| ??? 04/16/13 21:23 Read: times |
#189659 - signal integrity Responding to: ???'s previous message |
Joseph Hebert said:
If you've ever looked at the old parallel connectors (e.g. printer ribbon cables), they used a technique wherein they alternated signal lines next to gnd lines. They said it was for "shielding," but I suspect it was a form of (perhaps fortuitous) impedance control. It's for signal integrity. It basically forces the return current for each signal line into the adjacent ground line, instead of forcing that return current to find its way to some other ground line. -a |
| Topic | Author | Date |
| Measuring trace impedance with a TDR? | 01/01/70 00:00 | |
| Maybe there's help here ... | 01/01/70 00:00 | |
| Thanks. Hardware/model specific | 01/01/70 00:00 | |
| Beauty contest | 01/01/70 00:00 | |
| Growing your own | 01/01/70 00:00 | |
| What information do you want to extract? | 01/01/70 00:00 | |
| desired information | 01/01/70 00:00 | |
| "pre-loved" | 01/01/70 00:00 | |
| Pre "loved" | 01/01/70 00:00 | |
| Resolution | 01/01/70 00:00 | |
| ??? | 01/01/70 00:00 | |
| Plenty, I'm sure, but ... | 01/01/70 00:00 | |
| cost | 01/01/70 00:00 | |
| Though this is a large and cumbersome instrument ... | 01/01/70 00:00 | |
| Better than standard solutions? | 01/01/70 00:00 | |
| How do they do so? | 01/01/70 00:00 | |
| Magic? | 01/01/70 00:00 | |
| signal integrity | 01/01/70 00:00 | |
Exactly | 01/01/70 00:00 |