ADSP-21990 Rev. A is a mixed-signal DSP controller that features a 16-bit fixed-point DSP core capable of delivering up to 160 MIPS of sustained performance.
The ADSP-21990 is a mixed-signal DSP controller based on the ADSP-2199x DSP core, designed for high-performance industrial motor control and signal processing. It integrates a 16-bit fixed-point DSP core with up to 160 MIPS sustained performance, 8K words of on-chip RAM, and various embedded control peripherals.
Key features include an 8-channel, 14-bit analog-to-digital converter (ADC) with up to 20 MSPS sampling rate, a 3-phase, 16-bit PWM generation unit, and a dedicated 32-bit encoder interface. The device supports flexible clock generation via a programmable PLL and includes interfaces for SPI and synchronous serial communications (SPORT).
| DSP Core Type | 16-bit, fixed-point |
|---|---|
| Sustained Performance | up to 160 MIPS |
| On-Chip RAM | 8K words |
| ADC Channels | 8-channel |
| ADC Resolution | 14-bit |
| ADC Sampling Rate | up to 20 MSPS |
| PWM Phases | 3-phase |
| PWM Resolution | 12.5 ns |
| Operating Temperature | -40°C to +85°C |
| Package Types | 196-ball CSP_BGA and 176-lead LQFP |
The ADSP-21990 provides up to 160 MIPS sustained performance.
Yes, it integrates 8K words of on-chip RAM configured as 4K words of program RAM and 4K words of data RAM.
Target applications include industrial motor drives, uninterruptible power supplies, optical networking control, and data acquisition systems.