GPS Receivers A1029
V3.2 - 02/06
User’s Manual
Page 13 of 43
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.
3.1 Minimum Configuration
The following picture shows a recommended minimum configuration for NMEA out-
put and commands received and sent via an RS232 interface based on the A1029-
A. The configuration for the A1029-B has to be set up accordingly, using the same
pins on the module. Here it is not necessary to provide an antenna connection on
the motherboard, as a cable and connector is already provided with the module it-
self.
Figure 5: Recommended minimum configuration A1029-A
Remarks:
•
Place C1 to C5 close to MAX3232. For capacity values see datasheet of ac-
tual component used.
•
Place C6 close to module pin.
•
Use 3.3V level shifter (MAX3232 or equivalent).
•
Use separate ground plane for antenna ground.
•
Antenna input impedance is 50Ohm. Match as close as possible.
•
Maximum allowed antenna current is 50mA. Consider a current limiter.
Summary of Contents for A1029
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