I have a question regarding my project. I am designing high speed output from my microcontroller.

enter image description hereenter image description here

Switching times should be around 450 MHz, so I found IBIS model for my microcontroller and line driver, but when I have simulated reflections, the voltage level is wrong. It is 5V but should be 3.3V instead.

enter image description here

I changed all voltage range of the pins to 3.3V, but it still doesn't work.

enter image description here

Can someone tell me what am I doing wrong?


Your Answer

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

Browse other questions tagged or ask your own question.