The CMX823 programmable paging decoder IC is a high performance, low power audio tone decoder. It supports tones from 280 kHz to 3.5 Hz and allows users to create their own tone frequency alphabet for ...
Decoding the telephone-generated DTMF is the purpose of building the DTMF decoder 2 which can be connected directly to a serial port and use a HyperTerminal on a PC to view the digits. A 16×2 LCD ...
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