Description

The ADAU1328BSTZ is an electronic component model belonging to the Interface - CODECs category. It is an audio processor that was designed specifically for automotive applications and is part of the SigmaDSP® family of devices. It has a revamped hardware architecture that enables efficient audio processing with fully programmable DSP capabilities. With sigma Studio, it has a proprietary graphical programming tool for custom signal flows allowing enhancing sound processing capabilities.

Specifications and features

• Highly qualified for automotive usage
• Fully programmable audio digital signal processing
• Implemented with the proprietary graphical programming tool SigmaStudio for the development of custom signal flows
• 32-bit SigmaDSP core at 1.2 V with a maximum of 294.912 MHz
• 6144 SIMD (Single Instruction Multiple Data) instructions per sample are supported at 48kHz sample rate
• 40 kWords of parameter and data RAM
• Up to 800ms delay pool at 48kHz digital audio
• Audio Input and Output with routing
• Supports 4 serial input ports, 4 serial output ports
• Supports up to 48-channel, 32-bit digital I/O at a maximum sample rate of 192kHz
• Flexible configuration of formats; TDM, I2S, left and right-justified formats, PCM
• Up to 8 stereo ASRCs from 1:8 up to 7.75:1 ratio and 139dB DNR
• Stereo S/PDIF input and output (not on the ADAU1450)
• Support for four PDM microphone input channels
• Multichannel, byte addressable TDM serial ports
• Includes clock oscillator for generating the master clock from a crystal
• Supports integer PLL and flexible clock generators
• Integrated die temperature sensor
• I2C and SPI control interfaces that support both slave and master modes of operation
• Standalone operation with Self-boot support from serial EEPROM
• Features 6-channel, 10-bit SAR (Successive Approximation Register) 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 a 5.3 mm exposed pad
• Temperature range: -40°C to +105°C

Application Scenarios

The ADAU1328BSTZ is an intended component for use in multiple application scenarios, including:

• Automotive audio processing
• Head units
• Navigation systems
• Rear seat entertainment systems
• DSP amplifiers (sound system amplifiers)
• Commercial and professional audio processing

Comparison

• The ADAU1328BSTZ is specifically designed for efficient audio processing with high programmability through a proprietary graphical programming tool for custom signal flows.
• It has a wide remarkable range of supported clocks, inputs, and formats ranging from I2C to SPI among others.
• The die temperature sensor is integrated in the ADAU1328BSTZ preventing unnecessary power consumption
• It has multi-purpose pins for digital controls and outputs.
• Supports various microphone input channels ranging from stereo to PDM.

• The ADAU1328BSTZ is exclusively designed for automotive applications limiting its scope of usability to a specific industry.
• It has limited S/PDIF input and output capabilities.
• The cost of this electronic component is higher compared to other audio processors.