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AK4186
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带有I2C I/F的低能耗触摸屏控制器
Low Power Touch Screen Controller with I2C Control 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 |
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Features
- 4-wire or 5-wire Touch Screen Interface
- I2C* Interface (Standard or Fast Mode)
- 12bit SAR A/D Converter with S/H circuit
- Throughput Rate: 22.2KHz (at 400KHz fast mode of I2C)
- Pen Pressure Measurement (4-wire)
- Screen Touch Detection Output Pin (PENIREQN)
- Continuous Read Out enabled by one time command
- Preprocessing with Median Averaging Filter (in Sequence Mode)
- Low Voltage Operation: VDD = 1.6V ~ 3.6V
- Low Power Consumption: 60μA at 1.8V
- Auto Power Down Control
- Package: 12-pin CSP (1.7mm x 1.3mm, pitch 0.4mm)
* I2C is a trademark of NXP Semiconductors
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Applications
- Mobile Phones, Smart Phones
- PMPs, MP3 Players, PNDs
- Digital Still Cameras, Digital Video Camcorders
BLOCK DIAGRAM
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Download Datasheet
AK4186
March 2009 |
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Download
Board Manual
AKD4186
February 2009 |
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