Designed to control the frequency of crystal oscillator circuits, the 3022 series of high-ratio, hyperabrupt varactor tuning diodes is designed to deliver a dc bias control voltage from -0.3V to -4V.

How does a varactor diode work? To form the PN junction that makes a diode, half the piece is doped with a trace amount of “donor atoms” that have one more electron than the intrinsic stuff to make ...

The varactor diode capitalizes on the properties of the depletion layer of a p-n diode. Under reverse bias, the carriers in each region-holes in the p type and electrons in the n type-move away from ...