High Performance Fourth Generation DSP

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Product Details

The fourth generation of SHARC® Processors, now includes the ADSP-21486, ADSP-21487, ADSP-21489 and offers increased performance, hardware-based filter accelerators, audio and application-focused peripherals, and new memory configurations capable of supporting the latest surround-sound decoder algorithms. All devices are pin-compatible with each other and completely code-compatible with all prior SHARC Processors. These newest members of the fourth generation SHARC Processor family are based on a single-instruction, multiple-data (SIMD) core, which supports both 32-bit fixed-point and 32-/40-bit floating-point arithmetic formats making them particularly suitable for high-performance audio applications.

The ADSP-21487 offers the highest performance – 450 MHz / 2700 MFLOPs – in an LQFP package within the fourth generation SHARC Processor family. This level of performance makes the ADSP-21487 particularly well suited to address the consumer audio segment. In addition to its high core performance, the ADSP-21487 includes additional processing blocks such as FIR, IIR, and FFT accelerators to increase the total performance of the system. There is a new feature called Variable Instruction Set Architecture (VISA) that allows the code size to be decreased by 20% to 30% and increase the memory size availability. The fourth generation DSP allows the ability to connect to external memory by providing a glueless interface to 16-bit wide SDR SDRAMs.

Fourth-generation SHARC Processors also integrate application-specific peripherals designed to simplify hardware design, minimize design risks, and ultimately reduce time to market. Grouped together, and broadly named the Digital Applications Interface (DAI), these functional blocks may be connected to each other or to external pins via the software-programmable Signal Routing Unit (SRU). The SRU is an innovative architectural feature that enables complete and flexible routing amongst DAI blocks. Peripherals connected through the SRU include but are not limited to serial ports, IDP, S/PDIF Tx/Rx, and an 8-Channel asynchronous sample rate converter block. The fourth generation SHARC allows data from the serial ports to be directly transferred to external memory by the DMA controller. Other peripherals such as SPI, UART and Two-Wire Interface are routed through a Digital Peripheral Interface (DPI).

Product Lifecycle

checked Recommended for New Designs

This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.

Evaluation Kits


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EVAL-MELODY-5 Circuit Diagram

Product Details

The EVAL-MELODY-5 is a comprehensive, integrated DSP and HDMI™ based development platform to facilitate the design and development of AVRs, soundbars, multichannel gaming headphones and powered speakers. The hardware incorporates latest DSP and HDMI products and is supported by CrossCore® Eclipse-based tools and the user friendly GUI-based SigmaStudio™ for SHARC®. The development board is an optimized hardware design that utilizes two fourth generation SHARC processor, the ADSP-21489, running at 400MHz and the new 4K resolution UHD capable crosspoint transceiver.

All control and housekeeping functions on the EVAL-MELODY-5 platform are efficiently performed by a Blackfin® BF524 processor.

Dolby Atmos® and DTS:X decoders have been implemented and are certified by Dolby and DTS respectively at the IC level to reduce uncertainty regarding product certification. The UHD capabilities of the ADV7625 crosspoint transceiver support a 4K video pass through and allow HDMI embedded audio to be extracted, processed and either reinserted or rendered locally.

The hardware design allows cascading multiple SHARC processors to facilitate the development of systems that require more than two DSPs. The two DSPs execute Dolby Atmos and DTS:X decoders and the board may be interfaced to additional DSP processors for executing post processing routines. The ADV7625 HDMI Transceiver passes through video while extracting the embedded audio for processing by the DSPs and then optionally re-inserting the audio into the HDMI output stream.

Based on ADI’s award-winning SigmaStudio for SigmaDSP® digital signal processor tool, the SigmaStudio for SHARC tool is a programming, development and real-time tuning software environment that enables developers to graphically design and program audio applications for SHARC processors using an extensive, optimized library of more than 100 pre-built audio algorithms such as filtering, mixing, and dynamics processing, as well as basic low-level DSP functions and control blocks. SigmaStudio runs on a PC connected to the EVAL-MELODY-5 platform and helps software and audio engineers shorten their design times.  SigmaStudio is unique in that it has proven to be friendly to audio designers while also meeting the needs of software engineers. It is easy to create software schematics by dragging the required modules from a library of about 100 different modules that are available. The CrossCore® Eclipse-based tools provide an easy development environment and are in used in conjunction with the SigmaStudio for SHARC.

