C3-370C

C3-370C-Jnavi High-Performance GPS Receiver C3-370C Jnavi SPECSHEET JCOM MODEL NAME GR – C3-370C - XXXX - T - P CODE NO. CUSTOMER MODEL NAME C3-370C INVESTIGATION INSPECTION APPROVAL 200 . . . 200 . . . 200 . . . 2005. . . J communications co., Ltd. J communications co., Ltd. 1/20 Ver: 1.0 www.jcomco.com C3-370C-Jnavi High-Performance GPS Receiver J communications co., Ltd. 2/20 Ver: 1.0 www.jcomco.com Contents 1. Functional Description 1.1 Features 1.2 Block Diagram 1.3 Receiver Unit Specifications 1.4 Protocols 2. Interface Specification 2.1 Pin Description 2.2 I/O Pin Command Level 2.3 Serial Interfaces (User programmable setting command) 3. Electrical Specification 3.1 Absolute Maximum Ratings 3.2 Operating Conditions 3.2.1 DC Characteristics 3.2.2 AC Characteristics 3.2.3 Active Antenna Selection(Recommend) 3.2.4 RF Input Impedance 4. Performance Specification 4.1 3D Tracking Sensitivity (Level Decrease) 4.2 3D Re-Tracking Sensitivity (Level Increase) 4.3 Temperature & Sensitivity 5. Mechanical Dimension & Pin Description 6. Packing Description C3-370C-Jnavi High-Performance GPS Receiver 1. Functional Description 1.1 Features Fully self-contained GPS receiver Fully shield Full implementation of SiRFstarTMIII GPS architecture „ GSC3F(High Performance GPS Single Chip) GPS DSP with integrated real time clock(RTC) ARM7TDMI CPU „ 4Mbit FLASH memory „ Low noise amplifiers and SAW filters. „ TCXO, Reset & Regulator etc „ Built-In Back-up Battery „ GPS receiver With Patch Antenna „ Selectable internal/external RF connector „ Patch Antenna Size : 25(w)mm X 25(d)mm X 2(h)mm „ Size : 30.0(w)mm X 27.0(d)mm X 7.0(h)mm „ Weight : 10.5 grams 1.2 Block Diagram EXT ANT. LNA J communications co., Ltd. 3/20 Ver: TCXO SAW Filter Line Filter 1.0 www.jcomco.com GSC3F RESET IC Regulator IC RTC X-TAL Back-UP C3-370C-Jnavi High-Performance GPS Receiver J communications co., Ltd. 4/20 Ver: 1.0 www.jcomco.com 1.3 Receiving Unit Specifications Receiver type : L1 frequency, C/A Code, 20-channel Max up-date rate : 1 sec Accuracy (SA off) : Position < 10m 3DRMS 3D Tracking Sensitivity : -156dBm at the receiver input(typical) Operational Limits : Altitude < 18,000m (60,000ft) Velocity < 515m/s (1,000knots) Time To First Fix (TTFF) a) Cold Start 60sec (typical) In a ‘Cold Start’ scenario, the receiver has no knowledge of position, time or the satellite constellation. The receiver starts to search for signals blindly. Cold start time is the longest startup for this module b) Warm Start 40sec (typical) In a ‘Warm Start’ scenario, due to a backup battery the receiver knows its last poison, the approximate time and the constellation almanac. Thanks to this it can quickly acquire satellites and gat a position fix faster then in ‘Cold Start’ mode. c) Hot Start < 3sec (typical) In a ‘Hot Start’ scenario, the receiver has been powered off for less then 2 hours since the last valid navigation solution. The GPS uses its last Ephemeris data to calculate a position fix. Re-acquisition time 5sec typical (within 60sec GPS signal obstruction) 1.4 Protocols NMEA 0183 (default) 9600bps Activated message : GGA,GSA,GSV, RMC all with checksum enabled User programmable