Broadband VCOs VTO-4500-670 pages

3 to 6 GHz
VOLTAGE TUNED OSCILLATOR
VTO-4500-67M
VTO-4500-67T
Overview:
The VTO-4500-67 is a low-noise, wideband source
for applications in military systems and wireless highspeed communications systems. This low-noise source
uses a high-performance, low-noise silicon bi-polar
junction transistor (Si BJT) in conjunction with a hyperabrupt varactor diode to provide tuning capability. A
GaAs MMIC buffer
Features:
amplifier is used to
• Operating frequency 3 to 6 GHz
provide the necessary power output
• Output power 10 dBm min.
and load isolation.
• Phase noise < -103 dBc/Hc @ 100 kHz.
• Low power consumption
• Modulation sensitivity 125 to 350 MHz/V
• Tuning voltage 0.5 to 20 V
Applications:
• Military systems
• Digital radios
• Low-noise wideband source
Specifications
ABSOLUTE MAXIMUM RATINGS
PARAMETER
ELECTRICAL SPECIFICATIONS (continued)
UNITS
RATING
PARAMETER
Positive Supply Voltage
V
10
Output Power (50 ohms load)
Tuning Voltage
V
22
Tuning Sensitivity
Operating Temperature
C
-10° to +85°
Tuning Sensitivity Ratio
Storage Temperature
C
-50° to +125°
Modulation Bandwidth
UNITS
MIN.
GHz
3
Vt @ 3 GHz
V
Vt @ 6 GHz
V
TYP.
MAX.
dBm
10
15
MHz/V
125
350
2:1
20
Output Return Loss
dB
12
Second Harmonic (below carrier)
dBc
-15
MAX.
Third Harmonic (below carrier)
dBc
-20
6
Spurious Output (below carrier)
dBc
-60
Phase Noise @ 100 kHz from fo
dBc/Hz
-103
Phase Noise @ 10 MHz from fo
dBc/Hz
0.5
Center Frequency fo
TYP.
MIN.
MHz
ELECTRICAL SPECIFICATIONS (measured at 0° to +70°)
PARAMETER
UNITS
20
14
-100
-135
Phase Matrix, Inc. m 109 Bonaventura Drive, San Jose CA 95134 m Tel: 1-408-428-1000 m www.phasematrix.com