AD21488WBSWZ2B02

Overview

The AD21488WBSWZ2B02 is an automotive-grade SHARC digital signal processor from Analog Devices, designed for high-performance audio applications. It features a 32-bit/40-bit floating-point 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. Key peripherals include the Digital Applications Interface (DAI), S/PDIF transceiver, asynchronous sample rate converters, and eight serial ports. It is AEC-Q100 qualified and housed in a 176-lead LQFP_EP package.

Feature Summary

• SIMD Architecture: Dual processing elements (PEX, PEY) delivering up to 2.7 GFLOPS at 450 MHz; this model rated at 400 MHz.
• On-Chip Memory: 5 Mbits SRAM and 4 Mbits ROM containing Dolby and DTS audio decoding algorithms.
• Audio Peripherals: Integrated DAI, S/PDIF transceiver, four ASRCs, eight SPORTs, and precision clock generators.
• Automotive Qualification: AEC-Q100 Grade 1 certified for operation between -40°C and +125°C junction temperature.

Applications

• Premium automotive audio systems and infotainment processors
• High-channel-count digital amplifiers requiring low latency
• Advanced driver-assistance systems (ADAS) audio processing
• Professional audio equipment utilizing S/PDIF and ASRC interfaces

Procurement Notes

Verify the specific suffix '2B02' against the manufacturer's current ordering guide to confirm pinout compatibility and internal memory configuration. As an automotive-qualified component, ensure that the supply chain documentation supports AEC-Q100 compliance requirements for your specific production environment.

Selection Notes

Select this model over the ADSP-21489 if a 400 MHz operating frequency is sufficient, as it offers cost optimization compared to the 450 MHz variant. Ensure the design utilizes the 176-lead LQFP_EP package to access the external port interface, which is absent in smaller package options like the 100-lead or 88-lead variants.

Part Context

This component belongs to the ADSP-2148x family, which shares source code compatibility with previous SHARC generations such as the ADSP-2136x and ADSP-2146x. The ADSP-21488 specifically targets automotive markets, providing robust audio processing capabilities within a single integrated circuit solution optimized for noise immunity and thermal performance.

Replacement Considerations

Direct functional replacements within the same package include other ADSP-2148x models such as the ADSP-21486 or ADSP-21489, provided the memory size and clock speed differences are acceptable for the application design.