ADSP-21489BSWZ-4A

Digital Signal Processor Dsp Overview

The ADSP-21489BSWZ-4A is a fourth-generation SHARC digital signal processor optimized for high-performance audio applications. It features a single-instruction, multiple-data (SIMD) computational architecture with two processing elements capable of delivering up to 2700 MFLOPS at a maximum operating frequency of 450 MHz. The device integrates 5 Mbits of on-chip RAM and 4 Mbits of on-chip ROM. It supports IEEE 32-bit single-precision and 40-bit extended-precision floating-point arithmetic alongside 32-bit fixed-point formats. The processor includes hardware accelerators for FIR, IIR, and FFT operations, along with a Digital Applications Interface (DAI) containing eight serial ports, S/PDIF transceivers, and asynchronous sample rate converters.

Digital Signal Processor Dsp Feature Summary

• 450 MHz SIMD core performance with 2700 MFLOPS throughput
• 5 Mbits on-chip SRAM and 4 Mbits mask-programmable ROM
• Hardware-accelerated FIR, IIR, and FFT processing modules
• Digital Applications Interface (DAI) with eight SPORTs, S/PDIF Tx/Rx, and four ASRCs
• Variable Instruction Set Architecture (VISA) for code density optimization

Digital Signal Processor Dsp Applications

• Automotive audio systems and surround sound decoding
• Professional audio mixing consoles and processors
• Industrial control and motor drive applications
• Medical imaging and speech recognition systems

Digital Signal Processor Dsp Procurement Notes

Verify the specific suffix 'BSWZ-4A' against the manufacturer's current ordering guide to confirm package type, temperature range, and automotive qualification status. Ensure that the required memory configuration and peripheral availability match the design specifications before procurement.

Digital Signal Processor Dsp Selection Notes

Select this model when high-throughput floating-point processing is required for complex audio algorithms. The 450 MHz speed and 5 Mbit RAM support demanding real-time tasks without external memory in many cases. Compare with ADSP-21486 or ADSP-21487 if lower clock speeds or different memory sizes are sufficient for the application.

Digital Signal Processor Dsp Part Context

This component belongs to the Analog Devices SHARC ADSP-2148x family, which includes the ADSP-21483, ADSP-21486, ADSP-21487, and ADSP-21488. All members share source code compatibility and pin-out compatibility within their respective packages, facilitating migration between devices with varying performance and memory configurations.

Digital Signal Processor Dsp Replacement Considerations

The ADSP-21486BSWZ-4A and ADSP-21487BSWZ-4A are pin-compatible alternatives within the same family. Selection depends on whether the reduced clock speed (400 MHz) or different internal memory allocation meets the system requirements.