Kannur University 2009-5th Sem B.Tech Iester Engineering (Regular/Part Time) , yl , PT 2K6 /2K6 EC/AEI 405 : ELECTRONIC CIRCUITS-II - Question Paper

IV Semester B.Tech. Engineering Degree (Regular/Part Time)
Examination, Julyl 2009
(2007 Admin.)
Electronics and Communication


PT 2K6 /2K6 EC/AEI 405 : ELECTRONIC CIRCUITS-II


Time: three Hours Max. Marks: 100


Instructions : ans all questions.

1. a) discuss the Rc circuit as differentiator.

b) Differentiate MOS inverter and CMOS inverter.

c) elaborate the differences ranging from monostable and astable multivibrator ?

d) How do you write bistable circuit using logic gates ?

e) What is the significance of PLL ?

f) elaborate the applications of VCO ?

g) discuss the conversation of digital to analog signal.

h) What do you mean over sampling ADC ? [Marks 8x5=40]


2. a) discuss the switching charecterstics of BJT with inductive load. [Marks 8]

b) what is the significance of non saturating switches ? [Marks 7]

OR

3. a) discuss the switching charecterstics of MOS inverter with resistive load. [Marks 8]

b) What do you mean by dynamic power dissipation in inverter ? [Marks 7]

4. a) With a neat circuit diagram , discuss the operation of collector coupled monoshot. [Marks 10]

b) What is the significance of negative resistance devices ? [Marks 5]

OR

5. a) discuss the operation of emitter coupled monoshot with a circuit diagram. [Marks 10]

b) What is the significance of 555 IC timer ? [Marks 5]

6. discuss the various configuration of voltage controlled oscillators with diagram.
Enumerate the differences ranging from them. [Marks 15]

OR

7. discuss the analysis of PLL along with the applications. what is the
concept of linearization ? [Marks 15]

8. discuss the concept of current steering in cyclic and pipeline DAC's.
List the differences ranging from the two. [Marks 15]

OR

9. discuss the operation of successive approximation converter. Also discuss
dual slope ADC's. [Marks 15]

Earning:   Approval pending.