2257 IPA m 7. A. Find the typical dc operating point for the circuit below using the transfer characteristic curves shown. B. Find the circuit's input resistance, the output resistance, and the voltage amplification. C. How would you change this circuit to substantially increase is voltage amplification and why would this method work? Mav 500 1713 15 7.5 0 w vin off 10 M Ves 5 1 2 200 No

3. What happens if the inverting & non-inverting i/p of the comparator interchanged? 4. Are there any limitations of such a vCO? Explain 5. Explain how a sine wave can be generated from such a VCO circuit. 6. List some applications for such a Vco.

Sketch carefully the following signal.in dsp material or signal and system

a.  In AC, how are the capacitors treated? b.  In AC, how are DC sources treated? c. What is the amplifier configuration of Figure 4? d. What is the expected phase shift of the sinusoidal input at the output side? e. What is Zi across RG, the gate resistor? f. It is the IC in its smallest form. g. The most commonly used metal as interconnect of the chip to external peipheral. h. How is pin 1 of the chip determined? i. An IC package similar to a DIP but with the pins bent outward. j. Which sensors are packed as IC?