Tyco Electronics A1037-A User Manual

Gps receivers

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GPS Receivers A1037-A
A description of Tyco Electronics'
GPS module A1037-A
User's Manual
Version 2.0
Hardware Revision 01

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Summary of Contents for Tyco Electronics A1037-A

  • Page 1 GPS Receivers A1037-A A description of Tyco Electronics’ GPS module A1037-A User’s Manual Version 2.0 Hardware Revision 01...
  • Page 2 This page was intentionally left blank.
  • Page 3: Revision History

    Revision History Revision History Rev. Date Description 11-10-06 Initial Draft. 08-09-06 Final product specification implemented 09-22-06 Minor changes (storage temperature, spell check) Packaging details added 11-28-06 Additional info “Connection of RF Signal” 12-08-06 Application not antenna current limiter 03-14-07 Some minor changes 03-20-07 New design mm-dd-yy...
  • Page 4 SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF TYCO ELEC- TRONICS. THIS DOCUMENT MAY PROVIDE LINKS TO OTHER WORLD WIDE WEB SITES OR RESOURCES. BECAUSE TYCO ELECTRONICS HAS NO CONTROL OVER SUCH SITES AND RESOURCES, TYCO ELECTRONICS SHALL NOT BE RESPONSIBLE FOR THE AVAILABILITY OF SUCH EXTERNAL SITES OR...
  • Page 5: Table Of Contents

    1.1 Label ......................... 7 1.2 Characteristics ....................8 1.3 Handling Precautions ..................8 2 Ordering Information ..................9 2.1 GPS Receiver A1037-A ..................9 2.2 Packing ......................9 2.2.1 Packaging of the A1037-A..................9 2.3 Additional Equipment ..................10 3 Quick Start......................11 3.1 Minimum Configuration ...................
  • Page 6: Of 29 User's Manual V2.0 - 03/07

    10.4 1PPS pin (1 pulse per second pin)..............25 10.5 Reset Signal....................25 10.6 Battery Back-up..................... 25 11 Demonstration Kits ..................26 11.1 Evaluation Kit A1037-A ................. 26 12 Related Information ..................27 12.1 Contact......................27 12.2 Related Documents..................27 13 List of Tables ....................
  • Page 7: Introduction

    A1037-A 1 Introduction Tyco Electronics’ GPS module A1037-A is a highly integrated GPS receiver module that can be used as an SMT component. It is capable to receive signals from up to 12 GPS satellites and transferring them into position and timing information that can be read over a serial port.
  • Page 8: Characteristics

    2.4mm, 0.095” A1037-A Weight 1g, < 0.05oz Table 2: A1037-A dimensions and weight 1.3 Handling Precautions The GPS receiver module A1037-A is sensitive to electrostatic discharge (ESD). Please handle with appropriate care. Page 8 of 29 User’s Manual V2.0 - 03/07...
  • Page 9: Ordering Information

    V23993 stands for Tyco Electronics wireless and communication products, A1037A for the A1037-A module. 2.2 Packing 2.2.1 Packaging of the A1037-A The A1037-A GPS module comes in a tape and reel package suitable for pick and place machines. Figure 2: A1037-A tape specifications (1) V2.0 - 03/07 User’s Manual...
  • Page 10: Additional Equipment

    GPS Receiver A1037-A Figure 3: A1037-A tape specifications (2) 2.3 Additional Equipment V23993EVA1037A Evaluation Kit (including one module V23993A1037A) Table 3: Additional equipment A detailed description of the additional kit can be found in the according manuals. Page 10 of 29 User’s Manual...
  • Page 11: Quick Start

    GPS Receiver A1037-A 3 Quick Start In order to allow an easy and quick start with the modules A1037-A, this chapter provides a short overview on the most important steps to receive NMEA messages with position information on a serial port.
  • Page 12: Antenna

    GPS Receiver A1037-A 3.2 Antenna It is recommended to use an active GPS antenna with supply voltage of 3 to 5VDC and a current draw of 50mA maximum. The quality of the GPS antenna chosen is of paramount importance for the overall sensitivity of the GPS system. An active an- tenna should have a gain ≥...
  • Page 13: Mechanical Outline

    GPS Receiver A1037-A 4 Mechanical Outline 4.1 Details Component Side A1037-A All dimensions in [mm (inch)] Figure 5: Mechanical outline component side A1037-A V2.0 - 03/07 User’s Manual Page 13 of 29...
  • Page 14: Details Solder Side A1037-A

    GPS Receiver A1037-A 4.2 Details Solder Side A1037-A Solder pad size: 1.4 x 0.9 All dimensions in [mm] Figure 6: Mechanical outline solder side A1037-A Page 14 of 29 User’s Manual V2.0 - 03/07...
  • Page 15: Pin-Out Information

