AD21479WYSWZ2A02

Overview

The AD21479WYSWZ2A02 is a high-performance 32-bit/40-bit floating-point SHARC digital signal processor optimized for audio applications. Operating at up to 300 MHz, it features a SIMD computational architecture delivering 1.8 GFLOPS. The device includes 5 Mbits of on-chip RAM and 4 Mbits of factory-programmed ROM containing Dolby and DTS decoders. It utilizes a Super Harvard Architecture with dual processing elements (PEX, PEY) and two data address generators. Key peripherals include a Digital Applications Interface (DAI), S/PDIF transceiver, asynchronous sample rate converters, and an external port supporting AMI and SDRAM interfaces.

Feature Summary

• 300 MHz operating frequency with 1.8 GFLOPS SIMD performance
• 5 Mbits on-chip SRAM and 4 Mbits on-chip ROM with audio decoders
• Digital Applications Interface (DAI) with precision clock generators and S/PDIF transceiver
• External port interface supporting AMI and SDRAM controllers

Applications

• High-performance audio processing systems
• Automotive infotainment and control units
• Medical imaging equipment
• Communications and test instrumentation

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current product status, as automotive-grade variants may have distinct availability or qualification requirements. Confirm RoHS compliance and moisture sensitivity levels prior to integration into surface-mount assembly processes.

Selection Notes

Select this model when maximum on-chip memory (5 Mbits RAM) and high-speed external memory access via SDRAM are required. Ensure the application utilizes the 100-lead LQFP package constraints, noting that certain peripherals like the external port and real-time clock are restricted to specific package types within the family.

Part Context

This component belongs to the ADSP-2147x family of SHARC processors, which are code-compatible with previous generations such as the ADSP-2136x and ADSP-2146x series. The ADSP-21479 variant specifically offers the highest memory capacity in the 100-lead LQFP configuration compared to the ADSP-21477 and ADSP-21478 models.

Replacement Considerations

Direct substitutes within the same package and pinout include other ADSP-2147x variants, though memory configurations differ. Verify software compatibility if migrating between ADSP-21477, ADSP-21478, and ADSP-21479 due to varying internal memory maps.