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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 page 5, which is "Total current per LVDS I/O bank must not exceed 100 mA." as the current of LVDS is almost 4mA, it will be 22*2*4=176mA per bank, which is almost 2 times of the rated current.
Can I use 100% LVDS pairs of one bank?
Thanks and best regards,
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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.
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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
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Hu Kuang,
There is no limitation on the mA on a LVDS Bank. The 100mA is only applicable during configuration time. When it is in user mode, no restriction for that.
Thank You.
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Thank you very much
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