ADC & TOUCHSCREEN INTERFACE AD轉化和觸摸屏接口
1、OVERVIEW
The 10-bit/12-bitCMOS ADC (Analog to Digital Converter) is a recycling type device with8-channel analog inputs. It converts the analog input signal into10-bit/12-bit binary digital codes at a maximum conversion rate of 1MSPSwith 5MHz A/D converter clock. A/D converter operates with on-chipsample-and-hold function. The power down mode is supported.
10/12位CMOS的ADC （模數轉換器）是一種循環類型的裝置，具有8位通道模擬輸入。它將模擬的輸入信號轉換成10位/12位二進制數字編碼，在5MHz的ADC時鐘，最大轉換率是1MSPS。 ADC轉換器帶有片上采樣保持功能。電源休眠模式的支持。
Touch ScreenInterface can control input pads (XP, XM, YP, and YM) to obtain （得到）X/Y-position on the externaltouch screen device. Touch Screen Interface contains three main blocks;these are touch screen pads control logic,ADC interfacelogic and interrupt generation logic.
觸摸屏接口包含了觸摸屏控制邏輯、ADC 界面邏輯和中斷發生邏輯。
2、FEATURES特性
The ADC &Touch Screen interface includes the following features: