Physics, asked by lilabaipatil2632, 1 year ago

Discuss DTMF application in brief.

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Answered by Anonymous

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DTMF Decoder Application Circuit and Working Procedure. In earlier days, our telephone systems were operated by manually in a telephone exchange room. ... The DTMF decoder circuit mostly used in mobile communications system which recognizes the sequence of DTMF tones from the standard keypad of the mobile phone

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