1、 I 摘摘 要要 电视接收系统正朝着数字化和多种视听信息综合处理的方向发展。电视接 收机也正在向高集成度、数字化、高画质、多伴音、全制式、低功耗和多功能 化方面发展。本接收机基于原始电视机系统，结合利用单片机控制高频头，简 捷方便，轻便易于携带，控制简单。相比于有线电视本接收机成本低，应用场 合广泛，可用于家庭，学校，商场等多个场合。市场发展前景广阔，有较强的 竞争力。并且本接收机适应当前电视接收机发展趋势，同时适合数字电视系统 应用。 本接收器利用PIC16F84A单片机对一体化频率合成高频头进行控制，可以 实现全频道电视广播节目（包括增补频道）的自动搜索、自动存储，可以存储 127个台位；
2、 解调后输出的复合视频信号、伴音信号可提供给AV 设备使用。当 前的平板电视（液晶、等离子电视）、数字电视机顶盒均采用了频率合成高频 头来接收电视节目。且可实现实现数字电视以及移动数字电视接收电视节目。 本接收器应用性强、控制性强、灵活性强、发展潜力大，具有很高的应用价值 及广大的市场前景。 关键词关键词 电视接收器；全频道；电视广播节目；频率合成；自动存储 II Abstract TV receiving system is moving toward digital and various audio-visual information integrated treatment of t
3、he direction. The television receiver is also to the high level of integration, digital, high-quality, much sound, whole rule, low power dissipation and muti_function change aspect development. The original television system, based on the receiver using single-chip microcomputer control with high-fr
4、equency tuner, concise convenient, deft easy for carrying, simple control. Compared to the cable TV this receiver costs low, applications can be used widely, families, schools, stores and so on many occasions. Market development prospects, has the strong competitiveness. And the receiver to the current TV receiver development trend, and suitable digital TV system application. The receiver PIC16F84A SCM by integration of high frequency synthesized control can be realized head, whole channel TV r
