PDF VTO-9000 Data sheet ( Hoja de datos )

Número de pieza	VTO-9000
Descripción	Hyperabrupt Varactor-Tuned Oscillators
Fabricantes	Agilent(Hewlett-Packard)
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No Preview Available ! 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 Description HP VTO-9000 Hyperabrupt Series oscillators use a silicon transistor chip as a negative resistance oscillator. The oscillation fre- quency is determined by a silicon hyperabrupt varactor diode acting as a voltage-variable capacitor in a thin-film microstripline resonator. 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 commer- cial 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 conven- tional 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 Schematic +15 V Series Feedback Output Matching RF Output Pin Configuration TO-8V GROUND +V TUNE 3 24 1 RF OUT +DC VOLTAGE CASE GROUND 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 applica- tions as VTO-8000 Series oscilla- tors. The VTO-9000 Series is the desired choice for superior linearity and modulation sensitiv- ity requirements. V Tune Tuning Port Capacitor Varactor Resonator 5964-9814E 9-30 1 page TO-8V Case Drawing .20 .017 +.002 –.001 .50 .45 DIA DIA 0.22 MIN .300 TYP .150 TYP .150 TYP .300 TYP 3 2 4 1 V TUNE V+ GROUND RF OUT GLASS RING .060 DIA TYP (3X) CASE GROUND APPROXIMATE WEIGHT 1.7 GRAMS NOTES (UNLESS OTHERWISE SPECIFIED): 1. DIMENSIONS ARE SPECIFIED IN INCHES 2. TOLERANCES: xx ± .02 xxx ± .010 Test Fixtures for TO-8␣ Packages (TF 801/802) Oscillators (VTO) Features • DC to 11 GHz Frequency Range • Connectorized Tuning Port and RF Output • Easy to Test Package • Repeatable Performance Applications • Engineering Characterization • Incoming Inspection • System Prototype • Demonstration of Device Performance Description To facilitate testing and prototyping of products in the TO-8V package, a series of test fixtures is available. Designated the HP TF Series test fixtures, they feature rugged construction for precise, repeatable measurements. The TF Series test fixtures come supplied with mounting hardware to ensure excellent ground contact between the oscillator package and test fixture. This assures excellent contact between package pins and test fixture connector pins for reliable testing. The device under test is aligned according to Figure 13, and pushed fully down onto the fixture. The steel mounting ring clamp is placed over the device under test and secured by ma- chine screws prior to testing. Orientation of pins can be verified by comparison with part (c) of Figure 13. It is recommended that both machine screws be used to fasten the ring clamp. Screws should be tightened down snugly with a jewelers type screwdriver. For different connector options check the table in Figure 13 to identify the correct part numbers. It should be noted that some output power variation may be seen, from unit data, at frequen- cies above 8 GHz. This is due to small differences in lengths of test fixture RF output connector pins. 9-34 5 Page

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