LM909 (electronic toys) radio remote control receivier decoding circuit

Published:2011/7/28 0:53:00 Author:TaoXi | Keyword: electronic toys, radio, remote control, receivier, decoding circuit | From:SeekIC

The LM909 is designed as the radio remote control receivier decoding circuit that can be used in the electronic toys application. The circuit is composed of the radio frequency amplifier, the automatic gain control (AGC) circuit, the wave detector, the phase locked loop, the level detection circuit and the push-pull output circuit. Features The decoding frequency is 40MHz.The RF sensitivity is high.It has the audio PLL demodulator.The automatic gain control range is wide.The surge output current is 1A, the continuous operating current is 0.6A.The power supply voltage range is wide (5-14V).It has the voltage-stabilized power supply.



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