This is the FCSM2 and FC-MSQS modeling page

For the FC-PI-4 (SFP+) Modeling Page click this line

Table of contents:

• Tyco connector models
• FCI Link analysis and component  S4P files
• Molex Backplane & SCA2 tests
• Passivity and causality on MSQS S4P files
• A different equation for determining FIR taps for the Oculus modeling tool.

 

Tyco connector models:

Procedure for acquiring the Tyco .s4p file:

1. For the TYCO connector models go to link
   http://www.tycoelectronics.com/products/simulation/scripts/models.asp

2. Use the pull-down menu to search for the following models:
   PT (SFP and XFP)

3. Go to the line titled
   "ENHANCED SMALL FORM-FACTOR PLUGGABLE (SFP & XFP), 0.8MM PITCH, 20 and 30 POSITION"
   And choose "Request S-Parameters"

4. Fill out the short form, and the .s4p file will be sent

FCI link analysis, board trace and package trace models

GENESYS Link Modeling Vs. MATLAB Link Modeling	Kevin Oursler	koursler@fciconnect.com	GENESYS Vs MATLAB.pdf	12/12/2005
S-param file for the board trace	Kevin Oursler	koursler@fciconnect.com	05-489v1.txt	12/12/2005
S-param file for the package trace	Kevin Oursler	koursler@fciconnect.com	05-490v1.txt	12/12/2005
S-param file for the Connector	Kevin Oursler	koursler@fciconnect.com	eSCA2_SMT_Plug_to TH_Rec_passive.s4p	12/12/2005

Molex Backplane and SCA2 Channel Test Cases

Molex presentation

• Molex Case 1 (15” FR408 Backplane channel, bottom routed, moderate crosstalk)
  • Through Channel
  • NEXT Aggressors N1
  • NEXT Aggressors N2
  • NEXT Aggressors N3
  • NEXT Aggressors N4
  • FEXT Aggressors F1
  • FEXT Aggressors F2
  • FEXT Aggressors F3

   

• Molex Case 2 (25” FR408 Backplane channel, backdrilled, moderate crosstalk)
  • Through Channel
  • NEXT Aggressors N1
  • NEXT Aggressors N2
  • NEXT Aggressors N3
  • NEXT Aggressors N4
  • FEXT Aggressors F1
  • FEXT Aggressors F2
  • FEXT Aggressors F3

   

• Molex Case 3 (25” FR408 Backplane channel, backdrilled, high crosstalk)
• • Through Channel
  • NEXT Aggressors N1
  • NEXT Aggressors N2
  • NEXT Aggressors N3
  • NEXT Aggressors N4
  • FEXT Aggressors F1
  • FEXT Aggressors F2
  • FEXT Aggressors F3

   

• Molex Case 4 (30” FR408 Backplane channel, backdrilled, moderate crosstalk)
  • Through Channel
  • NEXT Aggressors N1
  • NEXT Aggressors N2
  • NEXT Aggressors N3
  • NEXT Aggressors N4
  • FEXT Aggressors F1
  • FEXT Aggressors F2
  • FEXT Aggressors F3

   

• Molex Case 5 (15” FR408 Backplane channel, via stub, moderate crosstalk)
  • Through Channel
  • NEXT Aggressors N1
  • NEXT Aggressors N2
  • NEXT Aggressors N3
  • NEXT Aggressors N4
  • FEXT Aggressors F1
  • FEXT Aggressors F2
  • FEXT Aggressors F3

   

• StatEye v3.0f results at 10 G (IEEE 802.3ap settings) for the above
• StaEye v3.0f User Parameters file example (User_parameters_molex_C1.m) for simulation settings
• Molex SCA2 Channel model (single two-connector channel, 18” FR408 backplane, 5 mil trace on each line card)

Passivity and causality on MSQS S4P files

Molex beta version tool files

PassivityTest/PassivityTest.m

PassivityTest/SXPParse.m

PassivityTest/Test.s4p

 

The equation for determining FIR taps for the Oculus modeling tool.

The Oculus modeling tool requires a dferent .... than metioned in

If you have MathCAD then you can download the Tyco MathCAD file.

To review, the Transmitter Model FIR definition is C0 = 0.81, C1 = -0.15, C2 = -0.04, with a 1.0 Vp-p launch.

The taps and launch for Oculus for the above are calculated using the following equations:

Tap1 = {[C0/(C0+C1+C2)]-1}*100 = 30.645

Tap2 = {[(C0+C1)/(C0+C1+C2)]-1}*100 = 6.452

Launch = C0/(1+Tap1/100) = 0.62