description of products:
Digital burst mode, charge-transfer capacitive sensor driver designed for touch-key applications. It can sense from one to four keys-one to three keys can be disabled by not installing their respective sense capacitors. The device includes all signal processing functions necessary to provide stable sensing under a wide variety of changing conditions. The outputs are fully debounced. Only a few external parts are required for operation. The device modulates its bursts in a spread-spectrum fashion in order to heavily suppress the effects of external noise and to suppress RF emissions.
product feature:
- Fourdiscreteoutputsindicatingindividualkeytouch
- Technology:Patentedspread-spectrumcharge-transfer(directmode)
- ElectrodeDesign:Simpleself-capacitancestyle
- ElectrodeMaterials:Etchedcopper,silver,carbon,IndiumTinOxide(ITO)
- ElectrodeSubstrates:PCB,FPCB,plasticfilms,glass
- PanelMaterials:Plastic,glass,composites,paintedsurfaces(lowparticledensitymetallicpaintspossible)
- PanelThickness:Upto10mmglass,5mmplastic(electrodesizedependent)
- KeySensitivity:Fixedkeythreshold,sensitivityadjustedviasamplecapacitorvalue
- PatentedAdjacentKeySuppression®(AKS®)technologytoenableaccuratekeydetection
- Interface:Pin-per-keyoutputs,plusdebugmodetoobservesensorsignals
- MoistureTolerance:Increasedmoisturetolerancebasedonhardwaredesignandfirmwaretuning
- SignalProcessing:Self-calibration,autodriftcompensation,noisefiltering
- Applications:Mobile,consumer,whitegoods,toys,kiosks,POS
- Power:1.8V–5.5V
- Package:20-pin3x3mmVQFNRoHScompliant
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