设计了一种基于动态扫描原理的液晶显示(LCD)驱动芯片.该芯片为高压CMOS数模混合集成电路并支持输出频率可选功能.芯片输入数据频率为13.5 MHz,输出1024级256列模拟电压信号直接驱动LCD,输出电压幅度可达12 V以上.负载为200 pF时,最大摆幅E升/下降时间小于5 μs.芯片采用新加坡特许半导体(Chartered)0.35μm、18 V高压工艺设计,并进行了仔细的版图设计以减小匹配误差,仿真结果显示电路性能完全满足设计指标要求.
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