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Analog Devices Inc. ADSP-21061LKS-176
- Part No.:
- ADSP-21061LKS-176
- Manufacturer:
- Analog Devices Inc.
- Category:
- DSP (Digital Signal Processors)
- Package:
- 240-BFQFP Exposed Pad
- Datasheet:
-
ADSP-21061LKS-176.pdf
- Description:
- IC DSP CONTROLLER 1MBIT 240MQFP
- Quantity:
- Payment:
- Shipping:
Inventory:572
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Product details
Overview
ADSP-21061LKS-176 from Analog Devices is a 3.3 V, 50 MHz SHARC floating-point DSP microcomputer with dual-ported 1 Mbit SRAM, two synchronous serial ports (up to 50 Mbps each), and integrated host interface and six-channel DMA. It executes instructions in single cycles at 50 MIPS and delivers 80 MFLOPS sustained performance for real-time signal processing in communications infrastructure and medical imaging systems.
For engineers reviewing the ADSP-21061LKS-176 datasheet, ADSP-21061LKS-176 pinout, ADSP-21061LKS-176 application, or ADSP-21061LKS-176 equivalent, key selection considerations include its 3.3 V core voltage, 240-lead MQFP thermally enhanced package, IEEE 754 32-bit/40-bit floating-point support, dual-DAG hardware circular buffering, and glueless multiprocessing capability for up to six nodes.
Technical Context
The ADSP-21061LKS-176 implements the Super Harvard Architecture with four independent buses enabling simultaneous instruction fetch, dual data fetch, and nonintrusive I/O. Its computation units-ALU, multiplier, and shifter-execute parallel single-cycle operations supporting IEEE 32-bit single-precision, 40-bit extended-precision, and 32-bit fixed-point formats.
It features dual data address generators (DAG1/DAG2) with hardware modulo and bit-reverse addressing for efficient circular buffer management, and an on-chip instruction cache that enables three-bus operation without stalling during looped FFT or FIR execution. The processor supports zero-overhead looping and JTAG 1149.1 test access for emulation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Clock Speed | 50 MHz - enables 20 ns instruction cycle time and full-speed serial port operation at 50 Mbps per channel |
| Processing Performance | 50 MIPS / 80 MFLOPS sustained - guarantees deterministic real-time execution of complex filter banks and spectral analysis |
| On-Chip Memory | 1 Mbit dual-ported SRAM (two 512 kbit blocks) - allows concurrent core + DMA or I/O processor access with no bus contention |
| Voltage Supply | 3.3 V core (ADSP-21061L variant) - reduces power dissipation vs. 5 V ADSP-21061 while maintaining pin compatibility |
| Serial Interfaces | 2 × synchronous serial ports - support TDM multichannel mode, μ-law/A-law companding, and DMA-automated transfers |
| Multiprocessing Support | Glueless 6-node shared-memory topology - uses distributed arbitration logic and broadcast writes without external logic |
| DMA Channels | 6 total (4 via serial ports, 2 via external port) - enables zero-overhead offloading of host, memory, and peripheral data movement |
Pinout & Package
ADSP-21061LKS-176 is housed in a 240-lead thermally enhanced MQFP (Metric Quad Flat Package) with 0.5 mm lead pitch and exposed thermal pad. This package supports high-density PCB layouts while enabling effective heat dissipation for sustained 50 MHz operation in embedded signal processing modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| ADDR31–0 | Address Bus (I/O/T) | Provides 32-bit unified address space access to external memory/peripherals and interprocessor memory in multiprocessor systems |
| DATA47–0 | Data Bus (I/O/T) | 48-bit bidirectional data path supporting 32-bit floating-point (bits 47–16), 40-bit extended-precision (bits 47–8), and 16-bit data transfers |
| CLKIN | Master Clock Input | Accepts 50 MHz external clock driving all internal timing domains including serial port clocks and DMA timing |
| HBR/HBG/REDY | Host Bus Interface Control | Enables asynchronous host processor access to internal memory and registers with full-clock-rate transfers and vector interrupt support |
| DR0/DT0, DR1/DT1 | Serial Port Data I/O | Independent receive/transmit lines for two full-duplex serial channels supporting TDM, programmable word length (3–32 bits), and big/little-endian formats |
| TMS/TDI/TDO/TCK/TRST | JTAG Test Access Port | IEEE 1149.1-compliant interface for boundary scan, in-circuit emulation, and debug without halting real-time operation |
Key Features
| Feature | Design Value |
|---|---|
