ADSP-2189NKSTZ-320

Digital Signal Processor Dsp Overview

The ADSP-2189NKSTZ-320 is a fixed-point digital signal processor from the Analog Devices ADSP-218xN series, fabricated in a 0.18 μm CMOS process. It features a 12.5 ns instruction cycle time at 1.8 V core voltage, delivering 80 MIPS sustained performance with single-cycle execution. The device integrates up to 256K bytes of on-chip SRAM, configured as 32K words (24-bit) of program memory and 48K words (16-bit) of data memory. Key architectural components include an ALU, multiplier/accumulator, barrel shifter, two data address generators, and a program sequencer. System interfaces comprise two serial ports, a 16-bit internal DMA port, and a byte DMA port.

Digital Signal Processor Dsp Feature Summary

• High-performance 12.5 ns instruction cycle enabling 80 MIPS sustained processing.
• Integrated memory architecture with 32K words program RAM and 48K words data RAM.
• Three independent computational units: ALU, MAC, and Shifter for parallel operations.
• Dual synchronous serial ports (SPORT) with hardware companding and autobuffering.

Digital Signal Processor Dsp Applications

• Digital audio processing and codec applications
• Industrial control systems requiring low-power DSP capabilities
• Portable battery-operated equipment utilizing power-down modes

Digital Signal Processor Dsp Procurement Notes

Verify the specific ordering suffix against the manufacturer's current datasheet to confirm package type and temperature range. Ensure compatibility with existing development tools and assembly syntax associated with the ADSP-21xx family. Confirm supply status through authorized distributors as availability may vary.

Digital Signal Processor Dsp Selection Notes

Select this model when 32K words of program memory and 48K words of data memory are required within the ADSP-218xN family. Consider the 100-lead LQFP or 144-ball BGA package options based on board space constraints. Evaluate power requirements against the device's 1.8 V core and 3.3 V I/O specifications.

Digital Signal Processor Dsp Part Context

This component belongs to the ADSP-218xN series, which includes members like the ADSP-2184N, ADSP-2185N, and ADSP-2189N. All series members share pin compatibility and code compatibility with the broader ADSP-2100 family, differing primarily in the amount of on-chip SRAM.

Digital Signal Processor Dsp Replacement Considerations

Other members of the ADSP-218xN series, such as the ADSP-2187N or ADSP-2188N, are pin-compatible alternatives. Selection depends on whether higher or lower memory capacities are needed for the specific application design.