TSC2302 Overview
The TSC2302 is a highly integrated PDA analog interface circuit. It contains a plete 12-bit A/D resistive touch screen converter (ADC) including drivers, touch pressure measurement capability, and 8-bit D/A converter (DAC) output for LCD contrast control. The TSC2302 offers programmable resolution of 8, 10, and 12 bits and sampling rates up to 125 kHz to acmodate different screen sizes.
TSC2302 Key Features
- SPI™ Serial Interface Touch Screen Controller
- 4-Wire Touch Screen Interface
- Internal Detection of Screen Touch
- Touch Pressure Measurement
- Ratiometric Conversion
- Programmable 8-, 10- or 12-Bit Resolution
- Programmable Sampling Rates Up to 125 kHz
- Direct Battery Measurement (0 to 6 V)
- On-Chip Temperature Measurement
- Integrated Touch Screen Processor Reduces Host CPU Interrupts and Overhead