GPS04 Features z GPS04 65 channel engine for high performance acquisition z GPS L1 C/A Code z Perform 8 million time-frequency hypothesis testing per second z Open sky hot start 2 sec z Open sky cold start 33 sec z Signal detection better than –160dBm z Acquisition sensitivity –145dBm z Accuracy 5m CEP z Tracking current < 50mA z Support active antenna z Small size 25.4 x 25.4 x 3.2 mm Low Cost Very High Performance SMD GPS Module The GPS04is a small form factor GPS module solution intended for a broad range of Original Equipment Manufacturer (OEM) products, where fast and easy system integration and minimal development risk is required. The GPS04GPS receiver’s -160dBm tracking sensitivity allows continuous position coverage in nearly all application environments. Its high performance search engine is capable of testing 8,000,000 time-frequency hypotheses per second, offering industry-leading signal acquisition and TTFF speed. The receiver is optimized for applications requiring high performance, low power, and low cost; suitable for a wide range of OEM configurations including mobile phone, PND, asset tracking, and vehicle navigation products. (LxWxH) The very small 25.4mm x 25.4mm form factor and the SMT pads allow standard surface mount device pick-and-place process in fully automated assembly process; enabling high-volume, very cost-efficient production. Tel: +86-755-82973805 Fax: +86-755-82973550 E-mail: [email protected] http://www.hoperf.com GPS04 TECHNICAL SPECIFICATIONS Receiver Type 65 parallel channel, L1 C/A code Accuracy Position 5m CEP Velocity 0.1m/sec 1PPS Timing +/-1us Startup Time 2 second hot start under open sky 33 second cold start under open sky (average) Reacquisition 2s Sensitivity -145dBm acquisition -160dBm tracking Update Rate 1Hz Dynamics 2 4G (39.2m/sec ) Operational Limits Altitude < 18,000m or velocity < 515m/s (COCOM limit, either may be exceeded but not both) Serial Interface 3.3V LVTTL level Protocol NMEA-0183 V3.01 GPGGA, GPGLL, GPGSA, GPGSV, GPRMC, GPVTG*2 Default 9600 baud rate, 8, N, 1 Datum Default WGS-84 User definable Input Voltage 3.3V DC +/-5% Input Current ~70mA acquisition ~50mA tracking Dimension 25.4mm L x 25.4mm W x 3.2mm H Weight: 5g Operating Temperature o o -40 C ~ +85 C Storage Temperature -55 ~ +100oC Humidity 5% ~ 95% Tel: +86-755-82973805 Fax: +86-755-82973550 E-mail: [email protected] http://www.hoperf.com GPS04 BLOCK DIAGRAM RX 0 TX 0 XN203 RFIN GPS RF LNA Front END RX1 GPS BaseBand TX1 3.3V SAW TCXO V_ANT 1.2 V LDO RTC Xtal V_Bat PPS VCC_RF Module block schematic ANTENNA The GPS04module is designed to work active antenna. Recommended active antenna should have gain of 20 ~ 30dB and noise figure less than 1.2dB. PIN Assignment 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Tel: +86-755-82973805 GND GND ANT_IN GND GND GND V_ANT GND VCC_RF GND V_BAT RESET NC NC NC NC NC NC PPS GND Fax: +86-755-82973550 XN934D GND NC NC RX1 TX1 TX0 RX0 NC GND VCC 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 E-mail: [email protected] http://www.hoperf.com GPS04 PIN Description NC Tel: +86-755-82973805 No Connection Fax: +86-755-82973550 E-mail: [email protected] http://www.hoperf.com GPS04 RECOMMENDED PCB FOOTPRINT Tel: +86-755-82973805 Fax: +86-755-82973550 E-mail: [email protected] http://www.hoperf.com GPS04 NMEA Messages The serial interface protocol is based on the National Marine Electronics Association’s NMEA 0183 ASCII interface specification. This standard is fully define in “NMEA 