基于CS8422的24位多格式立体声数字音频接收技术

文章摘要：Flexible 3-wire Digital Serial Audio Input PortDual Serial Audio Output Ports with Independently Selectable Data PathsMaster or Slave Mode Operation for all Serial Audio PortsTime Division Multiplexing (TDM) ModeIntegrated Oscillator for use with External CrystalFour General-purpose Output Pins (GPO

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
Flexible 3-wire Digital Serial Audio Input Port

Dual Serial Audio Output Ports with Independently Selectable Data Paths

Master or Slave Mode Operation for all Serial Audio Ports

Time Division Multiplexing (TDM) Mode

Integrated Oscillator for use with External Crystal

Four General-purpose Output Pins (GPO)

+3.3 V Analog Supply (VA)

+1.8 V to 5.0 V Digital Interface (VL)

Space-saving 32-pin QFN Package

图1. CS8422方框图

图2.CS8422软件模式连接框图

图3.CS8422硬件模式连接框图

图4.CS8422硬件模式时钟路径图

CS8422评估板CDB8422

Using the CDB8422 evaluation board is an ideal way to evaluate the CS8422. Use of the board requires a digital signal source, an analyzer, and a power supply. A Windows PC-compatible computer is also required if using software mode to configure the CDB8422.

S/PDIF and AES3/EBU input connections are made via RCA phono, optical, or XLR connectors to the CS8422. S/PDIF output connections are made via RCA phono or optical connectors from the CS8406 (S/PDIF Tx). System timing can be provided by a S/PDIF or AES3/EBU input signal, by the CS8422 with supplied master clock, or by an I/O stake header with a DSP connected.

The provided Windows-based software GUI makes configuring the CDB8422 easy. The software communicates through the PC’s USB port to configure the board so that all features of the CS8422 can be evaluated.

The board may also be configured without a PC connection by using hardware switches; however, not all configurations of the CDB8422 are possible in hardware mode.

CS8422评估板CDB8422主要特性:

IEC-60958, AES3/EBU, S/PDIF Inputs

– Single-Ended Inputs via Optical and RCA Input Jacks

– Differential Inputs via XLR Input Jack

S/PDIF Outputs

– Optical and RCA Output Jacks

– CS8406 Digital Audio Transmitter

I/O Stake Headers

– External Control Port Accessibility

– External Serial Audio I/O Accessibility

3.3 V Logic Interface

Powered by Single External Power Supply or PC USB Port Connection

H/W Control via DIP Switches

FlexGUI S/W Control - Windows® Compatible

– Pre-Defined & User-Configurable Scripts

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