Questions of Test: Signal Integrity Basics - Part 2

1

Which of the following is not true about Near End Cross talk (NEXT)

2

Which of the following will NOT lead to reduction in cross talk level

3

Assume a ramp signal of 0 to 100 % rise time of Tr  is incident on a transmission line of length equivalent to propagation delay of Tp. Tp is much greater than tr. Which one best describes the duration of the backward cross talk signal.

4

The shape of the forward cross talk signal is

5

Consider a pair of microstrip traces spaced at distance D apart. The separation from the ground plane is H. Which of these cases generates greatest amount of cross talk.

6

Consider guard traces inserted in between two traces between a pair of microstrip. Which one of the following cases is not true.

7

Which of the following is not likely to cause increase in EMI radiation

8

If the separation between the trace and the ground layer is increased, the radiation

9

A high speed digital signal has a 10%  to 90% rise time of about 175 psec. What is the approximate bandwidth of the signal?

10

An Oscilloscope has rated bandwidth of 10 GHz. Using this oscilloscope the 10%to 90% rise time of this signal is observed to be 60 ps. What is the approximate actual rise time of the signal.