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triden
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Right now we have a projector and it is about 75 feet away. The remote, well, works pretty terribly to say the least. What I would like to do is build an IR amplifier to boost the signal so that the projector can pick it up much easier. What I plan to do is use some sort of buffer/driver IC to get some current gain. Ill have an IR receiver at one end that goes into the amplifier. Then the amplifier will output to at 75foot long cable with IR emitters on it aimed at the projector IR receiver. When I aim my remote at the amp, it should send it down the wire and shoot it out right at the projector.
With this in mind, can you suggest a possible chip to use? I am not too familiar with my options and I can only mostly find chips with 80mA output (3-state) although I don't need a 3 state driver for this. Maybe even instead of putting the IR emitter on the long cable, I can just wire up 10 of them to the output of the driver to gain a better chance of getting a signal through.
This is all I could find so far: http://focus.ti.com/lit/ds/symlink/tlv4110.pdf As far as I know, I would only need current gain, not voltage gain? I am thinking that since it is a digital square wave signal, you can't amplify the voltage or else everything gets out of wack.
Thanks for you help
Chris
With this in mind, can you suggest a possible chip to use? I am not too familiar with my options and I can only mostly find chips with 80mA output (3-state) although I don't need a 3 state driver for this. Maybe even instead of putting the IR emitter on the long cable, I can just wire up 10 of them to the output of the driver to gain a better chance of getting a signal through.
This is all I could find so far: http://focus.ti.com/lit/ds/symlink/tlv4110.pdf As far as I know, I would only need current gain, not voltage gain? I am thinking that since it is a digital square wave signal, you can't amplify the voltage or else everything gets out of wack.
Thanks for you help
Chris
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