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Recent content by el hou

  1. E

    decoder design for CMOS sensor

    Hi all, when I searched for a decoder design using in CMOS sensor I found the schematic shown in the picture , and this description : "The decoder used here is a simple NAND gate followed by 3 inverters for driving the row in the array (pixels matrix)." I don't understand why he used three...
  2. E

    CMOS sensor design ?

    Yes it's a grid of photodetectors But without lens, does the image appears clearly ?
  3. E

    CMOS sensor design ?

    Hi all, I try to design a CMOS sensor (without lense ) to capture an object of size 2 cm² and I didn't find the necessary equation to calculate the size of this sensor. In this case, is the sensor has the same size as the object? If the lens is necessary, what are the reasons to use and what...
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