SYSTEM ANALYSIS USING RESPONSE SURFACE MODELING - Advanced Signal Integrity for High-Speed Digital Design - page 616

TABLE 14-8. Summary of Significance Test Results for Individual Model Terms
Fit Coefficient Standard Error t -Ratio Reject H 0 ?

Model Term Covariance, C i,I Eye Height Eye Width Eye Height Eye Width Eye Height Eye Width Eye Height Eye Width

Intercept 0.12130 95.51799 89.10651 1.116 1.042 85.58959 85.51488

R Tx 0.05556 2.32444 − 1 . 94444 0.755 0.705 3.07873 − 2 . 75808

Z diff 0.05556 0.12056 0.55556 0.755 0.705 0.15968 0.78802

R TT 0.05556 9.55222 − 0 . 44444 0.755 0.705 12.65195 − 0 . 63042

L 0.05556 − 30 . 81556 − 10 . 83333 0.755 0.705 − 40 . 81531 − 15 . 36643

EQ 0.05556 − 0 . 28778 − 7 . 05556 0.755 0.705 − 0 . 38116 − 10 . 00788

R Tx · R Tx 0.40828 0.18752 − 0 . 13314 2.047 1.911 0.09160 − 0 . 06967

R Tx · Z diff 0.06250 − 2 . 18063 − 0 . 56250 0.801 0.748 − 2 . 72238 − 0 . 75201

Z diff · Z diff 0.40828 − 1 . 19749 0.36686 2.047 1.911 − 0 . 58500 0.19197

R Tx · R TT 0.06250 1.26063 1.18750 0.801 0.748 1.57381 1.58757

Z diff · R TT 0.06250 − 2 . 43813 − 1 . 56250 0.801 0.748 − 3 . 04385 − 2 . 08890

R TT · R TT 0.40828 − 0 . 44249 0.36686 2.047 1.911 − 0 . 21616 0.19197

R Tx · L 0.06250 − 3 . 88563 − 1 . 93750 0.801 0.748 − 4 . 85097 − 2 . 59024

Z diff · L 0.06250 − 0 . 02938 0.56250 0.801 0.748 − 0 . 03667 0.75201

R TT · L 0.06250 − 4 . 43813 0.31250 0.801 0.748 − 5 . 54073 0.41778

L · L 0.40828 − 2 . 97249 − 4 . 13314 2.047 1.911 − 1 . 45212 − 2 . 16281

R Tx · EQ 0.06250 − 1 . 77438 − 1 . 56250 0.801 0.748 − 2 . 21520 − 2 . 08890

Z diff · EQ 0.06250 0.22938 1.43750 0.801 0.748 0.28636 1.92179

R TT · EQ 0.06250 − 2 . 11688 − 0 . 56250 0.801 0.748 − 2 . 64279 − 0 . 75201

L · EQ 0.06250 − 20 . 42063 − 8 . 93750 0.801 0.748 − 25 . 49391 − 11 . 94853

EQ · EQ 0.40828 − 14 . 61249 − 8 . 13314 2.047 1.911 − 7 . 13849 − 4 . 25596