• Optics and Precision Engineering
  • Vol. 16, Issue 6, 1140 (2008)
JIN Long-xu1,*, LI Guo-ning1, and LIU Yan-yan2
Author Affiliations
  • 1[in Chinese]
  • 2[in Chinese]
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    DOI: Cite this Article
    JIN Long-xu, LI Guo-ning, LIU Yan-yan. Design of driving circuit for frame transfer area CCD[J]. Optics and Precision Engineering, 2008, 16(6): 1140 Copy Citation Text show less

    Abstract

    A kind of large area CCD driving circuit with high frame frequency is designed by using a frame transfer area CCD FT18 as its sensor.This kind of high speed driving circuit can increase the angle of visual field under constant video condition in trail to meet the requirement for the big visual field of searching target.The structure and specification of the area CCD FT18 sensor are introduced,and the circuits of working clock and power driver for the sensor are proposed.The noises of the video signal (KTC noise and 1/f noise) are filtered by using the Correlated Double Sampling (CDS) technique to enhance the signal-to-noise ratio of the system.Finally a radiation scale is carried out,experiment results show that the respond degree of CCD is linear under the integration time of 0.32 ms,which verifies that the driving circuit works normally.A Field Programmable Gate Array (FPGA) is adopted as the key controller of the system to perform the modularization design from top to bottom.which realizes the hardware design by a software and improves development efficiency.
    JIN Long-xu, LI Guo-ning, LIU Yan-yan. Design of driving circuit for frame transfer area CCD[J]. Optics and Precision Engineering, 2008, 16(6): 1140
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