ADSP-21489BSWZ-4A ADI SHARC High-Performance 32/40-bit Floating-Point DSP with Hardware Accelerators 8-Ch ASRC 400MHz LQFP-100

ADSP-21489BSWZ-4A Product Overview

The ADSP-21489BSWZ-4A from Analog Devices is a high-performance 32/40-bit floating-point digital signal processor (DSP) based on the SHARC architecture, designed for professional audio, advanced industrial control, and real-time signal processing applications demanding high-precision floating-point computation. The ADSP-21489BSWZ-4A integrates a single-core SHARC processor operating at up to 400MHz and provides 5Mbit of on-chip SRAM. The ADSP-21489BSWZ-4A's rich peripherals include eight full-duplex serial ports (SPORTs), eight high-performance asynchronous sample rate converters (ASRC), an S/PDIF transceiver, hardware FIR/IIR/FFT accelerators, and an external SDRAM memory interface. Packaged in a 100-lead industrial-grade LQFP (14mm×14mm) with an operating temperature range of -40°C to +85°C, the ADSP-21489BSWZ-4A is an ideal processor core for demanding audio and industrial signal processing systems.

ADSP-21489BSWZ-4A Core Features

Processor Core: The ADSP-21489BSWZ-4A features a single-core 32/40-bit floating-point SHARC architecture, up to 400MHz, with SIMD engine

On-Chip Memory: The ADSP-21489BSWZ-4A provides 5Mbit of high-speed SRAM

Hardware Accelerators: The ADSP-21489BSWZ-4A includes built-in FIR, IIR, and FFT acceleration engines to significantly boost digital filtering and spectral analysis performance

ASRC: The ADSP-21489BSWZ-4A integrates an 8-channel stereo high-performance asynchronous sample rate converter, supporting up to 192kHz sampling rates

Serial Audio Ports: The ADSP-21489BSWZ-4A offers 8 full-duplex SPORTs, supporting I2S, TDM, and left/right-justified protocols

S/PDIF Transceiver: The ADSP-21489BSWZ-4A includes an integrated professional-grade digital audio transceiver

External Memory Interface: The ADSP-21489BSWZ-4A supports 16-bit SDRAM and asynchronous SRAM/Flash for large program/data requirements

General-Purpose Connectivity: The ADSP-21489BSWZ-4A provides SPI, TWI (I2C), UART, PWM, and general-purpose I/O

Package: The ADSP-21489BSWZ-4A is housed in a 100-lead LQFP (14mm×14mm), industrial temperature range -40°C to +85°C

Speed Grade: The ADSP-21489BSWZ-4A is the -4A speed grade, core clock 400MHz

ADSP-21489BSWZ-4A Applications

Professional Audio: The ADSP-21489BSWZ-4A is ideal for digital mixers, effects processors, studio monitors, amplification processing

Automotive Audio: The ADSP-21489BSWZ-4A excels in in-vehicle DSP, active noise cancellation, voice enhancement

Industrial Instrumentation: The ADSP-21489BSWZ-4A can be used for real-time control, vibration analysis, sensor signal conditioning

Medical Electronics: The ADSP-21489BSWZ-4A is suitable for biopotential signal acquisition, ultrasound digital beamforming

High-End Consumer: The ADSP-21489BSWZ-4A powers A/V receivers, soundbars, home theater processors

Test & Measurement: The ADSP-21489BSWZ-4A can be deployed in audio analyzers, dynamic signal analyzers

ADSP-21489BSWZ-4A Key Advantages

Superior Floating-Point Performance: The ADSP-21489BSWZ-4A delivers 32/40-bit floating-point processing, providing wide dynamic range and high precision while eliminating fixed-point scaling headaches

Complete Audio Acceleration Suite: The ADSP-21489BSWZ-4A combines hardware FIR/IIR/FFT accelerators and 8-channel ASRC on a single chip to handle complex audio front-end processing

Rich Audio Connectivity: The ADSP-21489BSWZ-4A's 8 SPORTs and S/PDIF transceiver natively support multi-channel I2S/TDM audio networks

Low-Latency Real-Time Processing: The ADSP-21489BSWZ-4A's SHARC architecture is optimized for signal streaming, with hardware accelerators significantly reducing processing latency

