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Extends Home Entertainments via FM Transmitter Circuit Diagram
Monday, 23. November 2009 by
admindata
A single-chip, short-range FM radio transmitter circuit diagram is shown in the picture below. You may extend link for your home entertainment system to a portable radio that can be carried around your house.
The single IC is a voltage-controlled oscilator with integrated varactor which inductor L1 set nominal oscillation frequency and a 390nH value places the frequency at 100Mhz. The IC operates on a single-supply voltage (3V-5V). R1 tunes over the FM band of 88MHz to 108MHz.
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