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 frequency is determined by a silicon hyperabrupt varactor diode acting as a voltage-variable capacitor in a thin-film microstripline resonator. Schematic 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 +15 V Output Matching RF Output Series Feedback Varactor V Tune Tuning Port Capacitor 5964-9814E Resonator 9-30 Pin Configuration TO-8V GROUND +V 3 TUNE RF OUT 2 4 1 +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 applications as VTO-8000 Series oscillators. The VTO-9000 Series is the desired choice for superior linearity and modulation sensitivity requirements. Electrical and Performance Specifications Guaranteed Specifications @ 25°C Case Temperature (0° to +65°C Operating Temperature) Model No. Frequency Range, Min. Power Output Into 50–ohm Load, Min . Power Output Variation @ 25°C, Max. Operating Carrier Temperature Range Frequency Drift Over Operating Temperature, Typ. Pulling Figure (12 dB Return Loss), Typ. Pushing Figure, +15 VDC Supply, Typ. Harmonics, Below Carrier, Typ. Spurious Output Below Carrier, Min. Tuning Voltage Low Frequency, Min. High Frequency, Max Maximum Tuning Voltage Tuning Port Capacitance, Nom. Phase Noise, Single Sideband, 1 Hz Bandwidth, Typ. 50 kHz From Carrier 100 kHz From Carrier Input Power, ± 1% Regulaltion Voltage, Nom. Current, Max. Case Style VTO–9032 VTO–9050 VTO–9068 VTO–9090 320–640 MHz 10 mW/+10 dBm ± 2 dB 0° to +65°C 12 MHz 20 MHz 5 MHz/V –14 dB –60 dB 500–1000 MHz 10 mW/+ 10 dBm ± 2 dB 0° to +65°C 20 MHz 20 MHz 5 MHz/V –10 dB –60 dB 0 VDC 20 VDC +20 VDC 200 pF 0 VDC 20 VDC +20 VDC 200 pF 0 VDC 20 VDC +20 VDC 190 pF 2 VDC 18 VDC +20 VDC 190 pF –95 dBc/Hz –103 dBc/Hz –100 dBc/Hz –108 dBc/Hz –95 dBc/Hz –103 dBc/Hz –100 dBc/Hz –108 dBc/Hz +15 VDC 50 mA TO–8V +15 VDC 50 mA TO–8V +15 VDC 50 mA TO–8V +15 VDC 50 mA TO–8V 680–1360 MHz, 900–1600 MHz 10 mW/+10 d Bm 10 mW/+10 dBm ± 2 dB ± 2 dB 0° to +65°C 0° to +65°C 20 MHz 20 MHz 25 MHz 25 MHz 6 MHz/V 6 MHz/V –14 dB –14 dB –60 dB –60 dB Electrical and Performance Specifications Guaranteed Specifications @ 25°C Case Temperature (0° to +65°C Operating Temperature) Model No. Frequency Range, Min. Power Output Into 50–ohm load, Min. Power Output Variation @ 25°C, Max. Operating Case Temperature Range Frequency Drift Over Operating Temperature, Typ. Pulling Figure (12 dB Return Loss), Typ. Pushing Figure, +15 VDC Supply, Typ. Harmonics, Below Carrier, Typ. Spurious Output Below Carrier, Min. Tuning Voltage Low Frequency High Frequency Maximum Tuning Voltage Tuning Port Capacitance, Nom. Phase Noise, Single Sideband, 1 Hz, Bandwidth, Typ. 50 kHz From Carrier 100 kHz From Carrier Input Power, ± 1% Regulation Voltage,Nom. Current, Max. Case Style 9-31 VTO–9120 VTO–9130 1200–2000 MHz 10 mW/+10 dBm ± 2 dB 0° to +65°C 25 MHz 25 MHz 10 MHz/V –14 dB –60 dB 1300–2300 MHz 10 mW/+10 dBm ± 1.5 dB 0° to +65°C 25 MHz 50 MHz 10 MHz/V –15 dB –60 dB 3± 1 VDC 12± 2 VDC +20 VDC 100 pF 2 VDC Min. 20 VDC Max. + 20 VDC 100 pF –97 dBc/Hz –105 dBc/Hz –97 dBc/Hz –105 dBc/Hz +15VDC 50 mA TO–8V +15VDC 50 mA TO–8V 13 11 1000 POWER OUTPUT 100 TUNING CURVE 500 MODULATION SENSITIVITY 0 5 0 10 15 20 0 25 LOG £(f), dBc/Hz –40 17 15 MODULATION SENSITIVITY, MHz/V POWER FREQUENCY, OUTPUT, dBm MHz Typical Performance @ 25ºC Case Temperature –60 –80 –100 –120 –140 –160 1K 10K 100K 1M 10M FOURIER FREQUENCY, Hz Figure 2. VTO-9032 Normalized Phase Noise @ 640 MHz