Friday, June 19, 2009

Top 10 Reasons NOT to Care About Signal Integrity

(Syndicated content from: http://signal-integrity-tips.com/2009/top-10-reasons-not-to-care-about-signal-integrity/)

10. Hey! My chip meets spec. It's the OEM's job to design it in right.



9. The speed of light is 670,616,629.4 miles per hours. That's really really fast.



8. I never had that problem on my last project, and this revision is only 30% faster.



7. The via stubs doesn't connect to anything. What harm can they do?



6. My PCB vendor specs means I won't have a problem: "Loss tangent - pretty close to zero. Roughness - almost no roughness. Metal resistivity - are you kidding? Copper's a real good conductor."



5. Skin effect? Isn't that something to do with Photoshop?



4. S-parameters? No thanks. Don't you have an RLC SPICE model?



3. 10 picoseconds? Listen to me: 10 picoseconds to ten decimal places is 0.0000000000 seconds.



2. If it doesn't work we can always step up to Rogers' material.



And the number 1 reason NOT to care about signal integrity is:



1. We're hoping lower speed products will make a come back!



TGIF. Have a good weekend! :-)