SDI LNFR-100E Bedienungsanleitung PDF herunterladen (Seite 36)

LOW NOISE FREQUENCY REFERENCE, LNFR-100E

FEATURES

 Low environmental sensitivity

 Ultra-low phase noise

 Very low spurious

APPLICATIONS

 Earth station frequency reference

 Phase noise measurements

 Reference frequency generation

 Telecommunications standard

DESCRIPTION

The LNFR-100E is a high performance 10 MHz distributed frequency reference. It contains a 5 MHz SC-cut

ovenized oscillator, a low noise frequency doubler and a distribution amplifier module. The 10 MHz signal is

distributed by the distribution amplifier to provide four 10 MHz outputs on the back panel. Typical cross

-channel isolation is 70 dB and reverse isolation is typically greater than 75 dB. The distribution module does

not degrade the phase noise performance of the oscillator that is typically –142 dBc/Hz @ Fourier frequency of

10 Hz and –170 dBc/Hz @ Fourier frequency greater than 10 kHz. The LNFR-100E outputs are matched to

50 ohms to obtain better than 25 dB return loss. The LNFR-100E can be phase locked via an electrical tuning

port or by providing an external 10 MHz reference. A 6-pin alarm output on the rear panel with positive contact

closure between pins A and D indicate an external locked status. The alarm load should not exceed 0.5 A at

30 VDC.

SpectraDynamics, Inc. ● 1849 Cherry Street Unit 2, Louisville CO, 80027 ● Phone (303) 665 1852 ● Fax (303) 604 6088

www.spectradynamics.com

LNFR-100 SELECTION GUIDE

Product Name

Standard Outputs

Frequency (MHz)

LNFR-100E

Four buffered outputs

LNFR-100E8

Eight buffered outputs

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SDI LNFR-100E Bedienungsanleitung Seite 36