ADAU1462WBCPZ150

Overview

The ADAU1462WBCPZ150 is an automotive-qualified SigmaDSP digital audio processor featuring a 32-bit core operating at up to 147.456 MHz. It provides 48 kWords of data memory and 16 kWords of program memory within a 72-lead LFCSP package. The device supports 48-channel, 32-bit digital I/O at sample rates up to 192 kHz, including four serial input/output ports, stereo S/PDIF interfaces, and four PDM microphone channels. Integrated asynchronous sample rate converters (ASRCs) offer 139 dB dynamic range with ratios from 1:8 to 7.75:1. Control is managed via slave and master I²C/SPI interfaces, with standalone operation enabled by self-boot from serial EEPROM.

Feature Summary

• Automotive-grade 32-bit SigmaDSP core running at 147.456 MHz with 48 kWords data and 16 kWords program memory.
• Supports 48-channel digital audio I/O across four serial ports, stereo S/PDIF, and four PDM microphone inputs.
• Integrates eight stereo ASRCs providing 139 dB dynamic range for flexible multirate audio processing.
• Features independent slave and master I²C/SPI control ports for system integration and peripheral management.

Applications

• Automotive head units
• Rear seat entertainment systems
• Trunk amplifiers

Procurement Notes

Verify the specific suffix '150' confirms the 147.456 MHz core frequency variant, distinct from the 294.912 MHz ADAU1462WBCPZ300. Ensure the LFCSP-72 package footprint matches the design requirements. Confirm RoHS compliance and AEC-Q100 qualification status for automotive deployment.

Selection Notes

Select this model when a lower clock speed than the maximum 294.912 MHz is sufficient for the algorithm load, potentially reducing power consumption. Compare against the ADAU1466 if additional program or data memory is required. Verify that the 16 kWords program memory meets the complexity of the intended signal processing flow.

Part Context

This component belongs to the ADAU1462/ADAU1466 family, which are pin and register compatible with earlier ADAU1450/1451/1452 processors. The '150' designation specifically identifies the version optimized for 147.456 MHz operation, offering a balance between processing capability and power efficiency compared to the higher-frequency variants.

Replacement Considerations

The ADAU1462WBCPZ300 serves as a higher-performance substitute with identical pinout but operates at 294.912 MHz. The ADAU1466WBCPZ300 offers increased memory capacity. Direct replacement requires verifying that the target application does not rely on the specific timing characteristics of the 147.456 MHz core.