The CMX868 includes a Programmable Tone Detector where coefficients are used to program its filtering response. Are their any freely available tools, which allow me to design my own filters?
A. The coefficients used to program the CMX868 are the discrete digital representation of 2 biquad IIR filter. Much software is available, usually at a high price, that allows the user to design all types of filter as well as many other functions that will never be used. CML has now released a Microsoft Excel based Application Note, which allows for the design of simple IIR filters but also generates the coefficients. The application note can be downloaded from the website via the following link: 868FL_1.htm.
Related Questions
- The CMX868 includes a Programmable Tone Detector where coefficients are used to program its filtering response. Are their any freely available tools, which allow me to design my own filters?
- The CMX860 includes a programmable IIR based filter which can be used to detect the frequencies not included as standard, is their a description of tool that can help me use this function?
- The CMX867 includes a programmable IIR based filter which can be used to detect the frequencies not included as standard, is their a description of tool that can help me use this function?
