RoyalTek MEB-1000 manual

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Table of contents for the manual

  • Page 1

    MEB-1000 User Manual MEB-1000 User Manual Version 1.0 2007/05/25 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 infor[...]

  • Page 2

    MEB-1000 User Manual Index 1 Introducti on.......................................................................................................... 1 1.1 Product Feat ures................................................................................... 1 1.2 Product Applic ations ..................................................................[...]

  • Page 3

    MEB-1000 User Manual Table Index T able 1-1 J2 Connecto r .......................................................................................2 T able 1-2 S witch U4 ............................................................................................3 T able 1-3 C onnector: ................................................................[...]

  • Page 4

    MEB-1000 User Manual Figure Index Figure 1 MEB-1000 Picture ................................................................................. 2 Figure 2 MEB-1000 Interface B oard ....................................................................2 Figure 3 Blo ck Diagr am ............................................................................[...]

  • Page 5

    1 MEB-1000 User Manual 1 Introduction RoyalTek MEB-1000 small form factor board is the newest generation of RoyalTek GPS module. The module is powered by MediaTek MT3301 and MT3179. RoyalTek proprietary navigation technology that provides you with stable and accurate navigation data. The smallest form factor and miniature design is the best choice [...]

  • Page 6

    2 MEB-1000 User Manual 1.3 Product Pictures (1) MEB-1000 Figure 1 MEB-1000 Picture (2) MEB-1000 Interface board Figure 2 MEB-1000 Interface Board 1.4 The interface Board Pin Definition Table 1-1 J2 Connector Pin # Signal Name I/O Description Characteristics 1 ANTPWR I DC Supply V oltage Output 3.3V ± 5% 2 NC 3 VBA T I R TC Backup Battery Supply 3.[...]

  • Page 7

    3 MEB-1000 User Manual 4 VCC I DC Supply V oltage Output 3.3V ± 5% 5 Reset I External Reset Signal 6 NC 7 NC 8 NC 9 NC 10 NC 11 TX0 O Serial Port 0 12 RX0 I Serial Port 0 13 NC 14 TX1 O Serial Port 1 15 RX1 I Serial Port 1 16 NC 17 NC 18 GND G Reference Ground 19 T ime Mark O One pulse per second 20 GND G Reference Ground Table 1-2 Switch U4 Pin #[...]

  • Page 8

    4 MEB-1000 User Manual antenna. Table 1-3 Connector: Pin # Description Characteristics J1 GPS RF Connector 1575.42MHz 1.5 RoyalTek Evaluation Kit MEV-1000 for MEB-1000 ( Please refer to RoyalTek Evaluation Kit MEV-1000 for MEB-1000 Operational Manual for more information)[...]

  • Page 9

    5 MEB-1000 User Manual 1.6 MEB-1000 System Block Diagram System block diagram description: (1) External antenna. (2) 4 Mega bits flash memory (3) 31 pin I/O pin Antenna Figure 3 Block Diagram 1.7 MEB-1000 Technical Specification Impedance : 50 Ω No Function Specification GPS receiver 1 Chipset MediaT ek MT3179 (RF )& MT3301 (Digital) 2 Freq[...]

  • Page 10

    6 MEB-1000 User Manual 9 Reacquisition < 1sec 10 Position accuracy 3 meters 2D RMS(w/o aid) 11 Maximum altitude 18000 m 12 Maximum velocity 515 m/s 13 T rickle power mode N/A 14 Update rate 1Hz 15 T estability N/A 16 Protocol setup It can store the protocol set up in the SRAM and Flash memory . 17 DGPS 1.W AAS, EGNOS 2.RTCM protocol Interface 18[...]

  • Page 11

    7 MEB-1000 User Manual 1.8 Application Circuit Figure 4 Application Circuit Note: (1) Serial Interface: ( Ⅰ )The TXA & RXA pin is recommended to connect to serial resist ance(220 Ω ) and pull up (10K Ω ). It can increase the stability of serial dat a. ( Ⅱ )The TXB & RXB pin is recommended to connect to serial resist ance(220 Ω ) and [...]

  • Page 12

    8 MEB-1000 User Manual capacitor(10uF and 1uF).It can reduce the Noise from power supply and increase power stability . (5) Active antenna bias volt age: The Vcc_RF_OUT pin(pin 20) is provide volt age 2.85V . 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 volt age wil[...]

