ADSP-21489KSWZ-4B

Digital Signal Processor Dsp Overview

The ADSP-21489KSWZ-4B is a high-performance 32-bit/40-bit floating-point digital signal processor from the fourth-generation SHARC family. It features a single-instruction, multiple-data (SIMD) computational architecture with two processing elements (PEx and PEy), delivering up to 2.7 GFLOPS at its maximum operating frequency of 450 MHz. The device integrates 5 Mbits of on-chip SRAM and 4 Mbits of mask-programmable ROM. Key hardware accelerators include FIR, IIR, and FFT units. It supports Variable Instruction Set Architecture (VISA) for code density improvements and includes an extensive peripheral set via Digital Applications Interface (DAI) and Digital Peripheral Interface (DPI).

Digital Signal Processor Dsp Feature Summary

• SIMD Core: Dual processing elements (PEx, PEy) supporting IEEE 32-bit and 40-bit floating-point formats.
• Memory: 5 Mbits on-chip RAM and 4 Mbits on-chip ROM; supports VISA for compressed instruction execution.
• Accelerators: Hardware-accelerated FIR, IIR, and FFT modules for high-speed audio processing.
• Peripherals: Digital Applications Interface (DAI) with S/PDIF transceiver, 8 serial ports, and Asynchronous Sample Rate Converters (ASRC).

Digital Signal Processor Dsp Applications

• High-performance automotive audio systems and surround sound decoding.
• Industrial control applications requiring precise timing and real-time processing.
• Medical imaging and speech recognition systems.

Digital Signal Processor Dsp Procurement Notes

Verify the specific suffix '4B' against the manufacturer's current ordering guide, as it may denote a specific temperature grade, package variant, or factory configuration. Confirm AEC-Q100 qualification status if intended for automotive use. Ensure development tools like CrossCore Embedded Studio are compatible with the specific silicon revision.

Digital Signal Processor Dsp Selection Notes

Select this model for applications requiring 450 MHz peak performance and 5 Mbits of internal memory. Compare with ADSP-21486 or ADSP-21487 if lower clock speeds or different memory configurations suffice. Ensure the 176-lead LQFP_EP package fits the PCB layout constraints. Verify that external memory interfaces (SDRAM/AMI) are required, as smaller packages omit these.

Digital Signal Processor Dsp Part Context

This component belongs to the ADSP-2148x family, which includes the ADSP-21483, ADSP-21486, ADSP-21487, and ADSP-21488. All members share source code compatibility with previous SHARC generations and offer pin-compatible options across various package types including 176-lead LQFP, 100-lead LQFP, and 88-lead LFCSP.

Digital Signal Processor Dsp Replacement Considerations

Direct pin-compatible replacements within the same family include the ADSP-21486KSWZ-4B (400 MHz, 5 Mbit RAM) or ADSP-21487KSWZ-4B (450 MHz, 2/3 Mbit RAM). Code compatibility is maintained across the family, but memory size and clock speed differences must be accounted for in system design.