
XT65/XT75 Hardware Interface Overview
5 GPS Antenna Interface
s
XT65_XT75_HO_v00.130
Page 27 of 67
2006-10-12
Confidential / Preliminary
5
GPS Antenna Interface
In order to receive satellite signals an additional GPS antenna must be connected to the GPS part of the XT65/
XT75 module.
5.1
Antenna Installation
To suit the physical design of individual applications XT65/XT75 offers two alternative approaches to connecting
the antenna:
• Recommended approach: U.FL-R-SMT antenna connector from Hirose assembled on the component side of
the PCB. The GPS antenna connector is the same as for the GSM antenna connector. For details see Section
5.3.
Figure 8:
GPS antenna connector placement
• Antenna pad and grounding plane placed on the bottom side of the PCB. For some notes on soldering the
antenna to the pad see Section 5.2.
Figure 9:
GPS antenna pad placement
Note that it is not possible to employ both alternatives at the same time.