Touch Sensors

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AKM has touch sensor product lineup for resistive touch screens.

Resistive touch screen controllers can detect touch locations in both X and Y axes of a resistive panel and touch pressure. They have an internal oscillator, supporting dual touch gestures and analog voltage measurement functions. They are widely used in portable devices, digital still cameras, digital video cameras, smart phones and portable media players.

AK4187/AK4188/AK4189: Resistive Touch Screen Controller for Dual Touch Gesture

The AK4187/AK4188/AK4189 is a resistive touch screen controller that supports dual touch gestures. Supporting dual touch gestures with a resistive touch screen has been seemed impossible conventionally. The touch screen controllers detect touch location in X and Y axis coordinates, pen pressure, dual touch, the center point coordinate and it measures tow point distance. An internal oscillator reduces the processing load of a host computer, and median averaging filters are also available.

 

Touch Screen Controllers

Part# Data
Sheet
Automotive
Qualified
Panel Dual
Touch
Package Vdd AUX
Input
Internal
Osc
Control IF AVG
Filter
wire V    
   
AK4181AVT4-wire16TSSOP2.7 to 3.6YesSPI
AK4182AVN4-wire16QFN2.2 to 3.6YesSPI
AK4183KTYes4-wire10TMSOP2.5 to 3.6I2C
AK4183VT4-wire10TMSOP2.5 to 3.6I2C
AK4187AKTYes4-wireYes16TSSOP2.7 to 3.6YesYesI2CYes
AK4187EN4-wireYes16QFN2.7 to 3.6YesYesI2CYes
AK4187VNYes4-wireYes16QFN2.7 to 3.6YesYesI2CYes
AK4188EN4-wireYes16QFN2.7 to 3.6YesYesSPIYes
AK4189ECB4-wireYes12CSP1.62 to 1.98YesYesI2CYes

Touch Sensor Controllers

Part# Data
Sheet
Automotive
Qualified
Ch# Vdd Package GPIO IRQ Automatic
Setting
AVG
Filter
False Detect
Reduction
Control IF




V



     
   

                     

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