Series 521
COAXIALRESONATOR
OSCILLATOR
Features
1800 - 2000 MHz
ꢀ
ꢀ
Low Phase Noise Bipolar Transistor
Rugged Construction for Extreme
Environmental Conditions
Spectrum Microwave CROs produce impressive
frequency stability and phase noise when used in a
properly designed oscillator circuit.
ꢀ High Frequency Stability
VoltageTuned
ꢀ
Maximum Ratings
Specifications
Ambient OperatingTemperature .............-55ºC to +100 ºC
StorageTemperature ..............................-62ºC to +125 ºC
CaseTemperature ...............................................+125 ºC
DCVoltage ....................................................... +20 Volts
Maximum DC Tuning Voltage............................ +20 Volts
Minimum DC Tuning Voltage................................. 0 Volts
CHARACTERISTIC
TYPICAL
Ta= 25 ºC
1800 - 2000 MHz
MIN/MAX
Ta = -20 ºC to +70 ºC
1800 - 2000 MHz
Frequency
Output Power (dBm)
Spurious (dBc)
+10
-80
+13 Max.
-80
Phase Noise (dB)
@ 1800 MHz
-39 dBc/Hz @ 100 Hz
-79 dBc/Hz @ 1 KHz
-107 dBc/Hz @ 10 KHz
-129 dBc/Hz @ 100 KHz
-141 dBc/Hz @ 1 MHz
VSWR
1.5
-25
2.0
-25
Harmonics (dBc)
Frequency Pushing
Frequency Pulling
+/- .01% / Volt
+/- 0.02%
+/- .02% / Volt
+/- 0.03%
Temperature Drift
+/- 0.1%
+/- 0.15%
StorageTemperature
-55 ºC
+125 ºC
Supply Power DC
mA
15
70
15
80
NOTE: Care should always be taken to effectively ground
the case of each unit.
Mechanical Outline
Rev.
9/23/08
Spectrum Microwave · 2144 Franklin Drive N.E. · Palm Bay, Florida 32905 · PH (888) 553-7531 · Fax (888) 553-7532
Spectrum Microwave · 2707 Black Lake Place · Philadelphia, Pennsylvania 19154 · PH (215) 464-4000 · Fax (215) 464-4001
www.SpectrumMicrowave.com