The ADAU1463/ADAU1467 are automotive qualified audio processors that far exceed the digital signal processing capabilities of earlier SigmaDSP® devices. They are pin and register compatible with each other, as well as with the ADAU1450/ADAU1451/ADAU1452 SigmaDSP® processors. The restructured hardware architecture is optimized for efficient audio processing. The audio processing algorithms support a seamless combination of stream processing (sample-by-sample), multirate processing, and block processing paradigms. The SigmaStudio® graphical programming tool enables the creation of signal processing flows that are interactive, intuitive, and powerful. The enhanced 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.
- 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 1.2V
- Up to 24k words of program memory
- Up to 80k words of parameter/data RAM
- Up to 6144 SIMD instructions per sample at 48kHz
- Up to 1600ms 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
- 8 stereo ASRCs from 1:8 up to 7.75:1 ratio and 139dB dynamic range
- Stereo S/PDIF input and output at 192kHz
- 4 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
- 8-channel, 10-bit SAR auxiliary control ADC
- 26 multipurpose pins for digital controls and outputs
- On-chip regulator for generating 1.2V from 3.3V supply
- 88-lead, 12mm × 12mm LFCSP package with 5.3mm exposed pad
- Temperature range: -40°C to +105°C
