A state variable is a multistage filter that provides LP BP & HP as this
The idea is to replace the second integrator by the power opamp as LM3886.
For now I adjusted to provide extra 20db NFB for a gain of 20db. That is it can have 10 times less distortion than standalone with the same gain.
The idea is to replace the second integrator by the power opamp as LM3886.
For now I adjusted to provide extra 20db NFB for a gain of 20db. That is it can have 10 times less distortion than standalone with the same gain.