IQS253 Datasheet, PDF (1/54 Pages) List of Unclassifed Manufacturers – Configurable 3 Channel DYCAL Capacitive Sensor with Automatic Compensation

IQ Switch^®
ProxSense^® Series
IQS253 Datasheet - Configurable 3 Channel DYCAL^TM
Capacitive Sensor with Automatic Compensation for
Sensitivity Reducing Objects
Unparallelled Features:
J DYCAL^TM: Intelligent Hysteresis
J Internal Capacitor Implementation (ICI) - Reference capacitor on-chip
J Automatic Tuning Implementation (ATI) - Automatic adjustment for optimal sensor performance
The IQS253 ProxSense^® IC is a fully integrated capacitive sensor implementing Dynamic Cali-
bration (DYCAL^TM) technology: intelligent hysteresis to allow for sensor drift even during sensor
activation.
Main features:
J Self or Projected Technology sensors
J 3 Channels configurable as DYCAL^TM /Normal output
J Self: Boolean direct output configurable through I²C
J Supply voltage: 1.8 V to 3.6 V
J Internal voltage regulator
J Advanced on-chip digital signal processing
J I²C adjustable settings
• DYCAL^TM settings
• Control over filter operation
• Time-out for stuck key
• Proximity and Touch sensitivity selections
• Low Power options
• Event Mode possible (only communicates if an event is detected)
Applications:
J Occupancy sensors
J SAR complient sensors for Tablet PC’s
J On-ear detection for mobile phones
J 3D glasses
J Personal Media Players
J Any applications where a touch and proxim-
ity condition can exist for a extended pe-
riod of time
Advantages:
J Allows for sensor drift in periods of activation
and non-activation
J Improved digital filtering to reduce external
noise
J Remote Control Sleep implementation
J Gaming Controllers
J Highly adjustable I²C device which only in-
terrupts (Event Mode) when an event is
detected
J Proximity activated backlighting
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IQS253 Datasheet V1.04
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