Specifications

Bluegiga Technologies Oy
Page 47 of 64
Min 15mm
Min 15mm
6mm
Metal clearance
area
Board edge
GND plane indentation 2mm
GND plane indentation max 5.9 mm
Figure 28: Recommended layout for WT32i
Figure 29: Poor layouts for WT32i
Use good layout practices to avoid excessive noise coupling to supply voltage traces or sensitive analog
signal traces. If using overlapping ground planes use stitching vias separated by max 3 mm to avoid emission
from the edges of the PCB. Connect all the GND pins directly to a solid GND plane and make sure that there
is a low impedance path for the return current following the signal and supply traces all the way from start to
the end.