Cirrus CS8422 24位多格式立体声数字音频接收方案

Cirrus 公司的CS8422是24位高性能多格式数字音频接收器,接口标准包括EIAJ CP1201, IEC-60958, AES3和S/PDIF,串行音频输出可设定为24/20/18/16位字长,数据输入可高达24位长.输入和输出数据可以和外接时钟是异步或同步,动态范围140dB,THD+N为-120dB,模拟电源3.3V,数字接口1.8V到5.0V.主要用在家庭影院系统,电视,媒体中心,混响和效果处理器,多轨录音机和PC声卡.本文介绍了CS8422主要特性,方框图, 软件和硬件模式连接框图,以及评估板CDB8422主要特性,方框图和详细电路图与元件布局图.

24-bit, 192-kHz, Asynchronous Sample Rate Converter with Integrated Digital Audio Interface Receive
r The CS8422 is a 24-bit, high-performance, monolithic CMOS stereo asynchronous sample rate converter with an integrated digital audio interface receiver that decodes audio data according to the EIAJ CP1201, IEC-60958, AES3, and S/PDIF interface standards.

Audio data is input through the digital interface receiver or a 3-wire serial audio input port. Audio is output through one of two 3-wire serial audio output ports. Serial audio data outputs can be set to 24, 20, 18, or 16-bit word-lengths. Data into the digital interface receiver and serial audio input port can be up to 24-bits long. Input and output data can be completely asynchronous, synchronous to an external clock through XTI, or synchronous to the recovered master clock.
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