    GPS Receiver A1037-A 5 Pin-out Information 5.1 Layout A1037-A Figure 7: Pin-out information A1037-A 5.2 Description A1037-A Signals Pin Symbol Description Ground (power supply) 3.3 – 3.6 VDC (power supply) Vbak Back-up pin of module for “supercap” or battery (see below) 1PPS (P1.8)
  • Page 16: General Comments

    GPS Receiver A1037-A 5.3 General Comments The following comments should be considered for a design with and use of the module: • Standard configuration of serial port (standard GPS software): Serial 0 (NMEA) 4800 baud, 8 data bits, no parity, 1 stop bit, no flow control •...
  • Page 17: Electrical Characteristics

    GPS Receiver A1037-A 6 Electrical Characteristics 6.1 Operating Conditions Pin Description Typical 3.3V 3.3V 3.6V Current draw (without active antenna) 54mA Input current in standby mode 20µA typical value at 20°C 20µA max. value at min. temperature 300µA 1PPS (1 pulse per second), reference GPS time...
  • Page 18: Mounting

    GPS Receiver A1037-A 7 Mounting This chapter covers the mounting of the A1037-A. 7.1 Proposed Footprint for Soldering The following proposal of a footprint for soldering is assuming a stencil thickness of 150µm. marks the center of the through holes.
  • Page 19: Use Of Antenna

    (GNDANT) should be routed to the ground plane of the PCB (the ground plane is on a lower PCB layer) by via as demonstrated in the drawing. Figure 9: Antenna connector strip line A1037-A In order to gain the impedance of 50Ω, the width of the strip line needs to be calcu- lated.
  • Page 20: Active Antenna

    GPS Receiver A1037-A 8.2 Active Antenna General GPS active antenna specification: Limitations: • Supply voltage according to voltage fed into VANT pin (5V max.) • Supply current 50mA (max.) Recommendations: • Gain ≥ 20dB (should not exceed 35dB) • Noise figure ≤ 1.5dB The recommendations apply to the majority of active antennas that can be found in the market.
  • Page 21: Quality And Reliability

    • High Temperature Operating Life +70°C • Vibration Variable Frequency • Mechanical Shock Please contact Tyco Electronics for detailed information. 9.3 Production Test Each module is electrically tested prior to packing and shipping to ensure state of the art GPS receiver performance and accuracy.
  • Page 22: Applications And Hints

    GPS Receiver A1037-A 10 Applications and Hints 10.1 Minimum Configuration Please refer to chapter 3.1 Minimum Configuration for details. In addition, for opti- mized start-up behavior it is strongly recommended to add a battery back-up circuit (see chapter 3.4)! 10.2 Antenna Status Adaptation This chapter shall give assistance in designing a circuit for detecting if an antenna is connected to the module.
  • Page 23: Antennas With Different Current Draw Incl. Current Limiter

    GPS Receiver A1037-A Figure 11: Application note: Antenna sensor adaptation 10.2.2 Antennas with Different Current Draw incl. Current Limiter This proposal is similar to the first one, but includes a current limiter. Comments and notes as above apply. We strongly recommend simulating and testing your realized version before use. In any case it is the responsibility of the designer to test and verify the implementation.
  • Page 24: Vant Pin (Antenna Voltage Input Pin)

    The easiest way to do that is to connect Vcc to VANT. The maximum current is 50mA. Note: Shortcut between ANT and GND may damage the A1037-A GPS receiver module. This should be avoided by using an antenna current limiter.
  • Page 25: 1Pps Pin (1 Pulse Per Second Pin)

    10.5 Reset Signal The nRST pin is an input pin. The nRST pin can be used to generate a reset on the A1037-A module. Resetting the module will result in a restart of the complete firmware. All information stored in SRAM will still be valid.
  • Page 26: Demonstration Kits

    For demonstration and easy evaluation of GPS performance Tyco Electronics offers a Demonstration Kit (including one GPS A1037-A module). It contains a USB inter- face with according drivers to connect easily to a PC. The USB interface is an ex- tension of the serial port 0, therefore sending NMEA sentences and accepting commands.
  • Page 27: Related Information

    This manual was created with due diligence. We hope that it will be helpful to the user to get the most out of the GPS module. Anyway, inputs about errors or mistakable verbalizations and comments or propos- als to TYCO Electronics, Power Systems in Munich, Germany, for further improve- ments are highly appreciated. Tyco Electronics...
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  • Page 29: List Of Tables

    Figure 3: A1037-A tape specifications (2) .............. 10 Figure 4: Recommended minimum configuration A1037-A........11 Figure 5: Mechanical outline component side A1037-A ......... 13 Figure 6: Mechanical outline solder side A1037-A ..........14 Figure 7: Pin-out information A1037-A ..............15 Figure 8: Soldering footprint proposal A1037-A .............

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