[SI-LIST] Re: What is a good method to test the impedance of a PDS?
- From: "Xu, Catherine (ICS)" <xu@xxxxxx>
- To: "kelvin.harding@xxxxxxxxxxxxxxx" <kelvin.harding@xxxxxxxxxxxxxxx>, "si-list@xxxxxxxxxxxxx" <si-list@xxxxxxxxxxxxx>
- Date: Tue, 23 Nov 2010 16:56:45 +0000
Hi, Kelvin,
Impedance analyzer can be used to test input impedance at certain port of a
PCB/PCA if the equipment can cover the frequency range you are interested. You
can also calculate the input impedance by perform 1-port or 2-port S-parameter
measurement using network analyzer. Same for measuring transfer impedance on
PCB/PCA.
You may find this paper helpful if you decide to use S-parameter to calculate
PCB/PCA impedance.
" An Experimental procedure for Characterizing Interconnects to the DC power
Bus on a Multi-layer Printer Circuit Board" Hao Shi, Fei Sha, James L
Drewniak, Thomas P Van Doren and Todd Hubing
Catherine Xu
__________________________________
Lead HW Design Engineer, Ph.D
HP ICS CHIL - San Diego
(858)655-4023
__________________________________
-----Original Message-----
From: si-list-bounce@xxxxxxxxxxxxx [mailto:si-list-bounce@xxxxxxxxxxxxx] On
Behalf Of kelvin.harding@xxxxxxxxxxxxxxx
Sent: Monday, November 22, 2010 2:52 PM
To: si-list@xxxxxxxxxxxxx
Subject: [SI-LIST] What is a good method to test the impedance of a PDS?
How should I test the impedance of:
1) Bare PCB
2) Populated PCB.
What test equipment is required?
How do I calculate the acceptable parameters for the design?
If this is too general then please point me to relevant reading.
Regards,
Kelvin
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