1
\$\begingroup\$

I am analyzing signal integrity between an applications processor and DDR3 modules.I was looking at IBIS models for the device I am using. I was confused because certain IBIS models had "driver impedance" and certain ones had "ODT" - (on-die termination)

In that context, would anyone be able to outline the difference between termination impedance and driver impedance?

Thanks

\$\endgroup\$
2
\$\begingroup\$

The data signals on this interface are bi-directional. It means that the same pins are receivers and transmitters. On-die termination refers to impedance in receiver mode, while driver impedance is when the circuit switches into driver mode and drives the signal.

\$\endgroup\$
0

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.