Digital signal controllers are first with floating-point math

Digital signal controllers are first with floating-point math

DSCs boost performance by an average of 50% and simplify software development

Said to be the industry’s first floating-point digital signal controllers, the TMS320F28332, F28334, and F28335 devices provide 300-MFLOPS performance, at 150 MHz, with cost as low as fixed-point processors. The devices allow the simplified software development common to floating-point operation, and they provide a performance boost that allows increased efficiency in solar-power inverter, variable-speed ac induction motor drive, and automotive radar applications.

Many applications will see a 50% performance boost and some algorithms, such as a FFT, will see a 200% improvement over an equivalent 32-bit fixed-point implementation. System bandwidth is improved by the six-channel DMA controller that services the fast A/D converter, the configurable 16- or 32-bit external memory interface, and high-speed serial ports.

The chips have up to 512 Kbytes of flash, a 12-bit 16-channel 12.5-Msample/s A/D converter, up to 18 PWM channels (six of which have 150-ps resolution), and communication interfaces include CAN, I2C, UART, and SPI. ($13.30 to $19.95 ea/1,000—samples September.)

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