0183, Version 3.01” The standard may be obtained from NMEA, www.nmea.org GGA - Global Positioning System Fix Data Time, position and fix related data for a GPS receiver. Structure: $GPGGA,hhmmss.sss,ddmm.mmmm,a,dddmm.mmmm,a,x,xx,x.x,x.x,M,,,,xxxx*hh<CR><LF> 1 2 3 4 5 6 7 8 9 10 11 Example: $GPGGA,111636.932,2447.0949,N,12100.5223,E,1,11,0.8,118.2,M,,,,0000*02<CR><LF> Field 1 Name UTC Time Example 111636.932 2 Latitude 2447.0949 3 4 N/S Indicator Longitude N 12100.5223 5 6 E/W Indicator GPS quality indicator E 1 7 8 9 10 Satellites Used HDOP Altitude DGPS Station ID 11 0.8 108.2 0000 11 Checksum 02 Description UTC of position in hhmmss.sss format, (000000.000 ~ 235959.999) Latitude in ddmm.mmmm format Leading zeros transmitted Latitude hemisphere indicator, ‘N’ = North, ‘S’ = South Longitude in dddmm.mmmm format Leading zeros transmitted Longitude hemisphere indicator, 'E' = East, 'W' = West GPS quality indicator 0: position fix unavailable 1: valid position fix, SPS mode 2: valid position fix, differential GPS mode 3: GPS PPS Mode, fix valid 4: Real Time Kinematic. System used in RTK mode with fixed integers 5: Float RTK. Satellite system used in RTK mode. Floating integers 6: Estimated (dead reckoning) Mode 7: Manual Input Mode 8: Simulator Mode Number of satellites in use, (00 ~ 12) Horizontal dilution of precision, (00.0 ~ 99.9) mean sea level (geoid), (-9999.9 ~ 17999.9) Differential reference station ID, 0000 ~ 1023 NULL when DGPS not used Note: The checksum field starts with a ‘*’ and consists of 2 characters representing a hex number. The checksum is the exclusive OR of all characters between ‘$’ and ‘*’. Tel: +86-755-82973805 Fax: +86-755-82973550 E-mail: [email protected] http://www.hoperf.com GPS04 GLL – Latitude/Longitude Latitude and longitude of current position, time, and status. Structure: $GPGLL,ddmm.mmmm,a,dddmm.mmmm,a,hhmmss.sss,A,a*hh<CR><LF> 1 2 3 4 5 67 8 Example: $GPGLL,2447.0944,N,12100.5213,E,112609.932,A,A*57<CR><LF> Field 1 Name Latitude Example 2447.0944 2 N/S Indicator N 3 Longitude 12100.5213 4 E/W Indicator E 5 UTC Time 112609.932 6 7 Status Mode Indicator A A 8 Checksum 57 Tel: +86-755-82973805 Description Latitude in ddmm.mmmm format Leading zeros transmitted Latitude hemisphere indicator ‘N’ = North ‘S’ = South Longitude in dddmm.mmmm format Leading zeros transmitted Longitude hemisphere indicator 'E' = East 'W' = West UTC time in hhmmss.sss format (000000.000 ~ 235959.999) Status, ‘A’ = Data valid, ‘V’ = Data not valid Mode indicator ‘N’ = Data not valid ‘A’ = Autonomous mode ‘D’ = Differential mode ‘E’ = Estimated (dead reckoning) mode ‘M’ = Manual input mode ‘S’ = Simulator mode Fax: +86-755-82973550 E-mail: [email protected] http://www.hoperf.com GPS04 GSA – GNSS DOP and Active Satellites GPS receiver operating mode, satellites used in the navigation solution reported by the GGA or GNS sentence and DOP values. Structure: $GPGSA,A,x,xx,xx,xx,xx,xx,xx,xx,xx,xx,xx,xx,xx,x.x,x.x,x.x*hh<CR><LF> 1 2 3 3 3 3 3 3 3 3 3 3 3 3 4 5 6 7 Example: $GPGSA,A,3,05,12,21,22,30,09,18,06,14,01,31,,1.2,0.8,0.9*36<CR><LF> Field 1 Name Mode 2 Mode 3 Satellite used 1~12 4 5 6 7 PDOP HDOP VDOP Checksum Tel: +86-755-82973805 Example A Description Mode ‘M’ = Manual, forced to operate in 2D or 3D mode ‘A’ = Automatic, allowed to automatically switch 2D/3D 3 Fix type 1 = Fix not available 2 = 2D 3 = 3D 05,12,21,22,30 Satellite ID number, 01 to 32, of satellite used in solution, ,09,18,06,14,0 up to 12 transmitted 1,31,, 1.2 Position