[SI-LIST] Re: UltraCAD ESR and Bypass Capacitor Caculator
- From: Chris Cheng <chris.cheng@xxxxxxxxxxxx>
- To: "'si-list@xxxxxxxxxxxxx'" <si-list@xxxxxxxxxxxxx>
- Date: Tue, 12 Aug 2003 12:41:22 -0700
Then what's the use of it if it can't take the placement into consideration
and calculate loop inductance of the leads/pads of the caps in the PCB which
I think will easily dominate over the ESL of the cap ?
-----Original Message-----
From: Doug Brooks [mailto:doug@xxxxxxxxxx]
Sent: Tuesday, August 12, 2003 9:13 AM
To: si-list@xxxxxxxxxxxxx
Subject: [SI-LIST] Re: UltraCAD ESR and Bypass Capacitor Caculator
While I've enjoyed the entire discussion under this heading, I feel like I
have to say once again that the UltraCAD calculator says NOTHING at all
about placement. THAT discussion picked up under this heading some how. Our
calculator is just one (repeat "one") way to calculate a a complex
impedance function.
Doug
At 03:56 PM 8/12/2003 +1000, you wrote:
> it may be a good idea to put
Doug Brooks' new book, "Signal Integrity Issues and Printed Circuit Board
Design" has just been released by Prentice Hall. See details and ordering
info at www.ultracad.com
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