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video distribution buffer/amplifier

Discussion in 'Electronic Equipment' started by Maxwell, Sep 17, 2003.

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  1. Maxwell

    Maxwell Guest

    I am looking for a simple circuit to feed baseband video to two TV sets from
    a vcr's baseband video output. Something like a video distribution
    buffer/amplifier with two outputs.. Can anyone help with a circuit or
    recommend a common chip which will do the job... Max
  2. repatch

    repatch Guest

    Have you tried just connecting the two TVs to the one output? Chances are it
    would work "well enough" for your purposes. If you REALLY need to buffer it
    then a pair of op amps would do, just look for one with a unity gain freq of
    above 6MHz, since you don't need to amplify you don't need much more
    bandwidth (although a little higher would be advised to ensure as little
    phase shift as possible, a phase shift will mess with the colours). TTYL
  3. Guest

    Maxim do several chips. Free samples can be requested and delivered in about a week.
    The MAX4217 is single rail, +5V, dual amplifier, gain +2, -3dB BW = 230MHz.
    Mind you, the package is pretty small, I hope you've got good eyesight.
  4. Carl Ranson

    Carl Ranson Guest

    Nov 2001 silicon chip had a kit. not sure who sells it.
  5. Harvey White

    Harvey White Guest

    Radio shack makes them. Either does baseband, or baseband and S video

    Cheap at the price, and will drive 3 televisions.

    If you are not in the us, try Tandy....

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