S.S.B. Power Spectral Density. TUNING VOLTAGE, VDC 16 14 12 10 1500 POWER OUTPUT 100 TUNING CURVE 1000 MODULATION SENSITIVITY 500 0 0 2 4 6 8 10 12 14 0 16 18 20 LOG £(f), dBc/Hz –40 MODULATION SENSITIVITY, MHz/V FREQUENCY, MHz POWER OUTPUT, dBm Figure 1. VTO-9032 Power Output, Frequency and Modulation Sensitivity vs. Tuning Voltage –60 –80 –100 –120 –140 –160 1K 10K 100K 1M 10M FOURIER FREQUENCY, Hz Figure 4. VTO-9050 Normalized Phase Noise @ 1000 MHz S.S.B. Power Spectral Density. TUNING VOLTAGE, VDC POWER OUTPUT TUNING CURVE 1374 100 1178 80 962 60 MODULATION SENSITIVITY 786 590 40 20 0 2 4 6 8 10 12 14 16 18 20 22 TUNING VOLTAGE, VDC Figure 5. VTO-9068 Power Output, Frequency and Modulation Sensitivity vs. Tuning Voltage. 9-32 LOG £(f), dBc/Hz –40 11 10 9 8 7 MODULATION SENSITIVITY, MHz/V FREQUENCY, MHz POWER OUTPUT, dBm Figure 3. VTO-9050 Power Output, Frequency and Modulation Sensitivity vs. Tuning Voltage. –60 –80 –100 –120 –140 –160 1K 10K 100K 1M 10M FOURIER FREQUENCY, Hz Figure 6. VTO-9068 Normalized Phase Noise @ 1360 MHz S.S.B. Power Spectral Density. POWER OUTPUT TUNING CURVE FREQUENCY, MHz 1670 250 1435 200 1206 150 974 MODULATION SENSITIVITY 742 0 0 2 4 6 8 10 12 14 16 18 20 TUNING VOLTAGE, VDC 100 50 0 22 LOG £(f), dBc/Hz –20 17 16 15 14 13 12 11 MODULATION SENSITIVITY, MHz/V POWER OUTPUT, dBm Typical Performance @ 25ºC Case Temperature (continued) –40 –60 –80 –100 –120 –140 –160 1K 10K 100K 1M FOURIER FREQUENCY, Hz 10M Figure 8. VTO-9090 Noise @ 1000 MHz Single Sideband Phase Noise. –40 14 12 10 2500 POWER OUTPUT TUNING CURVE 100 2000 1500 1000 MODULATION SENSITIVITY 0 5 10 15 TUNING VOLTAGE, VDC 0 20 LOG £(f), dBc/Hz 16 MODULATION SENSITIVITY, MHz/V FREQUENCY, MHz POWER OUTPUT, dBm Figure 7. VTO-9090 Power Output, Frequency and Modulation Sensitivity vs. Tuning Voltage. –60 –80 –100 –120 –140 –160 1K 10K 100K 1M FOURIER FREQUENCY, Hz 10M Figure 10. VTO-9120 Normalized Phase Noise @ 2000 MHz S.S.B. Power Spectral Density. 12 10 3000 POWER OUTPUT 200 2500 FREQUENCY, MHz TUNING CURVE MODULATION SENSITIVITY 2000 100 1500 1000 0 5 10 15 0 20 TUNING VOLTAGE, VDC Figure 11. VTO-9130 Power Output, Frequency and Modulation Sensitivity vs. Tuning Voltage. 9-33 LOG £(f), dBc/Hz –40 16 14 MODULATION SENSITIVITY, MHz/V POWER OUTPUT, dBm Figure 9. VTO-9120 Power Output, Frequency and Modulation Sensitivity vs. Tuning Voltage. –60 –80 –100 –120 –140 –160 1K 10K 100K 1M 10M FOURIER FREQUENCY, Hz Figure 12. VTO-9130 Normalized Phase Noise @ 2300 MHz S.S.B. Power Spectral Density. TO-8V Case Drawing .300 TYP .20 .150 TYP .017 +.002 –.001 GROUND RF OUT 3 .50 DIA 2 .300 TYP .45 DIA 4 .150 TYP GLASS RING .060 DIA TYP (3X) 1 CASE GROUND V TUNE 0.22 MIN V+ 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 9-34 clamp is placed over the device under test and secured by machine 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 frequencies above 8 GHz. This is due to small differences in lengths of test fixture RF output connector pins. TUNING VOLTAGE CONNECTOR .53 VTO IN PLACE TUNING VOLTAGE .35 POWER INPUT CONNECTOR + TUNING VOLTAGE PIN .83 DCPIN VDC .35 .45 GROUND .20 .55 .65 (a) GROUND .35 RFOUT .15 RFOUT .70 (b) (c) + TUNING VOLTAGE CONNECTOR OPTIONS .150 TYP .300 TYP GROUND 3 SERIES TUNING VOLTAGE RF OUTPUT TF-801 SMA SMA TF-802 SMA TYPE N GROUND TAB ON PACKAGE 2 .45 CASE GROUND 4 1 RFOUT .150 TYP +DC VOLTAGE (Bottom View) Figure 13. TO-8 Test Fixture. 9-35