CHARACTERISTIC

TYPICAL

MIN/MAX

Ta= 25 ºC

Ta = -20 ºC to +70 ºC

Frequency (MHz)

1950

1950

Supply Power DC

15

15

mA

150

160

PHASE LOCKED OSCILLATOR

VSWR

1.5

2.0

Spurious (dBc)

-70

-60

Output Power (dBm)

+10

+9

Specifications

Features

!

!

!

!

! Low Phase Noise: -132 dBc/Hz @ 100 kHz

!

!

!

!

! Low Spurious: -70 dBc Typical

!

!

!

!

! Internal Reference Design

!

!

!

!

! Environmental Screening Available

Harmonics (dBc)

-25

-20

Lock Indicator

TTL (High=Locked)

TTL (Low=Unlocked)

Storage Temperature

-55 ºC

+125 ºC

Spectrum Microwave, Inc.

2707 Black Lake Place Phila, Pa. 19154

www.SpectrumMicrowave.com

PH: 215-464-4000 FAX: 215-464-4001

Rev.

9/22/08

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.

Phase Noise (dB)

-84 dBc/Hz @ 100 Hz

-113 dBc/Hz @ 1 kHz

-121 dBc/Hz @ 10 kHz

-119 dBc/Hz @ 30 kHz

-132 dBc/Hz @ 100 kHz

-143 dBc/Hz @ 1 MHz

Variation Over

Temperature (dBm)

+0.75

+1

Stability (ppm)

+1

+15