ADAU1452WBCPZ

Overview

The ADAU1452WBCPZ 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 provides 40 kWords of data RAM and 8 kWords of program memory. It supports 48-channel, 32-bit digital I/O at sample rates up to 192 kHz via four serial input and output ports. Key hardware includes eight stereo asynchronous sample rate converters (ASRCs), S/PDIF input/output, four PDM microphone channels, and an integrated voltage regulator. Control interfaces include slave and master I2C and SPI ports.

Feature Summary

• Automotive-grade qualification with a 32-bit DSP core running up to 294.912 MHz
• 40 kWords data RAM and 8 kWords program memory for complex audio algorithms
• Eight stereo ASRCs supporting ratios from 1:8 to 7.75:1 with 139 dB dynamic range
• Integrated S/PDIF transceiver and four PDM microphone inputs

Applications

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

Procurement Notes

Verify the specific ordering suffix to confirm the maximum clock frequency and temperature grade. The base model operates at 294.912 MHz across -40°C to +105°C. Ensure compatibility with the required packaging format and check for any recent manufacturing changes or lifecycle status updates directly from Analog Devices documentation before procurement.

Selection Notes

Select this component when high channel count audio routing and multirate conversion are required in automotive environments. Compare against the ADAU1452-150 if a lower 147.456 MHz core speed is sufficient for power reduction. Verify that the 40 kWords data memory meets algorithm requirements, as the ADAU1451 offers only 16 kWords.

Part Context

This part belongs to the ADAU145x family of SigmaDSP processors. It shares the same package and control interface architecture as the ADAU1451 and ADAU1450 but distinguishes itself through higher data memory capacity and the inclusion of asynchronous sample rate converters. The WBCPZ suffix indicates the 72-lead LFCSP package variant.

Replacement Considerations

The ADAU1452KCPZ serves as a functional replacement within the 0°C to +70°C temperature range. For lower performance needs, the ADAU1451WBCPZ offers identical core speeds but reduced data memory. The ADAU1452WBCPZ150 provides the same memory and ASRC configuration but operates at a reduced 147.456 MHz core frequency.