User's Manual

13.6. PCB pad design
Non solder mask defined” (NSMD) type is recommended for the solder pads on the PCB.
Recommendations for PCB pad dimensions
Ball pitch [mm]
2,4
Solder resist opening diameter A [mm]
1,150
Metal pad diameter B [mm]
1 ± 0.05
It is not recommended to place via or microvia not covered by solder resist in an area of 1,6mm
diameter around the pads unless it carries the same signal of the pad itself. (see following figure).