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Re: [10GBT] More on the PAM12 emissions

I thought we were going to keep these discussions technical ...

>>sailesh rao writes: 7/25/2004
> OK, I agree with you to keep these e-mails technical in order to advance
the discussion.

Rather than change the subject, I, for one, would also like to see your
analysis corrected for the errors that were pointed out.  Let's settle this
so called ripple "issue" rather than leave it hanging.  If it is a problem
for some reason not yet shown, there are solutions that can be explored.  I
don't see where these frame sync's are a problem when the analysis is done
correctly with a 120kHz resolution bandwidth.

  - Scott

Dr. Scott Powell
Senior Manager, Ethernet PHYs
Broadcom Corp.

-----Original Message-----
From: [] On Behalf
Of sailesh rao
Sent: Monday, July 26, 2004 4:58 PM
Subject: Re: [10GBT] More on the PAM12 emissions


I have a better idea: please withdraw the PAM12 proposal and let us all
focus on the PAM8 proposal that doesn't have any of these issues.

Sailesh Rao.

>From: Glenn Golden <>
>Subject: Re: [10GBT] More on the PAM12 emissions
>Date: Mon, 26 Jul 2004 17:48:26 -0600
>sailesh rao writes:
> >
> > Same response as to Jose.
> >
>I'm sorry Sailesh, I feel that the onus is on you now now.  Read my
>email more carefully and I believe you'll see why your response to Jose
>is incorrect.
> > Please go ahead and fix it yourself. Your observations don't negate
> > the point I've been trying to make for the past three days - if we
> > keep
> > the same patterns repeatedly as proposed in powell_1_0704.pdf, spiky
> > happens in the PSD.
>Yes, that's right, spikey stuff happens in the PSD. And the peaks of
>the spikey stuff are 23 dB below the data, where no one doing EMI
>testing can see them.
>Please fix the errors we've told you about, set the resolution
>bandwidth in accordance to the EMI testing standard, and then show us
>the ripple.
>- Glenn

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