Varactor Controlled Oscillator
21.20 - 23.60 GHz
Features
q
q
q
0.900
(22.86)
MA87827
V3.00
q
q
Excellent Tuning Linearity
Small and Lightweight
Modulation and External AFC Control Can be
Commonly Applied to Electronic Tuning Bias
±0.05% Frequency vs. Temperature Stability
Suitable for Digital or Analog Microwave Radio
Applications
AFC BIAS
GUNN BIAS
GROUND
Description
A mechanically and electronically tunable Gunn
oscillator designed to generate RF power in the range of
21.2 to 23.6 GHz. This VCO is suitable as the transmitter
in point-to-point microwave radio systems. A Gunn
diode and GaAs hyperabrupt varactor diode are coupled
in a single high Q cavity to provide low AM/FM noise,
excellent frequency and power stability with respect to
changes in operating temperature.
0.118 THRU HOLES
TO MATE WITH UG/595-U.
WR-42 WAVEGUIDE
4 PLCS.
1.375
(34.93)
2.10 MAX.
(53.34)
SELF LOCKING
MECHANICAL
FREQ. TUNER
0.535
(13.59)
Dimensions in ( ) are in mm.
Specifications
Parameter
Frequency Range
1
Power Output
Electronic Tuning Ranges
Modulation Sensitivity
Voltage Operating Range (Gunn)
2
Operating Current (Gunn)
Startup Current (Gunn)
Voltage Operating Range (Tuning)
Change Frequency vs. Temperature
3
Recommended Output Load Parameter
Operating Temperature Range (Ambient)
4
Waveguide Size/Flange
Symbol
F
P
OUT
∆F/∆V
MOD/SENS
V
OP
/GUNN
I
OP
I
TH
V
OP
/TUNING
∆F/∆V
LOAD (SWR)
T
OP
Units
GHz
mW
MHz
MHz/V
VDC
mA
mA
VDC
MHz
SWR
°C
Specifications
21.20 to 23.60
60 Min. Over T
OP
±30 Min.
5.0 to 8.0
+4.5 to +8.0
1400 Max.
1400 Max.
0 to +10.0
±0.05% Max.
<1.5:1 Max., Any Phase
-30 to +70
WR-42, UG-595/U
1. Available in 600 MHz mechanically tuned bands.
2. Specific voltage assigned by factory. Power supply should be held to ±0.10 V.
3. The frequency reference is the frequency at 25°C.
4. The ambient temperature is defined as air temperature.
5. A 2.2 microfarad capacitor is supplied between the Gunn bias pin and ground to suppress bias line oscillations.
Specifications Subject to Change Without Notice.
M/A-COM, Inc.
North America:
Tel. (800) 366-2266
Fax (800) 618-8883
s
1
Asia/Pacific: Tel. +81 (03) 3226-1671
Fax +81 (03) 3226-1451
s
Europe: Tel. +44 (1344) 869 595
Fax +44 (1344) 300 020
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