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Published:2011/9/27 2:11:00 Author:Rebekka | Keyword: DTMF , Multi-channel code, decoding , infrared remote control | From:SeekIC
Figure (a) is the infrared emission circuit that composed of 12 the keyboard and S2559.
Figure (b)shows DTMF decoder circuit and channel control circuit composedof the MT8870.
Figure (c) is the voltage amplifier circuit composed of two-op ampLM358.
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