10HSI-S008-R0-C datasheet(68/71 Pages) HIROSE

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Signal Integrity Report – IT3 (32mm)

Page 68

Figure 113 Measurement vs. simulation correlation of single-ended S parameters (for IT3-32mm) as shown in Figure 111

5.3.2 Time-Domain NEXT and FEXT

Single-ended NEXT and FEXT were measured for 14 surrounding neighbors of the center port

(see Figure 111) and converted into time-domain data. Figure 114 and Figure 115 show the

maximum single-ended NEXT and FEXT (in %) from each neighbor with step input at 60ps (20%

to 80%) rise time with 2.625 GHz bandwidth. The center box corresponds to the absolute sum of NEXT

and FEXT from all 14 surrounding ports.

Figure 114 Single-ended cross-talk (in %) from measurements for step input @ 120ps (20% to 80%) rise time and 2.625GHz

BW for center port 15 and 14 FEXT

Figure 115 Single-ended cross-talk (in %) from measurements for step input @ 120ps (20% to 80%) rise time and 2.625GHz

BW for center port 15 and 14 NEXT

Note: We measured crosstalk values of the inner wafer’s pairs with respect to the center port and

replicated them to the outer column 1.

10HSI-S008-R0-C Datasheet(PDF) 68 Page - Hirose Electric