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RoyalTek RET-3570LP manual

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Table of contents for the manual

  • Page 1

    RoyalTek Confidential RET-3570LP User Manual RET-3570LP User Manual Version 1.1 2007/07/09 This document contains information highly confidential to RoyalTek Company LTD (RoyalTek). It is prov ided for th e sole purpos e of the business discus sions between custom er and RoyalTek and is covered under the terms of the applicable Non-Disclosure Agree[...]

  • Page 2

    RoyalTek Confidential RET-3570LP User Manual Content 1. INTRODUCTION ................................................................................................................ 1 1.1 P RODUCT F EATURES ......................................................................................................... 1 1.2 P RODUCT A PPLICA TIONS .......[...]

  • Page 3

    RoyalTek Confidential 1 RET-3570LP User Manual 1. Introduction RoyalTek RET-3570LP small form factor board is the newest generation of RoyalTek GPS plus TMC module. TMC can deliver real -time traf fic and travel information to drivers. The driver can be notified of problem s on the planned route, at the same time, TMC calculates and provide an alte[...]

  • Page 4

    RoyalTek Confidential 2 RET-3570LP User Manual 1.3 Product Pictures and Interface board (1) RET-3570LP (2) RET -3570LP Interface board The interface board pin definition J2 CONNECTOR Pin # Signal Name I/O Description Characteristics 1 N.C 2 N.C 3 Battery I Backup voltage supply 10uA Current 3.6V ~ 2.5 DC ≤ + + 4 VCC I DC Supply V oltage input DC [...]

  • Page 5

    RoyalTek Confidential 3 RET-3570LP User Manual 15 RXB I Serial port B V V V V V IL IH 855 . 0 0.3V - 15 . 3 995 . 1 ≤ ≤ ≤ ≤ CMOS TTL Level 16 N.C 17 Boot I Boot mode V V V V V IL IH 855 . 0 0.3V - 15 . 3 995 . 1 ≤ ≤ ≤ ≤ 18 GND G Ground 19 N.C 20 N.C Switch U4 Pin # Signal Name 0/1 Description Characteristics 1 GPIO-0 GPIO input/outp[...]

  • Page 6

    RoyalTek Confidential 4 RET-3570LP User Manual 1.4 System Block Diagram System block diagram description: (1) External antenna. (2) 4 Mega bits flash memory (3) 31 pin I/O pin[...]

  • Page 7

    RoyalTek Confidential 5 RET-3570LP User Manual 1.5 T echnical Specification Impedance ： 50 Ω No Function Specification GPS receiver 1 Chipset SiRF Star III, GSC3f/LP (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 @open sky 35 sec 7 Chipset [...]

  • Page 8

    RoyalTek Confidential 6 RET-3570LP User Manual 26 Operating temperature -40 ~ 85 ℃ 27 Humidity ≦ 95% 1.6 Application Circuit Reference: Note: (1) Ground Plane s: RET3570LP GPS receiver needs two different ground planes. These pins(13 、 15 、 16 、 18) should be connected to analog grou nd. These pins(2 、 10 、 30) should be connected to [...]

  • Page 9

    RoyalTek Confidential 7 RET-3570LP User Manual impedance to connect RF_IN to the antenna or any antenna connectors that you prefer . (Impedance 50 Ω ) (5) FM_RF_IN: Connecting to the antenna has to be routed on the PCB. The trans mission line must control impedance to connect FM_RF_IN to th e antenna or any antenna connectors tha t you prefer . (I[...]

  • Page 10

    RoyalTek Confidential 8 RET-3570LP User Manual 1.7 Recommended layout PAD To p V i e w[...]

  • Page 11

    RoyalTek Confidential 9 RET-3570LP User Manual 1.8 Mechanical Layout U n i t : m m P1 P16 P31 P17 1.9 T est Softwar e Specification No Function Specification 1 Clock offset 88000Hz ≦ Measurement ≦ 104000Hz 2 Clock Drift Measurement ≦ 200Hz 3 C/No Hi Power Mean Measurement ≧ 38dB 4 C/No Hi Power Sigma Measurement ≦ 2dB 5 Bit Sync Measureme[...]

