HP VTO-9120, VTO-9130, VTO-9090, VTO-9068, VTO-9050 Datasheet
Hyperabrupt Varactor-Tuned
GROUND
CASE GROUND
+DC
VOLTAGE
RF OUT
+V
3
1
24
TUNE
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
Series Feedback
+15 V
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
RF OutputOutput Matching
Pin Configuration
TO-8V
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.
Varactor
V Tune
5964-9814E
Capacitor
Tuning
Port
Resonator
9-30
Electrical and Performance Specifications
Guaranteed Specifications @ 25°C Case Temperature (0° to +65° C Operating Temperature)
Model No. VTO–9032 VTO–9050 VTO–9068 VTO–9090
Frequency Range, Min. 320–640 MHz 500–1000 MHz 680–1360 MHz, 900–1600 MHz
Power Output Into 50–ohm Load, Min . 10 mW/+10 dBm 10 mW/+ 10 dBm 10 mW/+10 d Bm 10 mW/+10 dBm
Power Output Variation @ 25°C, Max. ± 2 dB ± 2 dB ± 2 dB ± 2 dB
Operating Carrier Temperature Range 0° to +65°C0° to +65°C0° to +65° C0° to +65°C
Frequency Drift Over Operating Temperature, Typ. 12 MHz 20 MHz 20 MHz 20 MHz
Pulling Figure (12 dB Return Loss), Typ. 20 MHz 20 MHz 25 MHz 25 MHz
Pushing Figure, +15 VDC Supply, Typ. 5 MHz/V 5 MHz/V 6 MHz/V 6 MHz/V
Harmonics, Below Carrier, Typ. –14 dB –10 dB –14 dB –14 dB
Spurious Output Below Carrier, Min. –60 dB –60 dB –60 dB –60 dB
Tuning Voltage
Low Frequency, Min. 0 VDC 0 VDC 0 VDC 2 VDC
High Frequency, Max 20 VDC 20 VDC 20 VDC 18 VDC
Maximum Tuning Voltage +20 VDC +20 VDC +20 VDC +20 VDC
Tuning Port Capacitance, Nom. 200 pF 200 pF 190 pF 190 pF
Phase Noise, Single Sideband,
1 Hz Bandwidth, Typ.
50 kHz From Carrier –95 dBc/Hz –100 dBc/Hz –95 dBc/Hz –100 dBc/Hz
100 kHz From Carrier –103 dBc/Hz –108 dBc/Hz –103 dBc/Hz –108 dBc/Hz
Input Power, ± 1% Regulaltion
Voltage, Nom. +15 VDC +15 VDC +15 VDC +15 VDC
Current, Max. 50 mA 50 mA 50 mA 50 mA
Case Style TO–8V TO–8V TO–8V TO–8V
Electrical and Performance Specifications
Guaranteed Specifications @ 25°C Case Temperature (0° to +65° C Operating Temperature)
Model No. VTO–9120 VTO–9130
Frequency Range, Min. 1200–2000 MHz 1300–2300 MHz
Power Output Into 50–ohm load, Min. 10 mW/+10 dBm 10 mW/+10 dBm
Power Output Variation @ 25°C, Max. ± 2 dB ± 1.5 dB
Operating Case Temperature Range 0° to +65° C0° to +65°C
Frequency Drift Over Operating Temperature, Typ. 25 MHz 25 MHz
Pulling Figure (12 dB Return Loss), Typ. 25 MHz 50 MHz
Pushing Figure, +15 VDC Supply, Typ. 10 MHz/V 10 MHz/V
Harmonics, Below Carrier, Typ. –14 dB –15 dB
Spurious Output Below Carrier, Min. –60 dB –60 dB
Tuning Voltage
Low Frequency 3±1 VDC 2 VDC Min.
High Frequency 12± 2 VDC 20 VDC Max.
Maximum Tuning Voltage +20 VDC + 20 V DC
Tuning Port Capacitance, Nom. 100 pF 100 pF
Phase Noise, Single Sideband,
1 Hz, Bandwidth, Typ.
50 kHz From Carrier –97 dBc/Hz –97 dBc/Hz
100 kHz From Carrier –105 dBc/Hz –105 dBc/Hz
Input Power, ± 1% Regulation
Voltage,Nom. +15VDC +15VDC
Current, Max. 50 mA 50 mA
Case Style TO–8V TO–8V
9-31
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