GC15003

The GC15000 series of frequency-linear tuning varactors are used in VCO’s, filters, amplifiers and modulators forwide band tuning through Ku band. The frequency linear characteristics allow over one octave linear tuning in suitable circuits, with no need for external linearization. The combination of highQand low surface noise results in low FM noise in VCO applications. They are particularly useful in modulated VCO’s because of their constantsensitivity, and high modulation rate capability.

A Frequency Linear Tuning Varactor (FLTVAR)TM GC15003 is a silicon epitaxial mesa device, designed to provide wideband Linear Tuning in VCO and filter applications. These diodes of GC15003 feature thermal oxide passivation for high reliability, low leakage current, and very low surface noise. They offer Q values well above ion-implanted hyperabrupt diodes.

The specifications of GC15003 below apply to chips, or to chips mounted on carriers. Although these chips can be provided in any of our standard packages, GC15003 is not recommended for the lower capacitance diodes, because the parallel parasitic capacitance of the package degrades linearity at high bias voltages.