ADI ADAU1401 SigmaDSP单片音频子系统解决方案
ADI公司的ADAU1401是集成了两个ADC和四个DAC以及微控制器类的控制接口的SigmaDSP 28/56位音频数字信号处理器(DSP),信号处理包括均衡,音频混合,低音增强,多带动态处理,延迟补偿,扬声器补偿以及立体声图像加宽等,可以弥补真实扬声器,放大器的不足,从而改善听觉环境,提高音频质量.主要用在多媒体扬声器系统,MP3播放器扬声器,汽车音响,微型立体声,数字电视,音乐乐器等.本文介绍了ADAU1401主要特性, 功能方框图, 系统框图, 自举模式, I2C与SPI控制和电路图,以及评估板EVAL-ADAU1401AEBZ主要特性,框图,电路图和PCB元件布局图.
The ADAU1401 is a complete single-chip audio system with a 28-/56-bit audio DSP, ADCs, DACs, and microcontroller-like control interfaces. Signal processing includes equalization, cross over, bass enhancement, multiband dynamics processing, delay compensation, speaker compensation, and stereo image widening. This processing can be used to compensate for real-world limitations of speakers, amplifiers, and listening environments, providing dramatic improvements in perceived audio quality.
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