Published:2011/7/26 2:28:00 Author:Christina | Keyword: Distant range, remote control, coding, decoding, transmitting, receiving | From:SeekIC
The transmitter components circuit principle
The main technical parameters of the transmitter components are: frequency modulation system; the operating frequency is 36.1MHz; the power voltage is 12V, the transmitter current is less than or equal to 1.5A.
The transmitter components are composed of the coding signal generator circuit, modulated signal amplifier circuit, the transmitter LO circuit, the 3 times frequency amplifier circuit, the high frequency amplifier circuit, the high frequency power amplifier circuit, the coded signal generating circuit uses the special coding circuit U101(PT2262), the modulated signal amplifier circuit, the transmitter local oscillator circuit and the pulse (square wave) modulation circuit use the U102(MC2833). The modulated high-frequency signal is output by the pin of U102.
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