CROSSTALK - Advanced Signal Integrity for High-Speed Digital Design - page 170

t = 0

Z 0 Z 0

Aggressor: Z 0 , t d , I

Near-end × talk pulse at t = 0

Z 0 Z 0

Victim: Z 0 , t d , I

Far-end × talk pulse at t = 0

(a)

t = ½ t d ⋅ I

Z 0

Aggressor: Z 0 , t d , I

Near-end × talk pulse at t = ½ t d ⋅ I

Z 0 Z 0

Victim: Z 0 , t d , I

Far-end × talk pulse at t = ½ t d ⋅ I
(b)

t = t d ⋅ I

Z 0 , t d , I

Near-end × talk pulse at t = t d ⋅ I

Z 0 , t d , I

Far-end × talk pulse at t = t d ⋅ I

(c)

t = 2 t d ⋅ I

Z 0

Z 0 , t d , I

Near-end talk pulse at t = 2 t d ⋅ I

×

Z 0 Z 0

Z 0 , t d , I

(d)

Figure 4-22 Summary of propagation of forward- and backward-coupled noise: (a) ini-
tial wave launch; (b) halfway down the line; (c) one full trip down the line; (d) round
trip.