Cirrus CS470xx高性能模拟和数字音频处理解决方案
Cirrus公司的CS470xx系列是高性能后处理以及混合模拟和数字音频的音频系统级芯片(ASOC).具有高性价比的32位DSP, 300,000,000 MAC/S(每秒乘发运算),业界精度最高的72位居累加器,双路时钟域支持DAI和SPDIF RX一起输入,集成的取样速率转换器(SRC)允许音频流以不同的确取样速率混合.集成的8路24位DAC的动态范围(DR)为108dB,THD+N为-98dB,4路24位ADC的DR为105dB,THD+N为-98dB,主要用于汽车音频放大器,汽车处理器,DTV,MP3坞站,AVR和DVD RX, DSP控制的扬声器.本文介绍了CS470xx 系列主要特性,方框图,CDB47xxxS主板方框图,电路图与主要元件, CDB47xxx-DC48子板方框图,电路图与主要元件.
The CS470xx DSP is designed to provide high-performance post-processing and mixing of analog and digital audio. Dual clock domains are supported when the DAI and SPDIF RX inputs are used together. Integrated sample rate converters (SRCs) allow audio streams with different sample rates to be mixed. The low-power standby preserves battery life for applications that are always on, but not necessarily processing audio, such as automotive audio systems.
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