THE PRINCIPLE OF AD9920A AND ITS APPLICATION IN CCD IMAGING SYSTEM

Qiaoling Tang, Chao Zhang, Kun Wang, Zhikun Yang

ABSTRACT: This design introduces the history and development of the CCD, and then introduces AD9920A chip was produced by Analog Devices, contain main features, working principle and its application in the imaging system. The AD9920A is a highly integrated CCD signal processor for digital still camera applications, which includes a complete analog front end (AFE) with analog-to-digital conversion, combined with a full-function programmable timing generator and 19 channel vertical driver, six GPOs that can be used for shutter and system functions, for accurate output timing of the clock signal of the CCD and the A / D conversion of the signal of the CCD

Keywords: CCD, AD9920A, The highly integrated, Signal Processor.