This application note details the second-order Butterworth filter and two reduced filtering techniques, each providing a different price/performance node。
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Texas Instruments Incorporated Amplifiers Audio Power Reducing the output filter of a ClassD amplifier By Mike Score System Specialist Audio A properly designed ClassD output filter limits supply current minimizes EMI and protects the loudspeaker from switching waveforms However it also significantly increases the total design cost The current recommended secondorder output filter for the TI TPA005D02 is 30 of the audio power amplifier APA solution cost This application note details the second......
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