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LR3709 (video tape recorder) infrared remote control launch

2016-09-11 13:07  
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LR3709 (video tape recorder) infrared remote control launch circuit
LR3709 (video tape recorder) infrared remote control launch circuit
Features The CMOS IC.It has six input ports (pin-2 to pin-7) and five output ports (pin-8 to pin-12), and they can form the 6X5 keyboard matrix, so this device can launch 30 instructions.The instructions use the pulse coding modulation mode. Because the pulse is narrow, the infrared emission diode can get the large current from the circuit to enhance the anti-jamming performance and the remote distance, also the power consumption is small.It can prevent the error action.18-pin dual-row DIP package.