ADAU1452屬于集成電路（IC）的DSP（數(shù)字信號處理器）。由亞德諾半導體技術有限公司制造生產(chǎn)的ADAU1452DSP（數(shù)字信號處理器）數(shù)字信號處理器是類似于微處理器或微控制器的器件，但區(qū)別在于其內(nèi)部架構經(jīng)修改，適用于對連續(xù)數(shù)據(jù)流連續(xù)執(zhí)行以乘法和加法運算為主的算法，而不是以條件邏輯或大量并發(fā)進程為主的算法。該器件通常用于諸如音頻或視頻信號處理等應用。

GENERAL DESCRIPTION

The ADAU1452/ADAU1451/ADAU1450 are automotive qualified audio processors that far exceed the digital signal processing capabilities of earlier SigmaDSP? devices. The restructured hardware architecture is optimized for efficient audio processing.

FEATURES

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

Up to 294.912 MHz, 32-bit SigmaDSP core at 1.2 V

Up to 6144 SIMD instructions per sample at 48 kHz

Up to 40 kWords of parameter/data RAM

Up to 800 ms digital audio delay pool at 48 kHz

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 192 kHz

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 139 dB DNR

Stereo S/PDIF input and output (not on the ADAU1450)

Four PDM microphone input channels

Multichannel, byte addressable TDM serial ports

Clock oscillator for generating master clock from crystal

Integer PLL and flexible clock generators

Integrated die temperature sensor

I2C and SPI control interfaces (both slave and master)

Standalone operation

Self boot from serial EEPROM

6-channel, 10-bit SAR auxiliary control ADC

14 multipurpose pins for digital controls and outputs

On-chip regulator for generating 1.2 V from 3.3 V supply

72-lead, 10 mm × 10 mm LFCSP package with 5.3 mm exposed pad

Temperature range: ?40°C to +105°C

APPLICATIONS

Automotive audio processing

Head units

Navigation systems

Rear seat entertainment systems

DSP amplifiers (sound system amplifiers)

Commercial and professional audio processing