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Forum Avnet UltraZed-EG SOM - Trace Delays
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Avnet UltraZed-EG SOM - Trace Delays

slavikolev-ilt
slavikolev-ilt 23 days ago

Hello all,

I need to find out the trace delays of the UltraZed-EG SOM (from SoC to JX1, JX2, JX3 connectors) with as high precision as possible for use in a high speed interface design. I see that in the Designer's Guide (attached) in Section 9, Page 47, there are three values provided for each pin, with no explanation given. At first I assumed they mean minimum, average, and maximum delay, respectively. However, the value ranges seem quite high for that to be the case.

Does anyone have an idea what the three values are? If they are indeed "min, avg, max", then why is the value range so high?

Any advice is greatly appreciated!

Slavi

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  • iksevas
    iksevas 21 days ago +4
    It appears that when the people who took the original user guide and rebranded it (from Avnet red/black to Avnet green/black) they messed up the headers on that table. The headers should read (PACKAGE…
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  • iksevas
    0 iksevas 21 days ago

    It appears that when the people who took the original user guide and rebranded it (from Avnet red/black to Avnet green/black) they messed up the headers on that table. The headers should read (PACKAGE DELAY (mils), ROUTING DELAY (mils), and TOTAL DELAY (mils). The package delay is the average package delay. The total delay was performed in groups to the JX connector, so you will have a group that are routed to the same delay which is easily visible in the table. 

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  • slavikolev-ilt
    0 slavikolev-ilt 20 days ago in reply to iksevas

    Thank you very much for the info!

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  • slavikolev-ilt
    0 slavikolev-ilt 20 days ago in reply to iksevas

    Thank you very much for the info!

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