The IO drive level constrain specifies the drive level of a output signal .. if i am using LVCMOS33 with a drive level of 8mA how can i determine the the output impedance if using f.x a 50ohm characteristic impedance of my trace?
From the IBIS files. Use them with your SI simulator. HTH., Syms.
i dont have any SI simulator available :) so how to extract the impedance from the IBIS model ? there is alot of voltage and current values, but what values should i use ?
STW.
HTH., Syms.
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