QT60240-ISG

QUANTUM ATMEL  QT60240-ISG  芯片, QPROX 触摸传感器 24键

The is a digital Burst Mode Charge-Transfer QT Sensor designed specifically for matrix layout touch controls, they include all signal processing functions necessary to provide stable sensing under a wide variety of changing conditions. Only a few external parts are required for operation. The entire circuit can be built within a few square centimetres of single-sided PCB area. CEM-1 and FR1 punched, single-sided materials can be used for the lowest possible cost. The PCB"s rear can be mounted flush on the back of a glass or plastic panel using a conventional adhesive, such as 3M VHB two-sided adhesive acrylic film. The device employs transverse charge-transfer "QT" sensing, a technology that senses changes in electrical charge forced across two electrode elements by a pulse edge. The device allows a wide range of key sizes and shapes to be mixed together in a single touch panel.

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1 to 24 Keys

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Patented spread-spectrum charge-transfer transverse mode technology

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Electrode design - Two-part electrode shapes drive-receive, wide variety of possible layouts

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Layers required - One layer with jumpers, two layers no jumpers

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Interface - IC slave mode 100kHz or parallel output via external shift registers

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Self-calibration, auto drift compensation, noise filtering, adjacent key suppression