Holtek's new generation Touch Key Flash series MCUs are fully integrated with touch key functions, communication interfaces and display functions thus reducing greatly the need for external components. With the features of high S/N ratio touch switch control, power fluctuation rejection and excellent noise immunity, the stability of these touch keys has been greatly improved, thus offering solutions over traditional mechanical keys with their inherent weakness of rapid wear and tear and manufacturing complexity. These features combine to ensure effective and rapid product development in areas such as household appliances and other touch key controlled products.
- How can the Demo Board be used with real product external coverings for layout and how is the sensitivity setup?
Are their any patent issues with the BS80xB devices?
There are no patent infringement issues as the BS80xB devices have their own patents.
Is it possible to modify the specification according to the users needs?
Because the BS80xB is an ASIC structure there is no way to change its specification.
How can the Demo Board be used with real product external coverings for layout and how is the sensitivity setup?
Prepare a piece of actual product external covering material of similar thickness, and bond this to the BS80xB Demo Board Sense Pad to test the sensitivity. If the sensitivity is too low, then short the solder points on the back of the Sense Pad to increase the Pad area, thus increasing the sensitivity. In this way the most suitable sensitivity value can be found. This corresponding Pad size should be recorded and when implementing the PCB layout, this size should be used for the layout sense pad.