setting for baud rate, NMEA & Interval time by user define message setting Command. (see 2.3 Serial Interface Setting) C3-370C-Jnavi High-Performance GPS Receiver J communications co., Ltd. 5/20 Ver: 1.0 www.jcomco.com Output Messages Table 1-1 lists each of the NMEA output messages specifically developed and defined by SiRF for use within SiRF products. Table 1-1 NMEA Output Message Option Description GGA Time, position and fix type data. GLL Latitude, longitude, UTC time of position fix and status. GSA GPS receiver operating mode, satellites used in the position solution, and DOP values. GSV The number of GPS satellites in view satellite ID numbers, elevation, azimuth, and SNR values RMC Time, date, position, course and speed data. VTG Course and speed information relative to the ground. 150 OK to send message. A full description and definition of the listed NMEA messages are provided by the next sections of this chapter. Table 1-2 provides a summary of supported SiRF NMEA output messages by the specific SiRF platforms. Table 1-2 Supported NMEA Message SiRF Software Options GGA Yes GLL Yes GSA Yes GSV Yes RMC Yes VTG Yes C3-370C-Jnavi High-Performance GPS Receiver J communications co., Ltd. 6/20 Ver: 1.0 www.jcomco.com GGA ―Global Positioning System Fixed Data Table 1-3 contains the values for the following example: $GPGGA, 161229,487,3723,2475,N,12158,3416,W,1.07,1.0,9.0,M….0000*18 Table 1-3 GGA Data Format Name Example Units Description Message ID $GPGGA GGA protocol header UTC Time 161229,487 hhmmss,sss Latitude 3723,2475 ddmm,mmmm N/S Indicator N N-north or s-south Longitude 12158,3416 dddmm,mmmm E/W Indicator W E=east or W=west Position Fix Indicator I See Table 1-4 Satellites Used 07 Range 0 to 12 HDOP 1.0 Horizontal Dilution of Precision MSL Altitude 9.0 Meters Units M Meters Geoid Separation Meters Units M Meters Age of Diff. Corr. Second Null fields when DGPS is not used Diff. Ref. Station ID 0000 Checksum *18 End of message termination Table 1-4 Position Fix Indicator Value Description 0 Fix not available or invalid 1 GPS SPS Mode, fix valid 2 Differential GPS, SPS Mode, fix valid 3-5 Not supported 6 Dead Reckoning Mode, fix valid Note – A valid position fix indicator is derived from the SiRF Binary M.I.D. 2position mode1 See the SiRF Binary Reference Manual C3-370C-Jnavi High-Performance GPS Receiver J communications co., Ltd. 7/20 Ver: 1.0 www.jcomco.com GLL-Geographic Position-Latitude/Longitude Table 1-5 contains the values for following example: $GPGLL, 3723.2475,N,12158.3416,W,161229.487,A,A*41 Table 1-5 GLL Data Format Name Example Units Description Message ID $GPGLL GLL protocol header Latitude 3723.2475 ddmm.mmmm N/S Indicator N N=north or S=south Longitude 12158.3416 dddmm.mmmm E/W Indicator W E=east or W=west UTC Time 161229.487 hhmmss.sss Status A A= data valid or V=data not valid Mode A A=Autonomous, D=DGPS, E=DR Checksum *41 End of message termination C3-370C-Jnavi High-Performance GPS Receiver J communications co., Ltd. 8/20 Ver: 1.0 www.jcomco.com GSA-GNSSDOP and Active Satellites Table 1-6 contains the values for the following example: $GPGSA,A,3, 07,02,26,27,09,04,15,,,,,,,,1.8,1.0,1.5*33 Table 