ADSP-21369KSWZ-4A

Digital Signal Processor Dsp Overview

The ADSP-21369KSWZ-4A is a high-performance 32-bit/40-bit floating-point SHARC processor optimized for automotive audio applications. It features a single-instruction, multiple-data (SIMD) computational architecture with two processing elements (PEx, PEy), delivering up to 2.4 GFLOPS at a 400 MHz core instruction rate. The device integrates 2 Mbits of on-chip SRAM and 6 Mbits of mask-programmable ROM. Key peripherals include a digital applications interface (DAI), S/PDIF transceiver, eight serial ports, four asynchronous sample rate converters, and precision clock generators. It supports IEEE 32-bit and 40-bit floating-point formats alongside 32-bit fixed-point operations.

Digital Signal Processor Dsp Feature Summary

• SIMD Architecture: Two parallel processing elements (PEx, PEy) each containing an ALU, multiplier, and shifter for high-throughput DSP algorithms.
• On-Chip Memory: 2 Mbits of configurable SRAM and 6 Mbits of mask-programmable ROM with independent core and I/O processor access.
• Audio Peripherals: Integrated S/PDIF receiver/transmitter, four asynchronous sample rate converters (SRC), and eight synchronous serial ports (SPORTs).
• Flexible Interfaces: Digital Applications Interface (DAI) with signal routing unit (SRU), Digital Peripheral Interface (DPI), and external memory controllers for AMI and SDRAM.

Digital Signal Processor Dsp Applications

• High-performance automotive audio processing systems
• Digital signal processing in communications and military equipment
• Medical imaging and test instrumentation
• Speech recognition and motor control applications

Digital Signal Processor Dsp Procurement Notes

Verify the specific ordering suffix KSWZ-4A against the manufacturer's current data sheet revision H to confirm package type, temperature range, and boot configuration. Ensure compatibility with existing design files if replacing earlier variants within the ADSP-21369 family. Confirm availability through authorized distributors as supply status may vary.

Digital Signal Processor Dsp Selection Notes

Select this component when code compatibility with previous SHARC generations (ADSP-2106x, ADSP-2116x, ADSP-2126x) is required in SISD mode or when SIMD performance is needed. Choose the BGA_ED package for shared memory support between multiple processors. Evaluate the 400 MHz clock speed against power dissipation constraints, as higher frequencies increase thermal output.

Digital Signal Processor Dsp Part Context

The ADSP-21369 belongs to the third-generation SHARC family, succeeding models like the ADSP-21367 and ADSP-21368 which were removed from the datasheet. It offers improved performance over prior SHARC devices through enhanced SIMD capabilities and dedicated audiocentric peripherals. The KSWZ-4A designation indicates a specific variant within the broader ADSP-21369 product line, likely differing in packaging or environmental rating.

Digital Signal Processor Dsp Replacement Considerations

Direct replacements must be other ADSP-21369 variants with compatible pinouts and electrical characteristics. Verify that any substitute maintains the same package footprint (e.g., 256-ball BGA_ED or 208-lead LQFP_EP) and supports the required memory configurations. Check for updated revision notes regarding obsolete models.