R:[SI-LIST] : High frequency decoupling Capacitors

Rossi Giuseppe (g.rossi@CRF.IT)
Wed, 21 Jul 1999 09:04:54 +0200

For what is my experience:
I'had done some years ago a pretty large campaign of SMD cap
characterisation,
the bottom line is: for what concern parasitc inductance it is not a =
matter
of dielectric
but only of the size of the cap , and of course of geometrical =
consideration
of=20
mounting on the pcb

regard

Ing. Giuseppe Rossi
Manager
Electromagnetic Compatibility and Radiofrequency
Fiat Research Centre
Strada Torino 50
10043 Orbassano (To)
Italy

ph: ++39 011 9083 114
fax: ++39 011 9083083
e-mail: g.rossi@crf.it
www.crf.it
=20

> ----------
> Da: Ritesh Kapahi[SMTP:rkapahi@idt.com]
> Risposta a: si-list@silab.eng.sun.com
> Inviato: mercoled=EC 21 luglio 1999 3.36
> A: si-list@silab.eng.sun.com
> Oggetto: [SI-LIST] : High frequency decoupling Capacitors
>=20
> Hi all
> I am currently designing a board with multiple Gigabit Ethernet chips =
and
> I
> am looking for some decoupling capacitors which are good beyond GHz =
range.
> I
> went through lots of materials for ceramic capacitors even the low
> inductance ones but the effective capacitance comes down drastically =
as
> the
> frequency goes beyond 100MHz. Can somebody help me with some pointers =
on
> the
> same
> Thanx
> Ritesh Kapahi
> Design Engineer
> Systems Technology group
> Integrated Devices Technology, Inc.
> 2975 Stender Way, M/S O-314
> Santa Clara, CA 95054
> Tel: (408)-654-6749
> Fax: (408)-654-6747
> Email: rkapahi@idt.com
> <http://www.idt.com>
>=20
>=20
>=20
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>=20

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