1-6 GSA Data Format Name Example Units Description Message ID $GPGSA GSA protocol header Mode 1 A See Table 1-7 Mode 2 3 See Table 1-8 Satellite Used 1 07 Sv on Channel 1 Satellite Used 1 02 Sv on Channel 2 …. …. Satellite Used 1 Sv on Channel 12 PDOP 1.8 Position Dilution of Precision HDOP 1.0 Horizontal Dilution of Precision VDOP 1.5 Vertical Dilution of Precision Checksum *33 End of message termination 1. Satellite used in solution Table 1-7 Mode 1 Value Description M Manual-forced to operate in 2D or 3D mode A 2Dautomatic-allowed to automatically switch 2D/3D Table 1-8 Mode 2 Value Description 1 Fix not Available 2 2D(<4SV’s used) 3 3D(>3SV’s used) C3-370C-Jnavi High-Performance GPS Receiver J communications co., Ltd. 9/20 Ver: 1.0 www.jcomco.com GSV-GNSS Satellite in View Table 1-9 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 Table 1-9 GSV Data Format Name Example Units Description Message ID $GPGSV GSV protocol header Number of Messages 1 2 Range 1 to 3 Message Number 1 1 Range 1 to 3 Satellites in View 07 Satellite ID 07 Channel 1 (Range 1 to 32) Elevation 79 degrees Channel 1 (Maximum 90) Azimuth 048 degrees Channel 1 (True, Range 0 to 359) SNR(c/No) 42 dBHz Range 0 to 99, null when not tracking …. …. Satellite ID 27 Channel 4 (Range 1 to 32) Elevation 27 degrees Channel 4 (Maximum 90) Azimuth 138 degrees Channel 4 (True, Range 0 to 359) SNR(C/No) 42 dBHz Range 0 to 99, null when not tracking Checksum *71 End of message termination 1. Depending on the number of satellites tracked multiple messages of GSV data may be required. C3-370C-Jnavi High-Performance GPS Receiver J communications co., Ltd. 10/20 Ver: 1.0 www.jcomco.com RMC-Recommended Minimum Specific GNSS Data Table 1-11 contains the values for the following example: $GPRMC,161229.487,A,3723.2475,N,12158.3416,W,0.13,309.62,120598, ,*10 Table 1-11 RMC Data Format Name Example Units Description Message ID $GPRMC RMC protocol header UTC Time 161229.487 hhmmss.mmmm Status A A=data valid or V=data not valid Latitude 3723.2475 ddmm.mmmm N/S Indicator N N=north or S=south Longitude 12158.3416 ddmm.mmmm E/W Indicator W E=east or W=west Speed over Ground 0.13 knots Course over Ground 309.62 degrees True Date 120598 ddmmyy Magnetic Variation degrees E=east or W=west Checksum *10 End of message termination 1. A valid status is derived from the SiRF Binary. M.I.D 2 position mode 1. See the SiRF Binary Reference Manual. 2. SiRF Technology Inc. dose not support magnetic declination. All “course over ground” data are geodetic WGS84 directions. C3-370C-Jnavi High-Performance GPS Receiver J communications co., Ltd. 11/20 Ver: 1.0 www.jcomco.com VTG-Course Over Ground and Ground Speed Table 1-12 contains the values for the following example: $GPVTG,309.62,T, ,M,0.13,N,0.2,K,A*23 table 1-12 VTG Data Format Name Example Units Description Message ID $GPVTG VTG protocol header Course 309.62 degrees Measured herding Reference T True Course degrees Measured heading Reference M Magnetic 1 Speed 0.13 knots Measured Horizontal speed Units N knots Speed 0.2 km/hr Measured horizontal speed Units K Kilometers per hour Mode A A=Autonomouse, D=DGPS, E=DR Checksum *23 End of message