Acta Photonica Sinica, Volume. 39, Issue 3, 436(2010)

Design of Linear CCD Driving Circuit with Flexible Working Modes Based on the CPLD

TAN Lu-wen, LI Jing-zhen*, LU Xiao-wei, and YANG Fan
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    A driving circuit design of TCD1707D was presented.It could overcome the shortcoming of common circuit which is needed to change the hardware or programme in case the condition has been modified.This design shows two flexible working modes,one is internal burst mode,the other is external burst mode.In the external burst mode,the users can control the time of exposure and signal outputs by means of external triggered pulse.Integration time and driving frequency of CCD can be tuned simultaneously in the other mode.The function is carried out by setting internal and external triggered respectively with complex programmable logic device (CPLD) and an external control.CPLD is combined with the control circuit,so external commands can produce corresponding control signals to drive curcuit nomally.And then through the pins of CPLD,the output signals can be transfered to the CCD chip.In addition,in order to solve the EMC problem,the article presents a linear CCD periphery circuit,which is improved the quality of CCD signal outputs.This method has the advantages of convenient debugging,simple circuit and high integration level.It is proved by experiments that the system outputs basically match the simulation,and the signal outputs are more reliable,more stable and less interferential than common system.And the system could fulfill a wide range of users’ needs,especially can be used for accurate high-speed measurement and push-broom.

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    TAN Lu-wen, LI Jing-zhen, LU Xiao-wei, YANG Fan. Design of Linear CCD Driving Circuit with Flexible Working Modes Based on the CPLD[J]. Acta Photonica Sinica, 2010, 39(3): 436

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    Paper Information

    Received: Mar. 11, 2009

    Accepted: --

    Published Online: May. 24, 2010

    The Author Email: Jing-zhen LI (lijz@szu.edu.cn)

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