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

ADSP-21489BSWZ-4B Product Overview

The ADSP-21489BSWZ-4B 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-4B integrates a single-core SHARC processor operating at up to 400MHz and provides 5Mbit of on-chip SRAM. Its 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-4B is an ideal processor core for demanding audio and industrial signal processing systems.

ADSP-21489BSWZ-4B Core Features

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

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

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

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

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

S/PDIF Transceiver: The ADSP-21489BSWZ-4B integrates a professional-grade digital audio transceiver

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

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

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

Speed Grade: The ADSP-21489BSWZ-4B is rated -4B, core clock 400MHz

ADSP-21489BSWZ-4B Applications

Professional Audio: The ADSP-21489BSWZ-4B excels in digital mixers, effects processors, studio monitors, amplification processing

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

Industrial Instrumentation: The ADSP-21489BSWZ-4B is suitable for real-time control, vibration analysis, sensor signal conditioning

Medical Electronics: The ADSP-21489BSWZ-4B supports biopotential signal acquisition, ultrasound digital beamforming

High-End Consumer: The ADSP-21489BSWZ-4B is used in A/V receivers, soundbars, home theater processors

Test & Measurement: The ADSP-21489BSWZ-4B is ideal for audio analyzers, dynamic signal analyzers

ADSP-21489BSWZ-4B Key Advantages

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

Complete Audio Acceleration Suite: The ADSP-21489BSWZ-4B integrates 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-4B features 8 SPORTs and an S/PDIF transceiver that natively support multi-channel I2S/TDM audio networks

Low-Latency Real-Time Processing: The ADSP-21489BSWZ-4B employs the SHARC architecture optimized for signal streaming, with hardware accelerators significantly reducing processing latency

Industrial-Grade Reliability: The ADSP-21489BSWZ-4B operates over a -40°C to +85°C wide temperature range, suitable for harsh environments

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

Scalable Storage: The ADSP-21489BSWZ-4B provides an external SDRAM/Flash bus interface that easily handles complex algorithms and multi-channel data buffering

Compact Package: The ADSP-21489BSWZ-4B features a 14mm×14mm LQFP package, 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-4B?
   The ADSP-21489BSWZ-4B 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?
   • 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 is the difference between ADSP-21489BSWZ-4B and -4A?
   Both versions offer identical 400MHz performance, memory, and peripherals. The ADSP-21489BSWZ-4B suffix typically indicates a newer silicon stepping with potential manufacturing improvements. It is fully compatible and recommended for new designs. Refer to the ADI PCN for details.
4. What package does it use?
   The ADSP-21489BSWZ-4B uses a 100-lead LQFP package, 14mm×14mm, 0.5mm pitch, suitable for both manual soldering and automated production.
5. What applications is it suitable for?
   The ADSP-21489BSWZ-4B is suitable for 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).
6. What development tools are available?
   ADI's CrossCore Embedded Studio (CCES) or VisualDSP++ provide a complete toolchain with compiler, debugger, and optimized audio algorithm libraries for the ADSP-21489BSWZ-4B.
7. What is the operating temperature range?
   The ADSP-21489BSWZ-4B operates over a -40°C to +85°C industrial temperature range, suitable for harsh automotive and industrial environments.
8. What audio acceleration hardware is integrated?
   The ADSP-21489BSWZ-4B features built-in FIR, IIR, and FFT hardware accelerators that significantly boost digital filtering and spectral analysis performance, reducing CPU load.
9. How can external memory be expanded?
   The ADSP-21489BSWZ-4B supports a 16-bit SDRAM and asynchronous SRAM/Flash interface, providing flexible program and data storage expansion.
10. Does it support I2S and TDM audio protocols?
    Yes, all 8 SPORT ports of the ADSP-21489BSWZ-4B support standard serial audio protocols including I2S, TDM, and left/right-justified, allowing direct connection to multiple ADCs, DACs, and audio codecs.