termination 1. SiRF Technology Inc. dose not support magnetic declination. All “course over ground” data are geodetic WGS84 directions. C3-370C-Jnavi High-Performance GPS Receiver 2. Interface Specification 2.1. Pin Description Pin no Name Pin Description I/O Note 1 EN Supply regulator enable I Open or low then enable 2.0v~VCC then disable 2 VCC(5.0V) Supply Voltage I Used 3 TXA Serial TX Port A O Used 4 RXA Serial RX Port A I Used 5 GND Ground 6 BOOT Module Boots Port 5.0V : Boot ON N.C : Boot OFF I Module boots into special debug Mode if VCC during reset 2.2 I/O Pin Commend Level RXA Input Level TXA Output Level J communications co., Ltd. 12/20 Ver: 1.0 www.jcomco.com C3-370C-Jnavi High-Performance GPS Receiver J communications co., Ltd. 13/20 Ver: 1.0 www.jcomco.com 2.3 Serial Interfaces Setting MESSAGE COMMAND COLD START $PSRF101,0,0,0,000,0,0,12,4*10 WARM START $PSRF101,0,0,0,000,0,0,12,2*16 HOT START $PSRF101,0,0,0,000,0,0,12,1*15 FACTORY RESET $PSRF101,0,0,0,000,0,0,12,8*1C Customer Define Message Setting Command Table 2.3 contains the values for the following example: $PSRF201,NMEA9600,NULL38400,GGA1,GLL0,GSA1,GSV1,RMC1,VTG0,USER0*0D 2.3 Data Format Table Name Example Units Description Message ID $PSRF Protocol Header 201 Measured heading Protocol(Port A) NMEA Data Format NULL, NMEA, Jcom(Customer Dependency) Baudrate(Port A) 9600 bps 4800, 9600, 19200, 38400, 57600 Protocol(Port B) NULL Data Format NULL, NMEA, Jcom(Customer Dependency) Baudrate(Port B) 38400 bps 4800, 9600, 19200, 38400, 57600 GGA Interval Time GGA1 sec GGA Data Output Interval Time 1sec (0∼10sec Selectable) GLL Interval Time GLL0 sec GLL Data Output Off (0∼10sec Selectable) GSA Interval Time GSA1 sec GSA Data Output Interval Time 1sec (0∼10sec Selectable) GSV Interval Time GSV1 sec GSV Data Output Interval Time 1sec (0∼10sec Selectable) RMC Interval Time RMC1 sec RMC Data Output Interval Time 1sec (0∼10sec Selectable) VTG Interval Time VTG0 sec VTG Data Output Off(0∼10sec Selectable) USER Interval Time USER0 Customer Option(Default 0) Checksum *0D See Below*1 End of message termination 1. Checksum Delimiter and Field: *hh hh = The absolute value calculated by exclusive-OR'ing the 8 data bits (no start bits or stop bits) of each char in the Sentence, between, but excluding "$" and "*". The hexadecimal value of the most significant and least significant 4 bits of the result are converted to two ASCII characters (0-9,A-F) for transmission. The most significant character is transmitted first. C3-370C-Jnavi High-Performance GPS Receiver J communications co., Ltd. 14/20 Ver: 1.0 www.jcomco.com 3. Electrical Specification 3.1 Absolute Maximum Ratings Parameter Min Max Unit Power supply voltage(VCC) 3.6 5.5 V Serial port Input pin voltage -0.3 5.0 V Storage temperature -20 +80 ℃ Warning – Stressing the device beyond the “Absolute Maximum Ratings” may cause permanent damage. These are stress ratings only. Operation beyond “Operating conditions” is not recommended and extended exposure beyond the “Operating condition” may affect device reliability. 