Data Sheet

SBF508M‐21V Datasheet
Confidential Syntronix Corporation 14
RP-PJ8
7. Placement of module
7.1 Notes of module placement
1. It is recommended that the module antenna to be placed outside the motherboard
and be placed as close to the edge of the motherboard to ensures the best RF
performance.
2. Please refer the figure in section 7.3 for the placement example.
3. Please keep the motherboard power line for VBAT as short as possible to lower the
impedance of power trace.
4. It is recommended to have a ground plane under the top metallic shielding zone of
the module. The ground plane should be the complete plane in the internal pin
connection area at the bottom of the module.
5. Be awarded that this is no component, cable, mounting screw, or metallic material
near the antenna area.
6. The antenna should not cover by any metallic material on outer enclosure.
7.2 Recommended footprint layout of solder pad
Figure 7-1 Solder pad layout reference