AD21488WBCPZ202

Overview

The AD21488WBCPZ202 is an automotive-grade SHARC digital signal processor from Analog Devices, operating at a maximum frequency of 400 MHz. It features a 32-bit/40-bit floating-point SIMD architecture with 5 Mbits of on-chip RAM and 4 Mbits of mask-programmable ROM. The device integrates audio-centric peripherals including a Digital Applications Interface (DAI), S/PDIF transceiver, four asynchronous sample rate converters, eight serial ports, and precision clock generators. Packaged in an 88-lead LFCSP, it supports AEC-Q100 qualification for automotive applications.

Feature Summary

• High-performance 32-bit/40-bit floating-point SIMD core optimized for audio processing
• Large on-chip memory configuration: 5 Mbits SRAM and 4 Mbits ROM
• Integrated audio peripherals: DAI, S/PDIF transceiver, ASRCs, and SPORTs
• AEC-Q100 qualified for automotive reliability standards

Applications

• Automotive audio processing systems
• Premium audio applications requiring high-performance floating-point computation
• Digital signal processing tasks involving complex filter algorithms and FFT operations

Procurement Notes

Verify the specific suffix '202' against the manufacturer's current ordering guide to confirm package type and temperature range specifications. Ensure compatibility with development tools such as CrossCore Embedded Studio for code compilation and debugging. Confirm that the 88-lead LFCSP package constraints are met in the target PCB design.

Selection Notes

Select this model when automotive qualification (AEC-Q100) is required alongside high-performance audio processing capabilities. Compare internal memory sizes with other family members like the ADSP-21486 or ADSP-21489 if larger RAM or different package options are needed. Note that the 88-lead package does not support external port interfaces, limiting external memory expansion options compared to 176-lead variants.

Part Context

This component belongs to the ADSP-2148x family of SHARC processors, which are source-code compatible with previous generations like the ADSP-2147x and ADSP-2137x. The family utilizes Super Harvard Architecture to eliminate I/O bottlenecks. The ADSP-21488 specifically targets automotive audio applications, offering a balance of computational power and integrated peripheral connectivity within a compact footprint.

Replacement Considerations

Direct substitutes within the same package include other ADSP-2148x variants such as the ADSP-21483 or ADSP-21486, provided their memory configurations and pinouts are compatible. Verify that any replacement maintains the 400 MHz operating frequency and AEC-Q100 automotive grade requirements.