基于AVR ATmega8 的小功率数字功放 音频经过LM358,然后送入单片片ADC, 模数转换后数字信号通过OC1B OC1A互补输出，驱动三极管 -Based AVR ATmega8 small power digital amplifier Audio through LM358, then into a single piece of ADC, After the analog to digital conversion of digital signals t