CROSSTALK - Advanced Signal Integrity for High-Speed Digital Design - page 195

4-2 For coupled striplines from Problem 4-1, calculate the near- and far-end
noise for the isolated switching case, and compare your results against
simulation with each line terminated at both ends in the characteristic
impedance calculated.
4-3 Use the SLEM method to calculate the effective impedance and propa-
gation velocity for the coupled striplines shown whose capacitance and
inductance matrices are shown below when all three lines switch in the
same direction. Compare the propagation delay for a 0.5-m coupled length
when only the middle line switches.

10 − 7 10 − 8 10 − 8 3 . 480 × 5 . 268 × 1 . 687 ×

10 − 8 10 − 7 10 − 8 L = 5 . 268 × 3 . 461 × 5 . 268 × H / m

10 − 8 10 − 8 10 − 7 1 . 687 × 5 . 268 × 3 . 480 ×

10 − 10 10 − 11 10 − 11 1 . 087 × − 1 . 172 × − 7 . 918 ×

10 − 11 10 − 10 10 − 11

C = − 1 . 172 × 1 . 105 × − 1 . 172 × F / m

10 − 11 10 − 11 10 − 10

− 7 . 918 × − 1 . 172 × 1 . 087 ×

4-4 Estimate crosstalk pulse amplitudes and pulse widths on the middle lines
of the three-line system from Problem 4-3 when the two outer lines are
switching from low to high. Assume that each line is terminated at both
ends in its characteristic impedance. Compare your results against a fully
coupled simulation.
4-5 Sketch the far-end crosstalk pulse for a two-line case with no termination
at the near end, and matched termination at the far end.
4-6 Use the inductance and capacitance matrices below to determine the
switching activity on lines 1 and 2, given the waveform on line 3 in
Figure 4-32.

10 − 7 10 − 8 10 − 9

× × ×

3 . 544 1 . 914 5 . 161

10 − 8 10 − 7 10 − 8

L = 1 . 914 × 3 . 826 × 1 . 914 × H / m

10 − 9 10 − 8 10 − 7 5 . 161 × 1 . 914 × 3 . 544 ×

10 − 11 10 − 11 10 − 11 8 . 266 × − 1 . 108 × − 2 . 354 ×

10 − 11 10 − 10 10 − 11

C = − 1 . 108 × 1 . 001 × − 1 . 108 × F / m

10 − 11 10 − 11 10 − 11 − 2 . 354 × − 1 . 108 × 8 . 266 ×

4-7 Use the inductance and capacitance matrices from Problem 4-6 to deter-
mine the switching activity on lines 1 and 3 given the waveform on line
2 in Figure 4-33.