
MRF89XAM9A
1.2 Mounting Details
The MRF89XAM9A is a surface mountable module.
The dimensions of the module are shown in
Figure 1-3 . The module PCB is 0.032" thick with
castellated mounting holes on the edge. Figure 1-4 is
the recommended host PCB footprint for the
MRF89XAM9A.
The MRF89XAM9A has an integrated PCB antenna.
For the best performance, follow the mounting details
shown in Figure 1-5 . It is recommended that the
module be mounted on the edge of the host PCB and
an area around the antenna, approximately 3.4" (8.6
cm), be kept clear of metal objects for best
performance. A host PCB ground plane around the
MRF89XAM9A acts as a counterpoise to the PCB
antenna. It is recommended to extend the ground plane
at least 0.4" (1 cm) around the module.
FIGURE 1-3:
FIGURE 1-4:
MODULE DETAILS
RECOMMENDED PCB FOOTPRINT
? 2011 Microchip Technology Inc.
Preliminary
DS75017A-page 5