ADSP-21161NCCA-100

Digital Signal Processor Dsp Overview

The ADSP-21161NCCA-100 is a 32-bit SHARC digital signal processor from Analog Devices, operating at a 100 MHz instruction rate. It features a Super Harvard architecture with four independent buses for simultaneous instruction and data fetching. The core includes two SIMD computational units (PEX and PEY), each containing an ALU, multiplier, shifter, and register file, delivering up to 440 MFLOPs sustained performance. Key peripherals include 1 Mbit dual-ported on-chip SRAM, an integrated I/O processor, SDRAM controller, four serial ports, two link ports, SPI interface, and a host port. It supports 32-bit fixed, 32-bit float, and 40-bit floating-point formats in a 225-ball CSP_BGA package.

Digital Signal Processor Dsp Feature Summary

• SIMD Architecture: Two parallel processing elements (PEX/PEY) enable double cycle performance for math-intensive algorithms.
• Integrated Memory: 1 Mbit dual-ported on-chip SRAM allows single-cycle independent access by core and I/O processors.
• Multiprocessing Support: Glueless multiprocessing via external port and two link ports supports systems of up to six processors.
• High-Speed Interfaces: Includes four serial ports with I2S support, two link ports, SPI, and a host processor interface.

Digital Signal Processor Dsp Applications

• Audio processing and telephony
• Medical imaging and instrumentation
• Wireless communications basebands
• Motor control systems
• Military signal processing

Digital Signal Processor Dsp Procurement Notes

Verify the specific ordering suffix 'CCA' against the manufacturer's current datasheet to confirm pinout and package dimensions, as suffixes may indicate variations in temperature range or packaging type. Ensure compatibility with existing board layouts regarding the 225-ball CSP_BGA footprint. Check for RoHS compliance status if required for your manufacturing process.

Digital Signal Processor Dsp Selection Notes

Select this component when source code compatibility with first-generation ADSP-2106x SHARC processors in SISD mode is required. Choose the 100 MHz variant over the 110 MHz version if lower power consumption or thermal management is a priority. Ensure the application benefits from the SIMD architecture's ability to execute two operations per cycle compared to single-unit predecessors.

Digital Signal Processor Dsp Part Context

The ADSP-21161N is a low-cost derivative of the ADSP-21160 within the SHARC family. It maintains assembly-level code compatibility with the ADSP-21160, ADSP-21060, ADSP-21061, ADSP-21062, and ADSP-21065L. This lineage ensures that existing software libraries and applications can be ported with minimal modification, leveraging the enhanced SIMD capabilities of the 2116x core.

Digital Signal Processor Dsp Replacement Considerations

Direct functional replacements within the same package and pinout are limited due to the specific 'CCA' suffix. Consider the ADSP-21160 series for higher performance or other ADSP-2116x variants if pin compatibility is not strictly required. Verify that any substitute supports the required 100 MHz clock speed and 1 Mbit SRAM configuration.