3.2 Operating Conditions 3.2.1 DC Characteristics ( Test Temperature : 25℃) Parameter Condition Min Typical Max Unit Operating supply voltage VCC 3.6 5.0 5.5 V Operating supply ripple voltage 50 mVpp Sustained supply current VCC=5.0V 80 85 90 mA Peak supply current VCC=5.0V 85 90 95 mA RXA TTL H Level VCC=5.0V 2.1 VCC V RXA TTL L Level VCC=5.0V 0 0.9 V TXA TTL H Level VCC=5.0V 2.1 2.8 V TXA TTL L Level VCC=5.0V 0 0.8 V External Antenna Output Voltage VCC=5.0V 2.7 2.8 2.9 V External Antenna Output Current VCC=5.0V - - 20 mA Operating temperature * VCC=5.0V -20 +25 +60 ℃ * Operating Temperature GPS DEVICE : -40℃ ~ +80℃ BACK-UP BATTERY : -20℃ ~ +60℃ (Lithium-Ion Rechargeable Battery) C3-370C-Jnavi High-Performance GPS Receiver J communications co., Ltd. 15/20 Ver: 1.0 www.jcomco.com 3.2.2 AC Characteristics ( Test Temperature : 25℃ VCC = 5.0V Internal Antenna Input : Conducted ) Parameter Condition Min Typical Max Unit Tracking Sensitivity (C/N) 3D (C/N avg. 13dBHz) -156 dBm Re-acquisition Sensitivity (C/N) 3D (C/N avg. 16dBHz) -153 dBm Cold start Sensitivity (C/N) 3D (SV 9EA in view) -135 dBm Cold start time(TTFF) -126 dBm(2D) (SV 9EA) 60 sec Hot start time -126 dBm(2D) (SV 9EA) 1 sec Re-acquisition time (5 sec) -126 dBm(3D) (SV 9EA) 3 sec Re-acquisition time (60 sec) -126 dBm(3D) (SV 9EA) 3 sec Position error (Latitude, Longitude) -126 dBm(SV 9EA in View) 10 m Position error (Elevation) -126 dBm(SV 9EA in View) 50 m External ANT Connector Impedance 40 50 60 Ω 3.2.3 Active Antenna Selection Guide Recommend Parameter Condition Frequency 1575.42MHz Polarization RHCP V.S.W.R Less than 2.0 Impedance 50Ω LNA Gain 26dB±2dB Noise Figure 1.5dB(Max) Axial Ratio 3dB(Max) Band Attenuation 20dB(Min) @FO±50MHz Voltage DC 3V(±10%) Current 20mA(Max) C3-370C-Jnavi High-Performance GPS Receiver 3.2.4 RF Input Impedance J communications co., Ltd. 16/20 Ver: 1.0 www.jcomco.com C3-370C-Jnavi High-Performance GPS Receiver 4 Performance Specification 3D Tracking Sensitivity 3D Re-Tracking Sensitivity 0 5 10 15 20 25 30 35 40 45 50 55 -1 16 -1 20 -1 24 -1 28 -1 32 -1 36 -1 40 -1 44 -1 48 -1 52 -1 56 ← Input Level [dBm] C /N [d B /H z] Temperature & Sensitivity (Input : -130dBm) 30 31 32 33 34 35 36 37 38 39 40 -4 0 -3 0 -2 0 -1 0 0 10 20 30 40 50 60 70 80 90 Temperature [℃] Se ns iti vi ty [d B -H z] J communications co., Ltd. 17/20 Ver: 1.0 www.jcomco.com 0 10 20 30 40 50 60 -1 16 -1 20 -1 24 -1 28 -1 32 -1 36 -1 40 -1 44 -1 48 -1 52 -1 56 Input Level [dBm] → C /N [d B /H z] C3-370C-Jnavi High-Performance GPS Receiver 5. Mechanical Dimension & Pin Description J communications co., Ltd. 18/20 Ver: 1.0 www.jcomco.com C3-370C-Jnavi High-Performance GPS Receiver ※ Maker : Yeonho Electronics J communications co., Ltd. 19/20 Ver: 1.0 www.jcomco.com C3-370C-Jnavi High-Performance GPS Receiver 6. Packing Description J communications co., Ltd. 20/20 Ver: 1.0 www.jcomco.com JCOM MODEL NAME CUSTOMER MODEL NAME User programmable setting for baud rate, NMEA & Interval tim Output Messages Option Description Message Name Value GLL-Geographic Position-Latitude/Longitude GSA-GNSSDOP and Active Satellites GSV-GNSS Satellite in View Name RMC-Recommended Minimum Specific GNSS Data VTG-Course Over Ground and Ground Speed Customer Define Message Setting Command 6. Packing Description