Timeline for Parallel trace signal integrity: Increasing width to match characteristic impedance vs increasing trace gap
Current License: CC BY-SA 4.0
14 events
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| Jun 13, 2020 at 15:07 | history | edited | Matthew T Watson | CC BY-SA 4.0 |
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| Jun 13, 2020 at 14:39 | comment | added | Andy aka | You are using a series terminator and it is that component that defines the impedance. Change if from 50 ohms to circa 100 ohms and route all the way at 10 mil. That's what I'm saying. Please justify why you can't do that. | |
| Jun 13, 2020 at 14:35 | comment | added | Matthew T Watson | I was referring to matching the characteristic impedance of the trace to that of the signal, in which case this would not be a solution? (I'm new to high speed design so correct me if I'm wrong!) | |
| Jun 13, 2020 at 14:31 | history | edited | Matthew T Watson | CC BY-SA 4.0 |
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| Jun 13, 2020 at 14:30 | comment | added | Andy aka | Why not just use 10 mil all the way and a higher value series resistor? | |
| Jun 13, 2020 at 14:21 | history | edited | Matthew T Watson | CC BY-SA 4.0 |
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| Jun 13, 2020 at 14:17 | answer | added | The Photon | timeline score: 1 | |
| Jun 13, 2020 at 14:08 | comment | added | Andy aka | Series or parallel termination resistor? Is that a square (ish) wave of 250 MHz? | |
| Jun 13, 2020 at 14:06 | review | First posts | |||
| Jun 15, 2020 at 7:43 | |||||
| Jun 13, 2020 at 14:05 | comment | added | Andy aka | Add that to the question please. | |
| Jun 13, 2020 at 14:04 | comment | added | Matthew T Watson | Lets say the gap is 2" long, and these are signals for an ultra high speed SD card, so around 250MHz max frequency | |
| Jun 13, 2020 at 14:00 | history | edited | Matthew T Watson | CC BY-SA 4.0 |
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| Jun 13, 2020 at 14:00 | comment | added | Andy aka | How long is the narrow gap and what are the signal spectrums? | |
| Jun 13, 2020 at 13:57 | history | asked | Matthew T Watson | CC BY-SA 4.0 |