ADSP-21261
PRODUCTION3rd Generation, Low-Cost, 150 MHz SHARC Processor
- Part Models
- 2
- 1ku List Price
- price unavailable
Part Details
- 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.
Documentation
Data Sheet 1
User Guide 4
Application Note 43
Processor Manual 3
Product Highlight 1
Software Manual 11
Emulator Manual 3
Integrated Circuit Anomaly 1
Legacy Emulator Manual 1
Legacy Evaluation Kit Manual 2
Product Highlight 1
Product Selection Guide 1
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. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| ADSP-21261SKBCZ150 | 136-Ball CSPBGA (12mm x 12mm) | ||
| ADSP-21261SKSTZ150 | 144-Lead LQFP (20mm x 20mm) |
| 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 |
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| ADSP-21261SKBCZ150 | PRODUCTION | |
| ADSP-21261SKSTZ150 | PRODUCTION | |
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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 |
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| ADSP-21261SKSTZ150 | PRODUCTION | |
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Jan 5, 2009 - 07_0077 Certification of STATSChipPAC Shanghai, China and AMKOR Philippines as additional sources for Assembly & Test of QFP Packages |
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| ADSP-21261SKSTZ150 | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
Software & Tools Anomaly 1
SigmaStudio®
Graphical development tool for programming, development, and tuning software for ADI DSP audio processors and A2B® transceivers.
View DetailsEvaluation Software 0
Tools & Simulations
SHARC Processors Software and Tools
Open Tool
BSDL Model File 3
Evaluation Kits
SHARC EZ-Extender for Analog Devices ADSP-21262 EZ-KIT Lite
Resources
The ADSP-21262 EZ-Kit Lite evaluation hardware provides a low-cost hardware solution for evaluating the ADSP-2126x SHARC processor family.
Resources
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.
Resources
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.