Thursday 31 October 2013

digital communications questions for mid examination

1.companding explain briefly ,a law and u law companding techniques
2.pulse code modulation transmitter and receiver,show that differential pulse code modulation receiver is in the part of transmitter
3.signal to band width in pulse code modulation and obtain signal to quantization noise ratio of the pulse code modulation
4.principle of operation of binary phase shift keying generation and reception of binary phase shift keying and calculate band width


1.sampling theorem for low pass signal with equations
2.explain blocks of pulse code modulation  and also mention the advantages and disadvantages of pulse code modulation
3.signal to quantization noise ratio of delta modulation  and differences between granular noise and slow power noise (granular noise is also called as widenoise)
4.differential phase shift keying  generation and demodulation
 binary phase shift keying generation and demodulation



all of you prepare well for the examination

"all the best"

Thursday 24 October 2013

emi questions for mid exam

1 af sine to square wave converter using diode cliping operation
2 diferent types of errors and their sourses, precautions to minimise them
3 explain harmonic distortion distortion
4 what is arbitrary waveform? arbitrary waveform generator working


1 simple circuit for frequency modulation of rf signal generator and explain
2 with neat sketch explain the operation of fundamental supresion
harmonic distortion analyser
3 what is wave analyser? frequency analyser and heterodyne wave analyser?
4 potentiometric voltmeter and differential voltmeter

Saturday 19 October 2013

lica imp questions




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 if you click on this link this will drive you to the mediafire download file there you cna download the document of the subject linear integrated circuit applications