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RoyalTek REB-4315 Operational Manual

Gps module
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REB-4315 Operational Manual
REB-4315 Operational Manual
Version 0.2
2010/09/23
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 Company LTD.
4F., No.188, Wen Hwa 2nd Rd., Kuei Shan,
Tao Yuan 333, Taiwan
TEL: 886-3-3960001
FAX: 886-3-3960065
contact sales: http://www.royaltek.com/contact

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Summary of Contents for RoyalTek REB-4315

  • Page 1 2010/09/23 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.

  • Page 2: Table Of Contents

    Introduction...2 1.1 Product Applications ...2 Product Pictures ...3 REB-4315 Block Diagram...3 4. REB-4315 Technical Specification...4 Reference schematic:...5 Power Design Consideration ...6 Recommend layout PAD:...7 Mechanical diagram ...8 Interface document...9 10. Software Interface ...12 11. Package Specification and Order Information ...16 12.

  • Page 3: Introduction

    1 Introduction RoyalTek REB-4315 is the newest generation of RoyalTek GPS module. The module is powered by latest SiRF Star IV chip and RoyalTek proprietary navigation technology that provides you with stable and accurate navigation data. SiRF Star IV is the high sensitivity navigation engine tracks as low as -163dBm.

  • Page 4: Product Pictures

    2 Product Pictures 3 REB-4315 Block Diagram System block diagram description: a. External antenna. b. 16 Mega bits flash memory c. 22 pin I/O pins RoyalTek Confidential REB-4315 Operational Manual Pin 1...

  • Page 5: Reb-4315 Technical Specification

    4 REB-4315 Technical Specification Impedance：50Ω Function GPS receiver Chipset Frequency Code Channels Sensitivity (Acquisition) Cold start Warm start Hot start Reacquisition Position accuracy Maximum altitude Maximum velocity Update rate Protocol setup Interface I/O Pin Power consumption Current Hibernate Mode Mechanical requirements...

  • Page 6: Reference Schematic

    1uF).It can reduce the Noise from power supply and increase power stability. Shutdown Shutdown the REB-4315 module, don’t remove the Vcc_IN_1V8 Pin, must be use on/off pulse make it into Hibernate mode.(It’s will keep the Warm start and Hot start function work well) (5) nRESET：...

  • Page 7: Power Design Consideration

    When the system is in simple hibernate state, an ON_OFF input pulse is required to start the system. Requirements: ‧ The REB-4315(GSD4e) is intended to be used with an always-ON, single voltage supply of 1.8V ‧ The REB-4315(GSD4e) requires an orderly shut-down process to properly stop internal operation and complete any writes of critical data to BBRAM, EEPROM, or Flash memory data area (if those functions are in use).

  • Page 8: Recommend Layout Pad

    REB-4315 Operational Manual 7 Recommend layout PAD: Dimension：13mm*15mm*2.2mm(Tolerance：±0.2mm) TOP View 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)

  • Page 9: Mechanical Diagram

    REB-4315 Operational Manual TOP View 8 Mechanical diagram RoyalTek Confidential...

  • Page 10: Interface Document

    Output Output Output Input GPIO-3 Reserved EI2/GPIO-8 Reserved RoyalTek Confidential REB-4315 Operational Manual Top View Description Non connect Non connect TM Time mark output. Output pulse timing. (CMOS I/O run from 1.8v) UART data transmit. (CMOS I/O run from 1.8v) UART data receive.
  • Page 11 This is the DC power supply input pin for GPS system. It provides voltage to module. Shutdown Shutdown the REB-4315 module, don’t remove the Vcc_IN_1V8 Pin, You should use on/off pulse make the chip into Hibernate mode.(It’s will keep the receiver’s SRAM data integrity) GND provides the reference ground.
  • Page 12 REB-4315 Operational Manual RX(CMOS I/O run from 1.8v) UART data receive (RX) TX (CMOS I/O run from 1.8v) UART data transmit (TX) 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 50Ω).

  • Page 13: Software Interface

    HDOP MSL Altitude Units Geoid Separation Units Age of Diff. Corr. RoyalTek Confidential REB-4315 Operational Manual Description Global positioning system fixed data GNSS DOP and active satellites GNSS satellites in view Recommended minimum specific GNSS data Geographic position – latitude/longitude...
  • Page 14 HDOP VDOP Checksum ＜CR＞＜LF＞ Value Manual-forced to operate in 2D or 3D mode Automatic-allowed to automatically switch 2D/3D RoyalTek Confidential REB-4315 Operational Manual 0000 End of message termination Position Fix Indicators Description Table 4 GSA Data Format Units Description GSA protocol header...
  • Page 15 Depending on the number of satellites tracked multiple messages of GSV data may be required. RMC-Recommended Minimum Specific GNSS Data Table 8 contains the values of the following example: RoyalTek Confidential REB-4315 Operational Manual Table 6 Mode 2 Description Fix not available Table 7 GSV Data Format...
  • Page 16 Checksum <CR><LF> VTG-Course Over Ground and Ground Speed Table 9 contains the values of the following example: $GPVTG,79.65,T,,M,2.69,N,5.0,K,A*38 RoyalTek Confidential REB-4315 Operational Manual Table 8 RMC Data Format Units Description RMC protocol header hhmmss.sss A=data valid or V=data not valid ddmm.mmmm...
  • Page 17 2503.6319 N/S indicator Longitude 12136.0099 E/W indicator UTC Time 053740.000 Status Mode Checksum <CR><LF> RoyalTek Confidential REB-4315 Operational Manual Table 9 VTG Data Format Example Units $GPVTG VTG protocol header 79.65 degrees Measured heading True degrees Measured heading Magnetic 2.69...

  • Page 18: Package Specification And Order Information

    Address：4F., No.188, Wen Hwa 2nd Rd., Kuei Shan, Tao Yuan 333, Taiwan TEL: 886-3-3960001 FAX: 886-3-3960065   W eb Site: http://www.royaltek.com   W eb Site Customer Service: http://www.royaltek.com/contact Revision History Title REB-4315 GPS Module Doc Type User Manual...

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