Data Sheet

You can refer to the following references for the mounting design of the module with
on-board antenna (MK01A with ceramic chip antenna on PCB).
For external antenna modules (MK01B needs to connect an external antenna to the
u.FL connector), you need to refer to the external antenna design requirements.
Recommended module mounting example
 Please do not place any metal components in blue shaded space(*1), such as
signal line and metal chassis as possible except for main board while mounting
the components in *1 space on the main board is allowed except for no copper
plating area(*2).
 (*2)This area is routing prohibited area on the main board. Please do not place
copper on any layer.
 (*3)Characteristics may deteriorate when GND pattern length is less than 30mm.
It should be 30 mm or more as possible.
 For the best Bluetooth range performance, the antenna area of module shall
extend 3 mm outside the edge of main board, or 3 mm outside the edge of a
ground plane. Ground plane shall be at least 5 mm from the edge of the
antenna area of module.
 All module GND pins MUST be connected to main board GND. Place GND vias
close to module GND pads as possible. Unused PCB area on surface layer
can flooded with copper but place GND vias regularly to connect copper flood