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ANTARIS 4
SuperSense
GPS Module
User's Manual Ver 1.03
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Item 1 Date 2007/01/06 Spec reelased New Release Information In Charge Godspeed
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Contents
1. INTRODUCTION........................................................................4 1.1 OVERVIEW......................................................................4 1.2 MAIN FEATURES...............................................................4 2. TECHNICAL SPECIFICATIONS.................................................... 5 BLOCK DIAGRAM ........................................................................5 2.1 2.2 ELECTRICAL CHARACTERISTICS.......................................... 5 2.3 EVIRONMENTAL CHARACTERISTICS..................................... 6 2.4 PHYSICAL CHARACTERISTICS.............................................. 6 2.5 Active antenna..................................................................6 3. MECHANICAL DIMENSIONS...................................................... 7 MG-A1315............................................................................ 7 3.1 4. BOARD CONNECTIONS.............................................................. 8 5. APPLICATIONS.........................................................................10 Appendix A - Data Set...................................................................11
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1. Introduction
1.1. Overview
Modulestek GPS module MG-A1315 is a high sensitivity ultra low power consumption cost efficient, compact size; plug & play GPS module board designed for a broad spectrum of OEM system applications. This product is based on the ANTARISTM4 supersense technology and it will track up to 16 satellites at a time while providing fast time-to-first-fix. Its far reaching capability meets the sensitivity & accuracy requirements of car navigation as well as other location-based applications, such as AVL system. Handheld navigator, PDAs, Wrist Watches, Personal Locators, Toll collection, Fleet Management, pocket PC, or any battery operated navigation system. The MG-A1315 design utilizes the latest surface mount technology and high level circuit integration to achieve superior performance while minimizing dimension and power consumption. This hardware capability combined with software intelligence makes the board easy to be integrated and used in all kinds of navigation applications or products. The module communicates with application system via TTL level with NMEA0183 protocol.
1.2. Main Feature
Built-in high performance ATMEL chipset. 16 channels "All-in-View" tracking. Average Cold Start in 34 seconds. -158 dBm weak signal sensitivity with SuperSenseTM Ultra Low power consumption.(38mA) Cost-optimized architecture (No Flash EPROM) USB Slave V1.1 (V2.0 compatible) Support 1 USB and 2 UART ports 15 A backup current Support of SBAS satellites for navigation Ultra miniature 15 x 13 mm dimension with SMT pad package Full DGPS / WAAS / EGNOS and MSAS support 4Hz position update rate
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2. Technical Specifications
2.1. Block Diagram
2.2. Electrical Characteristics
2.1.1 General Frequency C/A code Channels 2.1.2 Sensitivity Cold Starts: Reacquisition: Tracking&Acquisition: 2.1.3 Accuracy Position Time 2.1.4 Datum Default Other L1, 1575.42 MHz 1.023 MHz chip rate 16
-142dBm -148 dBm -158 dBm
2.5 meters CEP 2.0 m CEP DGPS / WAAS / EGNOS 50ns RMS
WGS-84 Support different datum by request
2.1.5 Acquisition Rate (Open sky, stationary requirements) Hot start <3.5 sec, average Warm start 33 sec, average
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Cold start Reacquisition 2.1.6 Dynamic Conditions Altitude Velocity 2.1.7 Power Main power input Supply Current Backup Power Backup Current 2.1.8 Serial Port Electrical interface Protocol message Default NMEA 34 sec, average < 1s
18,000 meters 515 m/s
3.3 5% VDC input. MG-A1315 < 38mA (1.5 mA in power saving mode) 1.5~3.6V 5A typical
one full duplex serial communication, TTL interface NMEA, ublox binary (UBX), RTCM. hardware baud rate setting UART1/USB port: 9600 baud, NMEA UART2 port: 38400 baud, UBX
2.3. Environmental Characteristics
Operating temperature range Storage temperature range -40 deg. C to +85 deg. C -40 deg. C to +100 deg .C
2.4. Physical Characteristics
Dimension: MG-A02S 15.0 x 13.0 x 2.2 (mm)
2.5. Active antenna
15~ 25 dB Gain recommended
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3. Mechanical Dimensions
3.1. MG-A1315
Figure 1: Board dimensions (in mm)
Figure 2: Board connections and placement diagram.
