Page 1
GPS Receivers A1029 A description of Tyco Electronics’ GPS modules A1029-A and A1029-B including Dead Reckoning interface User’s Manual Version 3.2 Hardware Revision 03...
Minor corrections after R&D review. 10-06-04 Minor corrections. 10-11-04 Format changes, correct pin-out of A1029B, added tray descrip- tion on A1029-B. 02-23-05 Introduced new contact details. 07-01-05 Description of additional Dead Reckoning signal interface (HW version 02), added details for use of nRST signal.
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...
A1029-B, which is a plug-in module. Both modules are capable of receiving signals from up to 12 GPS satellites and transferring them into position and timing information that can be read over a serial port. The A1029-A and A1029-B extend Tyco Electronics’ GPS receiver family, already represented by the A1021 and A1025.
GPS Receivers A1029 1.4 Handling Precautions The GPS receiver modules A1029-A and A1029-B are modules that are sensitive to electrostatic discharge (ESD). Please handle with appropriate care. V3.2 - 02/06 User’s Manual Page 9 of 43...
The functionality of both software versions is reflected in the according manuals. 2.2 Packing 2.2.1 Packaging of the A1029-A The A1029-A GPS module comes in a tape and reel package suitable for pick and place machines. Figure 2: A1029-A tape specifications (1) Page 10 of 43 User’s Manual...
GPS Receivers A1029 Figure 3: A1029-A tape specifications (2) 2.2.2 Packaging of the A1029-B The A1029-B comes in trays, with 12 modules per tray. Figure 4: A1029-B tray specification V3.2 - 02/06 User’s Manual Page 11 of 43...
GPS Receivers A1029 3 Quick Start In order to allow an easy and quick start with the modules A1029-A or A1029-B, this chapter provides a short overview on the most important steps to receive NMEA messages with position information on a serial port. For details please refer to the according chapters.
This is described in the firmware manual. Please refer there to chapter Start-up Support in the document T.E. GPS Firmware A1029 with version number V1.0 or higher.
Distance between solder pads within groups 1-9, 10-17, 18-25, 26-34: 1.27 Distance between groups (1-9 to 10-17 and 18-25 to 26-34): 5.08 All dimensions in [mm] Figure 8: Mechanical outline solder side A1029-A V3.2 - 02/06 User’s Manual Page 17 of 43...
Figure 9: Mechanical outline overview A1029-B 4.2.2 Connector A1029-B The power and I/O connector used on the A1029-B is a 1.27mm (0.05”) low profile, double row socket with a height of 2.21mm (.087”) and a total of 26 contacts on HW version 02 and higher (used to be 22 on HW version 01).
AGND Analog ground - see above Res. Reserved – do not connect Res. Reserved – do not connect AGND Analog ground - see above Table 5: Pin description A1029-A (part 1) Page 20 of 43 User’s Manual V3.2 - 02/06...
AGND Analog ground - see above Table 6: Pin description A1029-A (part 2) Pins 10 thru 17 used to be all AGND pins on HW version 01, pin 31 used to be a “Res.” pin on HW version 01. For use without Dead Reckoning, no design modifica- tion is necessary.
GPS Receivers A1029 5.3 Layout A1029-B Figure 11: Pin out information A1029-B (bottom and top view) Bottom view is showing the side of the module that will face the carrier board. Page 22 of 43 User’s Manual V3.2 - 02/06...
Reserved for test purposes Power supply antenna – provide according VANT voltage. Odometer input (required for DR, otherwise leave open) Table 7: Pin description A1029-B (part 1 – odd pin row) Symbol Description (HW 02) (HW 01) Res. Reserved – do not connect...
Serial 2 (DGPS) 4800 baud, 8 data bits, no parity, 1 stop bit, no flow control • Antenna (Antenna connected to Antenna Pin – A1029-A only) Use ground pins (pin 21, pin 23) close to the antenna input for RF ground.
GPS Receivers A1029 6 Dead Reckoning Interface Dead Reckoning (DR) functionality requires the correct firmware (“2xx”) and the correct hardware set-up on the main board. Two digital signals (odometer and re- verse), a gyro and according power supply for the internal ADC are necessary to support this feature.
GPS Receivers A1029 6.2 Gyro and Gyro Signal The gyro is of utmost importance for the performance of the DR system. The follow- ing data shall provide a guideline for selecting the right gyro: Basic gyro data • Supply voltage: 5V (more gyros available, also used in the example) or 3V •...
Page 27
GPS Receivers A1029 Figure 144: Connecting a gyro and the gyro signal based on the Murata ENV-05G V3.2 - 02/06 User’s Manual Page 27 of 43...
GPS Receivers A1029 6.3 Power Supply for Internal ADC The internal ADC requires a separate power supply on pin Vcc3A. The power should be derived from the same source that is used for the gyro. This way, oscilla- tions of the power source affect the gyro and the ADC and therefore minimize the negative effects.
GPS Receivers A1029 8 Mounting This chapter covers the mounting of the A1029-A. The A1029-B offers a power and I/O connector with a 1.27mm (0.05”) low profile, double row socket with a total of 26 contacts on HW version 02 and higher (or 22 contacts on HW version 01). Potential counterparts on the motherboard are Samtec 1.27mm (0.05”) micro strips of the...
6 minutes max. Time 25°C to peak temperature Table 11: Reflow soldering profile A1029-A As results of soldering may vary among different soldering systems and types of solder and depend on additional factors like density and types of components on board, the values above should be considered as a starting point for further optimi- zation.
9 Use of Antenna 9.1 Connection of RF Signal This chapter affects the GPS receiver module A1029-A only. The ANT pin is used to connect the receiver with the GPS antenna. The design of the antenna connection has to be done strictly according to RF design rules. A 50Ω...
9.3 Passive Antenna NOTE: Different passive antenna set-ups have been tested with positive results on the performance of the A1029 modules. Anyhow, it is the responsibility of the sys- tem integrator to qualify the final configuration. Please consider that it is crucial to keep the connection from the antenna to the ANT pin as short as possible.
Prior to product qualification the GPS receiver is preconditioned according to EIA/JEDEC standard JESD22-A113-B / Level 3. Basic qualification tests: • Reflow simulation on test PCB (A1029-A only) • Temperature Cycling –40°C … +85°C • Temperature Humidity Bias 85°C / 85% RH •...
GPS Receivers A1029 11 Applications and Hints 11.1 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)! 11.2 Antenna Sensor Pin (ANTSTAT) The Antenna Sensor pin is an output pin.
GPS satellites. While the current date and time is transmitted in NMEA sentences, an exact and accurate timing signal is provided via the 1PPS pin of the A1029 modules. The 1PPS signal is valid only, whenever the GPS modules provide a valid position fix.
11.8 Reset Signal The nRST pin is an input pin. The nRST pin can be used to generate a reset on the A1029 modules. Resetting the module will result in a restart of the complete firmware including the boot loader.
GPS Receivers A1029 12 Application Firmware Tyco Electronics provides standard GPS firmware that covers the basic functions of a GPS module (e.g. NMEA sentences) and Dead Reckoning firmware that includes Dead Reckoning functionality. Please refer to the GPS Receiver Firmware manuals.
For demonstration and easy evaluation of GPS performance Tyco Electronics offers a Demonstration Kit (including one GPS A1029-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.
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. Hans Wiedemann...
Page 41
GPS Receivers A1029 This page was intentionally left blank. V3.2 - 02/06 User’s Manual Page 41 of 43...
Need help?
Do you have a question about the A1029 and is the answer not in the manual?
Questions and answers