varicap
Sign in to saveA varicap diode, varactor diode, variable capacitance diode, variable reactance diode or tuning diode is a type of diode designed to exploit the voltage-dependent capacitance of a reverse-biased p–n junction.
Key facts
- Electronic component.name
- Varicap diode
- Electronic component.image
- Varicap Diodes.jpg
- Electronic component.type
- Passive
- Electronic component.invention_Year
- 1961
- Electronic component.first_produced
- 1967
- Electronic component.first_produced_by
- TRW Inc.
- Electronic component.pins
- Anode and cathode
- Electronic component.symbol
- 150px
via Wikipedia infobox
Article
10 sectionsContents
- Applications
- Operation
- Use in a circuit
- Tuning circuits
- Harmonic multiplication
- Substitutes for varicap diodes
- See also
- References
- Further reading
- External links
A varicap diode, varactor diode, variable capacitance diode, variable reactance diode or tuning diode is a type of diode designed to exploit the voltage-dependent capacitance of a reverse-biased p–n junction.
== Applications == Varactors are used as voltage-controlled capacitors. They are commonly used in voltage-controlled oscillators, parametric amplifiers, and frequency multipliers. Voltage-controlled oscillators have many applications such as frequency modulation for FM transmitters and phase-locked loops. Phase-locked loops are used for the frequency synthesizers that tune many radios, television sets, and cellular telephones.