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4. Board connections
Pin 1 RXB 2 TXB 3 PPS 4 TXA 5 RXA
Name
Type I O O O I O I/O I/O O I I I I I NC I O G I G G G Serial Port B Serial Port B
Description
One Pulse Per Second Serial Port A Serial Port A Fix Status LED, if not used keep floating USB DM USB DP Indicates power state of RF part External Interrupt Pin Backup Voltage Supply, 1.5VDC~ 3.6VDC DC Supply Voltage Input DC +3.3V+-5% GPSMODE5 configuration, if not used keep floating GPSMODE6 configuration, if not used keep floating Not connected Reset, Active Low Supply Antenna Bias Voltage Reference Ground GPS Signal Input, 50 ohm @1.57542GHz Reference Ground Reference Ground Reference Ground
6 STATUS_LED 7 USB_DM 8 USB_DP 9 RFPWRUP 10 EXTINT0 11 V_BAT 12 VCC 13 GPSMODE5 (see table 1, 2) 14 GPSMODE6 (see table 1, 2) 15 NC 16 NRESET 17 VCC_RF 18 GND 19 RF_IN 20 GND 21 GND 22 GND
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Baud Rate Setting
GPSMODE5/GPSMODE6 Configuration For GPSMODE5 and GPSMODE6, it represents serial I/O configuration (Baud rate/Output NMEA Sentences configuration). Please refer to Table 1 for detailed description
GPSMODE6 0 0 1 (default) GPSMODE5 0 1 0 (default) UART1/USB Protocol/Baud NMEA/19200 NMEA/4800 NMEA/9600 UART2 Protocol/Baud UBX/57600 UBX/19200 UBX/38400 Messages High (see table 2) Low (see table 2) Medium (see table 2)
Table 1 Messages
High NMEA port Low Medium (default) GGA, GLL, GSA, GSV, RMC, VTG, ZDA GGA, GLL, GSA, GSV, RMC, GGA, RMC VTG, ZDA, GRS, GST, proprietary PUBX00, PUBX03, PUBX04 UBX-NAV, UBX-MON UBX-MON
UBX port
UBX-MON
Table 2
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5. Applications
MG-A1315 module board receiver is a high performance, ultra low power consumption, plug &play product. These applications are as follow. Car Navigation Wrist Watch Solar Operated Device Marine Navigation Fleet Management AVL and Location-Based Services Radar detector with GPS function Hand-Held Device for Personal Positioning and Navigation Ideal for PDA, Pocket PC and Other Computing Devices at GPS Application
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Appendix A: Data Set 1. GGA data set
GGA--- Global Positioning System Fixed Data Table 2 contains the values for the following example: $GPGGA,161229.487,3723.24751,N,12158.34161,W,1,07,1.0,9.0,M, , , ,0000*18 Name Message ID UTC Position Latitude N/S Indicator Longitude E/W Indicator Example $GPGGA 161229.487 3723.24751 N 12158.34161 W Units Description GGA protocol header hhmmss.sss ddmm.mmmmm N=north or S=south dddmm.mmmmm E=east or W=west 0 = invalid 1 = GPS fix (SPS) 2 = DGPS fix 3 = PPS fix 4 = Real Time Kinematic 5 = Float RTK 6 = estimated (dead reckoning) 7 = Manual input mode 8 = Simulation mode Range 0 to 12 Horizontal Dilution of Precision meters meters meters M 0000 *18 End of message termination meters second Null fields when DGPS is not used
Position Fix Indicator 1
Satellites Used HDOP MSL Altitude Units Geoid Separation Units Age of Diff. Corr. Diff. Ref. Station ID Checksum
07 1.0 9.0 M
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2. GLL data set
GLL--- Geographic Position - Latitude/Longitude Table 4 contains the values for the following example: $GPGLL,3723.24751,N,12158.34161,W,161229.487,A*2C Name Message ID Latitude N/S Indicator Longitude E/W Indicator UTC Position Status Checksum Example $GPGLL 3723.24751 N 12158.34161 W 161229.487 A *2C End of message termination Units Description GLL protocol header ddmm.mmmmm N=north or S=south dddmm.mmmmm E=east or W=west hhmmss.sss A=data valid or V=data not valid
