QT140
feature can lead to entirely new product concepts, adding high value to product designs. Each of the channels operates independently of the others, and each can be tuned for a unique sensitivity level by simply changing its sample capacitor value. The devices are designed specifically for human interfaces, like control panels, appliances, gaming devices, lighting controls, or anywhere a mechanical switch or button may be found; they may also be used for some material sensing and control applications. These devices require only a mon inexpensive capacitor per sensing channel in order to function. They also offer patent pending AKS™ Adjacent Key Suppression which suppresses touch from weaker responding keys and allows only a dominant key to detect, for example to solve the problem of large fingers on tightly spaced keys. These devices also have a SYNC I/O pin which allows for synchronization with additional similar parts and/or to an external to suppress interference. The RISC core of...
