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What is the operating frequency of the touch screen for the iPhone?

  1. Jul 15, 2013 #1
    I am trying to find the operating frequency for the iPhone 3, 4 & 5 touchscreen controller. Once I find these frequencies I would like to add filtering to my prototype so that these frequency do not interfere with the functionality of the capacitive LCD touch screen.
  2. jcsd
  3. Jul 15, 2013 #2


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    I couldn't google the info you want but the scanning rate for the touch screen is probably a lot lower than the controller clock rate.
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