REB-3571LPX User Manual
Contents
1. Name Example Units Description Message ID GPGLL GLL protocol header Latitude 2503 6319 ddmm mmmm N S indicator N Nznorth or S south Longitude 12136 0099 Dddmm mmmm E W indicator E E east or W west UTC Time 053740 000 hhmmss sss Status A A data valid or V data not valid Mode A A autonomous D DGPS E DR Checksum 52 lt CR gt lt LF gt End of message termination 21 RoyalTek Bassa cerca ene RU BIER 9 S IR ZA EJ 3 GPS Receiver User s Tip A GPS signal will be affected by weather and environment conditions thus suggest to use the GPS receiver under less shielding environments to ensure GPS receiver has better receiving performance B When GPS receiver is moving it will prolong the time to fix the position so suggest to wait for the satellite signals to be locked at a fixed point when first power on the GPS receiver to ensure to lock the GPS signal at the shortest time C following situation will affect the GPS receiving performance i Solar control filmed windows ii Metal shielded such as umbrella or in vehicle iii Among high buildings iv Under bridges or tunnels V Under high voltage cables or near by radio wave sources such as mobile phone base stations Vi Bad or heavy cloudy weather D Ifthe satellite signals can not be locked or encounter receiving problem while in the urban area the following steps are suggested i Please plug the external active antenna into2. 50 ohm Trace 43 3V Ut x GND 18 GND 784 GND GND 13 10 IN GND B6 ASPEN 20 RF ouT 0 1uF X5R 16V RTC 3V3 21 10 RESET Q msr REON 8 Q 3 3 BAT Always 958 io o rono SPAT 2585 R4 A A220 HXB SYSTEM TXB A GPS 104 Q 38 pe 8 5 A220 SYSTEM RB 1 GPS 100 0 27 GPIO 0 4 SYSTEM 4 GPS 1013 0 24 GPIO 13 RXA GPS Bootselect SYSTEM 43 3V 3 GPS JOt5 Q 25 GPIO 15 Bootselect 2 1 901595 4 Lg GPS PPS 0 29 pps VCC 3V3 2 10uF 10V Y5V GND R6 Ex REB 3571LP C5 C6 RB705D 470 ohm 5 0 1uF X5R 16V 10uF YSV 10V x U2 3 3mAH Figure 1 6 Application Circuit Reference Note 1 Ground Planes These pin 2 10 16 18 30 should be connect to ground 2 Serial Interface The TXA pin is the serial output data Default NMEA IL The TXB is the serial output data Default Null III The RXA pin is the serial input data Default NMEA IV The RXB pin is the serial input data Default Null 3 Backup Battery When module is working must to supply VCC_3V3 P1 and V_RTC_3V3 P21 power at the same time It s recommended to connect a backup battery to V_RTC_3V3 pin In order to enable
3. Copyright 2007 2008 RoyalTek Company Ltd 24
4. GNSS Satellites in View Table 2 7 contains the values of 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 2 7 GSV Data Format Name Example Units Description Message ID GPGSV GSV protocol header Total Number of 2 Range to 3 Messages Messages Number 1 Range to 3 Satellites in View 07 Satellite ID 07 Channel 1 to 32 Elevation 79 degrees Channel 1 Range 00 to 90 Azimuth 048 degrees Channel 1 True Range 000 to 359 SNR C No 42 dBHz Channel I Range 0 to 99 null when not tracking Satellite ID 27 Channel 4 Range 01 to 32 Elevation 27 degrees Channel 4 Range 00 to 90 Azimuth 138 degrees Channel 4 True Range 000 to 359 SNR C No 42 dB Hz Channel 4 Range 00 to 99 null when not tracking Checksum 71 CR lt LF gt End of message termination Depending on the number of satellites tracked multiple messages of GSV data may be required RMC Recommended Minimum Specific GNSS Data Table 2 8 contains the values of the following example GPRMC 161229 487 3723 2475 12158 3416 W 0 13 309 62 120598 10 19 REB 3571LPX User Manual RoyalTek Hat A Ba ES B2 to 3 B Table 2 8 RMC Data Format Name Example Units Desc
