What is Passband Ripple?How is this expressed in dB scale?

1. What is the passband ripple?
2. What is the value of passband ripple in dB?
3. What is dB ripple?
4. What is passband and stopband ripple?

What is the passband ripple?

Passband Ripple and Stopband Attenuation. In many applications, you can allow the gain in the passband to vary slightly from unity. This variation in the passband is the passband ripple, or the difference between the actual gain and the desired gain of unity.

What is the value of passband ripple in dB?

6. What is the value of pass band ripple in dB? Explanation: 1-δ_P is known as the pass band ripple or the pass band attenuation, and its value in dB is given as -20log(1-δ_P).

What is dB ripple?

Ripples are the fluctuations (measured in dB) in the pass band, or stop band, of a filter's frequency magnitude response curve. Elliptic and Chebyshev-based filters have constant ripple across their pass bands.

What is passband and stopband ripple?

Passband ripple occurs in the high-gain region of a higher-order filter or amplifier's transfer function, and looks like some variations in the output gain. The same applies to the phase on the output. In effect, the two are not smooth functions of frequency. Ripple can also appear in the stopband in these circuits.