AD21488WBSWZ4B02

Overview

The AD21488WBSWZ4B02 is an automotive-grade digital signal processor from Analog Devices, belonging to the fourth-generation SHARC family. It features a single-core SIMD architecture with a maximum instruction rate of 400 MHz. The device integrates 5 Mbits of on-chip RAM and 4 Mbits of mask-programmable ROM containing audio decoding algorithms. Operating voltages are 1.1 V for the core and 3.3 V for I/O. It supports IEEE 32-bit/40-bit floating-point and 32-bit fixed-point arithmetic, delivering up to 2.4 GFLOPS performance.

Feature Summary

• Automotive AEC-Q100 qualified with -40°C to +125°C operating range
• 400 MHz SIMD core with 5 Mbits RAM and 4 Mbits ROM
• Integrated FIR, IIR, and FFT hardware accelerators
• Digital Applications Interface (DAI) with S/PDIF transceiver

Applications

• Automotive audio processing systems
• Industrial control applications requiring high-performance DSP
• Surround sound decoder implementations

Procurement Notes

Verify the specific suffix '4B02' against the manufacturer's current ordering guide to confirm package type and temperature grade. Confirm availability status as automotive variants may have restricted distribution channels compared to commercial parts.

Selection Notes

Select this model over the ADSP-21489 if a 400 MHz clock speed is sufficient and lower power consumption is prioritized. Ensure the system design accommodates the 176-lead LQFP_EP package dimensions and thermal requirements specified in the datasheet outline dimensions.

Part Context

This component is part of the ADSP-2148x family, which includes the ADSP-21483, ADSP-21486, ADSP-21487, and ADSP-21489. All members share source code compatibility and similar peripheral architectures, differing primarily in memory size, clock speed, and specific feature sets like external port interfaces.

Replacement Considerations

Direct pin-compatible substitutes within the same family include the ADSP-21486 and ADSP-21487. Verify that the replacement part meets the required clock frequency and memory capacity for the specific application.