ADSP-21488KSWZ-4A

Digital Signal Processor Dsp Overview

The ADSP-21488KSWZ-4A is a 32-bit/40-bit floating-point digital signal processor from the SHARC family, optimized for high-performance 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 400 MHz and includes 5 Mbits of on-chip RAM and 4 Mbits of mask-programmable ROM containing audio decoders. Key peripherals include a Digital Applications Interface (DAI), S/PDIF transceiver, asynchronous sample rate converters, and an external port supporting AMI and SDRAM interfaces.

Digital Signal Processor Dsp Feature Summary

• High-performance SIMD core delivering up to 2.7 GFLOPS at 450 MHz
• On-chip memory configuration of 5 Mbits RAM and 4 Mbits ROM
• Integrated audio-centric peripherals including DAI, S/PDIF, and ASRCs
• Variable Instruction Set Architecture (VISA) for code efficiency

Digital Signal Processor Dsp Applications

• High-quality audio processing systems
• Medical imaging applications
• Communications equipment
• Speech recognition systems

Digital Signal Processor Dsp Procurement Notes

Verify the specific suffix '4A' against the manufacturer's current ordering guide to confirm package type and temperature range specifications. Ensure compatibility with existing development tools and VISA-enabled code generation software for optimal performance utilization.

Digital Signal Processor Dsp Selection Notes

Select this model for applications requiring significant on-chip memory (5 Mbits RAM) compared to lower-capacity variants like the ADSP-21483. Confirm that the 400 MHz operating frequency meets system timing requirements and that the 176-lead LQFP EPAD package fits the PCB layout constraints.

Digital Signal Processor Dsp Part Context

This component belongs to the ADSP-2148x family of SHARC processors, which are source-code compatible with previous generations such as the ADSP-2147x and ADSP-2136x families. The family shares a common Super Harvard Architecture and SIMD computational engine, facilitating migration from older DSP designs while offering enhanced performance through parallel processing capabilities.

Digital Signal Processor Dsp Replacement Considerations

Direct functional replacements within the same package and pinout include other members of the ADSP-2148x family, such as the ADSP-21486 or ADSP-21489, provided their specific memory configurations and clock speeds align with the design requirements.