32-Bit DSCs Sport High-Res PWM

July 20, 2006

The TMS320F28015 and F28016 60-MHz, 32-bit digital signal controllers (DSCs) from Texas Instruments incorporate three 16-bit, high-resolution pulse-width modulation (HRPWM) channels in addition to eight conventional channels. The HRPWM's 150-

William G. Wong

The chips use a mixed 16/32-bit instruction set for improved code density. The DSCs have up to 64 kbytes for flash and 12 kbytes of RAM. Peripherals for various versions of the chips include two SPI ports, an SCI port, an I²C port, and a CAN 2.0B port. The chips have a 12-bit analog-to-digital converter (ADC) and a pair of quadrature encoder pulse (QEP) interfaces.

These chips target power-supply and motor-control applications, including processor-intensive sensorless vector motor control. Pricing starts at $3.25. They're AEC Q100 automotive-qualified and available in a 100-pin low-profile quad-flat package (LQFP). A digital power development kit that includes the TMS320C2000 Digital Power Supply (DPS) software library and a series of hardware modules from Tier Electronics also is available.

Texas Instruments
www.ti.com

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William G. Wong | Senior Content Director - Electronic Design and Microwaves & RF

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I earned a Bachelor of Electrical Engineering at the Georgia Institute of Technology and a Masters in Computer Science from Rutgers University. I still do a bit of programming using everything from C and C++ to Rust and Ada/SPARK. I do a bit of PHP programming for Drupal websites. I have posted a few Drupal modules.

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