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WKUAN's avatar
WKUAN
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5 years ago

Arria10 : Total current per LVDS I/O bank must not exceed 100 mA.

Hi friends, I am designing one board with ARRIA10, I want to use 44 pairs LVDS in 2 banks, such as 3A and 3B, when i check the datasheet <Intel® Arria® 10 Device Datasheet>, i found a note 3 on pag...
YuanLi_S_Intel's avatar
YuanLi_S_Intel
Icon for Regular Contributor rankRegular Contributor
5 years ago

Hi Wu Kuang,

May i know how do you determine the current of a pair LVDS? Also, bank 3A and 3B are considered as 2 bank.

Thank You.

  • WKUAN's avatar
    WKUAN
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    5 years ago

    Hi Sooy，

    Thank you for your reply.

    I want to use a 22 pair of LVDS in 3a bank for input, a 22 pair of LVDS in 3b bank for another set of input, a 15 pair of LVDS in 3c bank for output, and a 15 pair of LVDS in 3d bank for another set of output, will this setup work？The chip chosen is 10ax115nf45.

    I see that the LVDS specification says the current is 3.5mA. I wonder how this current is calculated. Is it a current limitation of one pair of LVDS or a wire?​

    Thanks and best regards,

    KUANG Wu