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QT1081 - 8-KEY QTOUCH SENSOR IC

Features

  • as the older device but differs in the following ways:.
  • Rs resistors on each channel eliminated.
  • Up to 4x more sensitive for a given value of Cs.
  • Shorter burst lengths, less power for a given value of Cs.
  • ‘Burst B’ only mode for lower key counts with less power The QT1081 should be used over the QT1080 for new designs due to a simpler circuit, lower power and lower cost. 1.2.6 Detection Integrator Confirmation Detection Integrator (DI) confirmation reduces the effects of noi.

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Datasheet Details

Part number QT1081
Manufacturer Quantum
File Size 268.21 KB
Description 8-KEY QTOUCH SENSOR IC
Datasheet download datasheet QT1081 Datasheet

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Full PDF Text Transcription

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lQ This datasheet is applicable to all revision 1 chips SYNC/LP VSS DETECT SNS7K SNS7 QT1081 8-KEY QTOUCH™ SENSOR IC The QT1081 is an improved, lower cost, simplified circuit version of the popular QT1080 sensor IC. The QT1081 is designed for low cost appliance, mobile, and consumer electronics applications. QTouch™ technology is a type of patented charge-transfer sensing method well known for its robust, stable, EMC-resistant characteristics. It is the only all-digital capacitive sensing technology in the market today. This technology has over a decade of applications experience spanning thousands of designs. QTouch circuits are renowned for simplicity, reliability, ease of design, and cost effectiveness.
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