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3. GSA data set
GSA---GNSS DOP and Active Satellites Table 5 contains the values for the following example: $GPGSA,A,3,07,02,26,27,09,04,15, , , , , ,1.8,1.0,1.5*33 Name Message ID Mode 1 Example $GPGSA A Units Description GSA protocol header M Manual- forced to operate in 2D or 3D mode A Automatic-allowed to automatically switch 2D/3D 1 Fix not available 2 2D 3 3D Sv on Channel 1 Sv on Channel 2 Sv on Channel 12 1.8 1.0 1.5 *33 End of message termination Position Dilution of Precision Horizontal Dilution of Precision Vertical Dilution of Precision
Mode 2
3
Satellite Used in solution Satellite Used in solution Satellite Used PDOP HDOP VDOP Checksum
07 02
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4. GSV data set
GSV---GNSS Satellites in View Table 8 contains the values for the following example: $GPGSV,2,1,07,07,79,048,42,02,51,062,43,26,36,256,42,27,27,138,42*71 $GPGSV,2,2,07,09,23,313,42,04,19,159,41,15,12,041,42*41 Name Message ID Message Number1 Satellites in View Satellite ID Elevation Azimuth SNR (C/No) Satellite ID Elevation Azimuth SNR (C/No) Checksum Example $GPGSV 1 07 07 79 048 42 27 27 138 42 *71 Degrees Degrees DBHz Degrees Degrees DBHz Channel 1 (Maximum 90) Channel 1 (True, Range 0 to 359) Range 0 to 99, null when not tracking Channel 4 (Range 1 to 32) Channel 4 (Maximum 90) Channel 4 (True, Range 0 to 359) Range 0 to 99, null when not tracking End of message termination Channel 1 (Range 1 to 32) Units Description GSV protocol header Range 1 to 3 Range 1 to 3
Number of Messages1 2
Depending on the number of satellites tracked multiple messages of GSV data may be required.
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5. RMC data set
RMC---Recommended Minimum Specific GNSS Data Table 9 contains the values for the following example: $GPRMC,161229.487,A,3723.24751,N,12158.34161,W,0.13,309.62,120598, ,*10 Name Message ID UTC Position Status Latitude N/S Indicator Longitude E/W Indicator Speed Over Ground Date Magnetic Variation Checksum *10 End of message termination Example $GPRMC 161229.487 A 3723.24751 N 12158.34161 W 0.13 120598 degrees knots degrees True ddmmyy E=east or W=west (Not shown) Units Description RMC protocol header hhmmss.sss A=data valid or V=data not valid ddmm.mmmmm N=north or S=south dddmm.mmmmm E=east or W=west
Course Over Ground 309.62
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6. VTG data set
VTG---Course Over Ground and Ground Speed Table 10 contains the values for the following example: $GPVTG,309.62,T, ,M,0.13,N,0.2,K*6E Name Message ID Course Reference Course Reference Speed Units Speed Units Checksum M 0.13 N 0.2 K *6E End of message termination km/hr knots Example $GPVTG 309.62 T degrees degrees Units Description VTG protocol header Measured heading True Measured heading Magnetic Measured horizontal speed Knots Measured horizontal speed Kilometer per hour
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7. ZDA data set
ZDA---Contains information on UTC time, the data and local time An example of a ZDA data set: $GPZDA,130305.2,20,06,2001,00,00,*57 Name Message ID UTC Day Month Year Local Zone hour Local Zone minutes Checksum Example $GPZDA 130305.2 20 06 2001 00 00 *57 Units Description ZDA protocol header UTC Time: 13h 03min 05.2sec Day(00 ... 31) Month(1 ... 12) Year Reserved for data on local time(h) Reserved for data on local time(min) Checksum End of message termination
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