Features• Complete DtmF Receiver• Low power consumption• Internal gain setting amplifier• Adjustable guard time• Central office quality• Power-down mode• Inhibit mode• Backward compatible withMT8870C/MT8870C-1Applications• Receiver system for British Telecom (BT) orCEPT Spec (MT8870D-1)• Paging systems• Repeater systems/mobile radio• Credit card systems• Remote control• Personal computers• Telephone answering machine
上传时间： 2013-11-20
上传用户：mpquest
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.
上传时间： 2013-11-21
上传用户：zhaoke2005
试验DtmF软解码:
上传时间： 2013-11-20
上传用户：qwerasdf
本设计介绍了DtmF的通信系统，利用dsp芯片实现，给出了仿真结果图。给出了实现的程序和原理，对于初学者想必会有帮助！
上传时间： 2013-11-14
上传用户：pzw421125
PIC单片机解码DtmF程序
上传时间： 2015-01-25
上传用户：Andy123456
DtmF编解码程序,linux环境下
上传时间： 2015-02-06
上传用户：Andy123456
tms320c5409 DtmF source code
上传时间： 2015-02-06
上传用户：skfreeman
tms320c5409 DtmF source code
上传时间： 2013-12-22
上传用户：cxl274287265
在DSP上运行的DtmF（双音多频）解调程序
上传时间： 2015-02-07
上传用户：lixinxiang
DtmF信号识别的经典论文
上传时间： 2014-01-15
上传用户：ecooo
