ADI ADAU1761低功耗数字音频处理CODEC方案

ADI 公司的ADAU1761是低功耗集成了数字音频处理的立体声CODEC,支持立体声48kHz录音,1.8V播放时的功耗为14mW.立体声ADC和DAC支持取样速率从8kHz 到96kHz以及数字音量控制. 音频处理SigmaDSP核具有28位处理能力,能使设计者补偿麦克风,扬声器,放大器和听觉环境中现实世界的限制,通过均衡,多频带压缩,限幅和第三方算法来极大地改善音频质量.主要应用在智能手机/多媒体手机,数码相机/数码摄像机,手提媒体播放器/手提音频播放器等.本文介绍ADAU1761主要特性,功能方框图, 系统方框图以及评估板EVAL-ADAU1761Z 功能方框图,电路图和材料清单(BOM).

The ADAU1761 is a low power, stereo audio codec with integrated digital audio processing that supports stereo 48 kHz record and playback at 14 mW from a 1.8 V analog supply. The stereo audio ADCs and DACs support sample rates from 8 kHz to 96 kHz as well as a digital volume control.

The SigmaDSP® core features 28-bit processing (56-bit double precision). The processor allows system designers to compensate for the real-world limitations of microphones, speakers, amplifiers, and listening environments, resulting in a dramatic improvement in the perceived audio quality through equalization, multiband compression, limiting, and third-party branded algorithms.
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