[SI-LIST] Information needed on PDN Analysis

  • From: Arun Kumar K <ArunKumar.K@xxxxxxxxxxxxxxxxxxx>
  • To: si-list <si-list@xxxxxxxxxxxxx>
  • Date: Thu, 6 Jul 2017 11:51:02 +0000

Hi All,
I am doing PDN analysis with simulation tool.
I am confused with relation between Target impedence and noise voltage.

Taget impedence will be calculated based on -> Target impedence=Voltage 
tolerence/50% Load current
That means ->Target impedence= Allowed ripple voltage/Transient current

With the same assumption, I am doing the simulation by injecting the 50% load 
current into the Power plane in few ports(sinkpoints)
Each sink points will draw different amount of current.

After doing the simulation based on the above assumption, I am getting a noise 
voltage plot with different frequency( Noise voltage vs Frequency +10MHz 
increment)

How I have to relate noise into the target impdence?



Thanks & Regards
Arunkumar K



L&T Technology Services Ltd

www.LntTechservices.com<http://www.lnttechservices.com/>

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