RoyalTek RET-3570LP User Manual
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RoyalTek RET-3570LP User Manual

Gps plus tmc module
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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 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.
8F, 256 Yang Guang Street, Neihu Chiu,Taipei, Taiwan
TEL: 886-2-77215000
FAX: 886-2-77215666
http://www.royaltek.com/contact
RoyalTek Confidential

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Summary of Contents for RoyalTek RET-3570LP

  • Page 1 2007/07/09 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

    1.10 H ARDWARE INTERFACE 2. SOFTWARE INTERFACE ... 14 3. GPS RECEIVER USER’S TIP ... 18 4. PACKAGE SPECIFICATION AND ORDER INFORMATION ... 19 5. CONTACT ROYALTEK ... 19 6. REVISION HISTORY... 19 RoyalTek Confidential RET-3570LP User Manual Content ... 1 ...

  • Page 3: Introduction

    1. Introduction RoyalTek RET-3570LP small form factor board is the newest generation of RoyalTek GPS plus TMC module. TMC can deliver real-time traffic and travel information to drivers. The driver can be notified of problems on the planned route, at the same time, TMC calculates and provide an alternative route to help driver avoid the incident.

  • Page 4: Product Pictures And Interface Board

    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 Backup voltage supply Battery DC Supply Voltage input DC +3.3V ± 10% Reset Reset (Active low) 6-10 N.C...
  • Page 5 Pin # Description GPS RF Connector FM RF Connector Stereo Jack RoyalTek Evaluation Kit REV-2000 for RET-3570 LP Please refer to RoyalTek Evaluation Kit REV-2000 for RET-3570 Operational Manual for more information.) RoyalTek Confidential RET-3570LP User Manual ≤ CMOS TTL Level ≤...

  • Page 6: System Block Diagram

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

  • Page 7: Technical Specification

    RDS sensitivity Right and Left audio output voltage Mechanical requirements Weight Power consumption Current Environment RoyalTek Confidential RET-3570LP User Manual Specification SiRF Star III, GSC3f/LP (Digital, RF in a single package) L1 1575.42MHz. C.A. Code. 20 parallel -159dBm. 35 sec 0.1sec typical...

  • Page 8: Application Circuit

    It’s recommended to connect a backup battery to V_RTC_3V3 in order to enable the warm start and hot start features of the GPS receiver. If you don’t intend to use a backup battery, connect this pin to GND or float it.
  • Page 9 ( Ⅱ ). The input gain ranges from 12 to 26dB. (8) GPIO: The GPIO pin is recommended to connect to serial resistance(220 Ω ), if the GPIO function is used. If GPIO function is not used, it won’t connect anything. RoyalTek Confidential RET-3570LP User Manual...

  • Page 10: Recommended Layout Pad

    RET-3570LP User Manual 1.7 Recommended layout PAD Top View RoyalTek Confidential...

  • Page 11: Mechanical Layout

    Clock Drift C/No Hi Power Mean C/No Hi Power Sigma Bit Sync Frame Sync Phase Error RoyalTek Confidential RET-3570LP User Manual Specification 88000Hz ≦ Measurement ≦ 104000Hz Measurement ≦ 200Hz Measurement ≧ 38dB Measurement ≦ 2dB Measurement ≦ 5 Sec Measurement ≦...

  • Page 12: Hardware Interface

    Indicates power state of RF RF_ON part Ground AUDIO_R Audio right channel output AUDIO_L Audio Left channel output Ground FM antenna input FM_RF_IN RoyalTek Confidential RET-3570LP User Manual Characteristics DC +3.3V±5% Reference Ground ≤ ≤ 0.3V ≤ ≤ 0.3V ≤ ≤...
  • Page 13 SIRFdemo software or other user’s application. This is the auxiliary receiving channel. The main function is to input differential corrections, then deliver them to the board for DGPS navigation. RoyalTek Confidential RET-3570LP User Manual (Input impedance 50 Ω ; Frequency 87.5~108MHz) Reference Ground Reference Ground 50 Ω...
  • Page 14 This is not available in Trickle Power mode. V_RTC_3V3 (Backup battery) This is the battery backup input that powers the SRAM and RTC when the main power is removed. Typical current draw is 10uA. RoyalTek Confidential RET-3570LP User Manual...
  • Page 15 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. RoyalTek Confidential RET-3570LP User Manual...

  • Page 16: Software Interface

    Units Age of Diff. Corr. Diff. Ref. Station ID Checksum ＜CR＞＜LF＞ RoyalTek Confidential RET-3570LP User Manual Description Global positioning system fixed data GNSS DOP and active satellites GNSS satellites in view Recommended minimum specific GNSS data Table 2 GGA Data Format...
  • Page 17 Satellite Used …. Satellite Used PDOP HDOP VDOP Checksum ＜CR＞＜LF＞ Value RoyalTek Confidential RET-3570LP User Manual Position Fix Indicators Table 3 Description Table 4 GSA Data Format Units Description GSA protocol header See Table 4-2 See Table 4-1 Sv on Channel 1 Sv on Channel 2 ….

  • Page 18: Rmc-Recommended Minimum Specific Gnss Data

    Name Example Message ID $GPRMC UTC Position 161229.487 Status RoyalTek Confidential RET-3570LP User Manual Table 7 GGA Data Format Units GSV protocol header Range 1 to 3 Range 1 to 3 Channel 1(Range 1 to 32) degrees Channel 1(Maximum 90)
  • Page 19 Latitude 3723.2475 N/S Indicator Longitude 12158.3416 E/W Indicator Speed Over Ground Course Over Ground Date Magnetic Variation Mode Checksum RoyalTek Confidential RET-3570LP User Manual ddmm.mmmm N=north or S=south dddmm.mmmm E=east or W=west 0.13 knots 309.62 degrees True 120598 ddmmyy degrees...

  • Page 20: Gps Receiver User's Tip

    GPS receiver under less shielding environments to ensure GPS receiver has better receiving performance. When GPS receiver is moving, it will prolong the time to fix the position, so it is recommended to wait for the satellite signals locked at a fixed point when first power-on the GPS receiver to ensure to lock the GPS signal at the shortest time.

  • Page 21: Package Specification And Order Information

      H eadquarter: Address: 8F, 256 Yang Guang Street, Neihu Chiu, Taipei, Taiwan Tel: 886-2-77215000 Fax: 886-277215666   W eb Site: http://www.royaltek.com   W eb Site Customer Service: http://www.royaltek.com/contact 6. Revision History Title RET-3570LP Doc Type User Manual...

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