I am trying to implement a Li-Fi Tx Rx circuit and a part of that circuit contains questionable IC

Discussion in 'Digital Circuit Design' started by abrar540, Apr 8, 2017.

  1. abrar540

    Thread Starter New Member

    Apr 8, 2017
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    The attached image shows the circuit diagram of a hardware that is capable of sending as well receiving Li-Fi signals, but I don't understand the purpose of the IC used(red circle) in the image attached below, Also what is LS14, the figure of the logic gate compels me to say it is a 14pin inverter IC. Is it?
     
  2. LesJones

    Well-Known Member

    Jan 8, 2017
    2,303
    692
    The 74LS14 is a schmitt trigger inverter. I think it is being used to give nice clean transitions on the signals.

    Les.
     
  3. Dodgydave

    AAC Fanatic!

    Jun 22, 2012
    8,264
    1,440
    It's a Hex gate Schmidt Inverter for TTl fast switching, they are using all the gates so as not to waste any power, like parallel outputs for led driver.

    NV_0507_Marston_Figure05.jpg
     
  4. abrar540

    Thread Starter New Member

    Apr 8, 2017
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    0
    Then the LS05 is also doing the same thing, isn't it ?
     
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