AD21477WYSWZ1A02

Overview

The AD21477WYSWZ1A02 is a high-performance 32-bit/40-bit floating-point digital signal processor from the SHARC family, optimized for audio processing. It operates at a maximum frequency of 200 MHz and features a Single-Instruction, Multiple-Data (SIMD) computational architecture. The device includes 2 Mbits of on-chip RAM and lacks internal ROM. Key peripherals include a Digital Applications Interface (DAI), Serial Ports, S/PDIF transceiver, Asynchronous Sample Rate Converters (ASRC), and an Input Data Port (IDP). It supports Variable Instruction Set Architecture (VISA) for code optimization.

Feature Summary

• 200 MHz operating frequency with SIMD computational engine
• 2 Mbits on-chip SRAM configured across four memory blocks
• Audio-centric peripherals including DAI, ASRC, and S/PDIF transceiver
• Variable Instruction Set Architecture (VISA) support

Applications

• High performance audio processing
• Automotive applications (AEC-Q100 qualified models)
• Medical imaging and portable medical devices
• Motor control systems

Procurement Notes

Verify the specific ordering suffix to confirm package type, temperature range, and speed grade. The 'WY' indicates an 88-lead LFCSP_VQ package. Confirm that the '1A' suffix corresponds to the 200 MHz speed bin and appropriate temperature rating. Check for automotive qualification requirements if applicable to the end application.

Selection Notes

Select this model when 200 MHz processing power is sufficient for the target algorithm. Compare against ADSP-21478 or ADSP-21479 if higher frequencies (up to 300 MHz) or larger memory capacities (3 Mbits or 5 Mbits) are required. Ensure the 88-lead LFCSP_VQ package fits the PCB layout constraints, as it lacks the external port interface available in the 196-ball BGA version.

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-21477 represents the entry-level memory configuration within this specific speed-grade family, providing a balance of performance and cost for embedded DSP applications.

Replacement Considerations

Direct pin-compatible replacements within the same package are limited due to varying memory sizes. The ADSP-21478 or ADSP-21479 may function if software is adapted for larger memory maps, but they operate at higher speeds. Verify thermal characteristics and voltage levels (1.2V core, 3.3V I/O) match the existing design.