DTMF Development Board
DTMF Development Board offers a very convenient way to generate DTMF tones and demodulate it. It uses the famous MT8880/MT8888 DTMF transreceiver IC. Easy 10 pin Box Header connector for interfacing data/control pins Crystal derived frequency source for accurate generation and demodulation of DTMF tones for your project Onboard upto 350 mW audio amplifier block for DTMF tones with Volume
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