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Wide Operating Temperature Range
Low Power Consumption
Field Adjustable Tuning
Excellent SSB Phase-Noise
Internal DC Power Regulator
No Subharmonics
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Wide Electronic Tuning
Wide Mechanical Tuning
Internal Buffer Amplifiers
Higher Output Power
CTI offers a complete line of free-running fundamental DROs covering the range 3 to 18 GHz. Designed for use in both
digital and analog equipment, DROs find application in LMDS, SDH/SONET, Digital Radio and other wired and wireless
systems requiring high stability and low noise in an extremely small package. All models incorporate low noise transistors
and a high-Q dielectric resonator. In addition, each unit is protected from variations and transients in the DC power supply
by a voltage regulator. The fundamental DROs offered by CTI can be mechanically tuned by as much as 2%. Electrical
tuning ranges up to 0.25% also provided. Typical phase-noise for a 5 GHz unit is -125 dBc at 100 kHz offset. Output
power is normally +14 dBm with a power requirement from +12 Vdc to +15 Vdc.
Features such as low phase noise, small size, low power consumption and low cost make CTI's DRO products the best
value on the market today.
*
Output Frequency
3-4.5 GHz
3-8 GHz
8-12 GHz
12-18 GHz
Mech. Tuning Range
up to 2%
up to 2%
up to 2%
up to 2%
Elec. Tuning Range
up to .25%
up to .25%
up to .25%
up to .25%
Output Power
+14 dBm
+14 dBm
+14 dBm
+14 dBm
Mech. Variation
±2 dB
±2 dB
±2 dB
±2 dB
Elec. Variation
±1 dB
±1 dB
±1 dB
±1 dB
Output Impedance
50 Ohms
50 Ohms
50 Ohms
50 Ohms
Load VSWR
1.5 to 1
1.5 to 1
1.5 to 1
1.5 to 1
Pulling***
±500 KHz
±1 MHz
±5 MHz
±7 MHz
Supply Voltage
+12 to 24
Vdc
+12 to 24
Vdc
+12 to 24
Vdc
+12 to 24 Vdc
Regulation
±1 Vdc
±1 Vdc
±1 Vdc
±1 Vdc
Current**
125 mA
125 mA
75 mA
75 mA
Pushing
10 kHz/V
20 kHz/V
30 kHz/V
40 kHz/V
Tuning Voltage
Range
1 Vdc to 12
Vdc
1 Vdc to 12
Vdc
1 Vdc to 12
Vdc
1 Vdc to 12 Vdc
Max. Rate of Tuning
12 MHz
12 MHz
12 MHz
12 MHz
Spurious
-80 dBc
-80 dBc
-80 dBc
-80 dBc
Harmonics
-25 dBc
-25 dBc
-25 dBc
-25 dBc
Phase-Noise (dBc/Hz) See PhaseNoise Table
See PhaseNoise Table
See PhaseNoise Table
See Phase-Noise
Table
Freq. Stability
5 ppm/°C
(Typ.)
5 ppm/°C
(Typ.)
5 ppm/°C
(Typ.)
5 ppm/°C (Typ.)
Dimensions*
See Outline
Drawing
See Outline
Drawing
See Outline
Drawing
See Outline Drawing
Output Connections
SMA
SMA
SMA
SMA
Temp. Operating
(Typ.)
-40°C to
+75°C
-40°C to
+75°C
-40°C to
+75°C
-40°C to +75°C
Additional configurations available/or required for some options
Higher current required for models with internal buffer amplifiers
***
Pulling can be significantly improved with internal buffer amplifiers
**
Frequency Offset
From Carrier
Phase Noise
-dBc/Hz
5 GHz
Phase Noise
-dBc/Hz
10 GHz
Phase Noise
-dBc/Hz
15 GHz
10k
-100
-80
-75
100k
-125
-115
-110
1M
-145
-140
-135
Note: Phase noise may degrade for wide electrical and/or mechanical tuning ranges.
Please contact the factory for an accurate quote on phase noise.
DRO 3-8 GHz
DRO 8-12 GHz
DRO 11-18 GHz