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- 150MHz (6.67 ns) SIMD SHARC Core, capable of 900MFLOPS peak performance
- Code compatible with all SHARC Processors
- Supports IEEE-compatible 32-bit floating-point, 40-bit floating-point and 32-bit fixed-point data types
- 1Mbit on-chip dual-ported SRAM; 3Mbits mask-programmable ROM
- 4 independent Serial Ports - Supports: Standard DSP Serial mode, I2S mode, Left Justified Sample pair mode and TDM mode
- 18 Zero-overhead DMA channels
- SPI compatible interface and a 16-bit Parallel Port
- Digital Audio Interface (DAI)
- Software configurable PLL providing many multiplier ratios
- Four timers: 1 core and 3 general purpose timers
- 136-ball BGA (12mm × 12mm) and 144-lead LQFP (20mm × 20mm) packages available in Commercial and Industrial temp ranges
The ADSP-21261 is the lowest cost member of the third-generation of SHARC® programmable digital signal processors. A range of cost-sensitive applications such as voice recognition, medical appliances, measurement devices, high-quality audio, and automotive entertainment systems will benefit from the ADSP-21261’s integration of large on-chip memory and diverse set of peripherals.
The ADSP-21261 is well suited for use in cost sensitive, signal processing applications.
The ADSP-21261 is based on the SHARC (SIMD) core that supports execution of 32-bit fixed-point and 32/40-bit floating-point arithmetic formats. With its core running at 150MHz (6.67 ns instruction cycle time), the ADSP-21261 is capable of executing complex Fast Fourier Transform (FFT) operations—1024-point complex FFT in 61us. The processor’s single-instruction, multiple data (SIMD) mode effectively doubles the processor performance.
The ADSP-21261 offers a high level of integration, including 1 Mbit of on-chip dual-ported SRAM and 3Mbits of mask programmable ROM memory. This large on-chip dual-ported memory enables sustained processor and I/O performance without the need for external memory. System I/O is achieved through four full-duplex serial ports, four timers, a 16-bit parallel port, a serial peripheral interface (SPI), 18 zero-overhead Direct Memory Access (DMA) channels delivering fast data transfers without processor intervention and an innovative Digital Audio Interface (DAI) which provides the user complete software control through its Signal Routing Unit (SRU).
Digital Audio Interface (DAI) for Simplified I/O System Development
The ADSP-21261 utilizes the Digital Audio Interface (DAI), an architecture that enables complete software programmability of various on-chip peripherals. The flexibility and ease-of-use of the SHARC programming model, combined with the DAI, allow manufacturers to deploy one hardware configuration into multiple product offerings with different I/O requirements.
Connections are made using the flexible Signal Routing Unit (SRU), a matrix routing group of pins that provides configurable and flexible connectivity between all DAI components and the SRU. The peripherals connected through the DAI are: a precision clock generator (PCG), an input data port (IDP), four SPORTS (serial ports), six flag inputs, six flag outputs, three timers and the SRU. The IDP provides an additional input path to the DSP core, configurable as 8 channels of receive serial data or as 7 channels of receive serial data and a single channel of up to a 20-bit wide parallel data. This level of integration enables the designer to take full advantage of a wide variety of peripherals without sacrificing the overall system performance.
CROSSCORE Development Tools
All 3rd Generation SHARC Processors are supported by ADI’s CROSSCORE brand of award winning development tools. The CROSSCORE components include the VisualDSP++™ software development environment, EZ-KIT Lite™ evaluation systems, and emulators.
VisualDSP++ is an integrated software development environment, allowing for fast and easy development, debug, and deployment. The EZ-KIT Lite evaluation system provides an easy way to investigate the power of the ADI family of processors and begin to develop applications. Emulators are available for PCI and USB host platforms for rapid on-chip debugging. Additional development tools and algorithms are available from an extensive third-party development community.
Note: The functional block diagram is available in the data sheet.
