一种具有条件接收功能数字电视的设计

摘要

为了设计一种具有务件接收功能的DVB_C数字电视,采用Trident SoC SXL为核心的处理芯片,DDR3 SDRAM采用NT5CB64 M16DP,SPI FLASH为MX25L4006E,NAND FLASH为NAND512W3A2D.采用内置数字电视高频头进行接收和解码数字电视节目信号的方法,实现全程数字化,降低数字电视信号在传输过程中导致的干扰和损耗,提高了电视接收的信号质量.用户在使用该电视过程中,只需要使用一个遥控器,把原来机顶盒的遥控器省掉,增强方便使用等优点.%In order to design DVB-C digital television with conditional access function, Trident SoC SXL is taken as the core processing chip, NT5CB64M16DP as DDR3 SDRAM, MX25L4006E as SPI FLASH, and NAND512W3A2D as NAND FLASH. A built-in digital TV tuner is adopted to receive and decode the digital television signals for the achievement of whole course digitalization, reduction of digital television signal interference and loss caused in transmission process, and improvement of television reception signal quality. Only one remote controller is needed in the process of operating the TV, that is, the original set-top box remote controller is idle. It is convenient for users.