Forum Discussion
New ContributorTransceiver output characteristic
Hi-
1. Question
In Transceiver Native PHY Intel Arria 10/Cyclone 10 FPGA IP,
In 2GHz, Well done
But 5Ghz, 101010 Voltage Swing Very low voltage
below fig show 10101010 ans 11001100, 11101110
2. Question
In assignment editor, I have "Transmitter voltage swhing" amend to a different value
values 30 is OK!
16, 13 is OK!
But 1-8 is not okay.
This value is compile error(Quartus Pro 18.1)
I was not tested all values(1~31)
Hi Lee,
- It looks like, you are having insertion loss on your channel. Insertion loss generally increases with frequency. To overcome high insertion loss use pre-emphasis.
- During characterization 1-8 is probably not going to open the eye that's why we have disabled it.
In general to get the better results, reduce the voltage swing & increase the pre-emphasis.
Majorly 2 things effects on the insertion loss.
- PCB material
- Width of traces
Also, please go through the guidelines.
Thank you
Kshitij Goel
2 Replies
Kshitij_IntelFrequent Contributor
Hi Lee,
- It looks like, you are having insertion loss on your channel. Insertion loss generally increases with frequency. To overcome high insertion loss use pre-emphasis.
- During characterization 1-8 is probably not going to open the eye that's why we have disabled it.
In general to get the better results, reduce the voltage swing & increase the pre-emphasis.
Majorly 2 things effects on the insertion loss.
- PCB material
- Width of traces
Also, please go through the guidelines.
Thank you
Kshitij Goel
sung_chulHi K**bleep**ij
Thank you!
Your advice has been very helpful in understanding "Transceiver IP."
Sincerely!
