PHASE LOCKED OSCILLATOR
MODEL 611212 (700 MHz)
Features
! Low Phase Noise: -137 dBc/Hz @ 100 kHz
! Low Spurious: -70 dBc Typical
! Internal Reference Design
! Environmental Screening Available
Specifications
Description
CHARACTERISTIC
TYPICAL
Ta= 25 ºC
700
MIN/MAX
Ta = -20 ºC to +70 ºC
700
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.
Frequency (MHz)
Output Power (dBm)
Variation Over
Temperature (dBm)
+10
+9
+0.75
-70
+1
Spurious (dBc)
-60
The resonator is soldered to a printed circuit
board and well grounded to minimize modulation
sidebands during shock and vibration.
Phase Noise (dB)
-93 dBc/Hz @ 100 Hz
-122 dBc/Hz @ 1 kHz
-130 dBc/Hz @ 10 kHz
-128 dBc/Hz @ 30 kHz
-137 dBc/Hz @ 100 kHz
-149 dBc/Hz @ 1 MHz
Buffer amplifiers are used to provide isolation
from load VSWRs; Regulators filter noise on
the DC input voltage.
VSWR
1.5
2.0
Harmonics (dBc)
Lock Indicator
Stability (ppm)
StorageTemperature
-25
TTL (High=Locked)
+1
-20
TTL (Low=Unlocked)
+15
External reference models are also available.
A lock indicator circuit is provided to signal an
out-of-lock condition.
-55 ºC
+125 ºC
Supply Power DC
mA
15
150
15
160
Spectrum Microwave, Inc.
www.SpectrumMicrowave.com
2707 Black Lake Place Phila, Pa. 19154
Rev.
9/22/08
PH: 215-464-4000 FAX: 215-464-4001
SPECTRUM [ SPECTRUM MICROWAVE, INC. ]
