From: [email protected]
Date: Mon Jan 22 2001 - 21:47:35 PST
hello all !
i have some confusion regarding how to evaluate the ground bounce for a
3.3V CMOS output buffer-
* i think it is important to not only reduce the max ground bounce
amplitude but also consider the spike width(time duration). but what is
the acceptable "spike volt-width product"(as i would prefer to coin it
so is there any such parameter whereby a ground bounce spike of higher
value but of short duration(width) is tolerable?
*what is the most basic criterion that limits the peak of ground bounce-
is it simply the noise reflected on a quiet output with same dirty GND or
the Vil(max) of an input buffer if it shares the same dirty ground.
Associate Design Engineer
email- [email protected]
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