KLT1C20DC5 Datasheet | Hasco

DESCRIPTION The AK4186 is a 4-wire/ 5-wire resistive touch screen controller that incorporates 12bit SAR A/D converter. The AK4186 can detect the pressed screen location with two A/D conversions and it can also measure touch pressure. The AK4186 has both an automatic continuous measurement and a measurement data calculation function. The functions that normally require external processing, such as calculating the average screen input value, are processed by the AK4186. In addition, a new sequential mode achieves short coordinate measurement time while greatly reducing the microprocessor overhead. The AK4186 operates off of supply voltage down to 1.6V in order to connect a low voltage microprocessor. The AK4186 is the best fit for cellular phone, DSC, DVC, smart phone and other portable devices. FEATURES 4-wire or 5-wire Touch Screen Interface I2C Serial Interface 12bit SAR A/D Converter with S/H circuit Sampling Rate: 22.2k Hz Pen Pressure Measurement (4-wire) Continuous Read Function Integrated Internal Osc (Sequence Mode) Integrated Median Averaging Filter Low Voltage Operation: VDD = 1.6V ~ 3.6V PENIRQN Buffer Output Low Power Consumption: 60µA at 1.8V Auto Power Down Package: 12pin CSP (1.7mm x 1.3mm, pitch 0.4mm) 16pin QFN (3mm x 3mm, pitch 0.5mm) ! ! ! ! ! ! ! ! ! ! ! ! ! XP/BR YP/TR XN/TL YN/BL IN/ WIPER Internal Osc TEST 4/5wire Touch Screen Drivers Interface I2 C VREF+ AIN+ Serial I/F & Control Logic CAD0 SCL SDA PENIRQN SAR ADC VREF- AIN- Figure 1. Block Diagram I2C-bus is a trademark of NXP B.V. 2011/03 MS1068-E-04 -1- Free Datasheet http://.. [AK4186] - Ordering Guide AK4186ECB AK4186EN AKD4186 AKD4186EN - 40 ∼ +85°C 12pin CSP (1.66mm x 1.26mm, 0.4mm pitch) - 40 ∼ +85°C 16pin QFN (3mm x 3mm, 0.5mm pitch) AK4186ECB Evaluation Board AK4186EN Evaluation Board Black Type - Pin Layout AK4186ECB 3 2 1 A 3 2 1 XP/BR VDD IN/WIPER A AK4186ECB Top View YP/TR CAD0 XN/TL TEST SDA C YN/BL VSS SCL D PENIRQN B TOP View...