[SI-LIST] Re: Power Plane Noise Injection

  • From: steve weir <weirsi@xxxxxxxxxx>
  • To: si-list@xxxxxxxxxxxxx
  • Date: Thu, 01 Sep 2011 17:47:38 -0700

Jason, the issues at HF is coming up with enough raw power, and then a 
low enough impedance connection to the PDN.  It is much easier to 
characterize devices on a purpose-built test PCB.  A large CPLD/FPGA on 
the test PCB makes a good programmable noise generator.

Steve.
On 9/1/2011 2:21 PM, jason.pritchard@xxxxxxx wrote:
> Hi All,
>
> I have an application that I want to create noise on a power rail and 
> determine the effects of that noise on a device.
>
> 1) What methods have people used to do this type of testing?
> 2) If you use an RF transformer can you recommend a specific type/model that 
> works effectively with the lower impedance of the power planes as a load?
>
> I would like to simulate DC-DC switching noise as well as high frequency 
> noise.
>
> Any suggestions will be helpful.
>
> Thank-you,
> Jason
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Steve Weir
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