help with pll

Discussion in 'The Projects Forum' started by deadlyamplifier, Nov 25, 2009.

  1. deadlyamplifier

    Thread Starter New Member

    Oct 10, 2009
    10
    0
    can anyone explain about phase locked loops....i know what they r.......but what stuff r they used for?
     
  2. Wendy

    Moderator

    Mar 24, 2008
    20,765
    2,536
    Frequency synthesis, where one base frequency can make any other frequency digitally. If the base frequency is hyper accurate, so will the derived frequencies.

    FM discrimination. There are other ways to do this, but PLL tends to be higher fidelity.

    Pulling a frequency out of noise, relates to the discrimination issue. Tends to make better AM radios because of it.
     
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