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C28x Filter LibraryStatus: ACTIVE

SPRC082

      Texas Instruments
         
  SPRC082
NameC28x Filter Library
StatusACTIVE
Price (US$)Free 
Host  PC 
OS  Win95/98/2000/NT 
Current Version  0.9c 
Version Date  JAN-12-2005 
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Product Information

Description

Digital filters are a common requirement for digital signal processing systems. There are two types of digital filters: Finite impulse response (FIR) and infinite impulse response (IIR) filters. Both the filter modules are available in the filter library.

We have made available an ezFIR filter design package (MATLAB script) to interactively generate filter coefficients for the required frequency response characteristics.

IIR filter uses the cascade configuration of direct form II structured Second order section (SOS) that reduces sensitivity to coefficient quantization. The SOSs are commonly referred to as "biquads". The SOS coefficients generated by the MATLAB for given set of filter specification provides unity gain in the pass-band and attenuates the remaining frequency component. Though the input to output gain does not peak above unity, the intermediate node gain in the "biquad" sections would vary significantly depending on the filter characteristics. Hence, we have made a available a ezIIR filter design package (MATLAB script) that generates scaled second order coefficients without overflow issues in the intermediate nodes. The following table summarizes the set of modules that are available in this library.

The following table summarizes the set of modules that are available in this library.

 
Note:

  • Documentation of Filter Modules is archived in the self-extracting zip file, and the pdf files can be found in c:\tidcs\c28\dsp_tbox\filter\doc directory.

  • Software Test Bench (STB) support library must be downloaded to use the STB examples.


Order Options

 SPRC082
Name C28x Filter Library
Status  ACTIVE 
Price (US$) Free 
 

    
Related Devices
Part# Name Product Family
TMS320C2801 32-Bit Digital Signal Controller with ROM C2000™ High Performance 32-bit Controllers 
TMS320C2802 32-Bit Digital Signal Controller with ROM C2000™ High Performance 32-bit Controllers 
TMS320F2802 32-Bit Digital Signal Controller with Flash C2000™ High Performance 32-bit Controllers 
TMS320F2809 32-Bit Digital Signal Controller with Flash C2000™ High Performance 32-bit Controllers 

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