ADSP-21489BSWZ-3A

Digital Signal Processor Dsp Overview

The ADSP-21489BSWZ-3A is a high-performance 32-bit/40-bit floating-point digital signal processor from the SHARC family, optimized for audio processing. It features a single-instruction, multiple-data (SIMD) computational architecture with two processing elements (PEx and PEy). The device operates at a maximum instruction rate of 450 MHz and includes 5 Mbits of on-chip RAM and 4 Mbits of on-chip ROM. Key architectural features include an enhanced Harvard architecture allowing simultaneous fetch of one instruction and four operands, an on-chip instruction cache, and Variable Instruction Set Architecture (VISA) support for code compression. The processor is AEC-Q100 qualified for automotive applications.

Digital Signal Processor Dsp Feature Summary

• 450 MHz SIMD core delivering up to 2.7 GFLOPS performance
• 5 Mbits on-chip SRAM and 4 Mbits mask-programmable ROM
• Digital Applications Interface (DAI) with flexible signal routing unit (SRU)
• Integrated S/PDIF transceiver, asynchronous sample rate converters, and eight serial ports

Digital Signal Processor Dsp Applications

• High-performance audio processing and surround sound decoding
• Automotive infotainment systems requiring AEC-Q100 qualification
• Medical imaging and speech recognition algorithms
• Real-time noise cancellation and adaptive filtering

Digital Signal Processor Dsp Procurement Notes

Verify the specific suffix '3A' against the manufacturer's current ordering guide, as datasheet revisions may update suffix definitions or availability status. Confirm package type and temperature range requirements match the design specifications. Check for end-of-life notifications or recommended new replacements if the part is discontinued.

Digital Signal Processor Dsp Selection Notes

Select this model for applications requiring high-throughput floating-point arithmetic and large on-chip memory. Ensure the system design accommodates the 176-lead LQFP EPAD package if using the full peripheral set. Consider VISA support for code size reduction in memory-constrained environments. Verify compatibility with existing SHARC assembly codebases due to source code compatibility.

Digital Signal Processor Dsp Part Context

The ADSP-21489 is part of the fourth-generation SHARC processor family, which also includes models like ADSP-21483, ADSP-21486, ADSP-21487, and ADSP-21488. These processors share architectural similarities but differ in memory size, clock speed, and peripheral configurations. The ADSP-21489 offers higher performance compared to the 400 MHz variants in the same series.

Digital Signal Processor Dsp Replacement Considerations

Direct pin-compatible replacements within the ADSP-2148x family include ADSP-21483, ADSP-21486, ADSP-21487, and ADSP-21488, subject to memory and speed requirements. Verify software compatibility and peripheral availability when substituting.