands.
5.3.1 Standby mode
User can issue software command to make GPS module go into standby mode that
consumes less than 200uA current. GPS module will be awaked when receiving any byte.
The following flow chart is an example to make GPS module go into standby mode and
then wake up.
© 2006 LOCOSYS Technology Inc.
Page 8/20
8 DC & Temperature characteristics
8.1 DC Electrical characteristics
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
Parameter
Symbol Product
Min. Typ. Max. Units
LS20030
4.75
5
5.25
Input voltage
LS20031 3 3.3 4.3
VCC
V
LS20032
4
5
6
LS20033 3 3.3 4.3
Input Backup Battery Voltage VBACKUP
Input current
Icc
LS20033
LS20030
LS20031
LS20032
LS20033
2 4.3 V
22(1)
13(1)
19(1)
mA
16(1)
High Level Input Voltage
VI H LS20031
LS20033
2.0
3.6 V
Low Level Input Voltage
LS20031
VI L
LS20033
-0.3
0.8 V
High Level Input Current
LS20031
IIH
LS20033
-1
1 uA
Low Level Input Current
LS20031
IIL
LS20033
-1
1 uA
High Level Output Voltage
LS20031
VOH
LS20033
2.4
V
Low Level Output Voltage
LS20031
VOL
LS20033
0.4 V
LS20031
High Level Output Current
IOH
2 mA
LS20033
LS20031
Low Level Output Current
IOL
2 mA
LS20033
1. Measured when position fix (1Hz) is available and the function of self-generated ephemeris prediction is inactive.
8.2 Temperature characteristics
Parameter
Symbol
Operating Temperature
Topr
Storage Temperature
Tstg
Product
LS20030~LS20033
LS20030~LS20033
Min. Typ. Max. Units
-40 - 85 ℃
-40 25 85 ℃
© 2006 LOCOSYS Technology Inc.
Page 16/20
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页数 | 20 页 | ||
下载 | [ LS20030.PDF 数据手册 ] |
零件编号 | 描述 | 制造商 |
LS20030 | GPS smart antenna module | LOCOSYS |
LS20031 | GPS smart antenna module | LOCOSYS |
LS20032 | GPS smart antenna module | LOCOSYS |
LS20033 | GPS smart antenna module | LOCOSYS |
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