AD21478WYCPZ1A02

Overview

The AD21478WYCPZ1A02 is a high-performance 32-bit/40-bit floating-point digital signal processor from the Analog Devices SHARC family. Operating at up to 300 MHz, it features a Single-Instruction, Multiple-Data (SIMD) computational architecture optimized for audio processing. The device includes 3 Mbits of on-chip RAM and 4 Mbits of factory-programmed ROM containing Dolby and DTS decoders. It utilizes Super Harvard Architecture with dual processing elements and supports automotive applications via AEC-Q100 qualification.

Feature Summary

• 300 MHz SIMD Core: Dual processing elements (PEX, PEY) delivering up to 1.8 GFLOPS.
• On-Chip Memory: 3 Mbits SRAM and 4 Mbits ROM with integrated audio decoders.
• Audio Peripherals: Includes S/PDIF transceiver, asynchronous sample rate converters, and precision clock generators.
• Automotive Qualified: AEC-Q100 compliant for automotive environments.

Applications

• High-performance audio processing
• Automotive infotainment systems
• Medical imaging equipment
• Communications test equipment

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current data sheet to confirm package type and temperature range. Confirm that the required audio decoder IP licenses are secured, as the ROM content is subject to licensing agreements. Check for availability of development tools compatible with the SHARC architecture.

Selection Notes

Select this model over the ADSP-21477 for increased memory capacity (3 Mbits RAM vs. 2 Mbits). Choose the ADSP-21479 if 5 Mbits of RAM is required. Ensure the application does not require external port interfaces, as these are unavailable in the LQFP package associated with this part number.

Part Context

This component belongs to the ADSP-2147x series, which shares source code compatibility with previous SHARC generations like the ADSP-2136x and ADSP-2146x. It is designed to replace legacy processors in high-density audio and control applications while offering improved computational throughput through SIMD execution.

Replacement Considerations

Direct pin-compatible replacements within the same package are limited to other ADSP-2147x variants. Verify software compatibility when migrating between ADSP-21477, ADSP-21478, and ADSP-21479 due to differences in internal memory maps.