wireless ir headphone receiver


Posted on Feb 4, 2014

A photodiode Dl feeds high gain IR remote control preamp 1C, a CA3237E. U2 is a PLL FM detector tuned to around 100 kHz. The detector output is amplified by U3 and it can drive a speaker or a set of headphones.


wireless ir headphone receiver
Click here to download the full size of the above Circuit.




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