AD21479WYSWZ2B02

Overview

The AD21479WYSWZ2B02 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 Single-Instruction Multiple-Data (SIMD) computational architecture delivering 1.8 GFLOPS. The device integrates 5 Mbits of on-chip RAM and 4 Mbits of factory-programmed ROM containing Dolby and DTS audio decoders. It includes automotive-grade qualification (AEC-Q100), an S/PDIF transceiver, asynchronous sample rate converters, and a Digital Applications Interface (DAI).

Feature Summary

• 300 MHz SIMD SHARC core with 1.8 GFLOPS performance.
• 5 Mbits internal SRAM and 4 Mbits internal ROM with licensed audio decoders.
• AEC-Q100 qualified for automotive environments.
• Integrated S/PDIF transceiver, four ASRCs, and eight serial ports.

Applications

• Automotive audio processing systems.
• High-fidelity consumer audio players.
• Professional audio equipment requiring Dolby/DTS decoding.

Procurement Notes

Verify the specific suffix 'WYSWZ2B02' against the manufacturer's current ordering guide, as Rev E documentation notes that certain automotive model codes may be subject to change or removal. Confirm package availability, as the 100-lead LQFP variant lacks the external port interface found in the BGA version.

Selection Notes

Select this model over the ADSP-21478 for applications requiring 5 Mbits of RAM instead of 3 Mbits. Ensure the design utilizes the 100-lead LQFP package constraints, which do not support the external AMI/SDRAM controller present in the 196-ball BGA package. Verify thermal requirements for the -40°C to +105°C operating range.

Part Context

This component belongs to the ADSP-2147x family, which shares source code compatibility with previous SHARC generations like the ADSP-2136x and ADSP-2146x. The ADSP-21479 represents the highest memory capacity within this specific series, distinguishing it from the 2 Mbit ADSP-21477 and 3 Mbit ADSP-21478 variants.

Replacement Considerations

The ADSP-21478WYSWZ2B02 is a pin-compatible alternative with reduced RAM (3 Mbits). The ADSP-21477 offers 2 Mbits of RAM. For higher performance, the ADSP-2148x series provides 400 MHz operation but requires different packaging and peripheral configurations.