ADSP-21489BSWZ-4B

Digital Signal Processor Dsp Overview

The ADSP-21489BSWZ-4B is a high-performance digital signal processor from Analog Devices, belonging to the fourth-generation SHARC family. It features a single-instruction, multiple-data (SIMD) core operating at up to 450 MHz, delivering 2700 MFLOPS. The device integrates 5 Mbits of on-chip RAM and 4 Mbits of mask-programmable ROM. Key architectural elements include hardware accelerators for FIR, IIR, and FFT operations, along with Variable Instruction Set Architecture (VISA) support for code density optimization. It includes an external memory interface supporting SDRAM and asynchronous memory, alongside a comprehensive Digital Applications Interface (DAI) for audio and peripheral connectivity.

Digital Signal Processor Dsp Feature Summary

• 450 MHz SIMD computational engine with 32/40-bit floating-point support
• 5 Mbits on-chip SRAM and 4 Mbits on-chip ROM
• Hardware-accelerated FIR, IIR, and FFT processing modules
• Digital Applications Interface (DAI) with Signal Routing Unit (SRU)
• AEC-Q100 qualified for automotive applications

Digital Signal Processor Dsp Applications

• High-performance audio processing and surround sound decoding
• Automotive infotainment and control systems
• Industrial control and motor drive applications
• Medical imaging and diagnostic equipment

Digital Signal Processor Dsp Procurement Notes

Verify the specific suffix BSWZ-4B against the manufacturer's current ordering guide to confirm package type, temperature range, and qualification status. Confirm availability through authorized distributors as supply levels may vary. Ensure compliance with RoHS directives and check for any recent revision updates in the datasheet prior to procurement.

Digital Signal Processor Dsp Selection Notes

Select this model for applications requiring high throughput in audio or general DSP tasks due to its 450 MHz clock speed and hardware accelerators. Consider the 5 Mbit internal RAM capacity for algorithm storage needs. Verify that the 176-lead LQFP EPAD package fits the PCB layout constraints. Ensure software development tools like CrossCore Embedded Studio are configured for VISA instruction support if code density is a priority.

Digital Signal Processor Dsp Part Context

This component is part of the ADSP-2148x family, which includes models such as the ADSP-21483, ADSP-21486, ADSP-21487, and ADSP-21488. These devices share source code compatibility and similar peripheral architectures but differ in memory sizes, clock speeds, and specific feature sets like audio decoders or external port interfaces. The ADSP-21489 represents the higher performance tier within this group.

Digital Signal Processor Dsp Replacement Considerations

Direct pin-compatible replacements within the same family include the ADSP-21483, ADSP-21486, ADSP-21487, and ADSP-21488. When substituting, verify differences in maximum clock frequency, on-chip RAM size, and presence of specific peripherals like the SDRAM controller or audio decoders to ensure functional equivalence.