Figure Q5 shows the cross-section of the typical layout of two tracks (A and B) on a printed circuit board with a ground plane C. The tracks are terminated as shown in the figure, with track A carrying digital signals. You can assume that the lines are electrically short. Draw the equivalent circuit that models the crosstalk and write down a relation between the voltage applied to track A and the voltage coupled on to track B at low frequencies, VNE- (a) (b) If the total mutual inductance between the two tracks L =9 nH, and the total mutual capacitance between the two tracks is C = 2 pF, calculate: alitud

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Publisher:Robert L. Boylestad
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Figure Q5 shows the cross-section of the typical layout of two tracks (A and B) on a
printed circuit board with a ground plane C. The tracks are terminated as shown in the
figure, with track A carrying digital signals. You can assume that the lines are
electrically short.
Q5
Draw the equivalent circuit that models the crosstalk and write down a
relation between the voltage applied to track A and the voltage coupled on to
track B at low frequencies, VNE-
(a)
(b)
If the total mutual inductance between the two tracks L =9 nH, and the total
mutual capacitance between the two tracks is C =2 pF, calculate:
(i)
the amplitude of the near-end pulse VNE-
the amplitude of the near-end pulse VNE if the driven line is terminated
in a short circuit instead. Comment on the crosstalk.
(ii)
В
C
50 Q
50 Ω
V(t)
A
B
50 ΩV
VE 3 50 2
Vat)*
5 V
50 ns
50 ns
1 μs
Figure Q5
Transcribed Image Text:Figure Q5 shows the cross-section of the typical layout of two tracks (A and B) on a printed circuit board with a ground plane C. The tracks are terminated as shown in the figure, with track A carrying digital signals. You can assume that the lines are electrically short. Q5 Draw the equivalent circuit that models the crosstalk and write down a relation between the voltage applied to track A and the voltage coupled on to track B at low frequencies, VNE- (a) (b) If the total mutual inductance between the two tracks L =9 nH, and the total mutual capacitance between the two tracks is C =2 pF, calculate: (i) the amplitude of the near-end pulse VNE- the amplitude of the near-end pulse VNE if the driven line is terminated in a short circuit instead. Comment on the crosstalk. (ii) В C 50 Q 50 Ω V(t) A B 50 ΩV VE 3 50 2 Vat)* 5 V 50 ns 50 ns 1 μs Figure Q5
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