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MRF89XAM8AT-I/RM Datasheet(PDF) 7 Page - Microchip Technology |
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MRF89XAM8AT-I/RM Datasheet(HTML) 7 Page - Microchip Technology |
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7 / 34 page  © 2010 Microchip Technology Inc. Preliminary DS70651A-page 5 MRF89XAM8A 1.2 Mounting Details The MRF89XAM8A is a surface mountable module, the module dimensions are illustrated 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 MRF89XAM8A. The MRF89XAM8A has an integrated PCB antenna. For the best performance, follow the mounting details as illustrated 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 MRF89XAM8A acts as a counterpoise to the PCB antenna. Extend the host PCB top copper ground plane under and to the left and right side of the module at least 0.4 inches (1 cm) for best antenna performance. FIGURE 1-3: MODULE DETAILS |
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