基于CS8422的24位多格式立体声数字音频接收技术

文章摘要：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.24-bit, 192-kHz, Asynchronous Sample Rate Converter with Integrated Digital Audio Interface

基于CS8422的24位多格式立体声数字音频接收技术,标签：单片机开发,单片机原理,http://www.88dzw.com
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.

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.

The CS8422 can be controlled through the control port in Software Mode or in a Stand-Alone Hardware Mode. In Software Mode, the user can control the device through an SPI or I²C control port.

Target applications include digital recording systems (DVD-R/RW, CD-R/RW, PVR, DAT, MD, and VTR), digital mixing consoles, high-quality D/A, effects processors, computer audio systems, and automotive audio systems.

The CS8422 is available in a space-saving QFN package in both Commercial (-40℃ to +85℃) and Automotive (-40℃ to +105℃) grades. The CDB4822 is also available for device evaluation and implementation suggestions.

CS8422主要特性:

Sample Rate Converter Features

140 dB Dynamic Range

-120 dB THD+N

No External Master Clock Required

Supports Sample Rates up to 211 kHz

Input/Output Sample Rate Ratios from 6:1 to 1:6

Master Mode Master Clock/Sample Rate Ratio Support: 64, 96, 128, 192, 256, 384, 512, 768, 1024

16, 18, 20, or 24-bit Data I/O

Dither Automatically Applied and Scaled to Output Resolution

Multiple Device Outputs are Phase Matched

Digital Audio Interface Receiver Features

Complete EIAJ CP1201, IEC-60958, AES3, S/PDIF Compatible Receiver

28 kHz to 216 kHz Sample Rate Range

2:1 Differential AES3 or 4:1 S/PDIF Input Mux

De-emphasis Filtering for 32 kHz, 44.1 kHz, and 48 kHz

Recovered Master Clock Output: 64 x Fs, 96 x Fs, 128 x Fs, 192 x Fs, 256 x Fs,384 x Fs, 512 x Fs, 768 x Fs, 1024 x Fs

49.152 MHz Maximum Recovered Master Clock Frequency

Ultralow-jitter Clock Recovery

High Input Jitter Tolerance

No External PLL Filter Components Required

Selectable and Automatic Clock Switching

AES3 Direct Output and AES3 TX Passthrough

On-chip Channel Status Data Buffering

Automatic Detection of Compressed Audio Streams

Decodes CD Q Sub-Code

System Features

SPI™ or I²C™ Software Mode and Stand-Alone Hardware Mode

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