1. What are the effects as the result of cross talk?
a) Noise effect on a static signal which will change the expected logical value
b) Cross talk delay
c) Both a and b
d) None of the above
2. A steady signal net can have a glitch due to Charged transferred by the switching aggressors through the coupling capacitances.
a) True
b) False
3. The magnitude of the glitch caused is depended upon
a) Slew of the aggressor net
b) Victim net grounded capacitance
c) Victim net driving strength
d) All of the above
4. In general, faster slew is due to Higher output drive strength for the cell driving the aggressor net.
a) True
b) False
5. If coupling capacitance is high, magnitude of the glitch will be
a) Smaller
b) Larger
c) No Change
d) Cannot be determined
6. Which check is used for glitch magnitude and refers to DC noise limits on the input of a cell while ensuring proper logic functionality
a) DC noise margin
b) AC noise margin
c) Both a and b
d) None of the above
7. Overshoot glitch occurs when
a) A rising aggressor couples to a victim net which is steady low
b) A falling aggressor couples to a victim net which is steady low
c) A rising aggressor couples to a victim net which is steady high
d) None of the above
8. Consider a victim net V coupled to aggressor nets A1, A2, A3 and A4. During STA, is it possible that A1, A2 and A4 contribute to rising and overshoot glitches, whereas only A2 and A3 contribute to undershoot and falling glitches
a) Yes, it is possible
b) No, it is not possible
9. The charge required for the coupling capacitance is larger when the coupled net and victim net are switching in the opposite directions.
a) True
b) False
10. How buffer can be used in victim to avoid crosstalk?
11. How spacing helps in reducing crosstalk noise?
12. How shielding avoids crosstalk problem? What exactly happens there?
13. How can you avoid crosstalk?
14. What is cross talk?
15. Why double spacing and multiple vias are used related to clock?
Answers: 1.c 2.a 3.d 4.a 5.b 6.a 7.c 8.a 9.a
For more details click here
https://www.vlsi4freshers.com/2020/04/crosstalk-and-noise.html
For more details click here
https://www.vlsi4freshers.com/2020/04/crosstalk-and-noise.html
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