Explanation: If both inputs are positive, the IC is said to be a one quadrant multiplier. A two quadrant multiplier function properly, if one input is held positive and the other is allowed to swing. Similarly, for a four quadrant multiplier both the inputs are allowed to swing. 3. What is the disadvantage of log-antilog multiplier?
A. Provides four quadrant multiplication only
B. Provides one quadrant multiplication only
C. Provides two and four quadrant multiplication only
D. Provides one, two and four quadrant multiplication only
Answer:A
Explanation: If both inputs are positive, the IC is said to be a one quadrant multiplier. A two quadrant multiplier function properly, if one input is held positive and the other is allowed to swing. Similarly, for a four quadrant multiplier both the inputs are allowed to swing. 3. What is the disadvantage of log-antilog multiplier?
A. Provides four quadrant multiplication only B. Provides one quadrant multiplication only C. Provides two and four quadrant multiplication only D. Provides one, two and four quadrant multiplication only
Explanation: Log amplifier requires the input and reference voltage to be of the same polarity. This restricts log-antilog multiplier to one quadrant operation. 4. An input of Vsinωt is applied to an ideal frequency doubler. Compute its output voltage?