redriver_25GAUI

Hi Gang,

We only have ethernet driver support for our devices. You can find out product folder here: https://www.ti.com/interface/ethernet/phys/products.html 

It sounds like you are looking for support for Multi-Gig PHY devices, is this correct? Unfortunately, we do not have any Multi-Gig PHY devices at this time.

Best regards,

Melissa

Hi Gang,

We have the following redrivers which support 25GAUI:

• DS280BR810
• DS280BR820
• DS280MB810

These redrivers will support 10G data rates as well, although equalization is better optimized for line rates in the range of 25-28 Gbps.

We have the quite a few redrivers with equalization optimized for line rates in the range of 10-12.5 Gbps. I suggest browsing these options.

https://www.ti.com/interface/ethernet/retimers-redrivers-mux-buffers/products.html#1241=Mux%20Buffer%3BMux%20buffer%3BRedriver&1389=Fibre%20Channel&1326max=10.3%3B12.5&

Best,

Lucas

Hi Gang,

Gang Liu said:

(1) For 25GAUI, I check the datasheet of DS280BR820, it does not mention exactly 25GAUI in its application. Is it true that this redriver is protocol independent, and only cares about the speed?

Yes, all of our ethernet redrivers are protocol independent and can support protocols such as auto-negotiation and link training. Our redrivers do not check data rate of the signal as they have a linear signal path which applies equalization. But the equalization profile of DS280BR820 is optimized for 25-28G signals.

Note that our ethernet retimers are protocol independent as well but do not support auto-negotiation or link training because they do not have a linear signal chain. I did not recommend any retimer PNs to you as you requested redrivers.

Gang Liu said:

(2) For 10G redrivers, it's the same. As I search for SFI/XFI, I did not find any parts in this list.

The 10G redriver selections I provided are marked as supporting "fibre channel" which should cover SFI and XFI applications.

Gang Liu said:

I am not sure what is the difference between SFI and XFI in terms of electrical wise. Is it true that SFI ethernet controllers can support XFI as well, but XFI does not support SFI?

I suggest reading these standards which cover electrical specifications for XFI and SFI.

https://www.gigalight.com/downloads/standards/INF-8077i.pdf\

https://www.gigalight.com/downloads/standards/sff-8431.pdf

Best,

Lucas

Hi Gang,

Yes typically our redrivers are simpler devices than our retimers.

I'll be closing this thread since I believe I answered your questions, feel free to reply if you have any followup questions.

If you need any help with redriver bringup don't hesitate to open a new E2E thread.

Best,

Lucas