ADSP-21369KSWZ-5A

Digital Signal Processor Dsp Overview

The ADSP-21369KSWZ-5A is a high-performance 32-bit/40-bit floating-point digital signal processor from Analog Devices, belonging to the SHARC family. It features a single-instruction, multiple-data (SIMD) computational architecture with two processing elements (PEx and PEy), delivering up to 2.4 GFLOPS at a core instruction rate of 400 MHz. The device integrates 2 Mbits of on-chip SRAM and 6 Mbits of mask-programmable ROM. Key peripherals include a digital applications interface (DAI) with S/PDIF transceivers, four asynchronous sample rate converters, eight serial ports, and precision clock generators. It is available in a 256-ball BGA_ED package.

Digital Signal Processor Dsp Feature Summary

• SIMD Architecture: Dual processing elements (PEx, PEy) enable parallel execution of DSP algorithms with IEEE 32-bit and 40-bit floating-point support.
• On-Chip Memory: Includes 2 Mbits of configurable SRAM and 6 Mbits of mask-programmable ROM for code security and storage.
• Audio-Centric Peripherals: Features an S/PDIF receiver/transmitter, four asynchronous sample rate converters (SRC), and eight serial ports.
• Flexible Interfaces: Supports Digital Applications Interface (DAI) and Digital Peripheral Interface (DPI) with flexible signal routing units (SRU).

Digital Signal Processor Dsp Applications

• High-performance automotive audio processing
• Digital signal processing in communications systems
• Medical imaging and instrumentation
• Speech recognition and audio effects processing

Digital Signal Processor Dsp Procurement Notes

Verify the specific suffix 'KSWZ-5A' against the manufacturer's current ordering guide, as suffixes often denote temperature range, package type, or revision. Confirm RoHS compliance and moisture sensitivity level requirements for your assembly process. Ensure the 256-ball BGA_ED package footprint matches your PCB design guidelines.

Digital Signal Processor Dsp Selection Notes

Select this component when high-throughput floating-point arithmetic is required alongside dedicated audio interfaces. The SIMD architecture offers significant performance gains over previous SISD SHARC processors. Consider the 400 MHz clock speed and 2.4 GFLOPS capability for complex filter banks or FFT operations. Ensure sufficient external memory bandwidth if internal SRAM is insufficient for your buffer requirements.

Digital Signal Processor Dsp Part Context

The ADSP-21369 is part of the third-generation SHARC processor family, optimized for audio applications. It maintains source code compatibility with earlier ADSP-2126x and ADSP-2116x series processors. The KSWZ designation typically indicates a commercial temperature range and LQFP_EP or BGA package variant, while the '-5A' suffix may specify a specific binning or revision level defined by Analog Devices.

Digital Signal Processor Dsp Replacement Considerations

Direct replacements within the SHARC family include the ADSP-21367 and ADSP-21368, though these have been deprecated in recent datasheet revisions. For higher performance, consider the ADSP-21479 series. Verify pinout compatibility and software migration efforts when substituting with other SHARC devices.