摘要
针对安全视频监控系统(Security Video monitor System,简称SVMS)中非屏蔽双绞线(UTP)电缆远距离传输的视频信号损耗补偿需求,提出了利用自适应均衡器MAX7474来补偿UTP中衰减复合视频信号的应用方案。简要介绍了MAX7474器件的功能及其内部结构;给出了在MAX7474的基础上构建UTP视频信号补偿电路的一个应用实例。经实验证明,该方案中的电路工作稳定,对衰减后的视频信号具有良好的补偿性能。
Aiming at the compensating requirement for UTP video signals in safety monitor and control system, a video signal compesating scheme based on adaptive equalizer MAX7474 is proposed in this paper.Adaptive equalizer MAX7474 and its function structure are introduced.An application example of video signal compensating circuit based on adaptive equalizer MAX7474 is provided. The test shows that the design scheme circuit is reliability and can compensate video signals.
出处
《国外电子元器件》
2008年第10期69-71,共3页
International Electronic Elements
