SDI LNFR-100E Bedienungsanleitung PDF herunterladen (Seite 33)

DISTRIBUTED 10 MHz FREQUENCY REFERENCE, FEL-10A

FEATURES

 High isolation: > 110 dB

 Low harmonic distortion: -43 dBc

 Low phase noise

APPLICATIONS

 Reference frequency generation

 Earth station references

 Phase noise measurements

 Frequency distribution

DESCRIPTION

The FEL-10A is a low noise distributed 10 MHz frequency

reference. The device can be used to provide a stable and

spectrally pure 10 MHz reference. The FEL-10 can be

controlled via a +/- 5 VDC tuning signal or phase locked

to an external 10 MHz 1VRMS signal. The unit contains a

low noise OCXO and a high performance distribution

amplifier module. Five outputs are available with channel to

channel and reverse isolation exceeding 100 dB. The FEL-

10 is offered in a stand-alone rack-mount enclosure with

SMA connectors. The optional PLL module allows locking to

an external 10 MHz source. The PLL module has loss of

reference and loss of lock indicators.

PARAMETER CONDITIONS MIN TYP MAX UNITS

Output Level 50 ohm load 10 12 15 dBm

Output Impedance Return Loss @ 10 MHz -30 -25 dB

Distortion 50 ohm load -43 -38 dBc

Isolation output to output 110 120 dB

Temperature Stability 0 - 50 ºC +/- 2x10

-8

Mechanical Tuning +/- 1x10

-6

Electrical Tuning +/-5VDC +/- 2x10

-7

Aging 5x10

-10

/day

Stability Allan Variance t=1s 1E-11

Phase Noise 10 Hz

100 Hz

1 kHz

10 kHz

-130

-155

-165

-127

-153

-163

dBc/Hz

SPECIFICATIONS

SDI

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