  • Page 13

    9 MEB-1000 User Manual 1.9 Recommended Layout PAD TOP Vi ew Figure 5 Recommended Layout Pad[...]

  • Page 14

    10 MEB-1000 User Manual 1.10 Mechanical Layout P1 P16 P31 P17 Unit : mm Figure 6 Mechanical Layout 1.11 Hardware Interface Interface Pin Number:[...]

  • Page 15

    11 MEB-1000 User Manual Figure 7 Interface Pin Number Table 1-4 Pin Definition Pin # Signal Name I/O Description Characteristics 1 V_GPS_3V3 I DC Supply V oltage input DC +3.3V ± 5% 2 GND G Ground Reference Ground 3 N.C 4 RXA I Serial port A V V V V V IL IH 8 . 0 0.3V - 2 6 . 3 ≤ ≤ ≥ ≥ 5 TXA O Serial port A V V V V V OL OH 4 . 0 0.3V - 4 .[...]

  • Page 16

    12 MEB-1000 User Manual 14 N.C 15 GND G Ground Reference Ground 16 GND G Ground Reference Ground 17 GPS_RF_IN I GPS Signal input 50 Ω @1.57542GHz 18 GND G Ground Reference Ground 19 V_ANT_IN I Active Antenna Bias voltage Receiving DC power supply for active antenna bias. 20 VCC_RF_OUT O Supply Antenna Bias voltage % 5 85 . 2 ± = V V O Current<[...]

  • Page 17

    13 MEB-1000 User Manual software. RXB This is the auxiliary receiving cha nnel and is used to input dif ferential corrections to the board to enable DGPS navigation.(Option) TXA This is the main transmitting channel and is used to output navigation and measurement data to PowerGPS or user written software. TXB For user ’s application (not current[...]

  • Page 18

    14 MEB-1000 User Manual Several I/Os are connected to the digital interface connector for custom applications.[...]

  • Page 19

    15 MEB-1000 User Manual 2 Software Interface 2.1 NMEA V3.1 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 outp uts the following messages as shown in Below: Table 2-1 NMEA-018 3 Output Messa[...]

  • Page 20

    16 MEB-1000 User Manual Units M meters Age of Diff. Corr . second Null fields when DGPS is not used Diff. Ref. S tation ID 0000 Checksum *18 < CR >< LF > End of message termination Table 2-3 Position Fix Indicators V alue Description 0 Fix not available or invalid 1 GPS SPS Mode, fix valid 2 Differential GPS, SPS Mode, fix valid 3-5 Not Sup[...]

  • Page 21

    17 MEB-1000 User Manual 3 3D Table 2-6 Mode 2 V alue Description M Manual-forced to operate in 2D or 3D mode A Automatic-allowed to automatically switch 2D/3D GSV -GNSS Satellites in View Below table cont ains 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, [...]

  • Page 22

    18 MEB-1000 User Manual Table 2-8 GGA Data Format Name Example Unit s Description Message ID $GPRMC RMC protocol header UTC Position 161229.487 hhmmss.sss S tatus 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 S peed Over Ground 0.13[...]

  • Page 23

    19 MEB-1000 User Manual 3 RoHS Reflow Diagram Figure 8 RoHS Reflow Diagram Te m p eratur e Ti m e T25 o C to p eak , 480 sec max 150 o C 200 o C 217 o C Ts min Ts max 260 o C T s Pretest 60~180sec 60~150sec 20~40sec Ramp-down 6 o C/sec Ramp-up 3 o C/sec max T P T L Critical Zone T L to T P 245 o C 260 o C,10sec m ax[...]

  • Page 24

    20 MEB-1000 User Manual 4 Package Specification and Order Information Shipment Method: Tape and reel SMT type with stamp holes (31 holes) Figure 9 Tape & Reel Packaging Information[...]

  • Page 25

    21 MEB-1000 User Manual 5 Contact Information  Contact: sales@royaltek.com  Headquarter: Address: 8F, 256 Yang Guang Street, Neihu Chiu, Taipei, Taiwan Tel: 886-2-77215000 Fax: 886-277215666  Web Site: http://www.royaltek.com  Web Site Customer Service: http://www.royaltek.com/contact 6 Revision History T itle MEB-100 0 GPS [...]