[SI-LIST] Re: Do i have to use microstrip lines?
- From: ray jiang <jlray2000@xxxxxxxxx>
- To: steve weir <weirsi@xxxxxxxxxx>
- Date: Thu, 19 May 2005 00:25:06 +0800
Thanks all for your kind help. Your advices are very useful to me!
Ray
On 5/16/05, steve weir <weirsi@xxxxxxxxxx> wrote:
> Ray, at 622mbps, the rise time is likely in the neighborhood of 300ps or
> so. In 300ps, how far do you think you can go before transmission line
> effects are significant? How much timing budget can you sacrifice to
> reflections?
>=20
> As to microstrip, the vendor is probably concerned about via stubs.
>=20
> Steve.
>=20
> At 10:38 PM 5/15/2005 +0800, ray jiang wrote:
> >Hello all,
> > I am designing a high speed board. The signal rate between two
> >components is 622Mbps, according to the datasheet, i have to use
> >microstrip lines whose characteristic impedance is 50Omh. If i put the
> >two components very close and connect the signal line as short as
> >possible, can i avoid using microstrip lines? i think this frequency
> >is not so high that microstirp lines have to be used. Can any one give
> >any comments and ideas? Thank you a lot!
> >
> >--=3D20
> >Best Regards,
> >Ray Jiang
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>=20
>=20
--=20
Best Regards,
Ray Jiang
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