[SI-LIST] Target Impedance in PCB power plane...
- From: "Padmanaban Balamuraleedharan - TLS, Chennai" <Padmanabanb@xxxxxx>
- To: "silist" <si-list@xxxxxxxxxxxxx>
- Date: Tue, 19 Sep 2006 11:31:23 +0530
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Hi all,
=20
Whether target impedance of power plane needs to be kept below certain =
value
throughout the operating spectrum? if yes, Why? Current consumption at
different frequencies are different in the spectrum, right? Eg, =
Switching
current consumption occurs at multiples of its fundamental switching
frequencies at different magnitudes. So we need to consider the current
distribution instead of switching current alone. If I'm wrong, correct =
me.
How we need to fix the threshold limit for the target impedance of the =
power
plane throughout the operating frequency?
=20
Thanks in advance.
=20
Regards,
Padmanaban
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