Forum Discussion
Altera_Forum
Honored Contributor
16 years agoThe output resistance recommendation is misleading in so far, as you won't most likely find no fast buffer with a that high output impedance. Provide a series termination resistance and adjust it for sufficient low overshoot. You should use the lowest acceptable resistance value to minimize delay. I think, fast single gate LVCMOS buffers are a good option, e.g. LVC1G34, they have an internal output impedance of about 25 ohms.