How does cascading low pass modules affect pass band ripples?

1. What is the relationship between lowpass high pass band pass and band stop filter?
2. What causes passband ripple?
3. How does the frequency of oscillations in pass band of a low pass filter increases with an increase in the value of M?
4. What is ripple in low pass filter?

What is the relationship between lowpass high pass band pass and band stop filter?

A band stop filter also known as a notch filter is used in circuits that block only a selected range of frequencies and allows others to pass through. It would be an inverse of the band pass filter and can be created by using the same input at a high pass and an LPF.

What causes passband 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.

How does the frequency of oscillations in pass band of a low pass filter increases with an increase in the value of M?

3. How does the frequency of oscillations in the pass band of a low pass filter varies with the value of M? Explanation: The frequency of oscillations in the pass band of a low pass filter increases with an increase in the value of M, but they do not diminish in amplitude. 4.

What is ripple in low pass filter?

Any realizable filter's passband will be only approximately flat; the deviation from flatness is called the ripple, and is often specified by giving the ratio between the highest and lowest gain in the passband, expressed in decibels. The ideal low-pass or high-pass filter would have a ripple of 0 dB.