Infrared emission circuit with the printing quartz crystal oscillator

Published:2011/5/16 8:04:00 Author:Christina | Keyword: Infrared emission, printing quartz, crystal oscillator | From:SeekIC

The Infrared emission circuit with the printing quartz crystal oscillator is as shown. The oscillator is composed of the crystal Q, the VMOS transistors mosfet and the external components. The low frequency modulation signal UE adds the the amplifier VT1 through the capacitance C1. The modulated signal with the carrier wave is amplified by the VMOS1 mosfet and is output by the infrared diodes VD1 ~ VD6.



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