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REB-1315LPNX Operational Manual
REB-1315LPNX Operational Manual
Version 1.0
2008/08/07
This document contains information highly confidential to RoyalTek Company LTD
(RoyalTek). It is provided for the sole purpose of the business discussions between customer
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 C
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REB-1315LPNX Operational Manual Content 1. Introduction ............................................................................. 3 1.1 Product Applications....................................................... 3 1.2 Product Pictures.............................................................. 4 1.3 REB-1315LPNX Series Block Diagram........................... 5 1.4 REB-1315LPNX Technical Specification ........................ 6 1.5 Application Circuit...........................
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REB-1315LPNX Operational Manual 1. Introduction RoyalTek REB-1315LPNX small form factor board is the newest generation of RoyalTek GPS module. The module is powered by latest SiRF Star III 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 l
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REB-1315LPNX Operational Manual 1.2 Product Pictures (1) REB-1315LPNX Pin 1 (2) REB-1315LPNX Interface board The interface board pin definition RoyalTek Evaluation Kit REV-2000 for REB-1315LPNX (Please refer to RoyalTek Evaluation Kit REV-2000 for REB-1315LPNX Operational Manual for more information) RoyalTek Confidential 4
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REB-1315LPNX Operational Manual 1.3 REB-1315LPNX Series Block Diagram System block diagram description: a. External antenna. b. 4 Mega bits flash memory. c. 22 pin I/O pin. RoyalTek Confidential 5
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REB-1315LPNX Operational Manual 1.4 REB-1315LPNX Technical Specification Impedance ： ： ： ：50Ω No Function Specification GPS receiver SiRF Star III, GSC3f/LPx 1 Chipset (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 Cold start (open sky) 35 sec 7 Chip Warm start(open sky) 35 sec 8 Chip Hot start (open sky) 1 se 9 Reacquisition 0.1sec typical 10 Position accuracy 10meters at 2D RMS. 11 Maxi
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REB-1315LPNX Operational Manual 1.5 Application Circuit Reference schematic: +3.3V R1 J1 3 R2 R3 HRS_U.FL OPEN(10K) 50 ohm Trace U-FL-R-SMT-3P 1 RXA 0 ohm 0 ohm C11 C12 U1 2 OPEN OPEN Please provide SYSTEM_TXB 1 20 DC 5V or 3.3V RXB GND SYSTEM_RXB 2 19 5V or 3.3V TXB GPS_RF_IN 50 ohm Trace GPS_PPS 3 18 PPS GND 4 17 L4 39nH/ +/- 0.3nH SYSTEM_RX TXA RF_VOUT RXA 5 16 GPS_BOOT SYSTEM_TX RXA BOOT C10 21 22 GND GND 0.1uF GPS_IO10 6 15 GPIO-13 GPS_IO13 GPIO-10 GPIO-13 GP
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REB-1315LPNX Operational Manual Note: (1) Ground Planes: These pin(18、20、21 、22) should be connect to ground. (2) Serial Interface: ( Ⅰ)The TXA pin is the serial output data. Default output GPS protocol. (NMEA sentence). ( Ⅱ). The RXA pin is the serial input data. Default output GPS protocol. (NMEA sentence) ( Ⅲ) The TXB pin is the serial output data (Default Null) ( Ⅳ) The RXB pin is the serial input data (Default Null). (3) Backup Battery: It’s recommended to connect a backup bat
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REB-1315LPNX Operational Manual Recommend Layout PAD : Dimension ：13mm*15mm*2.2mm(Tolerance ：±0.2mm) TOP View RoyalTek Confidential 9
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REB-1315LPNX Operational Manual Recommend paste mask pad Recommend paste mask pad is shift outside the layout pad 0.2mm(See under figure) Black Block is layout PAD 、Blue Block(Gray region is paste mask pad recommend) TOP View RoyalTek Confidential 10
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REB-1315LPNX Operational Manual 1.6 Mechanical Layout RoyalTek Confidential 11
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REB-1315LPNX Operational Manual 1.7 Hardware interface Interface Pin Number: RoyalTek Confidential 12
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REB-1315LPNX Operational Manual Pin defined: Pin Signal Name I/O Description Characteristics 3.15≥ V ≥1.995V - 0.3V≤ V ≤ 0.855V RXB I Serial port B 1 IH IL 2.85V ≥ V ≥ 2.375V V ≤ 0.715V 2 TXB O Serial port B OH OL 2.85V ≥ V ≥ 2.375V V ≤ 0.715V PPS O One pulse 3 OH OL per second 2.85V ≥ V ≥ 2.375V V ≤ 0.715V 4 TXA O Serial port A OH OL 3.15V ≥ V ≥ 1.995V - 0.3V≤ V ≤ 0.855V RXA I Serial port A 5 IH IL 3.15≥ V ≥1.
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REB-1315LPNX Operational Manual Bias voltage GND G Ground Reference Ground 18 19 RF_IN I GPS Signal 50 Ω @1.57542GHz input GND G Ground Reference Ground 20 21 GND G Ground Reference Ground GND G Ground Reference Ground 22 VIN_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 reference ground. Boot Set this pin to high for programming flash. RXA This is the main receiver channel and is used t
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REB-1315LPNX Operational Manual V_RTC_3V3 (Backup battery) This is the battery backup 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. ON_OFF Edge triggered soft on/off request. Should only be used to wake up chip. GPIO Functions Several I/Os are connected to the digital interface connector for custom applications. RoyalTek Confidential 15
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REB-1315LPNX Operational Manual 2. Software Interface NMEA Protocol NMEA Output Messages: the Engine board outputs the following messages as shown in Table 1: Table 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 Fixe
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REB-1315LPNX Operational Manual Table 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 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 4 GSA Data Format Name Example Units Description Message ID $GPGSA GSA protocol header
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REB-1315LPNX Operational Manual 2 2D 3 3D GSV-GNSS Satellites in View Table 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 7 GSV Data Format Name Example Units Description Message ID $GPGSV GSV protocol header Total Number of 2 Range 1 to 3 1 Messages 1 Messages Number 1 Range 1 to 3 Satellites in View 07 Sat
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REB-1315LPNX Operational Manual 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 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 End of message termination VTG-Course Over Groun
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REB-1315LPNX Operational Manual Table 10 contains the values of the following example: $GPGLL,2503.6319,N,12136.0099,E,053740.000,A,A*52 Table 10 GLL Data Format Name Example Units Description Message ID $GPGLL GLL protocol header Latitude 2503.6319 ddmm.mmmm N/S indicator N N=north 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 Checksu
