返回Analog Devices Inc.

Analog Devices Inc. ADAU1452 SigmaDSP数字音频处理器

ADI ADAU1452SigmaDSP数字音频处理器是一款适用于汽车的音频处理器，数字信号处理能力远超之前的SigmaDSP®器件。其硬件架构经过重构，针对高效音频处理做了优化。音频处理算法采用逐样本和逐模块范式实现，它们可在信号处理流程中同时执行，方法是使用图形编程工具SigmaStudio™。与前几代SigmaDSP所需的指令相比，全新的数字信号处理器(DSP)内核架构能以大幅精简的指令执行某类音频处理算法，从而极大地改善代码效率。

The audio processing algorithms are realized in sample-by-sample and block-by-block paradigms, which can both be executed simultaneously in a signal processing flow created using the graphical programming tool, SigmaStudio™. The new digital signal processor (DSP) core architecture enables some types of audio processing algorithms to be executed using significantly fewer instructions than were required on previous SigmaDSP generations, leading to vastly improved code efficiency.

特性

  • Qualified for automotive applications
  • Fully programmable audio DSP for enhanced sound processing
  • Features SigmaStudio, a proprietary graphical programming tool for the development of custom signal flows
  • 294.912MHz, 32-bit SigmaDSP core at 1.2V
  • Up to 6144SIMD instructions per sample at 48kHz
  • 40kWords of parameter/data RAM
  • Up to 800ms digital audio delay pool at 48kHz
  • Audio I/O and routing
  • 4 serial input ports, 4 serial output ports
  • 48-channel, 32-bit digital I/O up to a sample rate of 192kHz
  • Flexible configuration for TDM, I2S, left and right justified formats, and PCM
  • Up to 8 stereo ASRCs from 1:8 up to 7.75:1 ratio and 139dB DNR
  • Stereo S/PDIF input and output

应用

  • Automotive ProcessingHead Units
    • Navigation Systems
    • Rear seat entertainment systems
    • DSP amplifiers
  • Commercial and professional audio processing

ADAU1452 Block Diagram

Analog Devices Inc. ADAU1452 SigmaDSP数字音频处理器

视频

发布日期: 2014-02-14 | 更新日期: 2024-06-26