What is the necessary and sufficient condition for a second order filter that no zero-input overflow limit cycles occur?
A. |a1|+|a2|=1
B. |a1|+|a2|>1
C. |a1|+|a2|<1
D. None of the mentioned
Answer:A
What is the necessary and sufficient condition for a second order filter that no zero-input overflow limit cycles occur?
A. |a1|+|a2|=1 B. |a1|+|a2|>1 C. |a1|+|a2|<1 D. None of the mentioned
Explanation: It can be easily shown that a necessary and sufficient condition for ensuring that no zero-input overflow limit cycles occur is |a1|+|a2|<1