ADAU1452WBCPZ-RL

Overview

The ADAU1452WBCPZ-RL is an automotive-qualified, fully programmable SigmaDSP digital audio processor. It features a 32-bit DSP core operating at up to 294.912 MHz on a 1.2 V supply. The device includes 40 kWords of data RAM and 8 kWords of program memory. It supports 48-channel, 32-bit digital I/O with sample rates up to 192 kHz. Key hardware blocks include four serial input/output ports, eight stereo asynchronous sample rate converters (ASRCs), S/PDIF interfaces, and four PDM microphone channels. Control is managed via slave or master I2C/SPI interfaces.

Feature Summary

• Automotive-grade AEC-Q100 qualification for -40°C to +105°C operation
• Up to 294.912 MHz 32-bit SigmaDSP core executing 6144 SIMD instructions per sample at 48 kHz
• Integrated 8-channel ASRC bank supporting ratios from 1:8 to 7.75:1 with 139 dB dynamic range
• On-chip voltage regulator generating 1.2 V DVDD from a 3.3 V AVDD/PVDD supply

Applications

• Automotive head units and navigation systems
• Rear seat entertainment systems
• DSP amplifiers and sound system processors
• Commercial and professional audio processing hubs

Procurement Notes

Verify the specific suffix against the manufacturer's ordering guide to confirm clock frequency and temperature grade. The 'W' indicates the wide temperature range (-40°C to +105°C). Confirm package type LFCSP-72 and reel packaging requirements during sourcing. Cross-reference the datasheet revision to ensure compatibility with existing firmware configurations.

Selection Notes

Select this component for complex multirate audio architectures requiring high instruction throughput. The 40 kWords data memory supports extensive algorithm storage compared to lower-tier variants like the ADAU1450. Ensure the design utilizes the integrated PLL and clock generators to minimize external crystal dependencies. Validate that the 1.2 V core voltage and 3.3 V analog supplies align with the target power budget.

Part Context

This part belongs to the ADAU145x family of SigmaDSP processors. It is distinguished from the ADAU1452-150 by its higher 294.912 MHz core speed and from the ADAU1450 by the inclusion of ASRCs and S/PDIF interfaces. The WBCPZ suffix denotes the 72-lead LFCSP package and automotive temperature rating.

Replacement Considerations

Direct functional replacements within the same package and pinout are limited to other ADAU1452 variants. The ADAU1452K offers identical electrical performance but is restricted to the 0°C to +70°C commercial temperature range. The ADAU1452-150 provides a lower 147.456 MHz core speed.