QT115-ISG Atmel, QT115-ISG Datasheet
QT115-ISG
Specifications of QT115-ISG
QT115-ISG
Related parts for QT115-ISG
QT115-ISG Summary of contents
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... QT11x VARIATIONS QT111 Longer recalibration timeouts QT112 Faster response time QT115 Variable gain, daisy-chaining 4 August 2004 Copyright QRG Ltd. (UK) ...
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QT111-I / QT111H-I QProx™ 8-pin Sensor See QT110 datasheet for primary information. This sheet only lists differences with the QT110. This part is only available in -I suffix (-40..+85C) Description The QT111 is a touch sensor IC having recalibration timeouts ...
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QT112-I / QT112H-I QProx™ 8-pin Sensor See QT110 datasheet for primary information. This sheet only lists differences with the QT110. This part is only available in -I suffix (-40..+85C) Description The QT112 is a variant of the QT110 having a ...
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... The QT115 is a variant of the QT110 having variable sensitivity and the ability to daisy-chain, allowing multiple QT115 used in immediate proximity to each other to create a small touch panel keys. Like the QT113, it has a variable threshold which can be modified by simply altering the value of the sample capacitor Cs, which acts to modify gain. It does not include any of the option jumpers found on the QT110 or QT113 ...
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... Minor fluctuations in Vdd WILL cause false triggers or rapid swings in gain. DO NOT use bench power supplies or supply circuits shared with other digital functions. Ordinary 78L05 class regulators are fine in almost all cases. The QT115 is an extremely sensitive device... do not take power supply issues lightly. ...
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... HeartBeat™ Signal The QT115's HeartBeat pulse works exactly the same as in the QT110 except that the HeartBeat rate is the same as the burst rate. In Master mode, the HeartBeat signal occurs just before the acquisition burst. In slave mode, it occurs just after receipt of the slave pulse on pin 4 ...