Digital Electro...

If the solutions to the quadratic equation x² – 11x + 22 are x = 3 and x = 6, than the base of numbers is

A delay line circuit is to be generated to create a delay of 0.32 ms between input and output. The number of flip-flops required in SISO register to produce the required delay?

In a dual slope ADC, the reference voltage is 100 mV and the first integration period is set as 50 msec. The input resistor of the integrator is 1 kΩ and the integrating capacitor 0.047 μF. For an input voltage of 120 mV, the second integration (de-integration) period will be

The number of 1’s in the 8-bit representation of -127 in 2’s complement form is m and that in 1’s complement form is n. What is the value of m : n?

Consider the following Boolean expression:

\(\left( {\bar A + \bar B} \right)\left[ {\overline {A\left( {B + C} \right)} } \right] + A\left( {\bar B + \bar C} \right)\)

In an 8085 microprocessor, the accumulator contents are AA H. After executing the instruction “CPI99” in the microprocessor

Consider the following program for 8085

XRA A

LXI B, 0007H

\(\begin{array}{*{20}{c}} {{\rm{Loop}}:}&{{\rm{DCX\;B}}}\\ \;&{{\rm{JNZ\;Loop}}} \end{array}\)

Consider numbers represented in 4-bit gray code. Let h₃h₂h₁h₀ be the gray code representation of a number n and let g₃g₂g₁g₀ be the gray code of ((n + 1) modulo 16) value of the number.

A certain 8-bit DAC has a full scale output of 2mA and full scale error of ± 0.5 % full scale reading. The maximum possible output current for an input of 10000000 is__________ μA.