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Differential Propagation Delay

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  • Differential Propagation Delay

    Hi, I'm trying to use the following part to recover and remove jittter from a HDMI clock signal. Looking at figure 4 of the datasheet and the AC electrical characteristics table it can be seen that there is a propagation delay of 1.4ns. How do I adjust the lengths of the other data pairs to compensate the delay on the clock pair?

    http://www.ti.com.cn/cn/lit/ds/symlink/ds90lv001.pdf

  • #2
    Hi IMR. I am not sure what you are trying to do, but adding a buffer may not remove jitter. Jitter may be caused by the generator.

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    • #3
      In a differential routing what does gap actually mean? is it center to center distance or edge to edge?

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      • #4
        Inner edge to inner edge

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        • #5
          Is it accepted among different design tools? I am using Mentor Graphics Hyperlynx for stack up design.

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          • #6
            Gap / clearance is the space between two tracks. It is same understanding / definition in all software (at least in all the software I used including Cadence Allegro, PADS, ...).

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