GENERAL DESCRIPTION
The functions that normally require external processing, such as calculating the average screen input value, are processed by the AK4185. In addition, a new sequential mode achieves short coordinate measurement time while greatly reducing the microprocessor overhead. The AK4185 can detect the pressed screen location by performing two A/D conversions and it can also measure touch pressure. The AK4185 is the best fit for cellular phone, DSC, DVC, smart phone, or other portable devices. FEATURES
4-wire or 5-wire Touch Screen Interface SPITM Serial Interface 12bit SAR A/D Converter with S/