摘要
投影仪在人们学习、生活、工作中得到广泛使用，但是在使用一段时间后，其颜色效果就会出现问题，比如显示器上显示的是红色，但投到投影仪上却变成了其它色。“投影仪颜色转换器”就是通过软、硬件结合的方式来解决此问题的。本文主要涉及硬件部分，包括视频专用模／数转换器AD9883A电路、数／模转换器ADV7125电路、SDRAM位扩展电路和部分外围电路、制作高频PCB板的技巧。
Projector in people ＇s learn, live, work has been widely used, however, after a period of time in using, Its color effect will be a problem. For example, the color shown in display is red, but which putted into the projector has turned out to other color. This problem can be carried out by＂ Projector color converter＂ which combines the hardware and software. This paper addresses the hardware part including video-specific analog/digital converter AD9883A Circuit, D/A converter ADV7125 Circuit, SDRAM-bit extensioned to the circuit, certain peripheral circuits, and fabrication of high-frequency PCB board skills
出处
《电脑知识与技术》
2010年第4期2472-2474,共3页
Computer Knowledge and Technology
