Here are a number of alternative ways to avoid problems when driving Varactor Diodes. Varactor (or “varicap”) diodes are used primarily in radio-frequency (RF) circuits to provide a ...

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 ...

In our modern era, digital logic has become the core of all the electronics circuits either in the form of an FPGA ... A VCXO uses an additional varactor diode connected to its input terminal (or any ...

There is no traditional main tuning capacitor. Instead a 1SV149 varactor provides the radio’s main tuning capacity (the diode tunes between 35 to 500 pF). The post provides a nice design and ...

circuits. 2. BSIM (Berkeley Short-channel IGFET Model) is the conventional model generally utilized in simulating MOS-Varactor. It was developed by the University of California, Berkeley.