Timeline for When does differential signalling become necessary [closed]
Current License: CC BY-SA 4.0
10 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Dec 14, 2018 at 12:52 | history | closed |
Elliot Alderson Finbarr Dwayne Reid RoyC Lior Bilia |
Opinion-based | |
| Dec 10, 2018 at 12:15 | review | Close votes | |||
| Dec 14, 2018 at 12:52 | |||||
| Dec 10, 2018 at 9:58 | comment | added | Andy aka | @BeB00 Only my brain and other answers given on this site. | |
| Dec 10, 2018 at 9:55 | comment | added | BeB00 | @Andyaka wikipedia says this is correct, but doesn't provide any sources, or really give much info about the benefits of balanced impedances for non-differential signals. Do you have a good source that can explain further? | |
| Dec 10, 2018 at 9:45 | comment | added | Andy aka | I think you are getting confused between balanced signalling and transmitting a differential signal. Transmitting a differential signal reduces emissions and doesn't really contribute to making a reliable communication. It's balanced impedances that make a reliable communication and differential signalling doesn't really bring anything to the party other than lower external emissions. | |
| Dec 10, 2018 at 7:42 | answer | added | CL. | timeline score: 2 | |
| Dec 10, 2018 at 4:38 | history | edited | BeB00 | CC BY-SA 4.0 |
added 587 characters in body
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| Dec 10, 2018 at 4:29 | comment | added | analogsystemsrf | Define the EMI environment to tolerate (healthy data eyes at the receiver, despite Electric and magnetic and common-mode trash). An electric train speed controller ---- 2,000 amps at 5,000 volts, switching in 1uS---- induces nearly 100 volts in what should be a GROUND PLANE. In that situation, the existing methods use FIBER OPTIC triggers to the IGBTs. Differentianl signaling is not robust enough. | |
| Dec 10, 2018 at 4:14 | comment | added | user105652 | You need to clarify what you mean by "differential". There is the USB type which has a center point well above zero volts, then there is LVDS which is very fast, up to GHZ speeds. Better cables and trace control and drivers are pushing speeds up to 10gbps. Sata is now up to 6gbps. The fastest of these have severe trace or cable length limits. | |
| Dec 10, 2018 at 3:53 | history | asked | BeB00 | CC BY-SA 4.0 |