Re: [10GBT] PAM8 and PAM12 sys time domain analysis
I have one other observation that I would like you to comment on:
I ran solarsep_varlen7a.m with the whitedBm parameter changed to -140 to
estimate your time domain simulation losses. Here's the final tally:
SNR Margin at -150dBm/Hz (solarsep_varlen7a.m, Model 3)
SNR Margin at -140dBm/Hz (solarsep_varlen7a.m, Model 3)
SNR Margin at -140dBm/Hz (Albert time domain simulations, Model 3)
If I discount 1dB for the transformer losses from the solarsep_varlen7a SNR
margins since these are additional losses in your time domain simulations, I
Albert Time domain simulation loss for PAM8: 0.5dB
Albert Time domain simulation loss for PAM12: 1.2dB
Can you please clarify if the increased loss in the PAM12 time domain
simulations are due to the clock recovery loops and/or the finite precision
arithmetic used in these simulations?
Finally, if the chair would permit me a short non-technical comment - ahem -
I would like to compliment you on your professional integrity for sharing
these simulation results.
>From: Albert Vareljian <albertv@IEEE.ORG>
>Reply-To: "IEEE P802.3an" <STDS-802-3-10GBT@listserv.ieee.org>
>Subject: [10GBT] PAM8 and PAM12 sys time domain analysis
>Date: Mon, 26 Jul 2004 19:57:28 -0700
>Pls find attached pdf report on PAM8 and PAM12 systems
>time domain simulation and comparative analysis.
><< PAM8_PAM12.pdf >>
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