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MicroZed Hardware Design Rev F07 net length document

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Rev F07 net length document

xzsawq21 over 6 years ago

Hello

I want to know about the Rev F07 net length.

I found and downloaded Rev B net length document. is there any differences between Rev B and Rev F net length?

I'm working with high Speed ADC and DAC (200MSPS) and I really need it.

Thanks

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0 jafoste4 over 6 years ago

Hello xsawq21,
We have the Rev F Net length report available for your download located here http://zedboard.org/support/documentation/4736
--Josh
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0 xzsawq21 over 6 years ago in reply to jafoste4

my board is MicroZed ZYNQ 7020.
even in the above link, I couldn't find anything about the Rev F07.
Thanks
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0 jafoste4 over 6 years ago

My apologies, for some reason I just assumed PicoZed. I have made a request for the Net Length Report.
--Josh
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0 jafoste4 over 6 years ago

Hi,
I just posted the MicroZed RevF Net Length Report in the same location as the RevB Report.
Regards,
Josh
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0 xzsawq21 over 5 years ago in reply to jafoste4

Dear
I want to rout high speed LVDS pairs to MicroZed (200MHz)
I checked all the documents. the below pic is a part of the below document:
http://zedboard.org/sites/default/files/documentations/5274-MicroZed-Carrier-Design-Guide-rev-1-5-V1.pdf
as you see I have to tune the lengths within 10mils (no problem) but when I checked the Length Document that you have uploaded before I see 1 cm mismatch between the pairs on the MicroZed SOM!!!
even in the first blanket we have 16mm of mismatch between one pair (P to N)!!!
between the first and second pairs there is 24mm of mismatch!!! it's disaster!
for JX1:

for JX2:
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0 xzsawq21 over 5 years ago in reply to jafoste4


Dear
    I want to rout high speed LVDS pairs to MicroZed (200MHz)
    I checked all the documents. the below pic is a part of the below document:
    http://zedboard.org/sites/default/files/documentations/5274-MicroZed-Car...


as you see I have to tune the lengths within 10mils (no problem) but when I checked the Length Document that you have uploaded before I see 1 cm mismatch between the pairs on the MicroZed SOM!!!
    even in the first blanket we have 16mm of mismatch between one pair (P to N)!!!
    between the first and second pairs there is 24mm of mismatch!!! it's disaster!
    for JX1:


    for JX2:
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0 xzsawq21 over 5 years ago in reply to jafoste4


Dear
    I want to rout high speed LVDS pairs to MicroZed (200MHz)
    I checked all the documents.
    http://s9.picofile.com/file/8313829926/pairs.PNG

as you see I have to tune the lengths within 10mils (no problem) but when I checked the Length Document that you have uploaded before I see 1 cm mismatch between the pairs on the MicroZed SOM!!!
    even in the first blanket we have 16mm of mismatch between one pair (P to N)!!!
    between the first and second pairs there is 24mm of mismatch!!! it's disaster!
    for JX1:
    http://s8.picofile.com/file/8313829900/jx1.png


    for JX2:

http://s8.picofile.com/file/8313829918/jx2.png
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0 jafoste4 over 5 years ago

Hello,
Have you reviewed the MicroZed Carrier Design Guide?
http://zedboard.org/support/documentation/1519
--Josh
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0 xzsawq21 over 5 years ago in reply to jafoste4

Yes, Actually I have sent you a pic of this document above.
http://s9.picofile.com/file/8313829926/pairs.PNG
one of pins I have showed you is PUDC that I have marked it in the table with a red blanket. it's OK. I don't use it at all for the LVDS.
but my question is: I can tune all the lengths on my carrier board within 10 mils, but there is a mismatch in the lengths around 1cm on the MicroZed SOM!
what should I do?

Thanks
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0 xzsawq21 over 5 years ago

there is no answer?
Actually this mismatch is negligible?

Thanks
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