FreeScale Placement Paper 7th AUG 2008(Aptitude)
Paper: FreeScale Placement Paper 7th AUG 2008(Aptitude)
Q1- Design a black box with three ports A,B,C using 5 resistors of 1 ohm each such that RAB=1.5 ohm, RAC=3.5 ohm and RBC=3 ohm.
Q2-It was a basic thevenin circuit with three parallel branches containing a current source of 2A current, a resistor of 1 ohm and a battery source of 1V.We were asked to calculate the current in the resistor.
Q3-Design a mod-5 counter using JK flip flops with minimum circuitry?
Q4-Sythesize the function Y= (AB+CD)E using CMOS?
Q5-A general aptitude question with two parts each of 5marks.
(a) Related to some matrix(Could not answer that)
(b) Was an easy probability based problem..
Q6-A problem on generating a C-code..Din't attempt it.
Q7-A problem of finding the max frequency with 3 different parts. Each having a different clock skew.
Q8-A problem to calculate the propagation delay in a combinational circuit.
Q9-A tricky problem on Zener diode with an RC circuit...Had to sketch the voltage waveform across the resistor
Q10-Data is coming at a rate of 600mhz and is transmitted at 150mhz.Calculate the size of the FIFO required to avoid the overflow if 200 data bits are coming at a time and no data is received until the previous data is completely transmitted?
Q11-A microprocessor has an instruction pattern such that the first 3 instructions take 1 clock cycle each, the fourth one takes 2 and the fifth one takes 3 clock cycles. If 1 clock cycle=10ns. Find the MIPS (million instructions per second) of the microprocessor?
Q12-A problem on dynamic power dissipation based on the input & output waveforms of a sequential circuit.
Q13-Input & output waveforms for a circuit were given. Had to design the circuit to satisfy the conditions.
Q14-A very easy opamp based problem to calculate the transfer function of the circuit.
Q15-A unusual problem again on power dissipation. Given the power dissipated in each stage of the amplifier blocks..
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