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TMS320DM642 DSP是TI公司近期最新推出的一款高性能数字多媒体处理器。它提供片上集成的三个高精度(High definition)视频端口,遵循HDTV标准[1]。采用THS8200 DAC,完成DM642 DSP视频端口输出的数字视频信号(YCbCr)向模拟视频信号(YPbPr)的转换,是一种可行的高清视频应用解决方案,符合新型高清显示设备的输入要求。文章首先简要讨论HDTV标准,然后提出一种基于TMS320DM642与THS8200的高清晰视频实现方案。
TMS320DM642 DSP is TI recently introduced a high-performance digital multimedia processor. It offers three high definition video ports integrated on-chip, following the HDTV standard [1]. The use of the THS8200 DAC to complete the conversion of the digital video signal (YCbCr) output from the DM642 DSP video port to the analog video signal (YPbPr) is a viable solution for HD video applications that meets the input requirements of new HD display devices. The article first briefly discusses the HDTV standard and then proposes a high-definition video implementation based on the TMS320DM642 and THS8200.