User's Guide

LE866 HARDWARE USER GUIDE 1vv0301210 Rev.0 Preliminary 2015-09-02 55 of 68
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PCB pad design
Non solder mask defined (NSMD) type is recommended for the solder pads on the PCB.
PCB pad dimensions
The recommendation for the PCB pads dimensions are described in the following image (dimensions in
mm)
Solder resist openings
PCB
Copper Pad
Solder Mask
SMD
(Solder Mask Defined)
NSMD
(Non Solder Mask Defined)