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Electronics and Communication Engineering - Digital Electronics

Exercise : Digital Electronics - Section 7
36.
What is the normal range of analog input voltage?
0 to 1 V
0 to 5 V
5 to 15 V
15V to 30V
Answer: Option
Explanation:
No answer description is available. Let's discuss.
37.

Assertion (A): The propagation delay in ECL is minimum

Reason (R): Transistors used in ECL switch between active and cutoff regions.

Both A and R are correct and R is correct explanation of A
Both A and R are correct but R is not correct explanation of A
A is true, R is false
A is false, R is true
Answer: Option
Explanation:

Since saturation is avoided switching speed is high.

38.
For the design of a sequential circuit having 9 states, minimum number of memory elements required is
3
4
5
9
Answer: Option
Explanation:

23 = 8 and 24 = 16. Hence minimum of 4 memory elements.

39.
ICs are
analog
digital
both analog and digital
mostly analog
Answer: Option
Explanation:

Op-amp is an analog IC.

40.
In a 5 x 7 dot matrix, format, to store 64 alphanumeric characters we require
1120 bits
2240 bits
33 bits
64 bits
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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