  • AVRs
  • Soundbars
  • Powered speakers
  •  Multi-channel gaming headphones
  •  Professional Audio


EMULATOR-ADSP Circuit Diagram

Product Details

The Analog Devices ICE-1000 and ICE-2000 emulators facilitate the creation, test, and debug of advanced applications on Analog Devices Processors and DSPs. Working in tandem with the CrossCore® Embedded Studio development environment, these emulators provide state-of-the-art support for all JTAG-compliant Analog Devices processors.

New debug features added for the ICE-1000/ICE-2000:

  • Program trace*
  • System trace*
  • Cross trigger channel control*
  • Coresight Serial Wire Debug(SWD) support*

*Not available in all CCES versions



Product Details

Analog Devices’ cost-effective Universal Serial Bus (USB)-based emulator and High performance (HP) Universal Serial Bus (USB)-based emulator each provide an easy, portable, non-intrusive, target-based debugging solution for Analog Devices JTAG processors and DSPs. These powerful USB-based emulators perform a wide range of emulation functions, including single-step and full speed execution with pre-defined breakpoints, and viewing and/or altering of register and memory contents. With the ability to automatically detect and support multiple I/O voltages, the USB and HP USB emulators enable users to communicate with all of the Analog Devices JTAG processors and DSPs using either a full speed USB 1.1 or high speed USB 2.0 port on the host PC. Applications and data can easily and rapidly be tested and transferred between the emulators and the separately available VisualDSP++ development and debugging environment(sold separately).

The plug-and-play architecture of USB allows the emulators to be automatically detected and configured by the host operating system. It can also be connected to and disconnected from the host without opening the PC or turning off the power to the PC. A 3-meter cable is included to connect the emulators to the host PC, thus providing abundant accessibility to hard to reach targets.

The HP USB-based emulator also supports the Background Telemetry Channel (BTC), a non-intrusive method for exchanging data between the host and target application without affecting the target system's real-time characteristics.

Part Number:
USB-Based Emulator
Part Number: ADZS-USB-ICE
High Performance USB-Based Emulator

Tools Support:
Tel: 1-800-ANALOGD (262-5643)
Contact Support

For additional information, contact your local Analog Devices Sales Office or Distributor.



Product Details

The Blackfin SHARC USB EZ-Extender plugs onto the expansion interface of the ADSP-BF518F and ADSP-21469 EZ-Board and EZ-KIT Lite’s. The EZ-Extender aids the design and prototyping phases of the processor targeted applications and extends the capabilities of the evaluation system by providing a connection between the asynchronous memory bus of the Blackfin/SHARC processor and a USB 2.0 device.

Ordering Information:

CROSSCORE® Tools Support:
Tel: 1-800-ANALOGD (262-5643)
Contact Support


EVAL-21489-EZLITE Circuit Diagram

Product Details

The ADSP-21489 EZ-KIT Lite® provides developers with a cost-effective method for initial evaluation of the ADSP-21483/21486/21487/21489 SHARCs® Processors via a USB-based, PC-hosted tool set. With this EZ-KIT Lite, users can learn more about the Analog Devices (ADI) ADSP-21489 hardware and software development, and quickly prototype a wide range of applications.

The EZ-KIT Lite includes an ADSP-21489 SHARC Processor desktop evaluation board along with an evaluation suite of the VisualDSP++® development and debugging environment, including the C/C++ compiler, assembler, and linker. The evaluation suite of VisualDSP++ is designed to be used with the EZ-KIT Lite only.

The EZ-KIT Lite also comes with a standalone debug agent board that is removable to allow a user to plug-in an external emulator.

Ordering Information:
Part number: ADZS-21489-EZLITE

CROSSCORE® Tools Support:
Tel: 1-800-ANALOGD (262-5643)
Contact Support


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Software & Systems Requirements



Software Development Tools

Design Resources

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ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well.  "Zero defects" for shipped products is always our goal.

ADSP-21487 Material Declaration
PCN-PDN Information Quality And Reliability Symbols and Footprints

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The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.

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Evaluation Boards Pricing displayed is based on 1-piece.
Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.