Analog electronics company placement written test questions

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  1. If A.B = 0, prove that A xor B = A or B
  2. CMOS inverter with P and N devices interchanged. Draw the o/p waveform for square wave i/p with Vtn =Vtp = 1 V. Vdd = 5V.
  3. Given a logic function. Realize with static CMOS. Do sizing for equal worst case rise and fall time. Given un = 2up.
  4. FIFO : sender => 200Megasamples/sec. Receiver => 10 Megasamples/sec. Sender sends a burst of 10usec in every 1 sec. Find the depth of FIFO.
  5. A simple ques on karnaugh map simplification.
  6. A question on optical sensors: A and B are placed at 90degrees around the optical disk that is painted black on 40% of its area. Design a logic to detect the direction of rotation. (Ans: Give A to clk & B to input or vice versa of D FF)
  7. A question on 3 flip-flops cascaded..2 & 3 f/f have closk skew..draw output waveforms..hold time =0 .One case was when Tcq was less than clock skew & when it is greater
  8. Simple booelan function to be implemented using ex-or , nand , nor gates.
  9. Given sheet resistance of metal, and some metal later layout( dimensions were given ), metal contact……find the power dissipation

Analog electronics pdf, company placement papers, interview questions, analog jobs in banglore

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