PHASE LOCKED OSCILLATOR
MODEL
611208
(500 MHz)
Features
!
!
!
!
Low Phase Noise: -138 dBc/Hz @ 100 kHz
Low Spurious: -70 dBc Typical
Internal Reference Design
Environmental Screening Available
Specifications
CHARACTERISTIC
Frequency (MHz)
Output Power (dBm)
Variation Over
Temperature (dBm)
Spurious (dBc)
Phase Noise (dB)
TYPICAL
Ta= 25
ºC
500
+10
+0.75
-70
-96 dBc/Hz @ 100 Hz
-125 dBc/Hz @ 1 KHz
-133 dBc/Hz @ 10 KHz
-131 dBc/Hz @ 30 KHz
-138 dBc/Hz @ 100 KHz
-150 dBc/Hz @ 1 MHz
1.5
-25
TTL (High=Locked)
+1
-55
ºC
15
150
MIN/MAX
Ta = -20
ºC
to +70
ºC
500
+9
+1
-60
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.
VSWR
Harmonics (dBc)
Lock Indicator
Stability (ppm)
Storage Temperature
Supply Power DC
mA
2.0
-20
TTL (Low=Unlocked)
+15
+125
ºC
15
160
Spectrum Microwave, Inc.
www.SpectrumMicrowave.com
2707 Black Lake Place Phila, Pa. 19154
PH: 215-464-4000 FAX: 215-464-4001
Rev.
9/22/08