5. anything 10 RoyalTek REB 3571LPX User Manual EX B ER B BR 1 6 Recommended layout PAD 24 9000mn 4 15000ns Pi 1 3000n P18 PIS d P19 P12 d 20 P11 10 j gg 1 pa cf Urn I yee hn P5 a E _f 027 P4 B8 1271 mM Dip 7 PI UAYT T 1 3000 ree Figure 1 7 Recommended Layout Pad 11 RoyalTek REB 3571LPX User Manual m E ES 210 SE A EJ 1 7 Mechanical Layout 0 20 2 9015 25 40 0 20 1 90mm 4 25 40 0 20 Em 1 50 Top view Bottom view 1 28mmx9 Figure 1 8 Mechanical Layout 1 8 REB 3571LPX Test Software Specification No Function Specification 1 Clock offset 88000Hz silii 104000Hz 2 Clock Drift MME 200Hz 3 C NoHi Power Mean S9dB 4 C NoHi Power Sigma 2dB 5 Bit Sync lt 5 Sec 6 Frame Sync me IE 28 Sec 7 Phase Error lt 0 22 8 RTC Hj RTC Frequency 31000 lt lt 33500 a sett K a MTBF gt 10000 hours 12 RoyalTek Hat A i P B2 to BBR 1 9 Hardware interface P16 P17 P18 P19 P20 P21 P22 P23 P24 P25 P26 P27 P28 P29 P30 TOP GND RF IN GND V ANT IN RF OUT Y RIC 3Y3 RESET GPIO 10
6. the warm start and hot start features of the GPS receiver If you use backup battery should be add a bypassing capacitor 10uF at V_RTC_3V3 pin It can reduce noise and increase the stability 4 RF_IN Connecting to the antenna has to be routed on the PCB The transmission line must to controlled impedance to connect RF_IN to the antenna or antenna connector of your choice Impedance 50 2 5 Power Connect VCC_3V3 pin to DC 3 3V The power supply must add bypassing capacitor 10uF and 0 1uF It can reduce the Noise from power supply and RoyalTek REB 3571LPX User Manual REX BLISS S E A EJ increase power stability 6 Active antenna bias voltage The VCC RF OUT pin pin 20 is provide voltage 2 85 V If you use active antenna you can connect this pin to V ANT IN pin pin 19 to provide bias voltage of active antenna The bias voltage will be through GPS RF IN pin to provide active antenna bias voltage from RF OUT pin If your bias voltage of active antenna isn t 2 85V you can input bias voltage to V ANT IN pin pin 19 And input bias voltage of you need The input bias voltage will through GPS IN pin to provide active antenna bias voltage from V ANT IN pin PS 1 The maximum power consumption of active antenna is about 85mW 2 The input gain ranges are 19 22dB 7 GPIO The GPIO pin is recommended to connect to serial resistance 220 if use the GPIO function If no use GPIO functions it doesn t connect
7. GPIO 1 GPIO 4 GPIO 0 GPIO 13 GPIO 15 PPS GND REB 3571LPX User Manual VIEW REB 35 1LPX 9 GND GND Figure 1 9 Hardware Interface Table 1 3 Definition of Pin assignment Pin Signal I O Description Characteristics 1 3 3 DCSupply 3 3V 5 Voltage input 2 GND G Ground Reference Ground Bootselect Bootmode 3 15V gt Vy gt 2 0V 0 3V lt 0 86V 4 RXA Serial port A 3 15V gt 2 2 0V 0 3 V 0 86V 5 O Serial port A 2 85V 2 2 2 14V Vor 0 71V TXB Serial port B 2 85V 2 2 2 14V Vor 0 71V 7 RXB Serial port B 3 15V gt V 22 0V 03 lt lt 0 86V 8 GPIO 14 I O General 3 15V gt Vy gt 2 0V 0 3V 0 86V purpose I O 2 85V gt Voy gt 2 14V Vo S lt 0 71V 9 IRF ON O Indicates 2 85V Vo OV power state RoyalTek Ha A i P B2 to REB 3571LPX User Manual of RF part 10 GND G Ground Reference Ground 11 GND G Ground Reference Ground 12 GND G Ground Reference Ground 13 GND G Ground Reference Ground 14 GND G Ground Reference Ground 15 GND G Ground Reference Ground 16 GND G Ground Reference Ground 17 IN GPS Signal 500 1 57542GHz input 18 GND G Ground Reference Ground 19 V ANT IN Active Receiving DC power supply for active antenna Antenna bias Bias voltage 20
