Description

The ADAU1421YSTZ is an audio processor that provides advanced digital signal processing capabilities specifically designed for automotive applications. This IC chip is an upgraded version of the SigmaDSP® devices, and its hardware architecture is optimized for powerful and efficient audio processing.

Specifications and 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 a 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

Application Scenarios

The ADAU1421YSTZ IC chip is mainly used in automotive audio processing, head units, navigation systems, rear seat entertainment systems, DSP amplifiers (sound system amplifiers), commercial, and professional audio processing

Comparison

• Qualified for automotive applications
• Powerful and efficient audio processing capabilities
• Fully programmable audio DSP with custom signal flows

• S/PDIF input and output not available on ADAU1450