TMS320LC2401A Datasheet, PDF (55/88 Pages) Texas Instruments – DSP CONTROLLERS

TMS320LF2401A, TMS320LC2401A
DSP CONTROLLERS
SPRS161H − MARCH 2001 − REVISED MARCH 2004
features of the Texas Instruments (TI) TMS320x24xx DSP controllers to significantly reduce noise
effects caused by EMI radiation.
This application report reviews designs of 3.3-V DSP versus 5-V DSP for low HP motor control
applications. The application report first describes a scenario of a 3.3-V-only motor controller indicating
that for most applications, no significant issue of interfacing between 3.3 V and 5 V exists.
Cost−effective 3.3-V − 5-V interfacing techniques are then discussed for the situations where such
interfacing is needed. On-chip 3.3-V analog-to-digital converter (ADC) versus 5-V ADC is also
discussed. Sensitivity and noise effects in 3.3-V and 5-V ADC conversions are addressed. Guidelines
for component layout and printed circuit board (PCB) design that can reduce system noise and EMI
effects are summarized in the last section.
To receive copies of TMS320 DSP literature, contact the Literature Response Center at 800-477-8924.
A series of DSP textbooks is published by Prentice-Hall and John Wiley & Sons to support digital signal
processing research and education. The TMS320 DSP newsletter, Details on Signal Processing, is published
quarterly and distributed to update TMS320 DSP customers on product information.
Updated information on the TMS320 DSP controllers can be found on the worldwide web at:
http://www.ti.com.
To send comments regarding the TMS320LF2401A/TMS320LC2401A data sheet (literature number
SPRS161), use the [e-mail] email address, which is a repository for feedback. For
questions and support, contact the Product Information Center listed at the
http://www.ti.com/sc/docs/pic/home.htm site.
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