高分辨率CCD芯片FTF4052M的驱动系统设计

CCD芯片的驱动系统是数字航测相机的核心部分,它关系到整个相机的性能和技术指标。介绍了高分辨率全帧CCD芯片FTF4052M的内部结构和驱动时序,采用集成芯片设计了该CCD芯片的驱动电路并应用于数字航测相机系统,其中包括驱动电路的时序设计和所需偏置电源的设计。集成芯片SAA8103为驱动CCD芯片提供脉冲信号,与TDA9991协调工作产生CCD垂直行驱动时钟,与74ACT04芯片配合产生驱动CCD芯片的水平像素转移时钟。实验结果表明,此CCD驱动系统采用大规模专用集成芯片进行设计,具有性能好,功耗低,体积小的优点,能够输出两路CCD电压信号,数据输出速率达2帧/s,满足了数字航测相机系统的设计要求。

Design of CCD FTF4052M driver system with high sensitivity

The driver system of CCD is the key part of a digital camera,which is related to camera's technical parameters.In this paper the inner structure and driver timing of a high sensitive full frame CCD FTF4052M is introduced.The special integrated chips are adopted to design the driver circuit to use in the digital air survey camera.SAA8103 is selected to generate the driver pulse for the CCD.It is combined with the V-driver IC(TDA9991) to generate the vertical driving signals and also connected with the chip 74ACT04 logic drivers to generate horizontal driving signals.It is proved that the CCD driver system designed by special integrated chip can output two groups of CCD signals in data output speed of 2 frame/s.For its good function,low power consume and small volume,the driver system can meet the need of the camera system.