Hi guys
I am looking for a ultra low power (under 50uA) circuit to detect 38KHz IR signal, that one that normally uses in TV etc.. Anyone come across one?
Here is what I am trying to do:
I have a TSOP38438 IR Receiver, which demodulate the 38KHz IR signal. But it draws too much current (~350uA) for my application. Instead of having the IR Receiver on all the time. I would like my low power IR detector wake up my MCU when a 38KHz IR signal is detected, then power my IR receiver, then decode...
low power IR detection circuit
I am looking for a ultra low power (under 50uA) circuit to detect 38KHz IR signal, that one that normally uses in TV etc.. Anyone come across one?
Here is what I am trying to do:
I have a TSOP38438 IR Receiver, which demodulate the 38KHz IR signal. But it draws too much current (~350uA) for my application. Instead of having the IR Receiver on all the time. I would like my low power IR detector wake up my MCU when a 38KHz IR signal is detected, then power my IR receiver, then decode...
low power IR detection circuit