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IQS253

Description
Configurable 3 Channel DYCAL Capacitive Sensor with Automatic Compensation
File Size3MB,54 Pages
ManufacturerETC2
Download Datasheet View All

IQS253 Overview

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 I
2
C
J
Supply voltage:
1.8 V
to
3.6 V
J
Internal voltage regulator
J
Advanced on-chip digital signal processing
J
I
2
C 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
Any applications where a touch and proxim-
ity condition can exist for a extended pe-
riod of time
Advantages:
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
Remote Control Sleep implementation
J
Gaming Controllers
J
Proximity activated backlighting
Copyright ©
Azoteq
J
Allows for sensor drift in periods of activation
and non-activation
J
Improved digital filtering to reduce external
noise
J
Highly adjustable I
2
C device which only in-
terrupts (Event Mode) when an event is
detected
IQS253 Datasheet V1.04
1of 53

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