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Gps开发资料 MTK系列芯片的设置指令
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2009-03-22
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$PMTK101*32<CR><LF>//测试.. $PMTK104*37<CR><LF>//完全冷启动... $PMTK334,1,1,1,1,1,5,1,1,1,1,1,1,0,1,1 ,1,1,1,1*2C<CR><LF>//NMEA语句的输出设置 $PMTK291,38400*27<CR><LF>//波特率设置
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EB-230 Data Sheet
Ver 1.2
1
PIN Coordinates
Unit:mm
Pin # X Y Pin # X Y
1 0.00 0.00 10 12.50 7.62
2 0.00 1.27 11 12.50 6.35
3 0.00 2.54 12 12.50 5.08
4 0.00 3.81 13 12.50 3.81
5 0.00 5.08 14 12.50 2.54
6 0.00 6.35 15 12.50 1.27
7 0.00 7.62 16 12.50 0.00
8 4.06 10.06 17 9.71 -2.44
9 9.71 10.06 18 2.79 -2.44
TRANSYSTEM INC.
An A
+
supplier of RF microwave & GPS product
s
Ultimate
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EB-230
EB-230 is an ultra miniature 12 x 12 mm
2
GPS engine board. It provides superior
navigation performance under dynamic
conditions in areas with limited sky view like
urban canyons. High sensitivity up to
-158dBm for weak signal operation without
compromising accuracy. EB-230 is your best
choice for embedded applications.
Key Features :
• Small form factor: 12 x 12 x 3 mm
• Lead-Free – RoHS/WEEE compliant
• High sensitivity -158dBm
• Tracks 32-Channel of satellites
• Fast Position Fix
• Low power consumption
PIN Definition :
Applications :
• Handheld devices
• Automotive and Marine Navigation
• Automotive Navigator Tracking
• Emergency Locator
• Geographic Surveying
• Personal Positioning
• Sporting and Recreation
• Embedded applications : PDA, DSC,
Smart phone, UMPC, PND, MP4
EB-230 Data Sheet
Ver 1.2
2
EB-230 Specifications
Specification Description
General
L1 frequcney, C/A code (SPS)
32 independent tracking channels
Sensitivity -158dBm /Tracking; -146dBm /Acquisition
Update Rate Up to 5Hz
Accuracy
Without aid: 3.0m 2D-RMS
<3m CEP (50%) without SA (horizontal)
DGPS (WAAS, EGNOS, MSAS, RTCM): 2.5m
Acquisition (open sky)
Cold Start: 36sec
Warm Start: 33sec
Hot Start: 1sec
Reacquisition < 1sec
Dynamics
Altitude: 18000m (max.)
Velocity: 515m/sec (max.)
Vibration: 4G (max.)
Supply Voltage DC 3.0V
Power Consumption < 30mA @ 3.0V (w/o Active ANT) / Tracking
Backup Battery DC 1.2V ( RTC Vcc )
NMEA Message
NMEA0183 v3.1 baud rate 4800/9600/…/57600, default 9600
Protocol: 3V CMOS/TTL
Selectable Output: GGA, GLL, GSA, GSV, RMC, and VTG
Datum Default WGS-84
Antenna
External Active Antenna
Output Voltage: 3.0 VDC
Serial Interface RS-232, SPI
Operating Temperature -30 to 85℃℃
Storage Temperature -40 to℃ 125℃
Operating Humidity 95%, non condensing≦
Mounting SMT Type, 18 Pin
Dimension 12 x 12 x 3(H) mm
*Specifications subject to change without prior notice.
© TRANSYSTEM INC. all rights reserved.
No.1-2 Li-Hsin Rd.I, Science-Based
Industrial Park, Taiwan, R.O.C.
T: +886-3-5780393 / F: +886-3-5784111
gps.sales@transystem.com.tw
www.transystem.com.tw
EB-230 Data Sheet
Ver 1.2
3
Table of Contents
1 Introduction ............................................................................................... 4
1.1 Key Features ................................................................................... 4
1.2 Applications ..................................................................................... 4
1.3 Look & Feel ..................................................................................... 4
2 Technical Description................................................................................ 5
2.1 Block Diagram ................................................................................. 5
2.2 Pin Definition ................................................................................... 5
2.3 Specification .................................................................................... 6
3 User Interface ........................................................................................... 7
3.1 Protocol ........................................................................................... 7
3.1.1 NMEA Protocol ....................................................................... 7
3.1.2 MTK NMEA Packet Format .................................................... 8
3.1.3 MTK NMEA Packet Protocol .................................................. 8
3.1.4 MTK NMEA Packet List .......................................................... 8
4 Dimension and Package......................................................................... 13
4.1 Mechanical Dimension .................................................................. 13
4.2 Recommend Layout Pattern.......................................................... 13
4.3 Package......................................................................................... 13
5 Application Information ........................................................................... 14
5.1 GPS Antenna Recommendations.................................................. 14
5.2 Application Circuit.......................................................................... 14
5.3 General GPS Receiver User’s Tips ............................................... 15
EB-230 Data Sheet
Ver 1.2
4
1 Introduction
EB-230 is an ultra miniature 12 x12mm
2
GPS engine board. It provides superior
navigation performance under dynamic conditions in areas with limited sky view like
urban canyons. High sensitivity up to -158dBm for weak signal operation without
compromising accuracy. EB-230 is your best choice for embedded applications.
1.1 Key Features
• Small form factor: 12 x 12 x 3 mm
• Lead-Free – RoHS/WEEE compliant
• High sensitivity -158dBm
• Tracks 32-Channel of satellites
• Fast Position Fix, 36/ 33/ 1s for Cold/ Warm/ Hot start
• Low power consumption
1.2 Applications
• Handheld devices
• Automotive and Marine Navigation
• Automotive Navigator Tracking
• Emergency Locator
• Geographic Surveying
• Personal Positioning
• Sporting and Recreation
• Embedded applications such as: PDA, DSC, Smart phone, UMPC, PND, MP4
1.3 Look & Feel
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