COAXIAL RESONATOR
OSCILLATOR
Features
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!
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Model 511063
1250 MHz
Low Phase Noise Bipolar Transistor
Rugged Construction for Extreme Environmental Conditions
High Frequency Stability
Maximum Ratings
Voltage Tuning Option
Specifications
CHARACTERISTIC
Frequency
Output Power (dBm)
Spurious (dBc)
Phase Noise (dB)
TYPICAL
Ta= 25
ºC
1250 MHz
+10
-60
-47 dBc/Hz @ 100 Hz
-87 dBc/Hz @ 1 KHz
-113 dBc/Hz @ 10 KHz
-137 dBc/Hz @ 100 KHz
-148 dBc/Hz @ 1 MHz
1.5
-20
+/- 0.1% / Volt
+/- 0.02%
+/- 0.01%
-55
ºC
15
150
2.0
-20
+/- .02% / Volt
+/- 0.03%
+/- 0.02%
+125
ºC
15
155
MIN/MAX
Ta = -10
ºC
to +60
ºC
1250 MHz
+13 Max.
-60
Ambient Operating Temperature ............. -55ºC to +100 ºC
Storage Temperature .............................. -62ºC to +125 ºC
Case Temperature ............................................... +125 ºC
DC Voltage ....................................................... +20 Volts
Maximum DC Tuning Voltage ............................ +20 Volts
Minimum DC Tuning Voltage .................................. 0 Volts
NOTE: Care should always be taken to
effectively ground the case of each unit.
VSWR
Harmonics (dBc)
Frequency Pushing
Frequency Pulling
Temperature Drift
Storage Temperature
Supply Power DC
mA
Spectrum Microwave CROs produce impressive fre-
quency stability and phase noise when used in a prop-
erly designed oscillator circuit. The units can be voltage
tuned with a varactor over 5% bandwidth and still retain
excellent stability and phase noise performance.
Mechanical Outline
Spectrum Microwave · 2144 Franklin Drive N.E. · Palm Bay, Florida 32905 · PH (888) 553-7531 · Fax (888) 553-7532
Rev.
3/6/08
www.SpectrumMicrowave.com
Spectrum Microwave · 2707 Black Lake Place · Philadelphia, Pennsylvania 19154 · PH (215) 464-4000 · Fax (215) 464-4001
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