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  1. Member
    Join Date
    Feb 2006
    Location
    United States
    Search Comp PM
    Does anyone know the technical specifications for the bandwidth on component video (per each wire) for the standard HD resolutions and frame rates?

    I need to know this because
    1) if I build an active balun, I need to know the minimum bandwidth requirements of the op amps. and
    2) this is how the transformers for baluns are rated.

    I am an electrical engineer, so I know what I am asking, I just may not have asked it well. Google searching just has not been able to produce a good answer for me.
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  2. Member edDV's Avatar
    Join Date
    Mar 2004
    Location
    Northern California, USA
    Search Comp PM
    In round numbers for studio measurement. Consumer products would be less.

    ITU-Rec 601 480i/576i Y Channel 13.5 Ms/s, 6.75 MHz Nyquist for D/A.
    Analog component can go out to >9MHz to 15MHz from some cameras (e.g. HD studio camera feeding analog 480i).

    480p/576p Y Channel ~ 12-30 MHz+

    720p Y Channel ~ 30 MHz+

    1080i Y Channel ~ 30 MHz+, Pb Pr ~ 15 MHz

    1080p Y Channel ~ 60 MHz+, Pb Pr ~ 30 MHz

    480p RGB ~ 12-30 MHz+ per component

    1080p RGB ~ 60 MHz+ per component

    Op Amps should exceed anticipated signal bandwidth. Tek scopes and probes are flat to 1 GHz.


    See this Tektronix App Note.
    "High Definition Analog Component Measurement"
    http://www.tek.com/Measurement/App_Notes/25_16653/eng/25W_16653_0.pdf
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    http://www.kiva.org/about
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  3. Member
    Join Date
    Feb 2006
    Location
    United States
    Search Comp PM
    Very Interesting. Thank your for the link to the Tek Document.

    If I have a chance to put some devices on the tek computerized scope at my office, I'll post frequency domain plots.
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