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PAPER
1:
1:
5 marks
Draw circuit diagram of binary weighted inputs
convertor
convertor
Draw block diagram od cascading decade counter 74hc160
Write test vector of 3 bit up down counter
Timing diagram of frequency dividor. We have to make
the waveform of the final output
the waveform of the final output
Other short questions:
Characteristics of serial in serial out shift register
3 guidelines of state assignment
2 applcations of ROM
Why certain counters like 74hc160 is called pre-set
counters
counters
How many bits a flip flop can save.
Purpose of stop bits and start bit
Which is the normal mode of operation of PROM (exactly
yehi question statement tha confusing sa)
yehi question statement tha confusing sa)
A circuit has 2 flip flops. What will be the power
dissipation of the whole circuit is 5 volts and 5 mA current is applied to it.
(I wrote 50mW. As for each flip flop its 25mW so 25+25 = 50..not sure)
dissipation of the whole circuit is 5 volts and 5 mA current is applied to it.
(I wrote 50mW. As for each flip flop its 25mW so 25+25 = 50..not sure)
PAPER
2:
2:
QNO1: Analyze the following timing
dagiram and tell which counter is being depicted by the diagram.
dagiram and tell which counter is being depicted by the diagram.
QNO2: give three guidelines for the
selection of state assignment?
selection of state assignment?
QNO3: what does the statement given
below (using PLD programming) mean? “YPIN23 ISTYPE.’com’”
below (using PLD programming) mean? “YPIN23 ISTYPE.’com’”
QNO4: draw a diagram of a 3 bit-up-down
counter. Use an external inputX; when X sets to logic 1, the counter downward
otherwise countup wards.
counter. Use an external inputX; when X sets to logic 1, the counter downward
otherwise countup wards.
QNO5: what is meant by state assignment?
QNO6: on the fifth clock pluse a 4 bit
jhonson sequence is Q0=0, Q1=1, Q2=1, Q3=1. What will be
the sequence after sixth clock pluse.
jhonson sequence is Q0=0, Q1=1, Q2=1, Q3=1. What will be
the sequence after sixth clock pluse.
Assume Q3 represent the least significant.
QNO7: what is the minimum sample frequency if the
highest frequency component in analog signalis 20KHZ?
highest frequency component in analog signalis 20KHZ?
QNO8: what is meant by stop time and hold
time of a flip flop?
time of a flip flop?
Paper
3:
3:
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CS302
Final Term Paper
2 Marks Question:
1. In ABEL, an Input (source) file contains the module which has three sections. Name any two. 2. Write down two functions of registers. 3. Suppose a 2-bit up-counter, having states, “A, B, C, D”. Write down GOTO statements to show how present states change to next states. 4. Missing code is one of the Analog-to-Digital converters errors. Name other two types of errors. 3 Marks Question: 5. Convert the decimal 5846 number to octal using repeated division method, write down all steps. 6. Write down three characteristics of serial in/serial out 4-bit right shift register. 7. Draw a circuit diagram of flip-flop based static memory cell. 8. Draw the circuit diagram of operational amplifier used as an inverting amplifier. 5 Marks Question: 9. Convert the following numbers into its equivalent decimal number with complete procedure 1101101.1011. 10. Consider a state sequence a,f,d,c,a,b,c,f,d,c. Starting from initial state “a”. draw a table for the inputs and outputs for the state diagram given below. 11. Mealy Machine Per Tha. State Table 12. Draw the circuit diagram of binary-weighted-input digital to analog converter. |
a
