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AK4186
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Low Power Touch Screen Controller with l2C I/F

The AK4186 is a 4-wire/5-wire resistive touch screen controller with I2C serial interface. The device incorporates 12-bit SAR A/D converter enabling a precise measurement of screen touch location and its pressure. The AK4186 offers an automatic continuous measurement mode and complex sequential measurement option with MAV filter preprocessing, allowing a host controller to save its computing load.  The AK8146 operates off of supply voltage down to 1.6V, and is available in a chip-scale package, making the device ideally fitted  to portable/mobile applications which require high performance touch screen sensing with low power and small footprint.

Features
  1. 4-wire or 5-wire Touch Screen Interface
  2. I2C* Interface (Standard or Fast Mode)
  3. 12bit SAR A/D Converter with S/H circuit
  4. Throughput Rate: 22.2KHz (at 400KHz fast mode of I2C)
  5. Pen Pressure Measurement (4-wire)
  6. Screen Touch Detection Output Pin (PENIREQN)
  7. Continuous Read Out enabled by one time command
  8. Preprocessing with Median Averaging Filter (in Sequence Mode)
  9. Low Voltage Operation: VDD = 1.6V ~ 3.6V
  10. Low Power Consumption: 60µA at 1.8V
  11. Auto Power Down Control
  12. Package: 12-pin CSP (1.7mm x 1.3mm, pitch 0.4mm)

  13. * I2C is a trademark of NXP Semiconductors
Applications

  1. Mobile Phones, Smart Phones

  2. PMPs, MP3 Players, PNDs

  3. Digital Still Cameras, Digital Video Camcorders
BLOCK DIAGRAM
AK4186 Diagram
Further Information

 

 

pdf

Download Datasheet

AK4186

March 2009

pdf

Download

Board Manual

AKD4186

February 2009

   
Related Product

Low Power Touch Screen Controller with SPI I/F

AK4185

 

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