dilution of precision (00.0 to 99.9) 0.8 Horizontal dilution of precision (00.0 to 99.9) 0.9 Vertical dilution of precision (00.0 to 99.9) 36 Fax: +86-755-82973550 E-mail: [email protected] http://www.hoperf.com GPS04 GSV – GNSS Satellites in View Number of satellites (SV) in view, satellite ID numbers, elevation, azimuth, and SNR value. Four satellites maximum per transmission. Structure: $GPGSV,x,x,xx,xx,xx,xxx,xx,…,xx,xx,xxx,xx *hh<CR><LF> 1 2 3 4 5 6 7 4 5 6 7 8 Example: $GPGSV,3,1,12,05,54,069,45,12,44,061,44,21,07,184,46,22,78,289,47*72<CR><LF> $GPGSV,3,2,12,30,65,118,45,09,12,047,37,18,62,157,47,06,08,144,45*7C<CR><LF> $GPGSV,3,3,12,14,39,330,42,01,06,299,38,31,30,256,44,32,36,320,47*7B<CR><LF> Field 1 2 3 4 Name Number of message Sequence number Satellites in view Satellite ID Example 3 1 12 05 5 6 7 Elevation Azimuth SNR 54 069 45 8 Checksum 72 Tel: +86-755-82973805 Description Total number of GSV messages to be transmitted (1-3) Sequence number of current GSV message Total number of satellites in view (00 ~ 12) Satellite ID number, GPS: 01 ~ 32, SBAS: 33 ~ 64 (33 = PRN120) Satellite elevation in degrees, (00 ~ 90) Satellite azimuth angle in degrees, (000 ~ 359 ) C/No in dB (00 ~ 99) Null when not tracking Fax: +86-755-82973550 E-mail: [email protected] http://www.hoperf.com GPS04 RMC – Recommended Minimum Specific GNSS Data Time, date, position, course and speed data provided by a GNSS navigation receiver. Structure: $GPRMC,hhmmss.sss,A,dddmm.mmmm,a,dddmm.mmmm,a,x.x,x.x,ddmmyy,,,a*hh<CR><LF> 1 2 3 4 5 6 7 8 9 10 11 Example: $GPRMC,111636.932,A,2447.0949,N,12100.5223,E,000.0,000.0,030407,,,A*61<CR><LF> Field 1 Name UTC time Example 0111636.932 2 Status A 3 Latitude 2447.0949 4 N/S indicator N 5 Longitude 12100.5223 6 E/W Indicator E 7 8 9 10 Speed over ground Course over ground UTC Date Mode indicator 000.0 000.0 030407 A 11 checksum 61 Tel: +86-755-82973805 Description UTC time in hhmmss.sss format (000000.00 ~ 235959.999) Status ‘V’ = Navigation receiver warning ‘A’ = Data Valid Latitude in dddmm.mmmm format Leading zeros transmitted Latitude hemisphere indicator ‘N’ = North ‘S’ = South Longitude in dddmm.mmmm format Leading zeros transmitted Longitude hemisphere indicator 'E' = East 'W' = West Speed over ground in knots (000.0 ~ 999.9) Course over ground in degrees (000.0 ~ 359.9) UTC date of position fix, ddmmyy format Mode indicator ‘N’ = Data not valid ‘A’ = Autonomous mode ‘D’ = Differential mode ‘E’ = Estimated (dead reckoning) mode ‘M’ = Manual input mode ‘S’ = Simulator mode Fax: +86-755-82973550 E-mail: [email protected] http://www.hoperf.com GPS04 VTG – Course Over Ground and Ground Speed The actual course and speed relative to the ground. Structure: GPVTG,x.x,T,,M,x.x,N,x.x,K,a*hh<CR><LF> 1 2 3 4 5 Example: $GPVTG, 000.0,T,,M,000.0,N,0000.0,K,A*3D<CR><LF> Field 1 2 3 Name Course Speed Speed Example 000.0 000.0 0000.0 4 Mode A 5 Checksum 3D Tel: +86-755-82973805 Description True course over ground in degrees (000.0 ~ 359.9) Speed over ground in knots (000.0 ~ 999.9) Speed over ground in kilometers per hour (0000.0 ~ 1800.0) Mode indicator ‘N’ = not valid ‘A’ = Autonomous mode ‘D’ = Differential mode ‘E’ = Estimated (dead reckoning) mode ‘M’ = Manual input mode ‘S’ = Simulator mode Fax: +86-755-82973550 E-mail: [email protected] http://www.hoperf.com GPS04 ORDERING INFORMATION Model Name GPS04 Description Default 9600 baud rate Tel: +86-755-82973805 Fax: +86-755-82973550 E-mail: [email protected] http://www.hoperf.com