SRC4382采用片上控制寄存器和数据缓冲器配置，可通过4线串行外设接口（SPI）端口访问，或2线Philips I 2 C总线接口。状态寄存器提供对各种标志和错误位的访问，这些位从各种功能块派生而来。提供开漏中断输出引脚，并通过控制寄存器设置灵活的中断报告和屏蔽选项提供支持。主复位输入引脚用于由主处理器或监控功能进行初始化。
Dynamic Range with -60dB Input (A-Weighted): 128dB typical
Total Harmonic Distortion and Noise (THD+N) with Full-Scale Input: -125dB typical
Supports Audio Input and Output Data Word Lengths Up to 24 Bits
Supports Input and Output Sampling Frequencies Up to 216kHz
Automatic Detection of the Input-to-Output Sampling Ratio
Wide Input-to-Output Conversion Range: 16:1 to 1:16 Continuous
Excellent Jitter Attenuation Characteristics
Digital De-Emphasis Filtering for 32kHz, 44.1kHz, and 48kHz Input Sampling Rates
Digital Output Attenuation and Mute Functions
Output Word Length Reduction
Status Registers and Interrupt Generation for Sampling Ratio and Ready Flags
Digital Audio Interface Transmitter (DIT)
Supports Sampling Rates Up to 216kHz
Includes Differential Line Driver and CMOS Buffered Outputs
Block-Sized Data Buffers for Both Channel Status and User Data
Status Registers and Interrupt Generation for Flag and Error Conditions
User-Selectable Serial Host Interface: SPI or Philips I2C™
Provides Access to On-Chip Registers and Data Buffers
Digital Audio Interface Receiver (DIR)
PLL Lock Range Includes Sampling Rates from 20kHz to 216kHz
Includes Four Differential Input Line Receivers and an Input Multiplexer
Bypass Multiplexer Routes Line Receiver Outputs to Line Driver and Buffer Outputs
Block-Sized Data Buffers for Both Channel Status and User Data
Automatic Detection of Non-PCM Audio Streams (DTS CD/LD and IEC 61937 formats)
Audio CD Q-Channel Sub-Code Decoding and Data Buffer
Status Registers and Interrupt Generation for Flag and Error Conditions
Low Jitter Recovered Clock Output
Two Audio Serial Ports (Ports A and B)
Synchronous Serial Interface to External Signal Processors, Data Converters, and Logic
Slave or Master Mode Operation with Sampling Rates up to 216kHz
Supports Left-Justified, Right-Justified, and Philips I2S™ Data Formats
Supports Audio Data Word Lengths Up to 24 Bits
Four General-Purpose Digital Outputs
Multifunction Programmable Via Control Registers
Extensive Power-Down Support
Functional Blocks May Be Disabled Individually When Not In Use
Operates From +1.8V Core and +3.3V I/O Power Supplies
Small TQFP-48 Package, Compatible with the SRC4392 and DIX4192
APPLICATIONS
DIGITAL AUDIO RECORDERS AND MIXING DESKS
DIGITAL AUDIO INTERFACES FOR COMPUTERS
DIGITAL AUDIO ROUTERS AND DISTRIBUTION SYSTEMS
BROADCAST STUDIO EQUIPMENT
DVD/CD RECORDERS
SURROUND SOUND DECODERS AND A/V RECEIVERS
CAR AUDIO SYSTEMS
U.S. Patent No. 7,262,716
Dolby is a registered trademark of Dolby Laboratories. I2C, I2S are trademarks of Koninklijke Philips Electronics N.V. All other trademarks are the property of their respective owners.