| Dual-ported SRAM architecture | Two independent 512 kbit memory blocks allow simultaneous core instruction fetch + DMA data transfer without arbitration delay |
| Hardware circular buffering | Dual DAGs support up to 32 independent circular buffers with automatic wraparound-eliminates software pointer management overhead in FIR/FFT kernels |
| Zero-overhead looping | Single-cycle loop setup enables tight inner loops (e.g., multiply-accumulate) to execute without pipeline stalls or branch penalties |
| Glueless multiprocessing | On-chip bus arbitration and ID-based memory mapping enable 6-node shared-memory systems without external priority encoders or glue logic |
| Flexible data format support | Native 32-bit IEEE 754, 40-bit extended-precision, and 32-bit fixed-point arithmetic with single-instruction conversion between formats |
Applications
| Communications Baseband Processing | Medical Ultrasound Beamforming |
|---|---|
Use Scenario: Real-time modulation/demodulation and channel equalization in cellular base stations and microwave backhaul equipment. IC Role / Device Role / Timing Role: Primary floating-point compute engine executing adaptive filtering, FFTs, and digital up/down-conversion algorithms. Use Value: 80 MFLOPS sustained throughput ensures sub-millisecond latency for LTE/5G PHY layer processing with deterministic jitter-free timing. | Use Scenario: Dynamic beam steering and RF echo signal processing in portable and cart-based ultrasound systems. IC Role / Device Role / Timing Role: Real-time FIR filter bank and phase-aligned delay line controller synchronizing hundreds of transducer elements. Use Value: Dual-DAG hardware circular buffers reduce CPU load by >90% versus software-managed buffers, enabling 15+ fps B-mode imaging at full resolution. |
| Professional Audio Effects Engine | Radar Signal Processing Module |
Use Scenario: Low-latency multi-channel reverb, convolution, and harmonic synthesis in digital mixing consoles and studio processors. IC Role / Device Role / Timing Role: Dedicated audio DSP handling sample-accurate IIR/FIR filtering, fast convolution, and nonlinear distortion modeling. Use Value: 48-bit instruction word enables parallel multiply-add-subtract-branch in one cycle, achieving <50 μs end-to-end audio path latency. | Use Scenario: Pulse-Doppler processing and CFAR detection in airborne SAR and ground-based surveillance radar systems. IC Role / Device Role / Timing Role: High-throughput FFT engine and matched filter accelerator performing range-Doppler map generation in real time. Use Value: Dual-ported SRAM permits simultaneous radar data ingestion (DMA) and FFT computation (core), sustaining 300 MBps memory bandwidth. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar floating-point DSP applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADSP-21062LKSZ-176 | Same 3.3 V, 50 MHz SHARC core but includes link port interface and 16-column memory banks (vs. 8-column on ADSP-21061LKS-176) | Required for systems needing high-speed chip-to-chip interconnect; not suitable where link port pins conflict with board layout | Select only if link port functionality is mandatory; otherwise ADSP-21061LKS-176 offers identical compute and lower pin count |
| TMS320C6713BZDP300 | TI C67x VLIW DSP at 300 MHz; fixed/floating-point; lacks dual-ported SRAM and native multiprocessing arbitration | Suitable for high-MIPS scalar workloads but requires external logic for multiprocessor coherence and adds latency for memory-bound FFTs | Choose when migrating legacy C67x code; avoid if glueless multiprocessing or low-latency SRAM access is critical |
Compared with ADSP-21062LKSZ-176, ADSP-21061LKS-176 removes link port pins to simplify routing and reduce cost while retaining identical floating-point performance and multiprocessing capability. Against TMS320C6713BZDP300, ADSP-21061LKS-176 provides deterministic latency via dual-ported SRAM and on-chip arbitration-critical for real-time beamforming and radar pulse processing.
Availability
ADSP-21061LKS-176 is available at Aetrix Electronics and suitable for communications infrastructure, medical imaging, professional audio, and defense radar applications requiring stable component supply across long product lifecycles.
Supply support for ADSP-21061LKS-176 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Analog Devices, Inc. is a global semiconductor company specializing in high-performance analog, mixed-signal, and digital signal processing technologies for precision instrumentation, industrial automation, and communications.
