C28x Filter Library SPRC082 (ACTIVE)

Description & Features

Technical Documents

Support & Training

Order Now


Order Now
Part Number Status Current Version   Version Date   OS   Host  

SPRC082:
C28x Filter Library

ACTIVE 0.9c - Newer Revision Available in controlSUITE   JAN-12-2005   Win95/98/2000/NT   PC  

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.


TI Devices (4)

Part Number Name Product Family
TMS320C2801  32-Bit Digital Signal Controller with ROM  C2000 real-time control MCUs 
TMS320C2802  32-Bit Digital Signal Controller with ROM  C2000 real-time control MCUs 
TMS320F2802  32-Bit Digital Signal Controller with Flash  C2000 real-time control MCUs 
TMS320F2809  32-Bit Digital Signal Controller with Flash  C2000 real-time control MCUs 

Support & training

Search our extensive online knowledge base where millions of technical questions and answers are available 24/7.

Search answers from TI experts

Content is provided 'AS IS' by the respective TI and Community contributors and does not constitute TI specifications.
See terms of use.

If you have questions about quality, packaging, or ordering TI products visit our Support page.

Technical articles