AD21489WBCPZ302

Overview

The AD21489WBCPZ302 is a high-performance digital signal processor from the Analog Devices SHARC family, optimized for audio processing. It features a single-instruction, multiple-data (SIMD) computational architecture with two processing elements capable of delivering up to 2.7 GFLOPS at its maximum operating frequency of 450 MHz. The device integrates 5 Mbits of on-chip RAM and 4 Mbits of mask-programmable ROM. It supports IEEE 32-bit and 40-bit floating-point arithmetic alongside 32-bit fixed-point formats. The processor includes an enhanced Harvard architecture allowing simultaneous instruction and data fetches, supported by an on-chip instruction cache and dual data address generators.

Feature Summary

• 450 MHz SIMD core with 2.7 GFLOPS performance
• 5 Mbits internal SRAM and 4 Mbits internal ROM
• Digital Applications Interface (DAI) with flexible signal routing
• Integrated S/PDIF transceiver and asynchronous sample rate converters

Applications

• High-performance audio processing
• Automotive audio systems
• Industrial control applications

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to confirm package type and temperature grade. Confirm availability status directly with authorized distributors as supply conditions may vary. Ensure compatibility with existing development tools and software libraries before procurement.

Selection Notes

Select this model for applications requiring high throughput in audio decoding or complex DSP algorithms. The ADSP-21489 offers the highest clock speed within the ADSP-2148x family. Consider the 88-lead LFCSP package for space-constrained designs, noting it is limited to 400 MHz operation if required by specific system constraints.

Part Context

This component belongs to the fourth-generation SHARC processor family, which includes models such as the ADSP-21483, ADSP-21486, ADSP-21487, and ADSP-21488. These processors share source code compatibility and architectural similarities but differ in memory size, clock speed, and peripheral configurations. The ADSP-21489 represents the high-performance variant within this lineup.

Replacement Considerations

The ADSP-21487 is a pin-compatible alternative within the same family, offering a 450 MHz core but with reduced internal RAM capacity. Other family members like the ADSP-21486 provide similar features but operate at lower frequencies or have different memory configurations.