Reply to thread

Here are two approximations of a 200 ns using a 2nd order Bessel LPF with a group delay ~ 200ns simulated with Falstad online using ideal components. The inverting multiple feedback type was reinverted for comparison with the S&K non-inverting LPF.  The group delay can be shown to decrease past the breakpoint and thus any signal energy that is input above this point must arrive sooner and thus have a steeper leading edge and slower trailing edge from the lower frequency content. The difference in widths  such as in the step response. As a Rule of Thumb, you input pulse must be twice or more than the delay time.

[ATTACH=full]189687[/ATTACH]

Maybe this will yield your choice to be Marked as Solved with two Bessel (non overshoot filters) known as maximally flat group delay filters, which happen to be lower Q as well to the maximally flat frequency response filters.

If you examine the time delay vs pulse width variations for pulse width vs delay time to 50% of peak amplitude to start almost 200 ns then reduce with input pulse width as the trail edge from peak signal remains the almost same.  This may lead to reading about FIR filters.

Can you list the top facts and stats about Finite impulse response?

1. FIR filters are widely used in digital signal processing applications.

2. They have a finite impulse response, meaning their output depends only on past inputs.

3. FIR filters are known for their linear phase response characteristics.

4. The filter coefficients of an FIR filter can be easily designed and adjusted.

5. They offer excellent control over the frequency response shaping.

6. FIR filters can provide sharp cutoffs and high stopband attenuation.

7. They are often implemented using convolution operations in time domain.

8. FIR filters do not suffer from stability issues like IIR filters.

9. Their computational complexity is generally higher compared to IIR filters.

10. FIR filters are commonly used for tasks such as noise reduction and equalization.

[automerge]1711649182[/automerge]

https://tinyurl.com/2aymzvnv  sim