DS250DF810: DS250DF810

Naveenchandra Veerabhadra Swamy

Part Number: DS250DF810

Hello TI team,

We are using DS250DF810 retimer device for one of our product design. So, presently I am performing signal integrity analysis for one differential PCB back plane channel. we were received IBIS AMI model for the same device. We are getting two different SI results at the RX side (i.e. after the post DFE, CTLE auto enabled equalisation) when we are configured "RX Config" as default i.e "1" and changed it as "0". Both the results are different. Can I know what are these RX config settings? which Rx config settings should we use for our simulations. Since by default settings signals are more noisy and results are very idealistic when we are configured it as "0".

Please can any one help us on this? It would be great if we can resolve these issues asap.

Thanks,

Naveen

over 6 years ago

0 Nasser Mohammadi over 6 years ago

TI__Guru* 93670 points

Hi Naveen,

This parameter - Rx_config - sets the output of the Rx to either post or pre-sliced waveform.
0 - Output set to the output of the slicer
1 - Output set to the input of the slicer (DFE summation point). This is default setting.

Regards,,nasser

0 Naveenchandra Veerabhadra Swamy over 6 years ago in reply to Nasser Mohammadi

Prodigy 170 points

Thanks Nasser,

I appreciate you for your kind help on this issue. I understood now. So, SI prospective we are getting enough eye width and amplitude margin when we targeted BER as 10^-12. However, when we use SigCon GUI of same TI re-timers, PRBS patterns are not auto detecting. Did you see these kind of issues earlier?. could you please help me on this? It would be very helpful.

Thanks,'

Naveen

0 Rodrigo Natal over 6 years ago in reply to Naveenchandra Veerabhadra Swamy

TI__Mastermind 19235 points

Hi Naveen,

We have not observed these issues. TI uses SigCon Architect quite extensively for retimer evaluation, and we have validated successful operation of both the DS250DF810 retimer PRBS generator and PRBS checker functional blocks with this GUI.

Regards,

Rodrigo Natal

HSSC Applications Engineer

Interface

Interface forum

DS250DF810: DS250DF810