GENERAL DESCRIPTION
●The ADSP-21990 is a mixed-signal DSP controller based on the ADSP-2199x DSP core, suitable for a variety of high performance industrial motor control and signal processing applications that require the combination of a high performance DSP and the mixed-signal integration of embedded control peripherals such as analog-to-digital conversion. Target applications include: industrial motor drives, uninterruptible power supplies, optical networking control, data acquisition systems, test and measurement systems, and portable instrumentation.
●FEATURES
●ADSP-2199x, 16-bit, fixed-point DSP core with up to 160 MIPS sustained performance
●8K words of on-chip RAM, configured as 4K words on-chip, 24-bit program RAM and 4K words on-chip, 16-bit data RAM
●External memory interface
●Dedicated memory DMA controller for data/instruction transfer between internal/external memory
●Programmable PLL and flexible clock generation circuitry enables full speed operation from low speed input clocks
●IEEE JTAG Standard 1149.1 test access port supports on-chip emulation and system debugging
●8-channel, 14-bit analog-to-digital converter system, with up to 20 MSPS sampling rate (at 160 MHz core clock rate)
●3-phase, 16-bit, center-based PWM generation unit with 12.5 ns resolution at 160 MHz core clock (CCLK) rate
●Dedicated 32-bit encoder interface unit with companion encoder event timer
●Dual 16-bit auxiliary PWM outputs
●16 general-purpose flag I/O pins
●3 programmable 32-bit interval timers
●SPI communications port with master or slave operation
●Synchronous serial communications port (SPORT) capable of software UART emulation
●Integrated watchdog timer
●Dedicated peripheral interrupt controller with software priority control
●Multiple boot modes
●Precision 1.0 V voltage reference
●Integrated power-on-reset (POR) generator
●Flexible power management with selectable power-down and idle modes
●2.5 V internal operation with 3.3 V I/O
●Operating temperature range of –40℃ to +85℃
●196-ball CSP_BGA and 176-lead LQFP package
