MAX-7 / NEO-7 / LEA-7 - Hardware Integration Manual
GPS.G7-HW-11006-1
Design
Page 23 of 55
Non 'emitting'
circuits
PCB
Digital & Analog circuits
Non
'emitting'
circuits
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nte
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a
Digital Part
RF Part
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RF & heat
'emitting'
circuits
PCB
Digital & Analog circuits
RF& heat
'emitting'
circuits
A
nte
nn
a
1
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Figure 14: Placement (for exact pin orientation see data sheet)
3.3.3
Antenna connection and ground plane design
u-blox 7 modules can be connected to passive or active antennas. The RF connection is on the PCB and connects
the
RF_IN
pin with the antenna feed point or the signal pin of the connector, respectively.
connection to a typical five-pin RF connector. One can see the improved shielding for digital lines as discussed in
the
GPS Antenna Application Note
[6]. Depending on the actual size of the ground area, if possible place
additional vias in the outer region. In particular, terminate the edges of the ground area with a dense line of vias.
Figure 15: Recommended layout (for exact pin orientation see data sheet)