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