Datasheet VTO-9120, VTO-9130, VTO-9090, VTO-9068, VTO-9050 Datasheet (HP)

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

Typical Performance @ 25ºC Case Temperature

17
15

13

POWER

11

1000

OUTPUT, dBm

500

MHz

FREQUENCY,

0

0

5 10152025

TUNING VOLTAGE, VDC

Figure 1. VTO-9032 Power Output, Frequency
and Modulation Sensitivity vs. Tuning Voltage

POWER OUTPUT

TUNING CURVE

MODULATION

SENSITIVITY

100

MODULATION

SENSITIVITY, MHz/V

0

–40
–60

–80
–100
–120
–140

LOG £(f), dBc/Hz

–160

1K 10K 100K 1M 10M

FOURIER FREQUENCY, Hz

Figure 2. VTO-9032 Normalized Phase Noise
@ 640 MHz S.S.B. Power Spectral Density.

16
14

12

POWER

10

1500

OUTPUT, dBm

1000

MHz

500

FREQUENCY,

0

0

2468 20

TUNING VOLTAGE, VDC

POWER OUTPUT

TUNING CURVE

MODULATION

SENSITIVITY

10 12 14 16 18

Figure 3. VTO-9050 Power Output, Frequency
and Modulation Sensitivity vs. Tuning Voltage.

11
10

9
8

POWER

7

OUTPUT, dBm

1374
1178

962

MHz

786

FREQUENCY,

590

0

2468 20

TUNING VOLTAGE, VDC

POWER OUTPUT

TUNING CURVE

MODULATION

SENSITIVITY

10 12 14 16 18

Figure 5. VTO-9068 Power Output, Frequency and
Modulation Sensitivity vs. Tuning Voltage.

100

0

100
80
60
40
20

22

LOG £(f), dBc/Hz

MODULATION

SENSITIVITY, MHz/V

LOG £(f), dBc/Hz

MODULATION

SENSITIVITY, MHz/V

–40

–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.

–40

–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.

9-32

Typical Performance @ 25ºC Case Temperature (continued)

17
16
15
14
13

POWER

12
11

OUTPUT, dBm

1670
1435
1206

MHz

974
742

FREQUENCY,

0

0

2468 22

TUNING VOLTAGE, VDC

POWER OUTPUT

TUNING CURVE

MODULATION

SENSITIVITY

10 12 14 16 18 20

Figure 7. VTO-9090 Power Output, Frequency
and Modulation Sensitivity vs. Tuning Voltage.

16
14

12

POWER

10

2500

OUTPUT, dBm

2000

MHz

1500

FREQUENCY,

1000

0

520

TUNING VOLTAGE, VDC

POWER OUTPUT

TUNING CURVE

MODULATION

SENSITIVITY

10 15

Figure 9. VTO-9120 Power Output, Frequency
and Modulation Sensitivity vs. Tuning Voltage.

–20
–40
–60

–80

250
200
150
100

MODULATION

50
0

100

0

SENSITIVITY, MHz/V

MODULATION

SENSITIVITY, MHz/V

–100
–120

LOG £(f), dBc/Hz

–140
–160

Figure 8. VTO-9090 Noise @ 1000 MHz
Single Sideband Phase Noise.

–40
–60

–80
–100
–120
–140

LOG £(f), dBc/Hz

–160

Figure 10. VTO-9120 Normalized Phase Noise
@ 2000 MHz S.S.B. Power Spectral Density.

1K 10K 100K 1M 10M

FOURIER FREQUENCY, Hz

1K 10K 100K 1M 10M

FOURIER FREQUENCY, Hz

16
14

12
10

POWER

3000

OUTPUT, dBm

2500

2000

MHz

1500

FREQUENCY,

1000

05 2010 15

MODULATION

SENSITIVITY

TUNING VOLTAGE, VDC

POWER OUTPUT

TUNING CURVE

Figure 11. VTO-9130 Power Output, Frequency
and Modulation Sensitivity vs. Tuning Voltage.

200

100

MODULATION

0

–40

–60

–80
–100
–120

LOG £(f), dBc/Hz

–140
–160

SENSITIVITY, MHz/V

9-33

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

.20

.50

.45

DIA

DIA

0.22
MIN

.017 +.002

–.001

.300
TYP

.150
TYP

.150
TYP

.300
TYP

3

2

1

V

TUNE

APPROXIMATE WEIGHT 1.7 GRAMS

NOTES (UNLESS OTHERWISE SPECIFIED):

1. DIMENSIONS ARE SPECIFIED IN INCHES

2. TOLERANCES: xx ± .02

GROUND

GLASS RING
.060 DIA TYP

4

GROUND

+

V

xxx ± .010

RF OUT

(3X)

CASE

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 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.

9-34

VTO IN
PLACE

.53

TUNING VOLTAGE

CONNECTOR

POWER INPUT

CONNECTOR

.35

+ TUNING
VOLTAGE
PIN

TUNING VOLTAGE

DC

PIN

GROUND

.20

.55

RF

OUT

.65

CONNECTOR OPTIONS

SERIES

TF-801
TF-802

TUNING

VOLTAGE

SMA
SMA

Figure 13. TO-8 Test Fixture.

.83

.45

RF

OUTPUT

SMA

TYPE N

.15

.70

(b)(a)

.35

.35

+ TUNING
VOLTAGE

GROUND

.150
TYP

.45

.150
TYP

RF

OUT

(c)

.300
TYP

3

4

2

1

+DC VOLTAGE

(Bottom View)

V

DC

GROUND

TAB ON PACKAGE

GROUND

CASE

GROUND

RF

OUT

9-35