ADAU1472BCBZRL

Digital Signal Processor Dsp Overview

The ADAU1472BCBZRL is a SigmaDSP digital audio processor featuring a 270 MHz Cadence Tensilica HiFi 4 core. It integrates 320 kB L1 SRAM, 160 kB L1 cache, and 2 MB L2 system SRAM. The device supports four stereo asynchronous sample rate converters (ASRCs), six digital audio I/O ports, S/PDIF transceiver, and 14 PDM microphone inputs. Operating voltages include DVDD at 1.2 V and IOVDD from 1.8 V to 3.3 V. It utilizes a 144-ball WLCSP package with a 0°C to 85°C operating range.

Digital Signal Processor Dsp Feature Summary

• High-performance 270 MHz DSP core with IEEE floating-point multiplier
• Integrated voice detector with low-power always-listening mode
• Support for up to 14 PDM microphones and dual PDM outputs
• Flexible serial interfaces including I2S, TDM, PCM, and S/PDIF

Digital Signal Processor Dsp Applications

• Far field voice interface devices
• Audio source separation systems
• Embedded deep learning for audio processing
• Commercial and professional audio processing

Digital Signal Processor Dsp Procurement Notes

Verify the specific suffix BCBZRL against the manufacturer's ordering guide to confirm packaging quantity and reel specifications. Ensure compatibility with the required IOVDD voltage range of 1.8 V to 3.3 V during design validation. Confirm thermal management requirements for the WLCSP package in the final application environment.

Digital Signal Processor Dsp Selection Notes

Select this component for applications requiring high computational density for voice detection or deep learning algorithms. The large 2 MB L2 SRAM accommodates complex code and data tables. Consider the integrated ASRCs for multi-rate audio systems and the flexible clock generators for supporting multiple sample rates simultaneously.

Digital Signal Processor Dsp Part Context

This part belongs to the ADAU1472 family of SigmaDSP processors. It is designed to replace larger, general-purpose DSPs by offering lower power consumption for equivalent processing loads. The device supports self-boot from external SPI flash memory, simplifying system initialization and reducing external component count.

Digital Signal Processor Dsp Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should evaluate other members of the ADAU14xx series or HiFi DSP family based on specific memory and interface requirements.