ADAU1452KCPZRL

Overview

The ADAU1452KCPZRL is an automotive-qualified SigmaDSP digital audio processor featuring a 32-bit core operating at up to 294.912 MHz on a 1.2 V supply. It provides 40 kWords of data RAM and 8 kWords of program memory, supporting up to 6144 SIMD instructions per sample at 48 kHz. The device includes four serial input/output ports, stereo S/PDIF interfaces, eight stereo asynchronous sample rate converters (ASRCs), and four PDM microphone channels. It operates within a commercial temperature range of 0°C to +70°C and utilizes a 72-lead LFCSP package.

Feature Summary

• Automotive-grade SigmaDSP core with 294.912 MHz frequency and 40 kWords data RAM
• Integrated stereo S/PDIF transceiver and eight stereo ASRCs for multirate audio
• Four configurable serial ports and four PDM microphone inputs
• Standalone operation via self-boot from serial EEPROM

Applications

• Automotive head units and navigation systems
• Rear seat entertainment systems
• DSP amplifiers for vehicle sound systems

Procurement Notes

Verify the specific K suffix indicates the 0°C to +70°C commercial temperature grade rather than the standard -40°C to +105°C automotive grade. Confirm the CPZRL suffix corresponds to the 72-lead LFCSP package in reel packaging. Cross-reference the exact part number against the manufacturer's current ordering guide to ensure availability and correct revision status.

Selection Notes

Select this component when an automotive-qualified DSP is required but the application operates within a commercial temperature range. The 40 kWords data memory supports complex multi-channel processing algorithms. Ensure the design accommodates the 1.2 V core voltage and 3.3 V I/O requirements. Verify that the 294.912 MHz clock speed meets the real-time processing demands of the intended audio signal flow.

Part Context

The ADAU1452K is a variant of the ADAU1452 family, distinguished primarily by its restricted operating temperature range of 0°C to +70°C. While functionally identical to the wider temperature range ADAU1452 regarding memory and peripherals, it is categorized separately in the product selection table. The CPZRL designation specifies the leadless chip scale package and tape-and-reel shipping format.

Replacement Considerations

The ADAU1452WBCPZ-RL serves as a direct functional replacement if the wider -40°C to +105°C automotive temperature rating is acceptable for the application.