Product Data Sheet

Product Data Sheet
BM021
7. Application Notes
7.1 Flash Use
The BM021 Module has been calibrated by RF before leaving the factory , That has
various ID and parameter information of the BM021 module need to be retained, Please
don’t use the “EraseF” button to erase the All Flash of the BM021 module
7.2 Mounting
BM021 has two sets of soldering pads, which allow it to be mounted both in horizontal
and vertical position. In some application, such as LED drivers, there are large
components which could affect the antenna performance greatly if the module is
mounted at the bottom of the device horizontally on the main PCB. Also, horizontally
mounted module has much larger footprint compared to vertically mounted module.
For such cases the module can be mounted in vertical position, either by soldering it to a
1x7 2.0 mm pitch 1-row pin header, or by soldering the module directly into a routed slot
on the main PCB.
When mounted in horizontal position there will have to be two keep-out areas; one for
the antenna area and one for the unused pads used for vertical assembly.
Version : 1.3 - 16 - 01/31/2019