JS-6B1/111是一款全I2C控制的频率合成多制式视频电子调谐器，介绍了该芯片的特点、功能。并利用JS-6B1/111设计了电视信号前端处理系统，给出了其硬件结构以及软件流程。-JS-6B1/111 is a full-I2C-controlled frequency synthesizer tuner multi-format Video Electronics introduced the chip' s features and functions. And use JS-6B1