QTouch™ Design Win: Logitech® AudioStation™

Logitech® chose QTouch™ technology to create backlit touch-sensitive controls for its AudioStation™.

This full-function stereo uses our QT1101 IC for an illuminated, seven-key touch display.

Designed primarily for use in mobile phones, MP3 players, PC peripherals, remote controls and similar consumer devices, enabling touch keys through almost any panel material to facilitate a great variety of designs. The QT1080 IC consumes just 40µA at 3V in low power mode. The QT1101 consumes 60µA.

Other features include fully debounced results, lifetime automatic calibration, adjacent key suppression™ , low noise operation and a fast detection mode for use in applications where a simple touch slider is needed. When used to implement individual touch keys, the sensitivity of each channel can be independently tuned simply by changing a capacitor.