Integration Manual

Table Of Contents
LISA-U2 series - System Integration Manual
UBX-13001118 - R25 Appendix Page 177 of 182
A.3.3 Layout comparison LISA-U1 series vs. LISA-U2 series
The additional signals keep-out area must be implemented on the top layer of the application board,
below LISA-U2 modules, due to the GND opening on module bottom layer, as described in Figure 79
and Figure 80.
33.2 mm
11.85 mm
22.4 mm
5.3 mm 5.25 mm
1.4 mm
1.0 mm
PIN 1
LISA-U1 bottom side
(through module view)
Exposed GND on LISA-U1 module bottom layer
Signals keep-out area on application board
Figure 79: Signals keep-out area on the top layer of the application board, below LISA-U1 series modules
33.2 mm
5.25 mm
22.4 mm
5.3 mm 5.25 mm5.3 mm
1.3 mm
1.4 mm
1.0 mm
PIN 1
LISA-U2 bottom side
(through module view)
Exposed GND on LISA-U2 module bottom layer
Signals keep-out areas on application board
Figure 80: Signals keep-out areas on the top layer of the application board, below LISA-U2 series modules