IR headphone receiver CD4046

Posted on Feb 5, 2013

IR detector diode D1 intercepts the IR signal at around 40 kHz and feeds it from U1, a high-gain preamp, to PLL, U2, a 4046 configured to serve as an FM detector. U3 is an audio amplifier that feeds a pair of headphones or a speaker.

IR headphone receiver CD4046
Click here to download the full size of the above Circuit.

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