根据CCD输出视频信号的特点,对它进行处理时需要经过消除噪声、信号放大、模数转换等过程。使用集多种功能于一体的器件能够完成对视频信号的相关双采样、可编程放大、模数转换以及暗电平校正等功能。对该处理过程进行了详细的研究和分析,并将该芯片应用于面阵CCD相机系统中,使相机具有实时成像调节功能,得到了满意的数字图像。 According to the characteristics of the CCD output video signal, it needs to go through the process of eliminating noise, signal amplification, analog-digital conversion when it is processed. The ability to perform correlated double sampling of video signals, programmable amplification, analog-to-digital conversion, and dark-level correction using a combination of features and functions. The process is studied and analyzed in detail, and the chip is applied to the area array CCD camera system, so that the camera has a real-time imaging adjustment function and a satisfactory digital image is obtained.