8. GPS receiver and put the antenna on outdoor or the roof of the vehicle for better receiving performance ii Move to another open space or reposition GPS receiver toward the direction with less blockage iii Move the GPS receiver away from the interferences resources iv Wait until the weather condition is improved E While a GPS with a backup battery the GPS receiver can fix a position immediately at next power on if the build in backup battery is full recharged 22 RoyalTek WRZ UEOB EE E ES 12 2 IE 2 E 3 1 Package Specification and Order Information Shipment Method Tape and reel Figure 3 1 Package Specifications 3 2 Lead Free Standard Reflow Profile 260 C 245 C Ramp up 217 C 3 C sec max 200 C 150 C Ts Pretest 60 180sec eM e T25 C to peak 480 sec max Time REB 3571LPX Lead Free Standard Reflow Profile 23 RoyalTek S IR A EJ 4 Contact Information Section Contact sales royaltek com Headquarter Address 4F No 188 Wen Hwa 2nd Rd Kuei Shan Tao Yuan 333 Taiwan TEL 886 3 3960001 FAX 886 3 3960065 Web Site http www royaltek com Web Site Customer Service _ http www royaltek com contact 5 Revision History Title REB 3571LPX GPS Module Doc Type User Manual Revision Date Author Change notice Number 1 0 2007 09 29 Amy Liu Initial Release
9. LISS SR A EJ 1 Introduction RoyalTek REB 3571LPX low power and small form factor board is the newest generation of RoyalTek GPS module The module is powered by latest SIRF Star single chip and RoyalTek proprietary navigation technology that provides you with stable and accurate navigation data The smallest form factor and miniature design is the best choice to be embedded in a device such as portable navigation device personal locator speed camera detector and vehicle locator Product Features 20 parallel channels SMT type with stamp holes TCXO design 0 1 second reacquisition time Small form factor with embedded Star Ill single chip technology NMEA 0183 compliant protocol customize protocol Enhanced algorithm for navigation stability Excellent sensitive for urban canyon and foliage environments DGPSBAS WAAS EGNOS and MSAS support Auto recovery while RTC crashes Trickle power supported Build in LNA and saw filter ooo oo gt 11 Product applications Automotive navigation Personal positioning and navigation Marine navigation gt gt Timing application RoyalTek REB 3571LPX User Manual WREBR S E A EJ 1 2 Product Picture REB 3571LPX 16 lt Pin 15 RoyalTek REB 3571LPX NEXO0000A10G 87A00010003 Pin 30 gt lt Pint Figure 1 1 REB 3571LPX Front View REB 3571LPX Interface Board Compatible with REB 3300 interface board Ro
10. RoyalTek REB 3571LPX User Manual S R AL EJ REB 3571LPX User Manual Version 1 0 2008 08 08 This document contains information highly confidential to RoyalTek Company LTD RoyalTek It is provided for the sole purpose of the business discussions between supplier and RoyalTek and is covered under the terms of the applicable Non Disclosure Agreements Disclosure of this information to other parties is prohibited without the written consent of RoyalTek Prepared by RoyalTek Company LTD 4F No 188 Wen Hwa 2nd Rd Shan Tao Yuan 333 Taiwan TEL 886 3 3960001 FAX 886 3 3960065 http www royaltek com contact RoyalTek REB 3571LPX User Manual S R AL EJ Figure Il i 1 Introductio mM 4 1 1 Product applications l l u 4 1 2 Product Picture LIU IIi SI 5 1 3 REB 3571LPX Series Block 7 1 4 REB 3571LPX Technique Specification 8 1 5 Application Cine U II 9 1 6 Recommended layout 11 1 7 Mechanical Layout u 12 1 8 REB 3571LPX Test Software Specification 12 1 9 Hard