Industrial-Grade Reliability: The ADSP-21489BSWZ-4A operates reliably across the -40°C to +85°C wide temperature range, suitable for harsh environments

Mature Software Ecosystem: The ADSP-21489BSWZ-4A is fully supported by CrossCore Embedded Studio with complete audio algorithm libraries, drivers, and example code

Scalable Storage: The ADSP-21489BSWZ-4A's external SDRAM/Flash bus interface easily handles complex algorithms and multi-channel data buffering

Compact Package: The ADSP-21489BSWZ-4A comes in a 14mm×14mm LQFP, easy to layout and friendly for manual soldering during prototyping

Why Choose QIXINWEI

Years of experience in the electronics industry. Trusted by global customers.
Massive In-Stock Inventory – Ready to ship promptly.
BOM Matching Service – One-stop solution, save time.
PCBA Customization – Professional engineering team creates tailor-made solutions based on your needs.
Cost-Effective & Efficient – Better channel, better cost.
A dedicated team makes your procurement smoother.
Contact us for BOM quotes or PCBA inquiries.

FAQ

1. What is the ADSP-21489BSWZ-4A?
   The ADSP-21489BSWZ-4A is a high-performance SHARC 32/40-bit floating-point DSP from Analog Devices, running at up to 400MHz with 5Mbit on-chip SRAM, 8-channel ASRC, S/PDIF transceiver, and hardware FIR/IIR/FFT accelerators, designed for professional audio, automotive, and industrial signal processing.
2. What are the key specifications of the ADSP-21489BSWZ-4A?
   The ADSP-21489BSWZ-4A provides the following key specifications:
   • Core: Single SHARC, 400MHz
   • Memory: 5Mbit on-chip SRAM
   • Accelerators: Hardware FIR/IIR/FFT
   • ASRC: 8-channel stereo, up to 192kHz
   • Serial Ports: 8 SPORTs (I2S/TDM)
   • S/PDIF: Integrated transceiver
   • External Memory: 16-bit SDRAM / Async SRAM / Flash
   • Package: LQFP-100, 14mm×14mm
   • Temperature: -40°C to +85°C
3. What package does the ADSP-21489BSWZ-4A use?
   The ADSP-21489BSWZ-4A is housed in a 100-lead LQFP package, 14mm×14mm, 0.5mm pitch, suitable for both manual soldering and automated production.
4. What applications is the ADSP-21489BSWZ-4A suitable for?
   The ADSP-21489BSWZ-4A excels in professional audio (digital mixers, effects), automotive audio (ANC, voice enhancement), industrial instrumentation (vibration analysis, real-time control), medical electronics, and high-end consumer (AV receivers, soundbars).
5. What development tools are available for the ADSP-21489BSWZ-4A?
   For the ADSP-21489BSWZ-4A, ADI’s CrossCore Embedded Studio (CCES) or VisualDSP++ provide a complete toolchain with compiler, debugger, and optimized audio algorithm libraries.
6. What is the operating temperature range of the ADSP-21489BSWZ-4A?
   The ADSP-21489BSWZ-4A operates over the -40°C to +85°C industrial temperature range, suitable for harsh automotive and industrial environments.
7. What audio acceleration hardware is integrated in the ADSP-21489BSWZ-4A?
   The ADSP-21489BSWZ-4A features built-in FIR, IIR, and FFT hardware accelerators that significantly boost digital filtering and spectral analysis performance, reducing CPU load.
8. How can external memory be expanded for the ADSP-21489BSWZ-4A?
   The ADSP-21489BSWZ-4A supports a 16-bit SDRAM and asynchronous SRAM/Flash interface, providing flexible program and data storage expansion.
9. What are the advantages of the ADSP-21489BSWZ-4A over other SHARC DSPs?
   The ADSP-21489BSWZ-4A belongs to the 4th-generation SHARC family, integrating 8-channel ASRC and an S/PDIF transceiver with good pin compatibility, enabling single-chip audio system solutions.
10. Does the ADSP-21489BSWZ-4A support I2S and TDM audio protocols?
    Yes, all 8 SPORT ports on the ADSP-21489BSWZ-4A support standard serial audio protocols including I2S, TDM, and left/right-justified, allowing direct connection to multiple ADCs, DACs, and audio codecs.