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621506 Datasheet, PDF (1/2 Pages) API Technologies Corp – PHASE LOCKED OSCILLATOR
PHASE LOCKED OSCILLATOR
MODEL 621506 (850 MHz)
Features
! Low Phase Noise: -137 dBc/Hz @ 100 kHz
! Low Spurious: -70 dBc Typical
! External Reference
! Environmental Screening Available
Specifications
CHARACTERISTIC
Frequency
Output Power (dBm)
Variation Over
Temperature (dBm)
Spurious (dBc)
Phase Noise (dB)
TYPICAL
Ta= 25 ºC
850 MHz
+13
MIN/MAX
Ta = -20 ºC to +70 ºC
850 MHz
+12
+/- 0.75 dBm
-70
-109 dBc/Hz @ 100 Hz
-132 dBc/Hz @ 1 kHz
-134 dBc/Hz @ 10 kHz
-132 dBc/Hz @ 30 kHz
-137 dBc/Hz @ 100 kHz
-148 dBc/Hz @ 1 MHz
+/- 1 dBm
-60
VSWR
1.5
2.0
Harmonics (dBc)
External Reference
Lock Indicator
Storage Temperature
Supply Power DC
mA
-25
100 MHz
TTL (High=Locked)
-55 ºC
15
120
-20
1 / 200 MHz
TTL (Low=Unlocked)
+125 ºC
15
125
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.
Internal 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 3/19/09