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Dec 14, 2004 23:56

Couple of things ( Read more... )

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Comments 8

mackenzie December 15 2004, 05:46:42 UTC
I want something, but I demand that you not spend any money on it. Bring me a nifty bottle cap or a rock off the side of the road or something.

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fireyice December 15 2004, 09:24:51 UTC
Pointers:
*Run crosstalk simulations
*Place power planes in between signal planes
*Measure the wires lengths
*Pray?
*Talk to Linderman... he'll have some pointers
*Read "High-Speed Digital Design-A Handbook of Black Magic" or some similar book that is more related to what you are doing. But that's a pretty good book... depending on what you are doing, Mike might point you towards the same thing.

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coliningus December 15 2004, 09:47:14 UTC
All I remember is that electrons do get confused running around corners if you make them do it too fast or too often. They start running into the wall or something.

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fireyice December 15 2004, 11:20:57 UTC
*Terminate Lines!!! That one is important. It'll cut your voltage but it'll reduce/eliminate reflections.

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salnem December 29 2004, 06:40:11 UTC
Uh, I finished the board a week ago... but I wanted to respond to your comments. I can terminate the lines because they're analog RF lines and their magnitude is rather important. I had to do some impedance matching (75 and 50 ohm lines) to prevent reflections... And it was only a two layer board, so no power/ground planes.

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flwrbdamazon December 15 2004, 14:57:41 UTC
I'd like some more info on the demise of WWJD... I know it happened, but I don't know why.

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snuff_daddy December 15 2004, 23:47:58 UTC
mostly because it was just time for it to end. my journal has about as clear an answer as you are going to get out of any of us.

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chemmudder December 15 2004, 17:13:11 UTC
Yo, I am going to a "White Trash X-mas" on saturday...if you wanna go, lemme know. All you gotta do is dress like trash and bring a 40. Should be really awesome.

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