11. VCC RF OUTO Supply DC 2 85V 2 Antenna Current lt 30mA Bias voltage 21 RTC Backup DC 2 5 3 6V voltage Current lt 10uA supply 22 Reset Reset gt 2 3V lt 0 8V Active low 23 GPIO 10 I O General 3 15V gt Vy gt 2 0V 0 3V 0 86V purpose I O 2 85V gt Voy gt 2 14V Vo lt 0 71V 24 GPIO 1 I O General 3 15V 2 V gt 2 0V 0 3V V 0 86V purpose I O 2 85V gt Voy 2 2 14V Vo S 0 71V 25 GPIO4 I O General 3 15V gt Vy gt 2 0V 0 3V lt V lt 0 86V purpose I O 2 85V gt Voy gt 2 14V Vo 0 71V 26 GPIOO I O General 3 15V gt Vy gt 2 0V 0 3V lt V 0 86V purpose I O 2 85V gt Voy gt 2 14V Vo S 0 71V 27 GPIO 13 I O General 3 15V gt V gt 2 0V 0 3V lt V lt 0 86V purpose I O 2 85V 2 V 2 2 14V Vo S 0 71V 28 GPIO 15 I O General 3 15V gt V gt 2 0V 0 3V lt lt 0 86V 14 RoyalTek REB 3571LPX User Manual m lt Els 210 S E AL EJ purpose I O 2 85V gt Voy gt 2 14V Vo S0 71V 29 PPS O pulse 3 15V gt Vy 2 2 0V 0 3V V 0 86V per second 30 GND G Ground Reference Ground Definition of Pin assignment VCC_3V3 3 3V DC power Input This is the DC power supply input pin for GPS system It provides voltage to module GND GND provides the ground Boot Set this pin to high for programming flash RXA This is the main receiver channel and is used to receive s
12. ackup input that powers the SRAM and RTC when main power is removed Typical current draw is 10uA The supply voltage should be between 2 5V and 3 6V GPIO Functions Several l Os are connected to the digital interface connector for custom applications 16 RoyalTek REB 3571LPX User Manual WREBR S R A EJ 2 Software Interface 2 1 NMEA V3 0 Protocol NMEA Protocol NMEA Output Messages the Engine board outputs the following messages as shown in Table 2 1 Table 2 1 NMEA 0183 Output Messages NMEA Record Description GGA Global positioning system fixed data GSA GNSS DOP and active satellites GSV GNSS satellites in view RMC Recommended minimum specific GNSS data GLL Geographic position latitude longitude VTG Course over ground and ground speed GGA Global Positioning System Fixed Data Table 2 2 contains the values of the following example GPGGA 161229 487 3723 2475 12158 3416 W 1 07 1 0 9 0 M 0000 18 Table 2 2 GGA Data Format Name Example Units Description Message ID GPGGA GGA protocol header UTC Position 161229 487 hhmmss sss Latitude 3723 2475 ddmm mmmm N S Indicator N Nznorth or S south Longitude 12158 3416 Dddmm mmmm E W Indicator W E east or W west Position Fix Indicator 1 See Table 2 1 Satellites Used 07 Range 0 to 12 HDOP 1 0 Horizontal Dilution of Precision MSL Altitude 9 0 meters Units M meters Geoid Separa
13. d proprietary software The system is described as follows a External antenna b 4 Mega bits flash memory c 30 pin I O pin Antenna REB 35 1LPX UART Serial Data Figure 1 5 System Block Diagram REB 3571LPX User Manual RoyalTek Hat BY ER B2 to 1 4 REB 3571LPX Technique Specification Impedance 500 Table 1 2 Technical Specifications No Function Specification GPS receiver 1 Chipset Star Ill GSC3f LPx Digital RF in a single package 2 Frequency L1 1575 42MHz 3 Code C A Code 4 Channels 20 parallel 5 Chip Sensitivity 159dBm 6 Chip set cold start 35s 9 open