ADSP-21990BSTZ

Digital Signal Processor Dsp Overview

The ADSP-21990BSTZ is a mixed-signal DSP controller based on the ADSP-2199x core, operating at up to 160 MHz with 160 MIPS sustained performance. It features an 8-channel, 14-bit ADC system with a 20 MSPS sampling rate and a precision 1.0 V voltage reference. The device integrates a 3-phase, 16-bit center-based PWM generation unit with 12.5 ns resolution, a dedicated 32-bit encoder interface unit, and dual 16-bit auxiliary PWM outputs. Memory consists of 8K words of on-chip RAM (4K x 24-bit program, 4K x 16-bit data) and 4K words of boot ROM. It supports 2.5 V internal operation with 3.3 V I/O and operates within a temperature range of –40°C to +85°C.

Digital Signal Processor Dsp Feature Summary

• ADSP-2199x 16-bit fixed-point DSP core with up to 160 MIPS performance
• 8-channel, 14-bit ADC system with up to 20 MSPS sampling rate
• 3-phase, 16-bit center-based PWM generation unit with 12.5 ns resolution
• Dedicated 32-bit encoder interface unit with companion encoder event timer

Digital Signal Processor Dsp Applications

• Industrial motor drives
• Uninterruptible power supplies
• Optical networking control
• Data acquisition systems
• Test and measurement systems

Digital Signal Processor Dsp Procurement Notes

Verify the RoHS compliance status for the BSTZ suffix variant against current manufacturer documentation, as historical records indicate potential non-compliance for similar BST packages. Confirm package availability in 176-lead LQFP format. Ensure sourcing channels provide valid traceability for this specific mixed-signal controller revision.

Digital Signal Processor Dsp Selection Notes

Select the ADSP-21990BSTZ when high-performance vector control or signal processing requires integrated analog-to-digital conversion and precise PWM generation. The device is suitable for applications needing code compatibility with previous ADSP-217xx families while utilizing enhanced computational units and flexible clock generation from low-speed input clocks.

Digital Signal Processor Dsp Part Context

The ADSP-21990 belongs to the ADSP-2199x family of mixed-signal DSP controllers. It is fabricated using a high-speed, low-power CMOS process and offers architectural enhancements over earlier ADSP-21xx embedded DSPs, including improved indirect addressing options and parallel execution capabilities for efficient code execution.

Digital Signal Processor Dsp Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.