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REB-1315LP Operational Manual
REB-1315LP Operational Manual
Version 1.6
2007/09/13
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 Compa
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REB-1315LP Operational Manual Content 1. Introduction ............................................................................. 3 1.1 Product Applications....................................................... 3 1.2 Product Pictures.............................................................. 4 1.3 REB-1315LP Series Block Diagram................................ 5 1.4 REB-1315LP Technical Specification ............................. 6 1.5 Application Circuit......................
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REB-1315LP Operational Manual 1. Introduction RoyalTek REB-1315LP 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 loca
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REB-1315LP Operational Manual 1.2 Product Pictures (1) REB-1315LP Pin 1 (2) REB-1315LP Interface board The interface board pin definition RoyalTek Evaluation Kit REV-2000 for REB-1315LP (Please refer to RoyalTek Evaluation Kit REV-2000 for REB-1315LP Operational Manual for more information) RoyalTek Confidential 4
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REB-1315LP Operational Manual 1.3 REB-1315LP 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-1315LP Operational Manual 1.4 REB-1315LP Technical Specification Impedance ： ： ： ：50Ω No Function Specification GPS receiver SiRF Star III, GSC3f/LP 1 Chipset (Digital, RF in a single package) 2 Frequency L1 1575.42MHz. 3 Code C.A. Code. 4 Channels 20 parallel 5 Chipset Sensitivity -159dBm 6 Chipset cold start 35 sec @ open sky (avg.) 7 Chipset warm start 35 sec @ open sky (avg.) 8 Chipset hot start 1 sec @ open sky (avg.) 9 Reacquisition 0.1sec typical 10 Position accuracy
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REB-1315LP Operational Manual ≦95% 24 Humidity RoyalTek Confidential 7
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REB-1315LP Operational Manual 1.5 Application Circuit Reference schematic: RoyalTek Confidential 8
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REB-1315LP 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 ba
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REB-1315LP Operational Manual If you choice 3.3VSUB voltage then the power can use by different power supply. RoyalTek Confidential 10
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REB-1315LP Operational Manual Recommend Layout PAD : TOP View RoyalTek Confidential 11
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REB-1315LP 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 12
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REB-1315LP Operational Manual 1.6 Mechanical Layout RoyalTek Confidential 13
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REB-1315LP Operational Manual 1.7 Hardware interface Interface Pin Number: RoyalTek Confidential 14
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REB-1315LP Operational Manual Pin defined: Pin Signal Name I/O Description Characteristics 1 RXB I Serial port B 3.15≥ V ≥1.995V - 0.3V≤ V ≤ 0.855V IH IL 2.85V ≥ V ≥ 2.375V V ≤ 0.715V 2 TXB O Serial port B OH OL 3 PPS O One pulse per 2.85V ≥ V ≥ 2.375V V ≤ 0.715V OH OL second 2.85V ≥ V ≥ 2.375V V ≤ 0.715V 4 TXA O Serial port A OH OL 5 RXA I Serial port A 3.15V ≥ V ≥ 1.995V - 0.3V≤ V ≤ 0.855V IH IL 6 GPIO[10] I/O Gene
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REB-1315LP Operational Manual voltage 18 GND G Ground Reference Ground 19 RF_IN I GPS Signal 50 Ω @1.57542GHz input 20 GND G Ground Reference Ground 21 GND G Ground Reference Ground 22 GND G Ground Reference Ground 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 to receive
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REB-1315LP Operational Manual V_RTC_3V3 (Backup battery ) This is the battery backup input that powers the SRAM and RTC (Real Time Clock) when main power is removed. Typical current draw is 10uA. The supply voltage should be between 2.5V and 3.6V. ON_OFF (GPS Sleep Mode) This pin is triggered soft on/off request. Please shall only used to wake up chip. Control for hibernate. Please let it N.C. GPIO Functions Several I/Os are connected to the digital interface connector for custom app
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REB-1315LP Operational Manual 2. Software Interface NMEA V3.0 Protocol Its output signal level is TTL: 4800 bps (default), 8 bit data, 1 stop bit and no parity. It supports the following NMEA-0183 Messages: GGA, GSA, GSV, RMC . NMEA Output Messages: the Engine board outputs the following messages as shown in Table 1: Table 2 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
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REB-1315LP 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 GPS PPS Mode, fix valid 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 4 GSA Data Format Name Example Units Description Message ID $GPG
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REB-1315LP Operational Manual 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 GGA Data Format Name Example Units Description Message ID $GPGSV GSV protocol header Number of 2 Range 1 to 3 1 Messages 1 Messages Number 1 Range 1 to 3 Satellites in View 07 Satellite ID 07 Channel
