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The TPA3136D2 and TPA3138D2 Class D audio power amplifier are the latest TI analog input amplifiers that use advanced PWM switching techniques for reducing electromagnetic interference (EMI) without degrading audio performance. This application note describes the system design and printed circuit board (PCB) guidelines used to maximize the technology employed in the TPA3136D2/TPA3138D2 device. These techniques include the EMI suppression without the need for expensive inductor filters and the reduction of external component count.