Interconnect in High speed circuits??

[barath_87]

How or why does an interconnect in a high speed design behave like a distributed network with resistance,inductance and capacitance instead of a lumped one ...
thank you in advance..

 

[hrushitha]

can anyone reply to the above question??

 

[FvM]

In principle any electric circuit with non-zero dimensions has "distributed" properties respectively has to be analyzed as transmission line. It depends on the ratio of dimension to wavelength of signal frequency, if distributed properties have noticeable effects.

In case of the transnational overhead tranmission lines, this property can't be ignored even at 50 Hz.

 

[Lord Banshee]

yep everything is a transmission line and at high frequencies the effects show up more. I would either look at some e-field or better yet RF circuits books.

I do have a question about this topic, how does one in the field today work on this problem? For example, intel's FSB. Do they make matching networks for the given frequency to give an acceptable low enough reflection that it does not cause a problems to the signal?

 

[Siniša]

Look up stripline and microstrip line.

 

[muralicrl]

Hi,

When you see the equivalent circuit diagram of any given circuit, for the high speed applications, the effect of R,C and L is very severe when compared to low frequency of operation.

If you need more details, contact me.

Regards,

N.Muralidhara
CRL-BEL

 

[steshenko]

Use Hyperlinx from mentor to simulation