VTO-9090

Hyperabrupt Varactor-Tuned Oscillators Technical Data VTO-9000 Series Features 25 MHz to 2.3 GHz Coverage Fast Tuning Fast Setting Time +20 VDC Max Tuning Voltage 10 mW Output Power ± 2.0 dB Output Flatness Hermetic Thin-film Construction This provides extremely fast tuning speed limited primarily by the internal impedance of the user-supplied voltage driver. This family of oscillators is similar to the standard commercial VTO-8000 Series except for the incorporation of a silicon hyperabrupt varactor tuning diode. This enables the oscillator to be tuned over the specified range in less than 20 volts rather than 40 to 50␣ volts in conventional oscillators. The VTO-9000 Series VTOs are packaged in TO-8 transistor cans for simple installation in a conventional 50-ohm microstripline PC board. They are ideal for most compact Pin Configuration TO-8V GROUND +V 3 RF OUT 2 1 4 TUNE +DC VOLTAGE CASE GROUND Description HP VTO-9000 Hyperabrupt Series oscillators use a silicon transistor chip as a negative resistance oscillator. The oscillation frequency is determined by a silicon hyperabrupt varactor diode acting as a voltage-variable capacitor in a thin-film microstripline resonator. lightweight commercial and military equipment designs. Test fixturing is also available for lab bench test applications. See the “Test Fixtures for TO-8 Packages” section for additional information and outlines. Applications The VTO-9000 Series oscillators may be used in the same appl...