DIGITAL ELECTRONICS TECHNICAL-INTERVIEW QUESTIONS
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What is the difference between a Flip-Flop and a Latch?

What is race around condition?

What is the VHF,UHF Frequency ranges?

What is Inter signal interference?

What is the difference between a synchronous and asynchronous circuit?Which is better?

What is the significane of excess 3 code?Explain Self-complimenting property?

What is D-FF?

What are the different types of power amplifiers?

What is meant by Companding?

What is the basic difference between counters and registers?

What is a multiplexer?

How can you convert an SR Flip-flop to a JK Flip-flop?

How can you convert a JK Flip-flop to a D Flip-flop?

What is Race-around problem? How can you rectify it?

Which semiconductor device is used as a voltage regulator and why?

Explain an ideal voltage source?

Explain zener breakdown and avalanche breakdown?

What are the different types of filters?

What is the need of filtering ideal response of filters and actual response of filters?

What is sampling theorem?

What is impulse response?

Explain the advantages and disadvantages of FIR filters compared to IIR counterparts.

What is CMRR?

Explain half-duplex and full-duplex communication?

Which range of signals is used for terrestrial transmission?

Why is there need for modulation?

Which type of modulation is used in TV transmission?

Why we use vestigial side band (VSB-C3F) transmission for picture?

When transmitting digital signals is it necessary to transmit some harmonics in addition to fundamental frequency?

For asynchronous transmission, is it necessary to supply some synchronizing pulses additionally or to supply or to supply start and stop bit?

BPFSK is more efficient than BFSK in presence of noise. Why?

What is meant by pre-emphasis and de-emphasis?

Explain 3 dB cutoff frequency? Why is it 3 dB, not 1 dB?

Explain ASCII, EBCDIC?