The ADSP-21061LKS-176 belongs to the SHARC family of floating-point DSPs designed specifically for computationally intensive, real-time signal processing tasks where deterministic latency, high memory bandwidth, and multiprocessing scalability are essential.
FAQ
What is the operating voltage specification for the ADSP-21061LKS-176?
The ADSP-21061LKS-176 operates at a nominal 3.3 V core supply voltage, distinguishing it from the 5 V ADSP-21061 variant. This lower voltage reduces internal power dissipation while maintaining full 50 MHz operation and pin compatibility with other ADSP-21061L models. The device also supports 3.3 V I/O signaling levels, eliminating level-shifting requirements in modern low-voltage system designs.
Does the ADSP-21061LKS-176 support IEEE 754 floating-point arithmetic?
Yes, the ADSP-21061LKS-176 natively supports IEEE 754 32-bit single-precision floating-point arithmetic and extends this with 40-bit extended-precision format for improved numerical stability in iterative algorithms. Its ALU, multiplier, and shifter execute all floating-point operations in single cycles, delivering 80 MFLOPS sustained performance-critical for maintaining accuracy in medical imaging reconstruction and radar Doppler processing.
How many serial ports does the ADSP-21061LKS-176 include, and what are their capabilities?
The ADSP-21061LKS-176 integrates two fully independent synchronous serial ports (SPORT0 and SPORT1), each supporting full-duplex operation at up to 50 Mbps. Each port offers TDM multichannel mode, programmable word length (3–32 bits), selectable synchronization modes, μ-law/A-law companding, and keyword/key mask features for interprocessor messaging. Serial data transfers can be fully automated via dedicated DMA channels.
Is the ADSP-21061LKS-176 pin-compatible with other SHARC processors?
Yes, the ADSP-21061LKS-176 is pin-compatible with the ADSP-21060 and ADSP-21062 in the same 240-lead MQFP package. However, link port pins present on those devices are designated as no-connects on the ADSP-21061LKS-176. Memory organization differs (8-column vs. 16-column banks), and certain DMA and SPORT features-including 2-D DMA-are not implemented on the ADSP-21061LKS-176.
What development tools are supported for the ADSP-21061LKS-176?
Analog Devices officially supports the ADSP-21061LKS-176 with VisualDSP++ and CrossCore Embedded Studio IDEs, both offering C/C++ compilation, JTAG-based debugging, and real-time profiling. Hardware tools include EZ-KIT Lite evaluation boards, EZ-Extender daughter cards for audio/video I/O, and ICE-100B/ICE-200 emulators leveraging the on-chip JTAG 1149.1 interface for non-intrusive in-circuit emulation.
ADSP-21061LKS-176 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- SHARC®
- Package/Case:
- 240-BFQFP Exposed Pad
- Packaging:
- Bag
- Product Status:
- Obsolete
- Type:
- Floating Point
- Interface:
- Synchronous Serial Port (SSP)
- Clock Rate:
- 44MHz
- Non-Volatile Memory:
- External
- On-Chip RAM:
- 128kB
- Voltage - I/O:
- 3.30V
- Voltage - Core:
- 3.30V
- Operating Temperature:
- 0°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 240-MQFP-EP (32x32)
ADSP-21061LKS-176 FAQ
1.How can I place an order for ADSP-21061LKS-176 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADSP-21061LKS-176 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for ADSP-21061LKS-176 reliable?
The price and inventory of ADSP-21061LKS-176 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADSP-21061LKS-176 is usually 5 days.
3.What payment methods are accepted for ADSP-21061LKS-176?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADSP-21061LKS-176 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADSP-21061LKS-176?
ADSP-21061LKS-176 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADSP-21061LKS-176 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for ADSP-21061LKS-176?
For technical support, including ADSP-21061LKS-176 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADSP-21061LKS-176 requirements.
6.How does Aetrix verify that ADSP-21061LKS-176 is sourced from the original manufacturer or authorized distributors?
All ADSP-21061LKS-176 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that ADSP-21061LKS-176 meets industry standards.
7.What is the process for return or replacement of ADSP-21061LKS-176?
All ADSP-21061LKS-176 units undergo pre-shipment inspection (PSI). If there is an issue with ADSP-21061LKS-176, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The ADSP-21061LKS-176 part is unused and in its original packaging.
Return procedure for ADSP-21061LKS-176:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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