Talk:Differential signaling

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I would have included all sorts of other technologies under the topic of differential signaling, including RS-422, RS-485, ethernet and even MIDI. Is there some technical reason these have not been included in these collective topics yet? Is there a better term to use for the technology involved in these other major signalling technologies?

Charlie Richmond 23:05, 5 December 2005 (UTC)

• Looks like a clear candidate for merging to me. --ragesoss 16:26, 18 December 2005 (UTC)

So what do we do now? Charlie Richmond 11:35, 19 December 2005 (UTC)

Differential signaling just means you have two conductors and that you send your signal as a difference of voltages (or currents) rather than as the voltage (current) on a single wire (single ended singnaling). There are a host of circuit families that fall under the heading of differential signaling, including: current mode logic (CML), emitter coupled logic (ECL), positive supply emitter coupled logic (PECL), low-voltage ecl/pecl (LVECL/LVPECL), LVDS and the others mentioned (though I'm not an expert on RS-422, RS-485, or MIDI). These differences between these families have to do with where the termination is referenced, what the common-mode levels are set to, how large a differential signal amplitude is required, etc. The term "Differential signaling" is a generic topic which I think deserves its own entry. Citing examples like LVDS, ECL, CML, RS-422, etc might be useful. The latter, RS-422, is a signalling standard which describes an electrical interface and communications protocols. I don't see how it would be correct to merge the generic topic of "differential signaling" with any of the specific I/O standards cited.

It would be wrong to merge this article with LVDS. LVDS is a specific technology, whilst this article encompasses all forms of differential signalling. --Heron 17:51, 17 March 2006 (UTC)

As above, I say no merge. A link in the other page to here is fine. -- RevRagnarok 01:32, 3 May 2006 (UTC)

Agreed with Heron... it would be wrong to merge unless every type of differential signal was pulled into the article (also not a wise thing to do). There are lots of different types of differential signals, LVDS is just one type. Mrand 23:20, 7 June 2006 (UTC)

[edit] Two l's?

Single-ended signalling has two l's while Differential signaling only has one l. We need to make this consistent. 129.162.1.32 13:58, 16 October 2006 (UTC)

UK vs US spelling... This situation is rather contentious on Wikipedia, and it's unlikely there will be a standard any time soon (current policy is just, stick with whatever the article was originally written in unless the article is clearly written about a US or UK subject). -- mattb @ 2006-10-16T15:18Z