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 ...

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.

Voltage controlled oscillators (VCOs) play an important role in various communication systems like wireless base stations, cell phones, GPS, navigation, instruments, LAN/WAN, telecommunications, ...

Perhaps it is an effect of the economy, but this year’s winners in the Best of Ideas for Design (IFDs) voting feature simple—almost trivial-looking—solutions to design challenges. The winner, “Use A ...