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611223 Datasheet, PDF (1/2 Pages) Spectrum Microwave, Inc. – PHASE LOCKED OSCILLATOR
PHASE LOCKED OSCILLATOR
MODEL 611223 (1250 MHz)
Features
! Low Phase Noise: -135 dBc/Hz @ 100 kHz
! Low Spurious: -70 dBc Typical
! Internal Reference Design
! Environmental Screening Available
Specifications
CHARACTERISTIC
Frequency (MHz)
TYPICAL
Ta= 25 ºC
1250
MIN/MAX
Ta = -20 ºC to +70 ºC
1250
Output Power (dBm)
+10
+9
Variation Over
Temperature (dBm)
+0.75
+1
Spurious (dBc)
-70
-60
Phase Noise (dB)
-88 dBc/Hz @ 100 Hz
-117 dBc/Hz @ 1 kHz
-125 dBc/Hz @ 10 kHz
-123 dBc/Hz @ 30 kHz
-135 dBc/Hz @ 100 kHz
-146 dBc/Hz @ 1 MHz
VSWR
1.5
2.0
Harmonics (dBc)
Lock Indicator
Stability (ppm)
Storage Temperature
-25
TTL (High=Locked)
+1
-55 ºC
-20
TTL (Low=Unlocked)
+15
+125 ºC
Supply Power DC
15
15
mA
150
160
Description
Spectrum Microwave’s Series 600 Phase Locked
Oscillators use a High “Q” Coaxial Resonator in
the resonant circuit. The circuit is lightly loaded to
obtain the lowest phase noise possible.
The resonator is soldered to a printed circuit
board and well grounded to minimize modulation
sidebands during shock and vibration.
Buffer amplifiers are used to provide isolation
from load VSWRs; Regulators filter noise on
the DC input voltage.
External reference models are also available.
A lock indicator circuit is provided to signal an
out-of-lock condition.
Spectrum Microwave, Inc.
www.SpectrumMicrowave.com
2707 Black Lake Place Phila, Pa. 19154 Rev.
PH: 215-464-4000 FAX: 215-464-4001 9/22/08