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一种工程设备中的音频带通滤波器,可由采用。卫阻抗转揣器代替LC滤波器中的电感器的有源RC滤波加以代替。由于合成的这种滤波器的灵敏度低,故所要求的元件误差度与薄膜元件可相比较。
An audio bandpass filter in an engineering device can be used. The impedance switching device replaces the active RC filtering of the inductor in the LC filter. Due to the low sensitivity of the synthesized filter, the required component error can be compared with the thin film element.