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ADSP-21261
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Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
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ADSP-21261SKBCZ150 | 136-Ball CSPBGA (12mm x 12mm) |
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ADSP-21261SKSTZ150 | 144-Lead LQFP (20mm x 20mm) |
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PCN
Jun 18, 2010
- 07_0093
Conversion to Laser Mark for all ADSPXXXX, ADSSTXXXX, and PC Audio Codecs Ink on Plastic Encapsulated Parts
ADSP-21261SKBCZ150
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ADSP-21261SKSTZ150
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Oct 18, 2016
- 16_0034
Assembly Relocation of Select LQFP,LQFP_EP,MQFP,TQFP,TQFP_EP Products to Stats ChipPAC China Jiangyin
Jan 5, 2009
- 07_0077
Certification of STATSChipPAC Shanghai, China and AMKOR Philippines as additional sources for Assembly & Test of QFP Packages
Filter by Model
Part Models
Product Lifecycle
PCN
Jun 18, 2010
- 07_0093
Conversion to Laser Mark for all ADSPXXXX, ADSSTXXXX, and PC Audio Codecs Ink on Plastic Encapsulated Parts
Oct 18, 2016
- 16_0034
Assembly Relocation of Select LQFP,LQFP_EP,MQFP,TQFP,TQFP_EP Products to Stats ChipPAC China Jiangyin
Jan 5, 2009
- 07_0077
Certification of STATSChipPAC Shanghai, China and AMKOR Philippines as additional sources for Assembly & Test of QFP Packages
Software & Part Ecosystem
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Software Development Tools
SigmaStudio®
Looking for Evaluation Software? You can find it here
Evaluation Kits 4
EVAL-21262-EZEXT
SHARC EZ-Extender for Analog Devices ADSP-21262 EZ-KIT Lite
Product Detail
Applications and information about the use and connection of the various interfaces on the SHARC EZ-Extender are available from Analog Devices.
Part Number
ADZS-21262-1-EZEXT
Tools Support:
Tel: 1-800-ANALOGD (262-5643)
Contact Support
For additional information, contact your local Analog Devices Sales Office or Distributor.
Resources
EVAL-21262-EZLITE
The ADSP-21262 EZ-Kit Lite evaluation hardware provides a low-cost hardware solution for evaluating the ADSP-2126x SHARC processor family.
Product Detail
The EZ-KIT Lite includes an ADSP-21262 Processor desktop evaluation board along with an evaluation suite of the VisualDSP++ development and debugging environment with the C/C++ compiler, assembler, and linker. VisualDSP++ development and debugging software, along with the USB-based debugger interface, enables users to perform standard debugging functions (such as read and write memory, read and write registers, load and execute executables, set and clear breakpoints, and single-step assembly, C, and C++ source code).
Part Number:
ADZS-21262-EZLITE
Tools Support:
Tel: 1-800-ANALOGD (262-5643)
Contact Support
Resources
EVAL-BFSHUSB-EZEXT
The USB extender board is a low-cost, plug-on extender for EZ-Boards. This extender extends the capabilities of the evaluation system by providing a connection between the asynchronous memory bus of the Blackfin or SHARC processor and a USB 2.0 device. For information about compatible EZ-Board products, see the processors family's Software and Tools page.
Product Detail
Ordering Information:
Part number: ADZS-BFSHUSB-EZEXT
CROSSCORE® Tools Support:
Tel: 1-800-ANALOGD (262-5643)
Contact Support
Resources
EVAL-SHAUDIO-EZEXT
The SHARC Audio extender board is a low-cost, plug-on extender for EZ-Boards. This extender extends the capabilities of the SHARC evaluation system by providing three AD1939 audio codecs and providing 24 channels of analog audio out, 12 channels of analog audio in. For information about compatible EZ-Board products, see the processors family's Software and Tools page.
Product Detail
The SHARC Audio EZ-Extender provides users the ability to evaluate audio application on the ADSP-214xx EZ-Board/ EZ-KIT Lite. Software examples are provided in the latest update of VisualDSP++.
The EZ-Extender consists of three Analog Devices AD1939 audio codecs and provides 24 channels of analog audio out, 12 channels of analog audio in. The primary codec operates in both in I2S and TDM mode and can run at sample rates of 48, 96, or 192 KHz. The other two codec are configured to operate in Dual Line TDM mode. The three codecs together can operate in dual line TDM mode for 24 analog channels out and 12 analog channels in at a sample rate of 192KHz.
The audio input and output is available via multiple RCA connectors. A group of switches are available if a user should decide to evaluate the audio codec inputs and outputs in a differential mode. (NOTE: DB25 to XLR cables are not supplied with the EZ-Extender).
Ordering Information:
Part number: ADZS-SHAUDIO-EZEXT
CROSSCORE® Tools Support:
Tel: 1-800-ANALOGD (262-5643)
Contact Support
Resources