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Which of the following statements is NOT correct for a Chebyshev Filter?

 

96. Which of the following statements is NOT correct for a Chebyshev Filter? 

1. Chebyshev filter tends to exhibit ringing effect with transient signals. [Option ID = 3213] 

2. Time delay and phase characteristics of Chebyshev filter are comparitively better than that of Butterworth filter. [Option ID = 3214] 

3. Chebyshev filters have a sharper slope than Butterworth filters. [Option ID = 3215] 

4. Chebyshev filters are capable of achieving more attenuation in stopband. [Option ID = 3216] 

Correct Answer : B

Solution

Chebyshev filters achieve a sharper cutoff by allowing ripple (usually in the passband for Type I).

This sharper response comes at the cost of poorer phase linearity and more variation in group delay than a Butterworth filter.

Therefore, Butterworth filters generally have better phase and time-delay characteristics.
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