Q181
Open questionA 12-bit ADC is employed to convert an analog voltage of zero to 10 volts. The resolution of the ADC is
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Digital Electronics
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Q182
Open questionWhat is the maximum clock frequency at which following circuit can be operated without timing violations? Assume that the combinational logic delay is 10 ns and the clock duty cycle varies form 40% to 60%
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Q183
Open questionA sequential circuit using D Flip-Flop and logic gates is shown in the figure, where X and Y are the inputs and Z is the output. The circuit is
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Q184
Open questionThe output of the 74 series gate of TTL gates is taken from a BJT in
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Q185
Open questionThe circuit shown in the figure has 4 boxes each described by inputs P, Q, R and outputs Y, Z with
The circuit acts as a
The circuit acts as a
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Q186
Open questionFor the gate in the given figure the output will be . . . . . . . .
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Q187
Open questionThe 54/74164 chip is as 8-bit serial-input-parallel-output shift register. The clock is 1 MHz. The time needed to shift an 8-bit binary number into the chip is
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Q188
Open questionFor the code X1 = (000, 111) how many errors can be successfully detected?
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Q189
Open questionIC 74 HC00 series belong to,
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Q190
Open questionIn S-R latch, when the SET input is made high, output Q becomes:
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Q191
Open questionBoth transistors T1 and T2 shown in the figure, have a threshold voltage of 1 Volts. The device parameters K1 and K2 of T1 and T2 are respectively, 36 µA/V2 and 9 µA/V2. The output voltage V0 is
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Q192
Open questionIn the following state table, the equivalent states are
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Q193
Open questionThe expression for the truth table given below in POS form is given by:
| A B | C | F |
| 0 0 | 0 | 1 |
| 0 0 | 1 | 0 |
| 0 1 | 0 | 1 |
| 0 1 | 1 | 1 |
| 1 0 | 0 | 1 |
| 1 0 | 1 | 1 |
| 1 1 | 0 | 1 |
| 1 1 | 1 | 0 |
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Q194
Open questionConsider the following statements regarding configuration of TTL devices:
1. The output impedance of totem pole transistor is high.
2. Open collector output devices have low switching speed.
3. Power consumption of Schottky devices is high.
4. Tri-state output devices have high switching speed.
Of these statements:
1. The output impedance of totem pole transistor is high.
2. Open collector output devices have low switching speed.
3. Power consumption of Schottky devices is high.
4. Tri-state output devices have high switching speed.
Of these statements:
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Q195
Open questionAn input frequency of 12 KHz is applied to the J-K flip-flops arrangement shown in the given figure. The resulting output frequency will be
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Q196
Open questionConsider the Karnaugh map given below : The function represented by this map can be simplified to the minimal form as
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Q197
Open questionWhich one of the following Boolean expressions is NOT correct?
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Q198
Open questionThe number of digit 1 present in the binary representation of 3 × 512 + 5 × 64 + 7 × 8 + 3 is:
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Q199
Open questionThe fastest ADC among the following is
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Q200
Open questionWhat will be the simplified Boolean function of the given equation? F(a, b, c) = Σ(0, 2, 4, 5, 6)
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