sky Typical 7 Chip set warm start 35s 9 open sky Typical 8 Chip set hot start 1s open sky Typical 9 Reacquisition less than 1s 10 Position accuracy 10meters at 2D RMS 11 Maximum altitude 18000 m 12 Maximum velocity 514 m s 13 Trickle power mode Duty cycle lt 34 Variable 14 Update rate Continuous operation 1Hz 15 DGPS WAAS EGNOS Interface 16 LNA 15dB Gain Typical 17 WO Pin 30pin Power consumption 18 Vcc DC 3 3 5 19 Current Avg 48mA 3 3V without ext antenna Environment 20 Temperature Operating 40 85 C Storage 40 85 C 21 Humidity lt 95 RoyalTek REB 3571LPX User Manual WREBR S R 2 EJ 1 5 Application Circuit J1 RF MCX JACK R1 0 R2 0 ohm
14. igure 3 1 Package Specifications u u u u u u 23 II RoyalTek REB 3571LPX User Manual S R AL EJ Table List Table 1 1 The interface board pin definition 5 Table 1 2 Technical Specifications 8 Table 1 3 Definition of Pin assignment 13 Table 2 1 NMEA 0183 Output Messages 18 Table 2 2 GGA Data Formal 2 uuu I III Tua Ta asss RR E KIRAKA awa 18 Table 2 3 Position Fix Indicators 19 Table 2 4 GSA Data 2 2 18 Table 2 5 Mode me 18 Table 2 6 Mode 2 uuu 19 Table 2 7 GSV Data Formaltl 19 Table 2 8 AMC Data Format 20 Table 2 9 VTG Data Formal 20 Table 2 10 GLL Data Format u uu IIIa asas 21 RoyalTek REB 3571LPX User Manual REX B
15. oftware commands to the board from SIRFdemo software or from user written software RXB This is the auxiliary receiving channel and is used to input differential corrections to the board to enable DGPS navigation TXA This is the main transmitting channel and is used to output navigation and measurement data to SIRFdemo or user written software TXB For user s application not currently used RF ON This pin indicates state of RF voltage GPS RF IN This pin receives GPS analog signal The line on the PCB between the antenna or antenna connector has to be a controlled impedance line Microstrip at 500 ANT IN This pin is reserved as external DC power supply input for active antenna If using 2 85V active antenna pin 20 has to be connected to pin 19 If using 3 3V or 5V active antenna this pin has to be connected to 3 3V or 5V power supply PS The current must be lt 100 and voltage x 12V if using external power 15 RoyalTek REB 3571LPX User Manual REX BLISS S E A EJ supply VCC RF OUT This pin can provide power 30mA 22 85V for active antenna Reset This pin provides an active low reset input to the board It causes the board to reset and start searching for satellites If not utilized it may be left open PPS This pin provides one pulse per second output from the board which is synchronized to GPS time This is not available in Trickle Power mode V RTC 3V3 Backup battery This is the battery b
16. ription Message ID GPRMC RMC protocol header UTC Time 161229 487 hhmmss sss Status A A data valid or V data not valid Latitude 3723 2475 ddmm mmmm N S Indicator N Nznorth or S south Longitude 12158 3416 dddmm mmmm E W Indicator W E east or W west Speed Over Ground 0 13 knots True Course Over Ground 309 62 degrees Date 120598 ddmmyy Magnetic Variation degrees Variation sense E east or W west Not shown Mode A A Autonomous D DGPS E DR Checksum 10 lt CR gt lt LF gt End of message termination VTG Course Over Ground and Ground Speed Table 2 9 contains the values of the following example GPVTG 79 65 T M 2 69 N 5 0 K A 38 Table 2 9 VTG Data Format Name Example Units Description Message ID GPVTG VTG protocol header Course over rgound 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 Checksum 38 lt CR gt lt LF gt End of message termination 20 REB 3571LPX User Manual RoyalTek E A Ba ES B2 to 3 B GLL Geographic Position Latitude Longitude Table 2 10 contains the values of the following example GPGLL 2503 6319 N 12136 0099 E 053740 000 A A 52 Table 2 10 GLL Data Format
