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[10GMMF] Reminder for TP2 call 1/13/05



All -
 
Next call
  • Date: Thurs, 1/13/05 (regular day/time)
  • Time: 9:00 AM Pacific
  • Duration: 1:30 max
  • Number: 401-694-1515
  • Access code: 421721#
 
Agenda
  • Attendance
  • Agenda
  • Approve old minutes
  • Progress on tasks and distribution of work (see within previous minutes, below)
    • Progress on TP2 test methodology and code development
      • Comparisons to PIE-D
      • Filter configurations - results from ClariPhy and/or Lew?
      • Document & code status
    • Test patterns - any progress?
    • Nick has asked if we can pre-resolve TP2 comments
      • Easy? - 49,50,81,83,104,105,106,109,111
      • Less easy? - 107,108,110
    • Other?
  • Plans for next call (1/20/05)
Tom
 
----- Original Message -----
Sent: Monday, January 10, 2005 11:06 AM
Subject: [10GMMF] Notes for TP2 call 1/6/05

Attendees
  • Nick Weiner
  • Jan Peeters Weem
  • Piers Dawe
  • Greg Lecheminant
  • Martin Lobel
  • Tom Lindsay
  • John Jaeger
  • Pavel Zivny
  • Norm Swenson
  • Lew Aronson
  • Ali Ghiasi
  • Others who did not ID?
Agenda discussed and approved (see below)
Previous minutes/notes from 12/23 approved
 
Technical progress
  • Objective - resolve as many details as possible by/before comment deadline Jan 7th, 05
  • Waveform capture method
    • Trigger block & timing of pattern key
      • ACTION - Pavel to write detailed comment and submit by 1/7. Tom to help if needed.
    • Noise and jitter control
      • ACTIONS - Pavel to write detailed comment and submit by 1/7. Tom to help if needed.
    • Pattern definition
      • Little progress since last call. Actions are from the previous notes.
      • ACTIONS
        • Choose top 5 patterns with widest variety of 9 bit blocks and white power spectral density. Keep final disparity values below ~1%.
        • Running disparity and max run lengths may be additional criteria, but no clear conclusions on call.
        • ClariPhy (and others?) to run selected patterns through waveshapers and penalty simulator. Compare to PRBSn.
    • EDC simulation tool
      • Norm presented updated summary document of basic approach and assumptions.
      • Laser response should be transmitter response. It is measured with a filter during capture.
      • Some confusion about "reference receiver" between this document and 802.3ae. This should be reviewed and made clear.
        • The reference receiver in this document is based on a matched filter to an ideal rectangular input stream that has a white noise spectral density that is 14.97 dB below the OMA of that input stream.
        • The reference receiver in 802.3ae is an instrument with overall 7.5 GHz Bessel Thomson response.
      • Noise filtering is required for anti-aliasing. Preferences stated to filter only noise with Bessel Thomson (signal already filtered during acquisition). Some discussion that signal filtering may not match noise spectrum in an actual receiver. Present approach may be slightly conservative.
      • ClariPhy is close to releasing MATLAB code for review. If interested in reviewing the code, contact Norm Swenson.
      • ACTIONS - new
        • ClariPhy to test sensitivity of filter configurations. With channels, affect of anti-aliasing filter may be negligible.
        • Lew to check with several TIA suppliers to compare typical signal filtering with noise spectrum.
        • Tom to do some editorial work and submit document in comment by 1/7. DONE.
      • ACTIONS - carryover
        • Corroborate result against PIE-D with common linear pulse shapes (including 47.1 psec Gaussian).
        • Prepare presentation for Jan meeting to capture evolution developed in TP2 con-calls since 1/7.
    • Waveforms & penalty plots
      • Not discussed, but more waveforms from more companies are desired.
      • Future plots should add 47.1 psec Gaussian for baselining.
    • Rise/fall times
      • Nick introduced that rise/fall times, combined with the mask test, may be necessary and sufficient for ensuring TP2 dispersion penalty.
      • Group responded that waveform capture method seems to be progressing well and should work even in cases where waveform might not be "well-behaved".
      • Brief discussion about transmitter stability and method sensitivities concluded that in any case, sensitivities need to be determined and guardbanded by supplier.
    • Mask
      • Concern expressed that present top and bottom mask limits may overly constrain overshoot. Piers will make a comment to relax these masks.
 
Next call
  • Date: Thurs, 1/13/05 (regular day/time)
  • Time: 9:00 AM Pacific
  • Duration: 1:30 max
  • Number: 401-694-1515
  • Access code: 421721#
 
Tom Lindsay
ClariPhy Communications
tom.lindsay@clariphy.com
Phone: (425) 775-7013
Cell: (206) 790-3240

 
----- Original Message -----
Sent: Wednesday, January 05, 2005 9:40 PM
Subject: [10GMMF] Reminder for TP2 call 1/6/05
 
Agenda
  • Attendence
  • Approve agenda
  • Approve old minutes
  • Progress on tasks and distribution of work (see within previous minutes, below)
    • Scope timing, triggering; jitter (Pavel Zivny - any further progress to report?)
    • TP2 test methodology (Norm Swenson) and code development
    • Test patterns (John Ewen spreadsheet) - any progress?
    • Other?
    • Preparation for comments
  • Plans for next call (1/13/05)