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Digital Electronics

Digital Electronics
In SSI, the number of gate circuits per chip is

 < 20
 < 25
 < 12
 < 6

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Digital Electronics
The simplified block diagram of a 10-bit A/D converter of dual slope integrator type is shown in figure. The 10-bit counter at the output is clocked by a 1 Mhz clock. Assuming negligible timing overhead for the control logic, the maximum frequency of the analog signal that can be converted using this A/D converted is approximately .

 250 Hz.
 500 Hz.
  1 KHz.
 2 KHz.

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Digital Electronics
Which of the following logic circuits is the fastest ?

 TTL.
 All have same speed.
 RTL.
 DTL.

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Digital Electronics
The devices commonly used for making digital circuits are

 contact switches
 semiconductor devices
 relays
 mechanical switches

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Digital Electronics
(44)8 in BCD 8421 code is

 01000100
 00110110
 00100100
 01100011

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Digital Electronics
Master-slave flip flop consists of ________ flip-flop(s).

 1
 2
 4
 3

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