Voltage controller oscillators ( 2 ) :

A voltage controlled oscillator or as more commonly known, a VCO, is an oscillator where the control voltage controls the oscillatoroutput frequency. VCO can be built using many circuit techniques.For RF applications the principal variable or tuning element is a varactor diode. This kind of RF voltage controlled oscillator is tuned across its band by a "clean" dc voltage applied to the varactor diode to vary the net capacitance applied to the tuned circuit.

• CMOS inverter VCO tunes octave to UHF - robust and versatile vco provides a stable output to 300 MHz   
• Voltage controller oscillators   

 back to : Links >> Electronic Circuits >> Oscillators