The tolerance of the component value used around A2 will affect the filter's pole locations and will affect the amplitude of the filtered sine wave.
The tolerance of the component value used around A2 will affect the filter's pole locations and will affect the amplitude of the filtered sine wave.
A2放大器的元件的容错能力会影响滤波器的极点位置，进而影响已过滤正弦波的振幅。