FPGA Design Interview Questions: - Part 2

FPGA Design Interview Questions: - Part 2

**Entry level FPGA interview questions for 0-3 Exp FPGA Designers**

21. What is skew in the digital signal transmission ?

22. What is clock skew and explain the types ?

23. How push-pull driver works?

23. What is open drain or open collector output and draw the circuit?

24. What is RACE AROUND condition?

25. Difference between Crystal and Oscillator?

26. Difference between DRAM and BRAM?

27. List the different type of memories used ?

28. Draw a simple circuit to LED ?

29.Explain LOW- DROPOUT regulator circuit ?

30. What is the role of reset in digital design ?

31. why ACTIVE LOW RESET is used mostly in the design ?

32.Explain difference between LDO AND SWITCHING REGULATOR ?

32. What is Switching Frequency and the importance ?

33. Benefits of High Switching Frequency?

34. Drawbacks of High Switching Frequency?

35. Explain the duty cycle and the role?

36. Draw a simple circuit to interface PWM signal into a MOSFET?

37. What is linear region operation of MOSFER ? Draw characteristics ?

38. Explain the saturation region operation of the MOSFET ?

39. Draw a simple circuit to connnect pwm from the FPGA to a MOSFET?

40. Explain the operation of MOSFET driver circuits ?