  • Page 12

    RoyalTek Confidential 10 RET-3570LP User Manual 1.10 Hardware interface Interface Pin Number: 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 BOOT I Boot mode V V V V V IL IH 855 . 0 0.3V - 15 . 3 995 . 1 ≤ ≤ ≤ ≤ 4 RXA I Serial port A V V V V V IL IH 8[...]

  • Page 13

    RoyalTek Confidential 11 RET-3570LP User Manual (Input impedance 50 Ω ; Frequency 87.5~108MHz) 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_O[...]

  • Page 14

    RoyalTek Confidential 12 RET-3570LP User Manual TXA This is the main transmitting channel and is us ed to output navigation and measurement data to SiRFdemo or from user ’ s application. TXB For user ’ s application.(Not current use). RF_ON This pin indicates the status of RF voltage. V_TMC_3V3 (+3.3V DC power Input) This is the DC power supply[...]

  • Page 15

    RoyalTek Confidential 13 RET-3570LP User Manual The supply voltage should be between 2.5V and 3.6V . GPIO Functions Several I/Os are connected to the digital interface connector for customer applications.[...]

  • Page 16

    RoyalTek Confidential 14 RET-3570LP User Manual 2. Software Interface NMEA V3.0 Protocol Its output signal level is TTL: 3840 0 bps (default), 8 bit data, 1 stop b it and no parity. It supports the following N MEA-0183 Messages: GGA, GS A, GSV, RMC . NMEA Output Messages: the En gine board outp uts the follo wing messages as s hown in Tabl e 1: Tab[...]

  • Page 17

    RoyalTek Confidential 15 RET-3570LP User Manual Table 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 v alid 3-5 Not Supported GPS PPS Mode, fix valid 6 D ead Reckoning Mode, fix valid GSA-GNSS DOP and Active Satellites T able 2-4 contains the values of the foll[...]

  • Page 18

    RoyalTek Confidential 16 RET-3570LP User Manual M Manual-force d to operat e in 2D or 3D mode A Automatic-allowed to automatically switch 2D/3D GSV -GNSS Satellites in V iew T able 7 contains the values of the following example: $GPGSV , 2, 1, 07, 07 , 79, 048, 42, 02, 51, 06 2, 43, 26, 36, 256, 42, 27 , 27, 138, 42*71 $GPGSV , 2, 2, 07, 09, 23, 31[...]

  • Page 19

    RoyalTek Confidential 17 RET-3570LP User Manual Latitude 3723. 2475 ddmm .mmmm N/S Indicator N N=north or S=south Longitude 121 58.3416 dddmm .mmmm E/W Indicator W E=east or W=west Speed Over Grou nd 0. 13 knots Course Over Ground 309.62 degrees T rue Date 120598 ddmmyy Magnetic V ariation degrees E=east or W=west Mode A A=Autonomous, D=DGPS, E =DR[...]

  • Page 20

    RoyalTek Confidential 18 RET-3570LP User Manual 3. GPS Receiver User’s Tip A. GPS signal will be affected by weather and environment conditions, so it is recommended to use the GPS receiver under less shielding environm ents to ensure GPS receiver has better receiving performance. B. When GPS receiver is m oving, it will prolong the time to fix t[...]

  • Page 21

    RoyalTek Confiden tial 19 RET-3570 Operational Manual 4. Package Specificatio n and Order I nformation Shipment Method: Tape and reel 5. Contact Royalte k  Contact: sales@royaltek.com  Headquarter: Address: 8F, 256 Yang Guang Street, Neihu Chiu, Taipei, Taiwan Tel: 886-2-77215000 Fax: 88 6-277 215666  Web Site: http://www.royaltek[...]