一款DVI视频接收芯片的设计

Design of a DVI video receiver chip

设计了一款DVI(Digital Visual Interface)接收芯片并提出了一种基于全数字的T.M.D.S(Transition Minimized Differential Signaling)信号接收恢复方案,能够大大降低PLL(Phase Locked Loop)的设计难度,降低芯片的硬件开销。首先介绍了芯片的整体框架和各模块的作用,然后对基于本方案的数据恢复原理和实现方式进行重点说明,最后对芯片的仿真测试结果进行了相关的讨论。测试结果表明,芯片能够兼容市面上的其他DVI产品并与之通信,满足DVI 1.0规范要求。

In this paper,a DVI(Digital Visual Interface)receiver chip is designed and an all-digital-based T.M.D.S signal reception recovery scheme is proposed.This scheme can greatly reduce the design difficulty of PLL and the hardware overhead of the chip.This paper firstly introduces the whole frame of this chipand functionof each module,and then emphasizes the principle and realization of data recovery circuit based on this scheme,and finally conducts relative discussion on simulation and test results.The test results indicates that,this chip which meets the requirements of DVI 1.0 specification,can be compatible with other DVI products and communicate with them.