低功耗立体声音频编解码器 带耳机放大器 ES8388是一种高性能，低功耗和低成本的音频编解码器。它由2通道ADC，2通道DAC，麦克风放大器，耳机放大器，数字声音效果，并模拟混合和增益功能。-Low Power Stereo Audio CODEC With Headphone Amplifier ES8388 is a high performance, low power and low cost audio CODEC. It consists of 2-ch ADC,

电子分频器：有源电路，位于功率放大器之前，将前置音频信号分频后再用各自独立的功率放大器，把每一个音频频段信号给予放大，然后分别送到相应的扬声器单元-Electronic frequency divider: active circuits, in front of the power amplifier, will lead audio signal frequency and then separate the power amplifier, the every audio frequenc

探讨了一种数字移频法啸叫检测与抑制音频功率放大实验测试系统设计方案，用来实现带啸叫检测与抑制音频功率放大．系统以 FPGA 为控制核心(This paper has designed a testing system for an audio power amplifier with howling detection and suppression which is used to achieve howling detection and suppression audio power am