17. tion meters Units M meters Age of Diff Corr second Null fields when DGPS is not used Diff Ref Station ID 0000 Checksum 18 RoyalTek REB 3571LPX User Manual B El 210 S R 2 EJ CR lt LF gt End of message termination Table 2 3 Position Fix Indicators 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 GSA GNSS DOP and Active Satellites Table 2 4 contains the values of the following example GPGSA A 3 07 02 26 27 09 04 15 1 8 1 0 1 5 33 Table 2 4 GSA Data Format Name Example Units Description Message ID GPGSA GSA protocol header Mode 1 A See Table 5 Mode 2 3 See Table 6 ID of Satellite 07 Sv on Channel 1 Used ID of Satellite 02 Sv on Channel 2 Used ID of Satellite Sv on Channel 12 Used PDOP 1 8 Position Dilution of Precision HDOP 1 0 Horizontal Dilution of Precision VDOP 1 5 Vertical Dilution of Precision Checksum 33 CR lt LF gt End of message termination Table 2 5 Mode 1 Value Description M Manual forced to operate in 2D or 3D mode A Automatic allowed to automatically switch 2D 3D RoyalTek REB 3571LPX User Manual REX BIS OS IR AGI Table 2 6 Mode 2 Value Description 1 Fix not available 2 2D 3 3D GSV
18. ware interface u u u u u u uuu u u T J 13 2 Software Interface ceci euet 17 2 1 NMEA V3 0 Protocol u IILI u 17 3 GPS Receiver User s Tip u D utres seco 22 3 1 Package Specification and Order Information 23 3 2 Lead Free Standard Reflow Prolile 23 Contact Information Section l l u u u uuu u 24 Revision HIS 4 IILI 24 RoyalTek REB 3571LPX User Manual S R AL EJ Figure List Figure 1 1 REB 3571LPX Front View u nnne nennen nante nn 5 Figure 1 2 REB 3571LPX Interface Board Front View 5 Figure 1 3 Evaluation Kit Front View u u uu uu u 6 Figure 1 4 System Block Diagram u u u u nennen nennt nant annnm nnn 7 Figure 1 5 Application Circuit Reference l u u u 9 Figure 1 6 Recommended Layout 11 Figure 1 7 Mechanical Layout namana manaa u u uuu nnne nnne nnns 12 Figure 1 8 Hardware Interface u 13 F
19. yalTek REB 3571LPX 3E NEXO0000A10G 87A00010003 Figure 1 2 REB 3571LPX Interface Board Front View Table 1 1 The interface board pin definition PIN REB 3310 REB 3570LPX REB 3571LPX 1 VCC V_GPS_3V3 VCC 2 GND GND GND 3 Bootselect Bootselect Bootselect 4 RXA RXA RXA 5 TXA TXA TXA 6 TXB TXB TXB 7 RXB RXB RXB 8 GPIO14 NC GHOM 9 RF ON RF ON RF ON 5 RoyalTek REB 3571LPX User Manual REX BLISS OS TR A EJ 2 GND GND D D D D GND IN 2 Z 2 GND GND GND GND GPS RF IN RF IN GND GND 19 V ANT V ANT IN V ANT 20 VCC RF VCC RF OUT VCC RF 21 V BAT V RTC 3V3 V BAT 2 FT oo e Z 22 RESET IN RESET RESET IN 23 GPIOIO N C 24 GPIOI N C 25 5 4 4 26 GPIOO GPIOO 27 GPIOT3 N C 28 GPIOIS5 N C 29 PPS PPS PPS 30 GND GND GND RoyalTek Evaluation Kit REV 2000 for REB 3571LPX Compatible with REB 3300 evaluation kit Please refer to RoyalTek Evaluation Kit REV 2000 for REB 3310 Operational Manual for more information Figure 1 3 Evaluation Kit Front View RoyalTek REB 3571LPX User Manual WREBR OS TR A EJ 1 3 REB 3571LPX Series Block Diagram REB 3571LPX engine board consists of SiRF star single chipset technology 4Mbits flash memory an
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