[SI-LIST] Re: pcb board capacitors
- From: Paul Levin <levinpa@xxxxxxxxxxxxx>
- To: dan1_st@xxxxxxxxx
- Date: Sun, 04 Dec 2005 23:53:34 -0800
Dear David,
Go to the Johanson Technology website (johansontechnology.com)
and download their free calculator which will show you the
impedance v frequency for their RF capacitors. It will be a
real eye-opener as to how small a capacitor is required to
keep the impedance low out as far as 5 GHz, assuming you need
low impedance from some low frequency to 5 GHz.
Regards,
Paul
___________________
david stern wrote:
>hi
>
>I am designing a board working at 5GHz. The input
>voltage is 3.3v.
>What values of capacitors I have to use in order to
>filter the input voltage how I calculate the capacitor
>values where can i find material about it?
>
>THANKS
>
>DAVID
>
>
>
>
>
>
>
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--
Paul A. Levin
Senior Principal Engineer
Xyratex, Manhattan Beach
(310) 372-7352 - home & office
(310) 291-8199 - cell
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