VLSI Interview Questions- Part 4

1. What is rule of ten?

2. Define Noise Margin?

3. Design a controlled inverter?

4. Define Fan-in?

5. Why Open collector Outputs are provided in IC's?

6. What is meant by RoHS compliant?

7. Convert Octal(728) into decimal

8. An analog signal is sampled. What is the kind of signal now exist at the output of sampler?

9. A 10 bit ADC is given to sample a +/- 5V signal. What is resoulution of the ADC?

10. What is FIR? What is that which is finite?

11. What is difference between Glitch and Jitter?

12. What is the Latch up problem?

13. What are the timing components of a latch's clock and F/F?

14. Given 3 types of clocking ie Pulse mode clocking, Edge triggered clocking, Two Phase
Clocking which one do you chose and why?

15. Why is hold time negative sometimes and what does it signify?