VTO-8060 HP [Agilent(Hewlett-Packard)], VTO-8060 Datasheet

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VTO-8060

Manufacturer Part Number
VTO-8060
Description
Varactor-Tuned Oscillators
Manufacturer
HP [Agilent(Hewlett-Packard)]
Datasheet
Varactor-Tuned Oscillators
Technical Data
Features
• 600 MHz to 10.5 GHz
• Fast Tuning
• +7 to +13 dBm Output
• Hermetic Thin-film
Description
HP VTO-8000 Series oscillators
use a silicon transistor chip as a
negative resistance oscillator. The
oscillation frequency is deter-
mined by a silicon abrupt varactor
diode acting as a voltage-variable
capacitor in a thin-film micro-
stripline resonator. This provides
extremely fast tuning speed,
limited primarily by the internal
impedance of the user-supplied
voltage driver. Fast settling is
another feature of the HP
VTO-8000 Series oscillators.
Typical settling times for the
VTO-8090 are <200 kHz within one
microsecond while the VTO-8950
settles to <2 MHz within two
microseconds referenced to ten
milliseconds. The VTO-8850
combines a bipolar transistor
oscillator with a GaAs FET buffer
stage. This GaAs FET buffer
isolates the oscillator from
Coverage
Power
Construction
1.5 dB Output Flatness
variations in load impedance for
low frequency pulling, allows the
oscillator to run lighty-loaded for
low phase noise content and
provides +10 dBm of minimum
output power over the full tuning
range. The VTO-8000 Series
varactor-tuned oscillators are
packaged in TO-8 transistor cans
for simple installation in a
conventional 50-ohm micro-
stripline PC board. They are ideal
for most compact, lightweight
commercial and military equip-
ment 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
Frequency agile systems, such as
digitally controlled receivers and
active jamming transmitters often
use externally linearized
varactor-tuned oscillators. HP
oscillators are monotonic making
external linearization easy using
analog (opamp) or digital
(EPROM) linearizing techniques.
The HP VTO Series has been
designed with a tuning input
bypass capacitance which is
sufficient to provide the neces-
sary RF filtering action yet as low
9-23
VTO-8000 Series
Pin Configuration
TO-8V
as possible to maximize V/ T
characteristics for excellent
tuning speeds. Used in a phase
locked loop PLL circuit, a VTO
provides a receiver LO with
stability equivalent to the refer-
ence oscillator (usually crystal
controlled), yet variable in
discrete steps or continuously
depending on the PLL
configuration.
Another important aspect of VTOs
used in an LO application is their
power vs. frequency flatness
( 1.5 dB). This assures that once a
receiver mixer is biased for best
dynamic range the local oscillator
drive will remain constant
throughout the tuning range
without complex leveling
circuitry.
+V
TUNE
+DC
VOLTAGE
2
3
1
GROUND
CASE GROUND
4
RF
OUT
5964-9815E

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VTO-8060 Summary of contents

Page 1

... HP oscillators are monotonic making external linearization easy using analog (opamp) or digital (EPROM) linearizing techniques. The HP VTO Series has been designed with a tuning input bypass capacitance which is sufficient to provide the neces- sary RF filtering action yet as low 9-23 VTO-8000 Series ...

Page 2

... VDC –95 dBc/Hz –100 dBc/Hz –102 dBc/Hz –108 dBc/Hz +15 VDC +15 VDC TO–8V TO–8V 9-24 VTO–8150 VTO–8200 1500–2500 MHz 2000–3000 MHz 10 mW/+10 dBm 10 mW/+10 dBm 1.5 dB 1 MHz 30 MHz 35 MHz 35 MHz 6 MHz/V 6 MHz/V – ...

Page 3

... VDC +15 VDC 50 mA 100 mA TO–8V TO–8V Output Matching RF Output 9-25 VTO–8850 VTO–8950 8500–9600 MHz 9500–10500 MHz 10 mW/+10 dBm 10 mW/+10 dBm 1 +65 C 110 MHz 160 MHz 10 MHz 20 MHz 15 MHz/V 10 MHz/V – ...

Page 4

Typical Performance @ 25ºC Case Temperature 9-26 ...

Page 5

9-27 ...

Page 6

... TUNING CURVE 10 MODULATION SENSITIVITY TUNING VOLTAGE, VDC Figure 13. VTO–8950 Power Output, Frequency and Modulation Sensitivity vs. Tuning Voltage. TO-8V Case Drawing .18 .017 +.002 –.001 .50 .45 DIA DIA .22 MIN –20 8650 –40 8240 –60 –80 800 – ...

Page 7

... 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 .53 VTO IN PLACE GROUND .20 RF OUT .55 .65 (a) CONNECTOR OPTIONS TUNING SERIES VOLTAGE TF-801 ...

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