This application note describes how to decode standard DTMF tones using the minimum number of external discrete components and a PIC. The two examples use a PIC which has an 8 bit timer and either a comparator or an ADC, although it can be modified for use on a PIC which has only digital I/O. The Appendices have example code for the 16C662 (with comparator) and 16F877 (using the ADC).
As the majority of the Digital Signal Processing is done in software, little is required in the way of external signal conditioning. Software techniques are used to model the individual elements of a DTMF Decoder IC.
資源簡介：This application note describes how to decode standard DTMF tones using the minimum number of external discrete components and a PIC. The two examples use a PIC which has an 8 bit timer and either a comparator or an ADC, although it can be ...
上傳時間： 2013-11-21
上傳用戶：zhaoke2005
資源簡介：·DTMF Decoding with a PIC16xxx
上傳時間： 2013-04-24
上傳用戶：youlongjian0
資源簡介：·詳細說明：DTMF軟解碼實現方法,英文的,但算法好,節約您的開發成本.文件列表: ? 試驗DTMF軟解碼 ? ..............\DTMF Decoding with a PIC16xxx.doc ? ..............\試驗DTMF軟解碼 ? ..............\..............\Form1.frm ?
上傳時間： 2013-04-24
上傳用戶：20160811
資源簡介：自動檢測技術 上海電機學院精品課件 PPT版 (New)
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上傳用戶：zhoujunzhen
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上傳用戶：thuyenvinh
資源簡介：Tucker, PARAFAC, GRAM, RAFA and misc. 2nd order models with a test data set (old version now covered by the N-way Toolbox)
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上傳用戶：lnnn30
