PHASE LOCKED OSCILLATOR
MODEL 624107 (7000 MHz)
Features
! Low Phase Noise: -90 dBc/Hz @ 100 Hz
! Low Spurious: -70 dBc Typical
! External Reference: 100 MHz
! Environmental Screening Available
Specifications
Description
Spectrum Microwave’s Series 600 Phase Locked
Oscillators use a High “Q” Dielectric Resonator in
the resonant circuit. The circuit is lightly loaded to
obtain the lowest phase noise possible.
CHARACTERISTIC
TYPICAL
Ta= 25 ºC
7000 MHz
MIN/MAX
Ta = -20 ºC to +70 ºC
7000 MHz
Frequency
Output Power (dBm)
+13
+12
Variation Over
Temperature (dBm)
+/- 0.75 dBm
-70
+/- 1 dBm
-60
The resonator is screwed to a printed circuit
board and well grounded to minimize modulation
sidebands during shock and vibration.
Spurious (dBc)
Phase Noise (dB)
-62 dBc/Hz @ 10 Hz
-90 dBc/Hz @ 100 Hz
-115 dBc/Hz @ 1 KHz
-123 dBc/Hz @ 10 KHz
-128 dBc/Hz @ 100 KHz
Isolators are used to provide isolation from load
VSWRs. Regulators filter noise on the DC input
voltage.
VSWR
1.5
-25
2.0
-20
Harmonics (dBc)
Internal reference models are also available.
A lock indicator circuit is provided to signal an
out-of-lock condition.
External Reference
(MHz)
100
100
Lock Indicator
TTL (High=Locked)
-55 ºC
TTL (Low=Unlocked)
+125 ºC
StorageTemperature
Supply Power DC
mA
15
120
15
125
Spectrum Microwave, Inc.
www.SpectrumMicrowave.com
2707 Black Lake Place Phila, Pa. 19154
PH: 215-464-4000 FAX: 215-464-4001
Rev.
7/16/08