AD21488WBSWZ1A02

Overview

The AD21488WBSWZ1A02 is an automotive-grade digital signal processor from the Analog Devices SHARC family, designed for high-performance audio applications. It features a single-instruction, multiple-data (SIMD) computational architecture with two processing elements capable of up to 2.7 GFLOPS at 450 MHz. The device integrates 5 Mbits of on-chip RAM and 4 Mbits of mask-programmable ROM containing Dolby and DTS audio decoders. Operating frequencies reach 450 MHz, supported by a 1.1 V core voltage and 3.3 V I/O voltage. It includes specialized peripherals such as S/PDIF transceivers, asynchronous sample rate converters, and a digital applications interface.

Feature Summary

• High-performance SIMD SHARC core with dual processing elements (PEX, PEY) supporting IEEE 32-bit/40-bit floating-point operations.
• Integrated memory configuration of 5 Mbits SRAM and 4 Mbits ROM with factory-loaded audio decoding algorithms.
• Automotive qualification compliant with AEC-Q100 standards for operation in demanding environments.
• Audio-centric peripherals including S/PDIF transceiver, four asynchronous sample rate converters, and eight serial ports.

Applications

• Automotive infotainment systems requiring high-fidelity audio processing.
• Digital audio decoding and post-processing utilizing onboard Dolby and DTS algorithms.
• Complex sound field processing and spatial audio rendering.
• Motor control and industrial applications requiring robust DSP capabilities.

Procurement Notes

Verify the specific suffix '1A02' against the manufacturer's current ordering guide to confirm package type and temperature range. Ensure compatibility with existing board layouts regarding the 176-lead LQFP_EP or alternative packages listed for the ADSP-21488 family. Confirm that the system design accounts for the 1.1 V core supply requirement and appropriate thermal management for 450 MHz operation.

Selection Notes

Select this model over other ADSP-2148x variants if automotive certification (AEC-Q100) is mandatory. Compare internal RAM sizes; the ADSP-21488 offers 5 Mbits, whereas the ADSP-21483 has 3 Mbits and some automotive versions may have reduced memory. Ensure the application benefits from the integrated audio decoders in ROM, which are absent in non-audio focused models like the ADSP-21486.

Part Context

This component belongs to the ADSP-2148x family of Super Harvard Architecture processors. It shares source code compatibility with previous SHARC generations like the ADSP-2147x and ADSP-2136x. The family is distinguished by its optimized SIMD engine and extensive peripheral set for audio and communications, positioning it between general-purpose embedded controllers and specialized ASICs for signal processing tasks.

Replacement Considerations

Direct pin-compatible replacements within the same package include other ADSP-21488 variants with different speed grades or memory configurations. Cross-family migration to ADSP-2147x requires software adaptation for SIMD features. Verify that any substitute maintains the required AEC-Q100 qualification if used in automotive contexts.