Abstract:

In order to meet space camera system application, a highspeed CCD(Charge Coupled Device) image acquisition system based on Camera Link is designed. CPLD（Complex Programmable Logic Device） is used for timing and logic control; CCD processor TDA8783 is used for highspeed A/D converting; pingpong structure memories are used for high speed transmission and meeting Camera Link protocol.TDI（Time Delay Integral）mode is used to meet the interline CCDs bad quality and lower SNR（Ratio Signal to Noise） result for low fill factor and quantum efficiency,through setting the TDI stage and integral time of TDI.The results show that the CCD driver system can output two groups of CCD signals simultaneously in data output speed of 15 frame/s,SNR exceed 50 dB, channel asymmetric less than 2％.The driver system can meet the neqiciremeut of the camera system because of its good function and low cost.

Key words: charge coupled device（CCD）, time delay integral(TDI), complex programmable logic device（CPLD）, ping-pong structure