http://www.bestmp3playerearbuds.com/receiver-headphone/
What is the CA3237 IC used for the circuit above?
I want to build a wireless headset with the transmitter and IR receiver. I because my transmitter, but I have a little problem with the receiver: this page (http://www.circuitsuggest.com/wireless-ir-headphone-receiver.html) is listed a preamp IC, but in my local store, I can not find them, and I can not find data sheets on the web. What ICs are good for replace preamp?
This is a smart infrared photodetector. He looks for a signal centered at 40 kHz according to your diagram I guess it is long because of the production I can not find a data sheet. But the pattern that has fed from 9VDC ones I can find operate at 5VDC and below. So you would have to reduce the tension that the. The following reference is spoiled for choice. I think that the provisions of assembly and the range can be anything you make your decision on. So of course, those who are in stock and that the minimum quantity is 1. I did not take these decisions in ignorance. 20receiver% http://search.digikey.com/scripts/DkSearch/dksus.dll?Cat=1967024&k=ir
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