Analog Devices Inc. ADSP-21061KS-200

Overview

ADSP-21061KS-200 from Analog Devices is a 50 MHz, 50 MIPS SHARC® floating-point DSP microcomputer with dual-ported 1 Mbit on-chip SRAM, IEEE 32-bit/40-bit floating-point computation units, and integrated I/O peripherals including two synchronous serial ports, host interface, DMA controller, and JTAG emulation port. It serves as a system-on-a-chip for real-time signal processing in communications infrastructure and digital audio systems.

For engineers reviewing the ADSP-21061KS-200 datasheet, ADSP-21061KS-200 pinout, ADSP-21061KS-200 application, or ADSP-21061KS-200 equivalent, key selection criteria include instruction cycle time (20 ns), sustained 80 MFLOPS performance, dual-data-address-generator support for circular buffers, and 225-ball PBGA package compatibility with multiprocessor interconnect requirements.

Technical Context

The ADSP-21061KS-200 implements the Super Harvard Architecture with four independent buses enabling simultaneous instruction fetch, dual data fetch, and nonintrusive I/O-achieving single-cycle execution of all instructions via on-chip instruction cache. Its dual DAGs support hardware-managed circular buffers for FFT and FIR filtering, while the 10-port register file enables parallel ALU/multiplier/shifter operations.

Memory subsystem includes two 512-kbit dual-ported SRAM blocks supporting concurrent core and DMA/IOP access, configurable for 32k × 32-bit data, 64k × 16-bit data, or 16k × 48-bit instructions. The external port provides unified 4-gigaword address space with programmable wait states and bank-select decoding for glueless DRAM interfacing.

Key Specifications

Pinout & Package

ADSP-21061KS-200 is housed in a 225-ball plastic ball grid array (PBGA) package with 1.27 mm pitch, thermally enhanced for high-power DSP operation. Pin functions are defined per Analog Devices Rev. D datasheet, with dedicated buses for program memory (PM), data memory (DM), I/O processor (IOP), host interface, and multiprocessor arbitration.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-performance floating-point DSP applications.

Compared with ADSP-21062KS-200, ADSP-21061KS-200 removes unused link port pins to reduce complexity and cost while retaining identical floating-point performance and dual-ported SRAM architecture; compared with ADSP-21161NKSZ-200, it avoids migration to 1.2 V core logic and new package footprint, preserving design continuity for industrial and telecom equipment with long lifecycle requirements.

Availability

ADSP-21061KS-200 is available at Aetrix Electronics and suitable for telecom infrastructure, professional audio equipment, and radar signal processing systems requiring stable component supply and long-term obsolescence management.

Supply support for ADSP-21061KS-200 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, communications, and industrial applications.

The ADSP-21061KS-200 belongs to the SHARC® family of 32-bit floating-point DSPs designed specifically for computationally intensive, real-time signal processing tasks where deterministic latency and high dynamic range are critical.

FAQ

What is the maximum sustained floating-point performance of the ADSP-21061KS-200?

The ADSP-21061KS-200 delivers 80 MFLOPS sustained performance under real-world workloads such as FIR filtering and FFT processing. This figure reflects measured throughput using the on-chip dual-ported SRAM and optimized compiler-generated code-not theoretical peak. The ADSP-21061KS-200 achieves this via its 50 MHz clock, single-cycle instruction execution, and parallel ALU/multiplier/shifter units operating on IEEE 32-bit and 40-bit floating-point data formats.

Does the ADSP-21061KS-200 support 3.3 V operation?

No, the ADSP-21061KS-200 is a 5 V device specified for commercial-grade operation at 5 V ±5%. It is not compatible with 3.3 V supplies. The 3.3 V variant is the ADSP-21061L series (e.g., ADSP-21061LKS-160), which uses different speed grades and has distinct electrical characteristics. Using 3.3 V on ADSP-21061KS-200 will result in functional failure and potential damage.

How many serial ports does the ADSP-21061KS-200 include, and what are their data rates?

The ADSP-21061KS-200 integrates two fully independent synchronous serial ports (SPORT0 and SPORT1), each capable of full-duplex operation at up to 50 Mbps. Each port supports TDM multichannel mode, selectable word length (3–32 bits), μ-law/A-law companding, and keyword/key mask features. Data transfer between serial ports and on-chip memory is handled automatically via dedicated DMA channels.

Is the ADSP-21061KS-200 pin-compatible with other SHARC processors?

Yes, the ADSP-21061KS-200 is pin-compatible with the ADSP-21060 and ADSP-21062 in the same 225-ball PBGA package. However, link port pins present on the ADSP-21060/21062 are designated as no-connects on the ADSP-21061KS-200. Memory organization differs (8 vs. 16 columns per bank), and certain DMA and SPORT features are omitted - requiring minor code adjustments during migration.

What development tools are supported for the ADSP-21061KS-200?

The ADSP-21061KS-200 is supported by VisualDSP++® (legacy IDE) and CrossCore® Embedded Studio (current IDE). Both provide C/C++ compilation, JTAG-based debugging, and real-time kernel support. Hardware tools include EZ-KIT Lite evaluation boards, ICE-100B/ICE-200 emulators, and EZ-Extender daughter cards for audio/video I/O. BSPs and algorithmic modules for SHARC are available directly from Analog Devices.